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| author | Roger Frank <rfrank@pglaf.org> | 2025-10-15 02:35:22 -0700 |
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| committer | Roger Frank <rfrank@pglaf.org> | 2025-10-15 02:35:22 -0700 |
| commit | 6eef63412f4f9886eecb7ab1900c019a4aa17edb (patch) | |
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diff --git a/.gitattributes b/.gitattributes new file mode 100644 index 0000000..6833f05 --- /dev/null +++ b/.gitattributes @@ -0,0 +1,3 @@ +* text=auto +*.txt text +*.md text diff --git a/27557-8.txt b/27557-8.txt new file mode 100644 index 0000000..f3e969a --- /dev/null +++ b/27557-8.txt @@ -0,0 +1,3843 @@ +Project Gutenberg's Learning to Fly, by Claude Grahame-White and Harry Harper + +This eBook is for the use of anyone anywhere at no cost and with +almost no restrictions whatsoever. You may copy it, give it away or +re-use it under the terms of the Project Gutenberg License included +with this eBook or online at www.gutenberg.org + + +Title: Learning to Fly + A Practical Manual for Beginners + +Author: Claude Grahame-White + Harry Harper + +Release Date: December 18, 2008 [EBook #27557] + +Language: English + +Character set encoding: ISO-8859-1 + +*** START OF THIS PROJECT GUTENBERG EBOOK LEARNING TO FLY *** + + + + +Produced by the Online Distributed Proofreading Team +at https://www.pgdp.net (This file was produced from +images generously made available by The Internet +Archive/American Libraries.) + + + + + + + + + +LEARNING TO FLY + + + [Illustration: _Photo by Topical Press Agency._ + A SCHOOL MACHINE WELL ALOFT.] + + + LEARNING TO FLY + + A PRACTICAL MANUAL FOR + BEGINNERS + + BY + + CLAUDE GRAHAME-WHITE + AND + HARRY HARPER + + _FULLY ILLUSTRATED_ + + NEW YORK + THE MACMILLAN COMPANY + + + PRINTED IN ENGLAND. + + + + +CONTENTS + + + I. THEORIES OF TUITION 9 + + II. TEMPERAMENT AND THE AIRMAN 20 + + III. FIRST EXPERIENCES WITH AN AEROPLANE 24 + (AS DESCRIBED BY MR. GRAHAME-WHITE) + + IV. THE CONTROLLING OF LATEST-TYPE CRAFT 31 + + V. THE STAGES OF TUITION 38 + + VI. THE TEST FLIGHTS 53 + + VII. PERILS OF THE AIR 56 + + VIII. FACTORS THAT MAKE FOR SAFETY 76 + + IX. A STUDY OF THE METHODS OF GREAT PILOTS 82 + + X. CROSS-COUNTRY FLYING 92 + + XI. AVIATION AS A PROFESSION 99 + + XII. THE FUTURE OF FLIGHT 104 + + + + +ILLUSTRATIONS + + + A SCHOOL MACHINE WELL ALOFT _Frontispiece_ + + FACE PAGE + + GRAHAME-WHITE SCHOOL BIPLANE 34 + + THE CONTROLS OF A SCHOOL BIPLANE 36 + + REAR VIEW OF A SCHOOL BIPLANE 38 + + POWER-PLANT OF A SCHOOL BIPLANE 40 + + MOTOR AND OTHER GEAR--ANOTHER VIEW 42 + + PUPIL AND INSTRUCTOR READY FOR A FLIGHT 44 + + PUPIL AND INSTRUCTOR IN FLIGHT (1) 46 + + PUPIL AND INSTRUCTOR IN FLIGHT (2) 48 + + PUPIL AND INSTRUCTOR IN FLIGHT (3) 50 + + + + +Authors' Note.--The photographs to illustrate this book, as set forth +above, were taken at the Grahame-White Flying School, the London +Aerodrome, Hendon, by operators of the Topical Press Agency, 10 and 11, +Red Lion Court, Fleet Street, London, E.C. + + + + +AUTHORS' NOTE + + +This book is written for the novice--and for the novice who is +completely a novice. We have assumed, in writing it, that it will come +into the hands of men who, having determined to enter this great and +growing industry of aviation, and having decided wisely to learn to +fly as their preliminary step, feel they would like to gain +beforehand--before, that is to say, they take the plunge of selecting +and joining a flying school--all that can be imparted non-technically, +and in such a brief manual as this, not only as to the stages of +tuition and the tests to be undergone, but also in regard to such +general questions as, having once turned their thoughts towards flying, +they take a sudden and a very active interest. + +It has been our aim, bearing in mind this first and somewhat restless +interest, to cover a wide rather than a restricted field; and this +being so, and remembering also the limitations of space, we cannot +pretend--and do not for a moment wish it to be assumed that we +pretend--to cover exhaustively the various topics we discuss. Our +endeavour, in the pages at our disposal, has not been to satisfy +completely this first curiosity of the novice, but rather to stimulate +and strengthen it, and guide it, so to say, on lines which will lead +to a fuller and more detailed research. + +It is from this point of view, as a short yet comprehensive +introduction, and particularly as an aid to the beginner in his choice +of a school, and in what may be called his mental preparation for the +stages of his tuition, that we desire our book to be regarded. + + C. G.-W. + H. H. + + _April_, 1916. + + + + +CHAPTER I + +THEORIES OF TUITION + + +Only eight years ago, in 1908, it was declared impossible for one man +to teach another to fly. Those few men who had risen from the ground +in aeroplanes, notably the Wright brothers, were held to be endowed by +nature in some very peculiar way; to be men who possessed some +remarkable and hitherto unexplained sense of equilibrium. That these +men would be able to take other men--ordinary members of the human +race--and teach them in their turn to navigate the air, was a +suggestion that was ridiculed. But Wilbur Wright, after a series of +brilliant flights, began actually to instruct his first pupils; doing +so with the same care and precision, and the same success, that had +characterised all his pioneer work. And these first men who were +taught to fly on strange machines--as apart from the pioneers who had +taught themselves to fly with craft of their own construction--made +progress which confounded the sceptics. They went in easy and +leisurely fashion from stage to stage, and learned to become aviators +without difficulty, and mainly without accident. + +After this, increasing in numbers from two or three to a dozen, and +from a dozen to fifty and then a hundred, the army of airmen grew +until it could be totalled in thousands. Instead of being haphazard, +the teaching of men to fly became a business. Flying schools were +established; courses of tuition were arranged; certain pilots +specialised in the work of instruction. It was shown beyond doubt that, +instead of its being necessary for an aviator to be a species of +acrobat, any average man could learn to fly. + +Certainly a man who intends to fly should be constitutionally sound; +this point is important. When in an aeroplane, one passes very quickly +through the air, and such rapid movement--and also the effect of +varying altitudes--entail a certain physical strain. A man with a weak +heart might find himself affected adversely by flying; while one whose +lungs were not sound might find that his breathing was impeded +seriously by a swift passage through the air. More than one fatality, +doubtful as to its exact cause, has been attributed to the collapse of +a pilot who was not organically sound, or who ascended when in poor +health. And here again is an important point. No man, even a normally +healthy man, should attempt to pilot a machine in flight when he is +feeling unwell. In such cases the strain of flying, and the effect of +the swift motion through the air, may cause a temporary collapse; and +in the air, when a man is alone in a machine, any slight attack of +faintness may be sufficient to bring about a fatality. + +A fair judgment of speed, and an eye for distance, are very helpful to +the man who would learn to fly, and it is here that a man who has +motored a good deal, driving his own car, is at advantage at first +over one who has not. But otherwise, and writing generally, any man of +average quickness of movement, of average agility, can learn without +difficulty to control an aeroplane in flight. It is wrong to imagine +that exceptional men are required. An unusual facility, of course, +marks the expert pilot; but we are writing of men who would attain an +average skill. + +There has been discussion as to the age at which a man should learn to +fly, or as to the introduction of age limits generally in the piloting +of aircraft. But this introduces a difficult question; one which +depends so entirely on the individual, and regarding which we need the +data that will be provided by further experience. Some men retain from +year to year, and to a remarkable extent, the faculties that are +necessary; others lose them rapidly. The late Mr. S. F. Cody was +flying constantly, and with a very conspicuous skill, at an age when +he might have been thought unfit. But then he was a man of a rare +vitality and a great enthusiasm--a man who, though he flew so often, +declared that each of his flights was an "adventure." Taking men in +the average one may say this: the younger a man is, when he learns to +fly, the better for him. Much depends, naturally, on the sort of +flying he intends to do after he has attained proficiency. If he is +going to fly in war, or under conditions that impose a heavy strain, +then he must be a young man. But if he intends to fly for his own +pleasure, and under favourable conditions, then this factor of age +loses much of its importance, and it is only necessary that a man +should retain say, an ordinary activity, and a normal quickness of +vision and of judgment. + +Flying is not difficult. It is in a sense too easy, and this is just +where its hidden danger lies. If a pupil is carefully taught, and +flies at first only when the weather conditions are suitable, he will +find it surprisingly easy to pilot an aeroplane. That it is not +dangerous to learn to fly is proved daily. Though hundreds and +thousands of pupils have now passed through the schools, anything in +the nature of a serious accident is very rarely chronicled. This +immunity from accident is due largely to the care and experience of +instructors, and also to the fact that all pupils pass through a very +carefully graduated tuition, and that no hazardous flights are allowed; +while another and an important element of safety lies in the fact +that no flying is permitted at the schools unless weather conditions +are favourable. It is now a fair contention that, provided a man +exercises judgment, and ascends only in weather that is reasonably +suitable, there is no more danger in flying an aeroplane than in +driving a motor-car. + +Much depends of course on the dexterity of the pupil, and particularly +on his manual dexterity--on what is known, colloquially, as "hands." +Some men, even after they have been carefully taught, are apt to +remain heavy and clumsy in their control. Others, though, seem to +acquire the right touch almost by instinct; and these are the men who +have in them the making of good pilots. Horsemen refer to "hands" when +they speak of a man who rides well; and in flying, if a man is to +handle a machine skilfully, there is need for that same instinctive +delicacy of touch. + +Nowadays, when a pupil joins a well-established flying school, he +finds that everything is made easy and pleasant for him. Most men +enjoy very thoroughly the period of their tuition. A friendly regard +springs up between the pupils and their instructors, and men who have +learned to fly, and are now expert pilots, bear with them very +pleasant reminiscences of their "school" days. But there were times, +and it seems already in the dim and distant past, when learning to fly +was a strange, haphazard, and hardly pleasant experience; though it +had a sporting interest certainly, and offered such prospects of +adventure as commended it to bold spirits who were prepared for +hardship, and had a well-filled purse. The last requirement was very +necessary. In the bad old days, amusing days though they were without +doubt, no fixed charge was made to cover such breakages, or damage to +an aeroplane, as a pupil might be guilty of during his period of +instruction. These items of damage--broken propellers, planes, or +landing gear--were all entered up very carefully on special bills, and +presented from time to time to the dismayed novice; and a man who was +clumsy or impetuous found learning to fly an expensive affair. There +was a pupil who joined a school soon after Bleriot's crossing of the +Channel by air. It was a monoplane school; and the monoplane, unless a +man is careful and very patient, is not an easy machine to learn to +fly. This beginner was not patient; he was indeed more than usually +impetuous. His landings, in particular, were often abrupt. He broke +propellers, frequently, to say nothing of wings and of alighting gear. +And of all these breakages a note was made. Bills were handed to +him--long and intricate bills, with each item amounting to so many +hundreds of francs. Having a sense of humour, the pupil began to paper +his shed with these formidable bills, allowing them to hang in +festoons around the walls. What it cost him to learn to fly nobody +except himself knew. He paid away certainly, in his bills for +breakages, enough money to buy several aeroplanes. + +This was in the early days, when aviators were few and all flying +schools experimental. To-day a pupil need not concern himself, even if +he does damage a machine. Before beginning his tuition he pays his fee, +one definite sum which covers all contingencies that may arise. It +includes any and all damage that he may do to the aircraft of his +instructors; it covers also any third-party claims that may be made +against him--claims that is to say from any third person who might be +injured in an accident for which he was responsible. This inclusive +fee varies, in schools of repute, from £75 to £100. + +The modern aerodromes, or schools of flight, at which a pupil receives +his tuition, have been evolved rapidly from the humblest of +beginnings. The first flying grounds were, as a rule, nothing more +than open tracts of land, such as offered a fairly smooth +landing-place and an absence of dangerous wind-gusts. Then, as +aviation developed, pilots came together at these grounds, and sheds +were built to house their craft. And after this, quickly as a rule, an +organisation was built up. Beginning from rough shelters, erected +hastily on the brink of a stretch of open land, there grew row upon +row of neatly-built sheds, with workshops near them in which aircraft +could be constructed or repaired. And from this stage, not content +with the provision made for them by nature, those in control of the +aerodromes began to dig up trees, fill in ditches and hollows, and +smooth away rough contours of the land, so as to obtain a huge, smooth +expanse on which aircraft might alight and manoeuvre without accident. +And after this came the building up of fences and entrance gates, the +erection of executive offices and restaurants, the provision of +telephone exchanges and other facilities--the creation in fact of a +modern aerodrome. + +A pupil to-day, if he decides to learn to fly, finds he has an ample +choice in the matter of a school. He may feel indeed that there is +almost an embarrassment of facilities. But there are certain very +definite requirements, in regard to any modern flying school; and if a +novice bears these in mind, and thinks of them carefully when he is +considering what school he shall join, he cannot go far wrong. First +there is the question of the aerodrome on which, and above which, the +pupil will undergo his instruction. This should be of ample size and +of an adequately smooth surface; and it should be so situated, also, +that it is free from wind eddies and gusts, such as are set up by +hills, woods, or contours of the land, and are likely to inconvenience +a novice when he makes his first flights. The best position for an +aerodrome is in a valley, not abrupt but gently sloping. With a flying +ground so placed, shielded well by nature on every hand, it may prove +sufficiently calm for instruction even on days when there is a gusty +wind blowing across more exposed points; and such a natural advantage +is of importance for a pupil. It may mean that he is obtaining his +tuition from day to day, when other pupils, learning to fly at grounds +less favourably situated, have to remain compulsorily idle, waiting +either for the wind to drop, or to veer to some quarter from which +their aerodrome is sheltered. + +It is very necessary, of course, in the operation of a flying school, +that there should be competent instructors; also a sufficient number +of these to prevent them from being over-taxed, or having more pupils +at any one time than they can handle conveniently. And it is greatly +to the advantage of a pupil if these instructors have been chosen with +an intelligent care. A man may be a capable pilot, and yet not have +the temperament that will suit him for imparting his knowledge to +others. The instructor who, besides being a fine flyer, has the +patience and sympathy of a born teacher, is by no means easy to find. +A school which does find such men, and retains their services, offers +attractions for a pupil which--in any preliminary visit he pays to a +school before joining it--he should look for keenly. And he should +make certain, too, that the school has a staff of skilled and +experienced mechanics. + +Another indispensable feature of a school is a sufficient number of +aeroplanes, machines suited specially for the purposes of tuition, and +maintained at a high efficiency. It has been no uncommon thing--though +here again one is writing of the past--for the total resources of a +school to comprise, say, two machines. Hence a couple of smashes would +put such a school temporarily out of action, and leave the pupils with +nothing to do but kick their heels, and wait until the machines had +been repaired. It is certainly an advantage, from the pupil's point of +view, if there are well-equipped workshops in connection with the +school he joins; also if the proprietors of his school have an ample +supply of engines. With facilities for repair work immediately at hand, +and with a spare engine ready at once to put in a machine--while one +that has been giving trouble is dealt with in the engine-shop--there +should always be a full complement of craft for the work of +instruction. When workshops are in operation in connection with a +school an opportunity is usually provided, also, for a novice to gain +some knowledge as to the mechanism and working of the aero-motor: and +this of course will be useful to him. + +There has been discussion as to the type of aeroplane on which one +should learn to fly; but in this question, as in that of an age limit +for airmen, it is extremely difficult, besides being unwise, to +attempt to frame a hard-and-fast rule. The monoplane, for instance, is +not an easy machine to learn to fly: it is not easy, that is to say, +compared with certain types of biplane. Yet numbers of pupils have +been taught on monoplanes, and this without accident. There is also a +question whether, among biplanes, it is best to learn on a tractor +machine--one that is to say with the engine in front of the main +planes--or on a "pusher" type of craft; this last mentioned having its +motor behind the planes. Aeroplanes of both types are in use; and it +would be advantageous, of course, for a novice to accustom himself to +handle either. But from the point of view of those who operate large +flying schools, and have to weigh one point against another, and +eliminate so far as possible the elements of risk or difficulty, there +are very distinct advantages in a "pusher" biplane, such as is +illustrated facing page 34. The control of such a machine is simple, +and can be grasped quite readily. It provides the novice, when he is +seated in it, with a clear and unobstructed view of the ground +immediately in front of and below him; and this, in the early stages +of tuition, is an extremely important point. A craft of such a type, +also, when built specially for instruction, can be given a very strong +alighting gear, and this makes for safety when a pupil is in his first +tests, and may be guilty of an abrupt or rough descent. Again, while +such a school machine as this is engined adequately, it is at the same +time comparatively slow in flight, and has the advantage also that it +will alight at slow speeds. In the air, too, it has a large measure of +stability, and is not too rapid in its response to its controls. It +gives a pupil what is very necessary for him in his first flights, and +that is a certain latitude for error. It is safe to say, indeed, +without being dogmatic, that a "pusher" biplane of the type +illustrated, if constructed specially for school work, offers a pupil +two very clearly marked advantages. These are: (1) A craft which he +can learn to fly quickly; and (2) A machine on which he can pass +through his tuition with the least risk of accident. + +This last-mentioned point is, naturally, one of extreme importance. It +is very necessary, apart from any question of personal injury, that a +pupil should be protected during his tuition from anything in the +nature of a bad smash. A man should start to learn to fly with full +confidence; the more he has the better, provided it is tempered with +caution. And if he can go through his training without accident, and +preserve the steadily growing confidence that his proficiency will +give him, he is on the high road to success as a pilot. But if he +meets with an accident while he is learning--some sudden and quite +unexpected fall--this may have a serious and a permanent influence on +his nerves, even if he escapes without injury. It happened frequently +in the early days that a promising pupil, a man who showed both +confidence and skill, had his nerve ruined, and all his "dash" taken +from him, by some unlucky accident while he was learning to fly. + +There are certain minor points a pupil should consider when he selects +a flying school--points which have reference mainly to his own comfort +and convenience. He will prefer, for instance, other things being +equal, a school that is near some large town or city, and not buried +away inaccessibly. It is a convenience also, and one that facilitates +instruction, if a pupil can obtain, quite near the aerodrome, rooms +where he can live temporarily while undergoing his instruction, and so +be able to reach the flying ground in a minute or so, whenever and at +any time the weather conditions are favourable. It is a convenience +again if, either on the aerodrome itself or immediately adjacent, +there is a canteen or restaurant where meals and other refreshments +can be obtained. Dressing-rooms and reading rooms, when provided by +the proprietors of a school, add to the comfort of the novice while he +is in attendance on the aerodrome. In winter, particularly, such +facilities are required. + +At a modern school, if it is well conducted, all heroics or +exceptional feats are discouraged. Pupils who want to do wild things +must be sternly repressed, even if only for the common good. The aim +is to train a certain number of pupils, not hastening over the tuition +but giving each man his full and complete course, and to do this with +a minimum of risk. In the early days of flying there were remarkable +exploits at the schools, and some very dangerous ones also. But +nowadays the reckless, happy-go-lucky spirit has gone. Tuition is +based on experience. Each pupil must submit to the routine, and listen +attentively to the instructions given him. There are no short +cuts--not at any rate with safety--in the art of learning to fly. + +The question is asked, often, how long it should take a man to learn +to fly. It is almost impossible, though, to specify any fixed time. A +very great deal must depend on the weather. A pupil who joins a school +in the summer is more likely, naturally, to complete his tuition +quickly than one who begins in the winter. In periods when there are +high and gusty winds it may be necessary to suspend school work for +several days. But at such times the pupil need not be completely idle. +Lectures on aviation are organised sometimes by the schools; while a +pupil should have opportunities also--as has been mentioned before--of +going into the engine-shop and studying the repair and overhaul of +motors and machines. + +It is on record that a pupil has learned to fly in a day, even in a +few hours; but here the circumstances, and the men, were exceptional. +Such an unusual facility represents one extreme; while as another, it +may happen that a man, owing to a combination of adverse circumstances, +is six months before he gains his certificate of proficiency. It may +be taken, as a rule, that a pupil should set aside say a couple of +months in order to undergo thoroughly, and without any haste, his full +period of tuition. School records prove, as a rule, that the pilots +who learn to fly abnormally quickly are apt to experience an abnormal +number of accidents at a later date, due principally to a lack of real +sound knowledge, which they should have gained during the period of +their tuition. One must learn to walk before one can run, and this +takes time; and the remark applies aptly to aviation. It is very +necessary for the pupil to spend as much time as he can on the +aerodrome. Much is to be learned, by an observant man, apart from the +actual time during which he is engaged with his instructor. If he +watches men who are highly skilled, he may gain many useful hints, +though he himself is on the ground. + + + + +CHAPTER II + +TEMPERAMENT AND THE AIRMAN + + +As aviation passed from its earliest infancy, and a number of men +began to fly, the temperament of the individual pupil, and the effect +of this temperament on his progress as an aviator, began to reveal +itself. And temperament does play a large part in flying; as it does +in any sport in which a man is given control of a highly sensitive +apparatus, errors of judgment in the handling of which may lead to +disaster. It is not, as a rule, until he has passed through his early +stages of tuition, and has begun to handle an aeroplane alone, and is +beyond the direct control of his instructor, that the temperament of a +pupil really plays its part. Up to this point he is one among many, +conforming to certain rules, and obliged to mould himself to the +routine of the school. But when he begins to fly by himself, and +particularly when he has passed his tests for proficiency, and is +embarking, say, on cross-country flights, then this question of +temperament begins really to affect his flying. + +All men who learn to fly--numbering as they do thousands +nowadays--cannot be endowed specially by nature for their task. There +is indeed a wide latitude for temperamental differences--always +provided that nothing more is required of a man than a certain average +of skill. But if a man is to become a first-class pilot, one +distinctly above the average, then the question of his temperament, as +it influences his flying, is certainly important. + +A rough classification of the pupils at a school--just a preliminary +sorting of types--shows as a rule the existence of two clearly-marked +temperaments. One is that of the man who is deliberate, whose +temperament guards him from doing anything perfunctorily or in a hurry; +the other is that of a man--a type frequently encountered +nowadays--who while being quick, keen, and intelligent, mars these +good qualities by a temperamental impatience which he finds it +difficult or impossible to control, and which makes him irritable and +restless at any suggestion of delay. + +Now the first of these men need not to be wholly commended, nor the +second entirely condemned. A capacity for deliberation, both in study +and in practice, is very useful when learning to fly. It will protect +a man from many errors, and render his progress sure, though it may be +slow. But something more than deliberation is required in the aviator +of distinction. There must be the vital spark of enterprise, the +temperamental quality which is known as "dash," the quick action of +the mind, in difficulty or peril, that will carry certain men to +safety through many dangers. This imaginative power is possessed as a +rule, though in ways that differ considerably, by the second type of +pupil we have described--the restless, impatient man. But in his case +this quality is, more often than not, marred by his instability; by +the lack of that judgment which is so necessary to counterbalance +imagination, but which is, unfortunately, not so often found. + +A man who decides to become an aviator, and particularly if he intends +to fly professionally, should ask himself quite seriously if his +temperament is likely to aid him, or whether perhaps it may not be a +danger. This point is certainly one of importance, though it cannot be +stated directly or decided in so many words. There is a vital question +at least that the novice should ask himself; and this is whether his +temperament, whatever its general tendency may be, includes a +sufficient leavening of caution. In the navigation of the air caution +is indispensable. A pupil must remind himself constantly that, though +it appears easy--and is indeed easy--to learn to handle a machine in +flight, no liberties must under any circumstances be taken with the +air. Every instant a man is flying he needs to remember the value of +caution. In the air one cannot afford to make mistakes. + +Naturally there is an ideal temperament for flying; but it is one +which, owing to the combination of qualities that are required, is +very rarely met with. The man who possesses it is gifted with courage, +ambition, "dash," and with a readiness in an emergency that amounts to +intuition. And yet these positive qualities are, in the ideal +temperament, allied to, and tempered by, a strong vein of prudence and +of caution. The pilot has absolute system, method, and thoroughness in +everything he does. The average pupil cannot hope to be so luckily +endowed. But he can study his personality, and seek to repress traits +that may seem harmful. + +There is need in flying for a sound judgment, one that will enable a +man to come to a decision quickly and yet accurately. Things happen +rapidly in the air. It is one of the grim aspects of flying that, just +at a moment when everything appears secure, a sudden disaster may +threaten. So it is of vast importance to a pilot, if he has to fly +regularly, that he should have an instinctive and dependable judgment; +a capacity for deciding quickly and without panic; a capacity, when +several ways present themselves of extricating himself from some +quandary, of being able to choose the right one, and of not having to +think long before doing so. This implies a combination really of +judgment and resource. The man of confidence, the man of resource, is +well endowed for flying. But he must not be over-confident. The +over-confident man is a menace to himself and to others. It is not a +proper spirit at all in which to approach aviation. We do not know +enough about the navigation of the air to be in the least +over-confident. The spirit, rather, should be one of humility--a +determination to proceed warily, and to make very certain of what +limited knowledge we do possess. + +Two of the worst traits in an aviator are impatience and irritability. +A man who has these temperamental drawbacks in a form which is +strongly marked, and who cannot control them, should not think of +becoming an aviator. The man who is impatient and irritable finds +himself out of harmony with the whole theory of aerial navigation. +There is a long list of "don'ts" in flying; in the handling of one's +machine, in the weather one flies in, in all the feats that one should +attempt and leave alone. A number of details must be memorised, and +must never be forgotten or overlooked, trivial though some of them may +seem. The frame of mind of the man who flies must be alert, yet quiet +and reposeful; he must be clear-headed, not hot-headed. The man who is +in a hurry, who ignores details when he sets out on a flight, is the +man who runs risks and is bound sooner or later to pay the penalty. +The perils of recklessness in flying are very great. The man who +"takes chances," who thinks he can do something when, as a matter of +fact, he has neither sufficient knowledge or experience, runs a very +grave and constant risk. It is the thoughtful, considering frame of +mind, particularly in a pupil, which is the safe one; but this must +not be taken to imply a type of man who lacks power of action. +Initiative, and a quick capacity for action, are most necessary in +aviation. New problems are being faced continually, and the brain +succeeds which is the most active and original. + + + + +CHAPTER III + +FIRST EXPERIENCES WITH AN AEROPLANE + +(AS DESCRIBED BY MR. GRAHAME-WHITE) + + +After a period of ballooning, which offers experience for an aviator +in the judging of heights and distances, and in growing accustomed to +the sensation of being in the air, I devoted a good deal of time and +attention--more indeed at the time, and in view of my other +responsibilities, than I could reasonably spare--to a study of the +theory of aeroplane construction, and to the making of models. This +was prior to 1909; Bleriot had not yet flown the Channel in his +monoplane. But when he did I put models aside, and determined to buy +an aeroplane and learn to fly. + +At the end of August, 1909, so that I might inspect the various +aeroplanes that were then available, and they were few enough, I went +to Rheims, in France, and attended the first flying meeting the world +had seen. At the aerodrome I met and talked with the great pioneers: +with Bleriot, fresh from his cross-Channel triumph; with Levavasseur, +the designer of the beautiful but ill-fated Antoinette monoplane, +which had, through engine failure, let Hubert Latham twice into the +Channel during his attempts to make the crossing; with Henry Farman +who, fitting one of the first Gnome motors to a biplane of his own +construction, flew for more than three hours at Rheims, and created a +world's record; and also with M. Voisin, whose biplane was then being +flown by a number of pilots. + +Finally, after careful consideration, I made a contract with M. +Bleriot to purchase from him, at the end of the meeting, a monoplane +of a type that appeared first at Rheims, and of which there was not +another model then in existence. This machine differed considerably +from the one with which M. Bleriot had flown the Channel. His +cross-Channel monoplane was a single-seated craft fitted with an +air-cooled motor of about 25 h.p. The machine I agreed to buy at +Rheims, and which was known as Bleriot No. XII., would carry two +people, pilot and passenger, while it had an 8-cylinder water-cooled +motor developing 60 h.p.--an exceptional power in those days. The +position of the occupants, as they sat in the machine, differed from +the arrangement in the cross-Channel Bleriot. In the latter the pilot +sat in a hull placed between the planes, and with his head and +shoulders above them. But in this new and larger machine the pilot and +passenger sat in seats which were placed below the planes. + +The craft was, as a matter of fact, an experiment, being built almost +purely for speed; hence its powerful motor. M. Bleriot's idea, in +constructing it, was to have a machine with which he might win the +Gordon-Bennett international speed race at Rheims. But this hope he +did not realise; nor did I obtain delivery of the craft I desired. +Bleriot, flying alone in this big monoplane, started in a speed flight +for the Gordon-Bennett; but he was only a quarter of the way round the +course, on his second lap, when the machine was seen to break suddenly +into flames and crash to the ground from a height of 100 feet. It was +wrecked entirely, but Bleriot was fortunate enough to escape with +nothing worse than burns about the face and hands, and a general +shock. The cause of the accident was that an indiarubber tube, fixed +temporarily to carry petrol from the tank to the carburettor, had been +eaten through and had permitted petrol to leak out, and to ignite, on +the hot exhaust pipes of the motor. + +The destruction of this monoplane was, to me, a great disappointment. +No other machine of the type was in existence, and I learned that it +would take three months to build one. M. Bleriot promised, however, to +put a machine in hand at once; and, as a special concession, I +obtained permission to go daily to the Bleriot factory and superintend +the construction of my own machine. This I did for a full period of +three months, working daily from 6 a.m. to 6 p.m., and gaining some +valuable knowledge as to aeroplane construction. + +On November 6, 1909, after delays which had tried my patience sorely, +I obtained delivery of the new machine--a replica of the craft that +had been destroyed at Rheims. It was too late that day to begin any +trials, so I and a friend who was with me arranged with M. Bleriot's +mechanics that we would be at Issy-les-Moulineaux early next morning, +and there put the craft through its preliminary tests. I can remember +we went to bed early, but sleep was impossible; we were both too +excited at the prospect that lay before us. So presently we got +up--this was at 2 a.m.--and drove out to the flying ground. + +It was pitch dark when we arrived at the aerodrome, but the morning +promised to be favourable. Foggy it was; but there was no wind, and +the fog seemed likely to clear. We roused the caretaker, and, after +lengthy explanations and considerable monetary persuasion, induced him +to open the shed and allow us to prepare the machine for its first +flight. Then we waited for the mechanics and the first rays of dawn. +We felt a desire to get the big engine started up, but had been warned +of the risk of doing this without the help of mechanics. Time passed +and still the mechanics did not come. At last, there being now +sufficient light, we tied the aeroplane with ropes to a fence, so as +to prevent its leaping forward, and then started up the motor by +ourselves. I swung the nine-foot propeller--the only way of starting +the engine; and at the first quarter-turn the motor began to fire. +Then, as is quite usual, there was an incident that had been +unforeseen in our excitement. We had forgotten to take up the slack of +the rope; and the consequence was that, as the engine started, the +machine gave a bound forward that was sufficient to knock me down. But +I was unhurt, and picked myself up quickly. Then I hurried round to +the driving seat and took my place at the control levers, motioning to +my friend, who was looking after the ropes, to cast these loose and +jump into the seat beside me. This was easier said than done. Directly +he released the ropes the machine began to move across the ground, +gathering speed very quickly; but he managed somehow, before the +machine was running too fast, to scramble into the seat beside me. + +Off we started across the aerodrome, the monoplane gaining a speed of +40 or 50 miles an hour. I did not attempt to rise from the ground, +feeling it very necessary at first to grow familiar with the controls. +So we sped along the ground for a distance of about a mile. Then, on +nearing the far end, I slowed down the motor and our speed dropped to +about 20 miles an hour. I wanted to turn the machine round on the +ground and run back again towards our starting point. But such a +manoeuvre, particularly for the novice, is far from easy. As the speed +of the machine is reduced, the pressure of air on the rudder is +lessened and so it loses its efficiency--in the same way that a ship +is difficult to steer when she begins to lose way. We were faced also +by another and a graver difficulty. Confused by the fog, which still +hung over the aerodrome, I had misjudged our position. We found we +were much nearer the end of the ground than I had imagined. In front +of us there loomed suddenly a boundary wall, against which it seemed +probable we should dash ourselves. There were no brakes on the machine; +no way of checking it from the driving seat. Our position seemed +critical. + +It was now that I shouted to my friend, telling him to jump out of the +machine as best he could, and catch hold of the wooden framework +behind the planes, allowing the machine to drag him along the ground, +and so using the weight of his body as a brake. This, with great +dexterity, he managed to do, and we came to a standstill not more than +a foot or so from the wall. This proved a chastening experience; we +pictured our aeroplane dashed against the wall, and reduced to a mass +of wreckage. Very cautiously we lifted round the tail of the machine. +It was impossible to switch off the motor and have a rest, because, if +we had stopped it, we should not have been able to start it again +without our gear, which was away on the other side of the ground. + +Now, having got the machine into position for a return trip across the +aerodrome, I accelerated the engine, and we started off back. For +about twenty minutes, without further incident, we ran to and fro; and +now I felt that I had the machine well in control--on the ground at +any rate. And so the next thing was to rise from the ground into the +air. I told my friend my intention, calling to him above the noise of +the motor; and I admired him for the calm way in which he received my +news. I should not have been surprised if he had demanded that I +should slow up the machine and let him scramble out. In those days it +was thought dangerous to go up even with a skilled and more or less +experienced pilot. How much greater, therefore, must have seemed the +risk of making a trial flight with me--a complete novice in the +control of a machine. But my friend nodded and sat still in his seat. +So I accelerated the motor and raised very slightly our rear elevating +plane. And then we felt we were off the ground! There was no longer +any sensation of our contact with the earth--no jolting, no vibration. +In a moment or so, it seemed, the monoplane was passing through the +air at a height of about 30 feet. This, to our inexperienced eyes, +appeared a very great altitude; and I made up my mind at once to +descend. This manoeuvre, that of making contact with the ground after +a flight, I had been told was the most difficult of all. It is not +surprising that this should be so. Our speed through the air was, at +the moment, about 50 miles an hour; and to bring a machine to the +ground when it is moving so fast, without a violent shock or jar, is a +manoeuvre needing considerable judgment. But, remembering that the +main thing was to handle the control lever gently, I managed to get +back again to the aerodrome without accident; and after this we turned +the machine round again and made another flight. + +The fog had cleared by now, and we were surprised to see a number of +people running across the ground towards us. First there came the +tardy mechanics; and with them were a number of reporters and +photographers representing the Paris newspapers. These latter +had--though I only found this out afterwards--been brought by the +mechanics in the expectation of being able to record, with their +notebooks and cameras, some catastrophe in which we were expected to +play the leading parts. Knowing the powerful type of monoplane I had +acquired, a machine not suited for a novice, the mechanics had felt +sure some disaster would overtake me. But, as it happened, their +anticipations were not fulfilled. The journalists and photographers +did not, however, have a fruitless journey. Though there was nothing +gruesome to chronicle, they found ample material, when they learned of +them, in the early morning adventures of myself and my friend with +this 60 h.p. monoplane. Next day, in fact, our exploits were given +prominence in the newspapers, and I received a number of +congratulatory telegrams; not forgetting one of a slightly different +character which came from M. Bleriot. He was flying at the time in +Vienna, and he warned me of the dangers of such boldness as I had +displayed--having regard to the speed and power of my machine--and +pleaded with me for a greater caution. + + + + +CHAPTER IV + +THE CONTROLLING OF LATEST-TYPE CRAFT + + +People are puzzled, often, when they try to explain to themselves how +it is that an aeroplane, which is so much heavier than air, manages to +leave the ground and to soar in flight. When balloons or airships +ascend, it is realised of course that the gas, imprisoned within their +envelopes, draws them upward. But the aeroplane--weighing with pilot, +passenger, and fuel perhaps several thousand pounds--rises without the +aid of a gas-bag and with nothing to sustain it but narrow planes; and +these do not beat, like the wings of a bird, but are fixed rigidly on +either side of its body. How is the weight of machine and man borne +through this element we cannot see, and which appears intangible? + +The secret is speed--the sheer pace at which an aeroplane passes +through the air. As a craft stands on the ground, its planes are +inoperative. Power lies dormant in the air, but only when it is in +motion, or when some object or apparatus is propelled through it at +high speed. Have you stood on a height, in a gale, and felt an air +wave strike powerfully against your body? The blow is invisible; but +you yield a step, gasping; and, had you wings at such a moment, you +would not doubt the power of the wind to sweep you upward. This is the +force the aeroplane utilises. + +If, on a calm day, you accelerate your motor-car to 60 miles an hour, +the air sweeps past you in a powerful stream; just as it would if you +were standing still, and there was a gale of wind. Instead of the wind +possessing the speed, in this instance, it is you who provide it. The +motor of an aeroplane, driving the propeller of the machine, turns +this at 1000 or more revolutions a minute, and causes its curved +blades to screw forward through the air as they turn, like those of a +ship's propeller through water--or a gimlet into wood. The propeller, +as it bores its way into the air, draws or pushes the aeroplane across +the ground; and the speed grows rapidly until the air, sweeping with +an increasing pressure beneath the planes, becomes sufficient to bear +the craft in flight. + +But the wing of an aeroplane would not sustain its load unless +designed specially to act upon the air. A man, if he is unlucky enough +to fall from a tall building, passes through the air at a high speed. +His body obtains no support from the air; so he crashes to the ground. +This is because his body is heavy, and presents only a small surface +to the air. To secure a lifting influence from the air, it must be +struck swiftly with a large, light surface. + +Men go to Nature when building wings for aeroplanes, and imitate the +birds. The wing of a bird arches upward from front to back, most of +the curve occurring near the forward edge; and this shape, when +applied to an aeroplane wing, is known as its camber. With an +aeroplane wing, if its curve is adjusted precisely, the air not only +thrusts up from below as a machine passes through it, but has a +lifting influence also from above; an effect that is secured by the +downward slope of the plane towards its rear edge. The air, sweeping +above the raised front section of the plane, is deflected upward, and +with such force that it cannot descend again immediately and follow +the downward curve of the surface. So, between this swiftly-moving air +stream, and the slope to the rear of the plane, a partial vacuum is +formed, and this sucks powerfully upward. With a single wing, +therefore, it is possible to gain a double lifting influence--one +above and one below. + +The building of aeroplanes, once their wing lift is known, becomes a +matter of precision. According to the speed at which they fly, and the +size and curve of their planes, machines will sustain varying loads. +In some machines, as a general illustration--craft which fly fast--the +planes may bear a load equal to 10 lbs. per square foot. In others the +loading may be less than 3 lbs. per square foot. + +Apart from raising a craft into the air, by the lifting power of its +wings, there is the problem of controlling it when in flight. The air +is treacherous, quickly moving. Gusts of abnormal strength, sweeping +up as they do invisibly, may threaten to overturn a machine and dash +it to earth. Eddies are formed between layers of warm and cold air. +There are, as a craft flies, constant increases or lessenings of +pressure in the air-stream that is sweeping under and over its wings; +and all these fluctuations influence its equilibrium. Unless, +therefore, a machine is automatically stable--and with craft of this +type we shall deal later--the pilot must be ready, by a movement of +the surfaces which govern the flight of the machine, to counteract +quickly, with a suitable action of his levers, the overturning +influence that may be exercised by a gust of wind. Here lies the art +of flying. A man is given a machine which, by the action of its motor +and propeller, will raise itself into the air; and it is his task, +when the craft is once aloft, to manipulate it accurately and without +accident, and to bring it to earth safely after he has made a flight. + +In the description of controlling movements which follows we shall, +for the sake of convenience, and for the sake also of brevity, deal +only with the type of "pusher" biplane to which reference has been +made already, and on which large numbers of pupils have been, and are +being, trained to fly. This casts no aspersion whatever on tractor +machines or on monoplanes. On either, if he has an inclination, a +pupil can undergo his instruction, and do so usually with success. But +explanation is rendered more easy, and there is less likelihood of a +dispersal of interest, if one machine is selected for illustration; +and our reasons for the choice of a "pusher" biplane, regarded from +the point of view of tuition, have been explained already. + +First, therefore, one may deal with raising the craft into the air, +and causing it to descend. In the photograph of the school machine +shown facing this page, it will be seen that the control surfaces are +indicated by lettering. In front of the biplane, on outriggers, is the +plane "A." This surface (aided in its action by a rear plane) governs +the rise or descent of the machine. When the motor is started, and the +propeller drives the biplane across the ground on its chassis B, the +machine would, if this lifting plane was held in a negative position, +continue to move forward on the earth and would make no attempt to +rise. In order to leave the ground, when the speed of the machine is +sufficient for its main-planes (C.C.) to become operative, and bear +its weight through the air, the pilot draws back slightly towards him +a lever, which is placed just to the right of his driving-seat and is +held with the right hand. A photograph which shows this lever, and the +other controls, appears facing page 36, the lever to which we are +referring being indicated by the figure 1. The effect on the aircraft +when the pilot draws back this lever--the motion being slight and made +gently--is to tilt up the elevating plane A, and this in its turn, +owing to the pressure of air upon it, raises the front of the machine. +The result of this alteration in the angle of the craft is that it +presents its main-planes at a steeper angle to the air. Their lifting +influence is increased, with the result that--at an angle governed by +the pilot with his movement of the elevating plane--they bear the +machine from the ground into the air. + + [Illustration: GRAHAME-WHITE SCHOOL BIPLANE (TYPE XV.) _Photo by + Topical Press Agency._ + + A.--The front elevating plane, which acts in conjunction with the + rear-plane marked A1; B.--The landing-chassis; C.C.--The main-planes; + D.D.--The ailerons; E.E.--The rudders; F.--Engine (a 60-h.p. Le Rhone) + and propeller.] + +A reverse movement of the elevator reduces the lift of the main-planes; +hence, when an aviator wishes to descend, he tilts down his elevator, +bringing his machine at such an angle that it is inclined towards the +ground. Then, switching off his engine so as to moderate the speed of +his descent, and by such manipulations as may be necessary of his +elevator, he pilots his craft to earth in a vol-plané, during which +gravity takes the place of his motor, and he is able--by steadying his +machine and bringing it into a horizontal position just at the right +moment--to make a gentle contact with the ground. + +A pilot must be able to do more than cause his aeroplane to ascend and +to alight: he must have means to check the lateral movements which, +under the influence of wind gusts, may develop while the biplane is in +flight. At the rear extremities of the main-planes as illustrated in +the photograph facing page 34--and marked D.D.--are flaps, or ailerons, +which are hinged so that they may be either raised or lowered. These +ailerons are operated, through the medium of wires, by the same +hand-lever which governs the movement of the elevator. This lever is +mounted on a universal joint, and can be moved from side to side as +well as to and fro. Should the biplane tilt, while flying, say towards +the left, the pilot moves his hand-lever sideways towards the right. +This is a natural movement, the instinct being to move the lever away +from the direction in which the machine is heeling. This movement of +the lever has the effect of drawing down the ailerons on the left-hand +side of the machine; on the side, that is to say, which is tilted down; +and the depression of these auxiliary surfaces, increasing suddenly +as they do the lifting influence of the main-planes to which they are +attached, tend to thrust up the down-tilted wings, and so restore the +equilibrium of the machine. + +In the operation of his ailerons, combined with the use of his +elevator, a pilot is given means to balance his craft while in flight. +One should not gain the impression that an aeroplane is threatening +ceaselessly to heel this way and that. This is not so. The machine has +a large measure of stability, apart from any manipulation of its +controls, and needs balancing only when some disturbance of the +atmosphere affects its equilibrium. Under favourable conditions, such +as a pupil will experience in his first flights, nothing more is +necessary with the hand-lever than a very slight but fairly constant +action; a similar motion, in a way, as is made by the driver of a +motor-car when he maintains, by his "feel" on the wheel, his sense of +control over the machine. In the controlling actions of an +aeroplane--and this is a fact which tends sometimes to the confusion +of the novice--nothing more is required, normally, than the most +delicate of movements. The difference say between ascending, and +skimming along the ground, is represented by a movement of the +hand-lever of only a few inches. Delicate, sure, quick, and firm; such +is the touch needed with an aeroplane. + +With the one hand-lever, as we have shown, it is possible for a pilot +to control the rise and descent, and also the lateral movements of his +machine; and there remains only the steering to be effected--the +movement from side to side, from right to left, or vice-versa. At the +rear of the biplane, as shown facing page 34, will be seen two +vertical planes, E.E. These, being hinged, will swing from side to +side; and they exercise a sufficient influence, when working in the +strong current of air that blows upon them when a machine is in flight, +to steer it accurately in any direction. The pilot, to operate this +rudder, rests his feet on a conveniently-placed bar, which is mounted +on a central swivel, and allows the bar to be swung by a pressure of +either foot. When the pilot needs to make a turn say to the left, as +he is flying, he presses his left foot forward. This swings the bar in +same direction; and, by a simple connection of wires running to the +tail of the machine, the rudders are made to swing over to the left +also, and the machine turns in response to them. A similar movement to +the right produces a right-hand turn. This foot rudder bar, being +numbered 2, is shown in the picture facing page 36. + + [Illustration: THE CONTROLS OF A SCHOOL BIPLANE. _Photo by Topical + Press Agency._ + + 1.--The upright lever which, working on a universal joint, operates + the elevator and ailerons; 2.--The bar, actuated by the pilot's feet, + which operates the rudders of the machine; 3.--The pilot's seat; + 4.--The passenger's seat.] + +Apart from the movements we have described, which are extremely simple, +a pilot needs also to maintain control over his motor. Near his left +hand, fixed to the framework just at one side of his seat, are levers +which govern the speed of the engine, also the petrol supply; while +close to them is the switch by which the ignition can be switched on +or off. + +A final word is necessary here, perhaps, and it is this: the glamour +and mystery which, in the early days, clung to the handling of an +aeroplane has now been dispelled almost entirely. A well-constructed +machine, flying under favourable conditions, requires surprisingly +little control; what it does, one may almost say, is to fly itself. + + + + +CHAPTER V + +THE STAGES OF TUITION + + +Flying schools--those which really can be described as such--have been +in operation now for seven years; and during this time, with thousands +of pupils going through their period of tuition, many very valuable +lessons have naturally been learned. To-day, at a well-managed school, +each stage in a pupil's instruction, mapped out as a result of +experience, is arranged methodically and with care; the idea being +that the novice should pass from one stage to another by a +smoothly-graduated scale, facilitating his progress and reducing +elements of risk. + +It is in the early morning, and again in the evening, that the flying +schools are most busy as a rule. At such times--morning and +evening--the wind blows with least violence; and it is very necessary +that a pupil, when he is handling craft for the first time, should +have weather conditions which are favourable. Summer and winter, as +soon as it is light, and granted conditions appear suitable, mechanics +wheel the aeroplanes from the sheds, and the instructors begin their +work. Should there be any doubt as to the weather, or as to the +existence, say, of difficult air currents, an instructor will fly +first, circling above the aerodrome at various heights, and satisfying +himself, by the behaviour of his machine, whether it will be safe for +the novices to ascend. If he pronounces "all well," school work begins +in earnest, and continues--provided the weather remains +favourable--until all the pupils have had a spell of instruction. +Towards the middle of the day, and in the afternoon, it is quite +likely the wind may blow and school work be suspended. But in the +evening again, when there is usually a lull, a second period of +instruction will be carried out. In well-equipped schools, to meet +such conditions as these, it is customary to provide two complete and +distinct staffs, both of instructors and mechanics. One staff takes +the morning spell of work, while the second is held in readiness for +the evening. This ensures that, both morning and evening, there shall +be available for instruction a fresh, alert, and unfatigued staff. + + [Illustration: REAR VIEW OF A SCHOOL BIPLANE. _Photo by Topical Press + Agency._ + + This photograph shows clearly the hinged ailerons fixed at the + extremities of the plane-ends for maintaining lateral stability: also + the rear elevating plane (which acts in conjunction with the + fore-plane mounted on outriggers at the front of the machine) and the + twin rudders.] + +A pupil will find that, as the first stage of his tuition, he is given +the task of familiarising himself with the controls of a school +biplane. The system we have described already, and a pupil should find +no difficulty in mastering it. Placing himself in the driving-seat of +the machine, while it is at rest on the ground, the pupil takes the +upright lever in his right hand, and rests his feet on the rudder-bar, +making the various movements of control, again and again, until he +finds he is growing accustomed to them, and can place his levers in a +position for an ascent or descent, or for a turn, without having to +wait while he thinks what it is necessary to do. + +In the next stage, a more interesting one, the pupil, occupying a seat +immediately behind his instructor, is taken for a series of passenger +flights. These accustom him to the sensation of being in the air, and +also train his eye in judging heights and distances. A minor point the +pupil should bear in mind, though his instructor will be quick to +remind him, is not to wear any cap or scarf that may blow free in the +rush of wind and become entangled with the propeller. Scarves need to +be tightly wrapped; while it is usual, with a cap, to turn it with the +peak to the back, and so prevent it from having a tendency to lift +from the head. Many pupils provide themselves with a helmet designed +to protect the head in case of an accident, and these are held firmly +in position. Should a passenger's cap blow off, and come in contact +with the propeller, it may be the cause of an accident. How +carelessness may lead to trouble, in this regard, will be gathered +from the following incident. + +Some slight repairs had been made one day to the lower plane of a +machine while it stood out on the aerodrome, and one of the workmen, +through inadvertence, had left lying on the plane, near its centre, a +roll of tape. The pilot decided to make another flight, and the motor +was started and the machine rose. Suddenly the aviator was startled by +a sound like a loud report, which seemed to come from the rear of his +machine. The craft trembled for a moment, and he feared a structural +collapse. Nothing worse happened, however, and he was able to pilot +his machine in safety to the aerodrome. What had happened, it was then +ascertained, was that the roll of tape, sucked back in the rush of +wind, had been drawn into the revolving propeller and had broken a +piece out of it. Luckily the impact had not been heavy enough to +damage the propeller seriously, or cause it to fly to pieces. + +A problem with which the pupil will be faced in his first flights, +particularly if he is learning in winter, will be that of keeping +himself warm. The speed at which an aeroplane travels, combined with +the fact that it is at an elevation above the ground, renders the +"bite" of the cold air all the more keen, and makes it difficult very +frequently, even when one is warmly clad, to maintain a sufficient +warmth in the body, and particularly in the hands and feet. The +question of cold hands is, from a pilot's point of view, often a +serious one. There is a case on record of an aviator who, his hands +being so numbed that his fingers refused to move, found he could not +switch off his motor when the time came to descend; and so he had to +fly round above the aerodrome, several times, while he worked his numb +fingers to and fro, and beat some life into them against his body. At +last, having restored their circulation to some extent, he was able to +operate the switch and make a landing. While on active service in +winter, after flying several hours at high altitudes, and in bitter +cold, the occupants of a machine have descended in such a numbed +condition, despite their heavy garments, that it has been found +necessary to lift them out of their seats. But a pupil need not face +such hardships as these. He will be flying for short periods only, and +at low altitudes; so if he makes a few wise purchases from among the +selection of flying gear now available, and particularly if he equips +himself with some good gloves, he should be able to keep sufficiently +warm in the air, even if he is going through his training in winter. + + [Illustration: POWER-PLANT OF A SCHOOL BIPLANE. _Photo by Topical + Press Agency._ + + Showing the 60-h.p. Le Rhone Motor, with its mounting on the machine, + and the method of attaching the propeller. The fuel tank is also + visible; and, forward at the front of the machine, the seats of + passenger and pilot.] + +A pupil will feel curious, naturally, as to his sensations in the +first flights he makes with his instructor. Of the exact moment when +the machine leaves ground he will be unaware probably, save for the +cessation of any jolting or vibration, such as may be caused by the +contact of the running wheels with the surface of the aerodrome. His +first clearly-marked sensation, when in actual flight, will occur most +likely when the pilot rises a little sharply, so as to gain altitude. +Then the pupil will have a feeling one might liken to the ascent, in a +motor-car, of a steep and suddenly-encountered hill; though in this +case the hill is invisible, and there is no earth contact to be felt. +This sensation of climbing is exhilarating; and when the pilot makes a +reverse movement, descending towards the ground, the feeling is +pleasant enough also, provided the dive is not too steep. + +The pupil's chief sensation, probably, will be that of the rush of +wind which beats against him. Some people feel this much more than +others. There is sometimes a feeling--it is no more than temporary--of +inconvenience and of shock. The pupil feels as though his breathing +was being interfered with seriously; as though the pressure was so +great he could not expel air from his lungs. But this sensation, even +when it is experienced, is short-lived. In a second flight, quite +often, the novice finds that this oppression diminishes very +perceptibly; and soon he does not notice it at all. Motoring +experience proves useful here, particularly high-speed driving on a +track. + +Some confusion is felt by the pupil, as a rule, and this is only +natural, in regard to the pace at which the aeroplane travels through +the air, and at the way in which the ground seems to be tearing away +below. Occasionally, in a first flight, this impression of speed, and +of height, produce in the pupil a sensation of physical discomfort; +but it is one again which, in the majority of cases, is quickly +overcome. A few balloon trips are a useful preliminary to flights in +an aeroplane. They familiarise one in a pleasant way with the +sensation of height, and accustom the eye also to the look of the +ground, as it passes away below. + +While he is making his first flights with the instructor, and apart +from analysing his sensations, the pupil will observe the lever +movements made by the pilot in controlling the machine; and the fact +that will impress itself upon him, as he watches these movements, is +that they are not made roughly or spasmodically, but are almost +invariably gentle. During these flights as a passenger, and after he +has accustomed himself to the novelty of being in the air, the pupil +will be allowed by the instructor to lean forward and place his hand +on the control lever; and in this way, by actually following and +feeling for himself the control actions the pilot makes, he will gain +an idea of just the extent to which the lever must be moved, to gain +any specific result in the flight of the machine. + + [Illustration: MOTOR AND OTHER GEAR--ANOTHER VIEW. _Photo by Topical + Press Agency._ + + This shows the constructional unit that is formed, on a suitably + strong framework of wood, by the engine, propeller, and fuel tank, and + also by the seats for the pilot and passenger.] + +The next stage of tuition is that in which a pupil is allowed to +handle a biplane alone, not in flight though but only in "rolling" +practice on the ground--driving the machine to and fro across the +aerodrome. The motor is adjusted so that, while it gives sufficient +power to drive the machine on the ground and render the control +surfaces effective, it will not permit the craft to rise into the air. +This stage, a very necessary one, teaches the pupil, from his own +unaided experience just what movements he must make with his levers to +influence the control surface of the machine, and to maintain it, say, +on a straight path while it runs across the ground. One of the +discoveries he will make is that the biplane, if left to itself, shows +a tendency to swerve a little to the left--the way the propeller is +turning; but this inclination may be corrected, easily, by a movement +of the rudder. + +The pupil learns also to accustom himself, while in this stage, to the +engine controls which have been explained already; and he is not +likely to be guilty of the error of one excitable novice who, while +driving his machine back on the ground towards the sheds at an +aerodrome, after his first experience in "rolling" became so confused, +as he saw the buildings looming before him, that he lost his head +completely and forgot to switch off his motor. The result was that the +aeroplane, unchecked in its course, crashed into some railings in +front of the sheds and stood on its head. Not much damage was done +however, and the novice was unhurt. He seemed as surprised as anyone +at what had happened, and confessed that, for the moment, his mind had +been an utter blank. + +A pupil continues his practice in "rolling" till he can drive his +machine to and fro across the aerodrome on a straight course, and with +its tail raised off the ground; the latter action being obtained by +the pupil by means of a suitable movement of the vertical lever which +operates his elevating planes. + +Now comes the time when a pupil, taking the pilot's seat, and with the +instructor sitting behind him--so as to be ready, if necessary, to +correct any error the novice may make--begins his first short flights +across the aerodrome. He rises only a few feet to begin with, and +flies on a straight course, alighting each time before he turns, and +running his machine round on the ground. He repeats this test until +his instructor feels he is sufficiently expert to take the machine +into the air alone. When this stage is reached, the instructor leaves +his position behind the pupil, and the latter goes on with his +practice till he can fly the length of the aerodrome alone, landing +neatly and bringing his machine round on the ground, and then flying +back again to his starting point. + +In the early days of flying schools, before a pupil went through any +regular system of instruction, there were remarkable incidents in +regard to these first flights. In one case a pupil, having bought his +own aeroplane from the proprietors of a school, insisted on having +installed in it a motor of exceptional power. When the time came for +him to make his first flight alone, and he opened the throttle of this +engine and it began to give its full power, the aeroplane ran only a +short distance across the ground, and then leapt into the air. The +engine was in charge of the machine, in fact, and not the pupil. Away +above the aerodrome, and beyond its limits, in a strange, erratic +flight, the biplane made its way. As the pupil struggled valiantly +with his engine switch, which appeared to have become jammed, he made +unconscious and jerky movements of his control levers. One moment the +machine would ascend a little, the next it would approach nearer the +ground; then it would swing either right or left. Those watching from +the aerodrome held their breath. But with the luck of the beginner, a +luck which is proverbial and sometimes amazing, the pupil managed at +length to stop his motor and land without accident--though by no means +gracefully--in an abrupt gliding descent. + + [Illustration: PUPIL AND INSTRUCTOR READY FOR A FLIGHT. _Photo by + Topical Press Agency._ + + The pupil, occupying in this case the driving seat, has in his right + hand the lever controlling the elevator and ailerons, while his feet + are on the bar which operates the rudder. The instructor (in the + passenger's seat) is demonstrating how, when necessary, he can place + his hand on the control lever, above that of the pupil, and correct + any error in manipulation of which the latter may be guilty.] + +Another story concerns one of those temperamentally reckless, +happy-go-lucky men who, though providence seems to watch over them, +are an anxiety nevertheless to their instructors. This pupil, breaking +the rules of a school, flew out on one of his first flights beyond the +limits of the aerodrome, disappearing indeed from the view of those +near the sheds. Not far from the aerodrome lay a main road, with +tramway-lines along it. A tram, with passengers on top, happened to be +passing down the road; and it was to the astonishment of these +passengers, and to their perturbation as well, that they observed an +aeroplane in full flight, moving very low across a neighbouring field, +and bearing down straight towards them. The machine passed, indeed, +unpleasantly close above their heads, and then vanished as +dramatically as it had appeared. Its pilot, as may be guessed, was the +pupil who had disobeyed orders, and was now on a wild and erratic +flight. Presently, after swerves and wanderings over the surrounding +country, he was discerned making his way back towards the aerodrome, +still flying unreasonably low. Some trees bordered one end of the +aerodrome; and towards these, as though he meant to finish his exploit +by charging into them, the novice was seen to be steering an +undeviating course. Nearer he came to them, and still he did not turn +either right or left. The instructor, and those gathered with him, +made up their minds that nothing could avert an accident. But it +happened that there was, between two of the trees, a space only large +enough for an aeroplane to pass through. A skilled pilot, a man of +experience, would not have cared to risk his machine in an endeavour +to creep between those trees. But this pupil, a complete novice, +steered boldly towards the opening and slipped through it with a +precision that would have aroused the envy of an accomplished pilot. +Then he landed on the aerodrome and climbed in leisurely fashion from +his machine--"not having turned a hair," as the saying goes. The +remarks of the instructor when he neared the machine, and began to +unburden himself, do not appear to be on record, and no doubt this is +as well. + +Having shown his ability to make a succession of straight flights, +taking his machine into the air with precision and landing without +awkwardness, the pupil finds himself faced next with the problem of +turning while in the air. On this stage, however, he is not allowed to +embark alone. The instructor takes his place again in the passenger's +seat, so as to be ready to help the novice should he become confused, +or find himself in any difficulty. Turns to the left are attempted +first; and the reason is that, the propeller of the aeroplane +revolving to the left--and the motor too if it is a rotary one--the +machine has a tendency which is natural to turn in this direction. +Half turns only are tried at first, the pupil landing before he has +completed the movement. In making these first turns a pupil finds that, +apart from his action with the rudder-bar, it is necessary to employ +the ailerons slightly, so as to prevent the biplane from tilting +sideways. The outer plane-ends of the machine have indeed, when a turn +is being made, a natural tendency to "bank" as it is called, or tilt +upward; the reason being that, as the machine swings round, these +outer plane-ends, moving faster for the moment than the wing-tips on +the inside of the turn, exercise a greater lift, and have an +inclination to rise. An experienced aviator, having learned what is a +safe "banking" angle, makes a deliberate use of this tendency when he +is turning, and may on occasion even exaggerate it, to facilitate the +swing of his machine on a very rapid turn, and to prevent it skidding +outwards. But with the novice, engrossed completely as he is with the +mere problem of getting his machine round in the air, "banking" is an +art that must be deferred for awhile. It is perilously easy, for a +beginner, to overstep the danger-line between a safe "bank" and a +side-slip. + + [Illustration: PUPIL AND INSTRUCTOR IN FLIGHT (1). _Photo by Topical + Press Agency._ + + A school biplane is seen just after it has left the ground, with the + pupil at the control levers, and the instructor seated behind + him--ready, if necessary, to correct any error the novice may make.] + +It is not long before the pupil can make a full left-hand turn; and +then he goes on to perfect himself in this movement, flying alone now, +and repeating the turn till he feels he can make it with confidence, +and at a fair height. + +And now he comes to his final evolutions. Having mastered the +left-hand turn, he proceeds to make one to the right. It used to be +the contention--a contention that is now disputed--that in this +movement, if the pupil employed his rudder-bar only, he would find the +biplane showed an inclination to rise; a tendency due to the +gyroscopic influence of the engine and propeller which--assuming a +rotary engine is used--are now revolving in the opposite direction to +that on which the machine is turned. What the pupil was recommended to +do, in order to counteract this rising movement, was to tilt down his +elevator a little, as he would in making a descent. + +When right-hand turns can be made with the same facility as those to +the left, the pupil begins to combine the two without descending, +making left turns and right turns, and so achieving in the air a +series of figures of eight. He learns also to fly a little higher, +thus preparing himself for one of his certificate tests. + +There are now certain very important rules which, in the navigation of +his craft, he must accustom himself to bear constantly in mind. Should +the engine of his machine, for example, betray any signs of failing, +he must tilt down his elevator very promptly, and place his craft in a +position for a descent. If he does not do this, and should the motor +stop before he has his biplane at an angle for descent, the machine +may lose speed so quickly, and its tail-planes show such a tendency to +droop--owing to the lessening of pressure on their surfaces, +consequent upon the failure of the motor--that there is a risk of the +craft coming to a standstill in the air and then either falling +tail-first, or beginning a side-slip that may bring it crashing to the +ground. + +The pupil must learn also, and this again is important, not to force +his machine round on a turn while it is climbing. If he does so the +power absorbed in the ascent, combined with the resistance of the turn, +may so reduce the speed of the machine that it threatens to become +"stalled," or reach a standstill in the air, with the result that it +either side-slips or falls tail-first. The procedure the pupil is +taught to follow is this: when he leaves the ground he climbs a little, +then he allows his machine to move straight ahead; then he proceeds +to ascend again for a spell, repeating afterwards the horizontal +flight. In this way he ascends by a series of steps, like climbing a +succession of hills in a car; and his turns should be made only during +the spells when he is flying horizontally. + +In this stage of his tuition, the pupil must learn also to make a +vol-plané, or descent with his engine stopped. The essential point to +be borne in mind, here, is that an aeroplane will continue in flight, +and remain under control, even when it is no longer propelled by its +engine. But what the aviator must do, should his engine stop through a +breakdown, or should he himself switch it off, is to bring the force +of gravity to his aid, and maintain the flying speed of his craft by +directing it in a glide towards the ground. Provided he does this, and +keeps his machine at such an inclination that it is moving at a +sufficient speed through the air, he will find that the craft +maintains its stability and that he has full command over its control +surfaces, being able to turn, say, right or left, or either increase +or slightly decrease the steepness of his descent. But all the time, +of course, seeing that it is gravity alone which is giving him his +flying speed, he is obliged to plane downward. + + [Illustration: PUPIL AND INSTRUCTOR IN FLIGHT (2). _Photo by Topical + Press Agency._ + + This shows clearly how the instructor, from his seat behind the pupil, + can lean forward and, by placing his hand on the control lever, check + the novice in an error of manipulation.] + +A vital point to remember, when a pupil is handling a "pusher" type of +biplane, is to incline the machine well downward, by a use of the +elevator, before switching off the motor. Unless this is done, and if +the machine is, say, at its normal horizontal angle when the engine is +stopped, the sudden removal of pressure from the tail-planes of the +craft, brought about by the absence of the wind-draught from the +propeller, may cause the tail so to droop as to render inoperative any +subsequent action of the elevator. When the tail droops, the +main-planes are set at a steep angle to the air, and this has a +slowing-up influence on the whole machine. It threatens therefore to +stand still in the air; its controls become useless; and the pupil is +faced probably with the danger of a side-slip. + +A story will illustrate this point; and it is one that has a special +significance, seeing that the error which might have cost him his life +was made by an aviator of experience. He had learned to fly on a +monoplane, and had devoted his subsequent flying, for many months, to +this one type of machine. Then he found himself associated with an +enterprise in which a number of "pusher" biplanes were employed, and +he decided that it would be useful for him to become accustomed to +this type of machine. His flying experience of course helped him, and +he soon found himself passing to and fro above the aerodrome, the +biplane well in hand. Then he thought he would make a vol-plané, with +his motor stopped, as he had been in the habit of doing in a +monoplane. He switched off his engine without further thought, and +moved his elevator to a position for the descent. But it was here that +he made the mistake. In a monoplane, which has the weight of the +engine and other gear well forward in the machine, the bow has a +natural tendency to tilt down when the motor is cut off--particularly +as the propeller-draught ceases to sweep under the sustaining planes. +Therefore one can, in such a machine, switch off safely without first +shifting the elevator, and getting the bow down as a preliminary. What +the pilot had forgotten, for the moment, was the essential difference +between monoplane and biplane. When he had switched off the engine in +the biplane, and moved his elevator as he was accustomed to do, he +found to his dismay that the machine failed to respond. Instead of +pointing its bow down, indeed, it began to tilt rearward. Also, and +this fact was noted by the airman with even more dismay, the craft +lost forward speed so rapidly that it became uncontrollable. The next +moment, the pilot helpless in his seat, the machine began a side-slip +towards the ground. One sweep it made sideways, falling till it was +not far short of the surface of the aerodrome. It paused an instant, +then began a side-slip in the opposite direction. But here good +fortune came to the pilot's aid. In this second swing, the machine +being near the ground, it came in contact with the surface of the +aerodrome before the "slip" had time to develop any high rate of +speed. The biplane took the ground sideways, breaking its +landing-chassis and damaging the plane-ends which came first in +contact with the earth. But the pilot emerged from the wreckage +unhurt. The accident was a lesson to him, though, as it was to others, +and as it should be to all pupils. A machine must be in a gliding +position before the engine is switched off. + +The art of the accomplished pilot, granted there is no reason for him +to reach earth quickly, is to glide at as fine an angle as is possible, +consistent of course with maintaining the speed of the machine +through the air, and so preserving his command over its controls. A +beautifully-timed, fine glide, the machine stealing down gracefully, +and touching the aerodrome light as a feather, at a precise spot the +airman has decided on even when he was several thousand feet high, is +a delightful spectacle for the onlooker, and a keen pleasure +also--from the point of view of his manipulative skill--to the aviator +himself. But a pupil, at any rate in his first attempts, must not +concern himself too much with any idea of a fine or graceful glide. It +is his business to get to the ground safely, and not trouble too much +whether his method is accomplished, or merely effective. Once with the +bow of his machine down, and his motor switched off, it must be his +concern to maintain the forward speed of his machine, which can be +done only by holding it well on its dive. For the novice, if he +attempts any fine or fancy gliding, there is the very real danger that, +in his inexperience, he may lose forward speed to such an extent that +his controls become inoperative, and his machine threatens to +side-slip. One's ear should, apart from the inclination of the machine, +and the sensation of the descent, help one materially in judging the +speed of a glide. There is a "swish" that comes to the ear, now the +engine is no longer making its clamour, which gives a guide to the +pace of one's downward movement. Aviators who are skilled, and have +done a large amount of flying, are able to judge with accuracy, by the +ear alone and without the aid of a mechanical indicator, what their +speed is as they pass through the air. + + [Illustration: PUPIL AND INSTRUCTOR IN FLIGHT (3). _Photo by Topical + Press Agency._ + + Here the pupil is descending in a glide with his engine stopped, the + cylinders of the rotary motor being clearly visible.] + +Having held his machine firmly on its glide, till it is quite near the +surface of the aerodrome, the pupil has next to think of making a neat +contact with the ground. The art here is, at a moment which must be +gauged accurately, to check the descent of the machine by a movement +of the elevator--to "flatten out," as the expression goes. If the +movement is made neatly the craft should, when only a few feet from +the ground, change from a descent into horizontal flight, and continue +on this horizontal flight for a short distance, losing speed naturally +each moment--seeing that there is no driving power behind it--and so +losing altitude also through its decrease in speed, until its wheels +come lightly in contact with the ground, and it runs forward and then +stands still. What the novice may do, if he is not careful, is to +"flatten out" when he is too high above the ground. The result is that +the machine slows up till it stands still in the air, robbed of its +speed, and then makes what is called a "pancake" landing: it descends +vertically, that is to say, instead of making contact with the ground +at a fine angle and with its planes still supporting it; and the +effect of such a "pancake," if the machine comes down with any force, +may be that the landing-chassis is damaged, or perhaps wrecked. But as +a rule, remembering that he has careful instruction to guide him +before he attempts a gliding descent, the pupil masters the art of +landing without difficulty, and without mishap. + +Now, after repeating perhaps certain of his evolutions, at the +discretion of his instructor, in order to make sure that he can +accomplish them with ease, the pupil is ready for the tests which will +give him his certificate of proficiency. + + + + +CHAPTER VI + +THE TEST FLIGHTS + + +The sport of aviation is controlled throughout the world, and flying +tests and events of a competitive character are governed, by the +International Aeronautical Federation. To the deliberations of this +central authority are sent delegates from the Aero Clubs of various +countries; and to these Aero Clubs, each in its respective country, +falls the task of governing flight, according to the rules and +decisions of the central authority. In Britain, controlling aviation +in the same way that the Jockey Club controls the Turf, we have the +Royal Aero Club of the United Kingdom; and it is this body, acting in +its official capacity, which grants to each new aviator, after he has +passed certain prescribed tests, a certificate which proclaims him a +pilot of proved capacity, and without which it is impossible for him +to take part in any contests held under the auspices of the Club. The +certificate, which is of a convenient size for carrying in the pocket, +contains a photograph of the pilot for purposes of identification, and +specifies also the rules under which the certificate is issued and +held. + +The theory of these tests, as imposed by the Club before it grants its +certificates, is that the novice should--so far as is possible in one +or two flights, made over a restricted area, and in a limited space of +time--be called on to show that he has a full control over a machine +in what may be called the normal conditions of flight. He is asked to +ascend, for instance, and gain a fair flying altitude; then to make +such evolutions as will demonstrate his command over the control +surfaces of the machine; and finally to show that he can, with his +motor switched off, descend accurately in a vol-plané, and bring his +machine to a halt within a specified distance of a mark. The tests are +set forth, officially, as follows:-- + + _A and B._ Two distance flights, consisting of at least 5 kilometres + (3 miles 185 yards) each in a closed circuit, without touching the + ground; the distance to be measured as described below. + + _C._ One altitude flight, during which a height of at least 100 metres + (328 feet) above the point of departure must be attained; the descent + to be made from that height with the motor cut off. The landing must + be made in view of the observers, without re-starting the motor. + +The rules drafted by the Club to govern these flights +are set forth herewith:-- + + The candidate must be alone in the aircraft during the tests. + + The course on which the aviator accomplishes tests A and B must be + marked out by two posts situated not more than 500 metres (547 yards) + apart. + + The turns round the posts must be made alternately to the right and to + the left, so that the flights will consist of an uninterrupted series + of figures of eight. + + The distance flown will be reckoned as if in a straight line between + the two posts. + + The alighting after the two distance flights in tests A and B shall be + made:-- + + (_a_) By stopping the motor at or before the moment of touching the + ground. + + (_b_) By bringing the aircraft to rest not more than 50 metres + (164 feet) from a point indicated previously to the candidate. + + All alightings must be made in a normal manner, and the observers must + report any irregularity. + +These flights as specified to-day, though they present no difficulty +to the pupil who has been well trained, are more stringent than they +were in the first scheme of tests as prescribed by the Club, and as +enforced for several years. In those early rules the distances were +the same as they are to-day, but in the altitude flight the height +required was only 50 metres (164 feet)--just half the height specified +to-day. It was not laid down, either, in the first rules, that the +engine should be stopped in this altitude flight when at the maximum +height, and that the descent should be made in a complete vol-plané, +without once re-starting the motor. As originally framed, indeed, the +rule as to the control of the engine in this altitude test was the +same as in regard to the distance flights--_i.e._, that it should be +stopped "at or before the moment of touching the ground." What the +present rule means, in this respect, is that the pupil must be really +proficient at making a vol-plané, without any aid at all from his +engine, before he can hope to pass the test; and such a proved +skill--say in the making of his first cross-country flight, should his +engine fail suddenly--may spell the difference between a safe or a +dangerous landing. + +The test flights for the certificate, undertaken only in such weather +conditions as the pupil's instructor may think suitable, are watched +by official observers appointed by the Royal Aero Club. It is the +business of these observers, when the prescribed flights have been +made, to send in a written report concerning them to the Club; and +acting on this report, after it has been considered and shown to be in +order, the Club issues to the pupil his numbered certificate. With the +successful passing of his tests the pupil's tuition is at an end. He +is regarded no longer as a novice, but as a qualified pilot. + + + + +CHAPTER VII + +PERILS OF THE AIR + + +There are people, very many people, who still regard flying as an +undertaking of an unreasonable peril, essayed mainly by those who are +in quest of money, notoriety, or sensation at any price. Such +people--still to be met with--have one mental picture, and one only, +of the flight of an aeroplane. They imagine a man in the air--and this +mere idea of altitude makes them shudder; and they picture this man in +a frail apparatus of wood and wire, capable of breaking to pieces at +any moment; or even if it does not break, needing an incessant +movement of levers to maintain it in a safe equilibrium; while they +reckon also that, should the engine of the machine suffer any +breakdown, the craft will drop to earth like a stone. Prejudice dies +hard; harder no doubt in England than in other countries. There are +still people, not few of them but many, who would be ready to declare, +offhand, that one aeroplane flight in six ends in a disaster. + +It is a truism, but one that has a peculiar truth in aviation, to say +that history repeats itself. To-day we find large numbers of people +who still cherish the opinion that--save perhaps when on service in +war--it is nothing less than criminal foolishness for men to ascend in +aeroplanes. That attitude of mind persists; the growing safety of +flight has not affected it to any appreciable degree. But those eager +for the progress of aviation need not despair, or imagine that their +particular industry is being treated with any exceptional +disapprobation. They have only to look back a little in our history, +no great distance, and read of the receptions that were accorded the +first pioneers of our railways. Public meetings of protest have not +been held to condemn aviation; yet they were frequent in the days when +the first railways were projected. Vast indignation was indeed aroused; +it was declared to be against all reason, and a matter of appalling +risk, that people should be asked to travel from place to place in +such "engines of destruction." But the railways managed to survive +this storm. They were placed here and there about the country; they +were improved rapidly; and it would be hard, to-day, to find a safer +place than the compartment of a railway train. + +Motor-cars, when their turn came, had to go through a similar ordeal. +There was the same indignation, the same chorus of protest; and when +the first of the pioneers, greatly daring, began actually to drive +their cars on the public highway, there were people who believed, and +who declared forcibly, that to permit such machines on our roads was +the crime of the century. Had not these pioneers struggled valiantly, +sparing neither time nor money, it is possible that the motor-car +might have been driven from the highway. But here again progress, +though it was retarded, could not be checked. The motor-car triumphed. +It grew rapidly more reliable, more silent, more pleasing to the eye; +and to-day it glides in thousands along our roads, a pleasure to those +who occupy it, a nuisance neither to pedestrians nor to other wheeled +traffic; more under control when it is well driven, and more ready to +stop quickly when required, than any horsed vehicle which it may have +replaced. At one time the papers were full of such headlines as: +"Another Motor-car Accident." Each small mishap received prominent +attention: and to the majority of people it seemed the wildest folly +to travel in such vehicles. Yet to-day--such is progress--these same +people ride in a motor-car, or a motor-cab, quite as a matter of +course and without a thought of risk. + +When one discusses flying and its dangers, it is essential to maintain +an accurate sense of proportion. In the very earliest days, for +instance, it must be realised that the few men who then flew--they +could be numbered on the fingers of one hand--exercised the greatest +caution. They did not fly in high winds; they treated the air, +realising its unknown perils, with a very great and a very commendable +respect. Thus it was that thousands of miles were flown, even with the +crudest of these early machines, and with motors that were constantly +giving trouble, without serious accident. But after this, and very +quickly, the number of airmen grew. New aviators appeared every day; +contests were organised extensively; there were large sums of money to +be won, provided that one pilot could excel another. And the spirit of +caution was abandoned. Even while they were still using purely +experimental machines--craft of which neither the stability nor the +structural strength had been tested adequately--there grew a tendency +among airmen to fly in higher winds, to subject their machines to +greater strains, and to attempt dangerous manoeuvres so as to please +the crowds who paid to see them fly. + +It was not surprising, therefore, that flying entered upon an era of +accidents. Such disasters were inevitable--inevitable, that is to say, +in view of the tendencies that then prevailed; though it is a +melancholy reflection that, had men been content to go ahead with the +same slow sureness of the pioneers, many of those lives which were +lost could have been saved. + +To the public, not aware exactly of all that was going on, it appeared +as though the navigation of the air, instead of growing safer, was +becoming more dangerous. There were suggestions, indeed, made quite +seriously and in good faith, that these endeavours to fly should cease; +that the law should step in, and prevent any more men from risking +their lives. What people failed to realise, when they adopted this +view, was that instead of one or two men flying there were now +hundreds who navigated the air; that flights in large numbers were +being made daily; that thousands of miles instead of hundreds were +being traversed by air--and often under conditions the pioneers would +have considered far too dangerous. These facts, had they been realised, +would have shown people what was actually the true state of affairs; +that, though accidents seemed numerous, and were indeed more frequent +than they had been in the earliest days of flying, they were as a +matter of proportion, reckoning the greater number of men who were +flying, and the thousands of miles which were flown, growing steadily +less frequent. + +There was this important fact to be reckoned with also. Each accident +that happened taught its lesson, and so made for future safety. A +considerable number of those early accidents can, for instance, be +traced to some structural weakness in a machine. The need in an +aircraft then, as now, was lightness; and in those days designers and +builders, owing purely to their inexperience, had not learned the art, +as they have to-day, of combining lightness with strength. So it was +that, as more powerful motors began to be fitted to aeroplanes, and +greater speeds were attained, it happened sometimes, when a machine +was being driven fast through a wind, that a plane would collapse, and +send the machine crashing to the ground; or in making a dive, perhaps, +either of necessity or to show his skill, a pilot would subject his +machine to such a strain that some part of it would break. + +From such disasters as a rule, greatly to be regretted though they +were, the industry emerged so much the wiser. The strength of machines +was increased; the engines which drove them were rendered more +reliable; and gradually too, though none too rapidly, the airmen who +piloted them grew in knowledge and skill. But all this time, while +flying was being made more safe, there were accidents frequently for +the papers to report; and this was due entirely to the fact that there +were now thousands of men flying, where previously there had been +fifties and hundreds. The public could not realise how rapidly the +number of airmen had grown; that practically every day, at aerodromes +scattered over Europe, flights were so frequent that they were +becoming a commonplace. It was in 1912, as one of its many services to +aviation that the Aero Club of France was able to show, by means of +statistics which could not be questioned, that for every fatality +which had occurred in France, during that particular year, a distance +of nearly 100,000 miles had been flown in safety. + +The cause of many of the early accidents was, as we have suggested, +the breakage of some part of a machine while in flight. In an analysis +for instance of thirty-two such disasters, it was shown that fourteen +were due to the collapse of sustaining planes, control-surfaces, or +some other vital part of a machine. And this risk of breakage in the +air was increased, in many cases, by the building of experimental +machines by men who had no qualifications for their task, and who +erred only too frequently, in their desire to attain lightness, on the +side of a lack, rather than an excess, of structural strength. + +There are many cases, unfortunately, that might be cited; but one may +be sufficient here. A man with an idea for a light type of biplane, a +machine designed mainly for speed, had an experimental craft +built--this was in the pioneer days of 1909--and insisted on fitting +to it a motor of considerable power. It was pointed out to him that +his construction was not sufficiently strong, in view of the speed at +which his machine would pass through the air. But he was of the quiet, +determined, self-opinionated type, who pursued his own way and said +little. He did not strengthen his constructional, and he began a +series of flying tests. In the first of these, which were short, the +planes stood up to their work, and the fears of the critics seemed +groundless. But a day came when, venturing to some height, the aviator +encountered a strong and gusty wind; whereupon one of his main-planes +broke, and he fell to his death. + +As a contrast to this tragedy, and a welcome one, there is a humorous +story, that is true, told of one experimenter. His knowledge of +construction was small, but what he lacked in this respect he made up +for in confidence; and he built a monoplane. This was in the days just +after the cross-Channel flight, and experimenters all over the world +were building monoplanes, some of them machines of the weirdest +description. The craft built by this enthusiast seemed all right in +its appearance; nothing had been spared, for instance, in the way of +varnish. When wheeled into the sun, for its first rolling test under +power, it looked an imposing piece of work. Friends were in attendance, +photographers also; and the would-be aviator was in faultless flying +gear. Mounting a ladder, which had been placed beside the machine, he +allowed his weight to bear upon the fusilage, and proceeded to settle +himself in his seat. But he, and the onlookers, were startled as he +did so by an ominous cracking of wood. It grew louder; something +serious and very unexpected was happening to the machine. As a matter +of fact, and just as it stood there without having moved a yard, the +whole of the flimsy structure parted in the middle, and the machine +settled down ignominiously upon the ground, its back broken, and with +the discomfited inventor struggling in the _débris_. + +It was far from easy, in the early days, for even an expert +constructor to calculate the strains encountered under various +conditions of flight. In wind pressure, under certain states of the +air, there are dangerous fluctuations--fluctuations which, even with +the knowledge we possess to-day, and this is far from meagre, exhibit +phenomena concerning which much more information is required. Machines +have collapsed suddenly, while flying on a day when the wind has been +uncertain, and have done so in a way which has suggested that they had +encountered, suddenly, a gust of an altogether abnormal strength. +Occasionally, though research work in this field is extremely +difficult, it has been possible to gain data as to the existence of +conditions, prevalent as a rule over a small area, which would spell +grave risk for any aeroplane which encountered them. There is a +strange case, verified beyond question, which occurred during some +tests with man-lifting kites at Farnborough. These kites are strongly +built, and withstand as a rule extremely high winds. On this +particular day a kite, when it had reached a certain altitude, was +seen to crumple up suddenly. The wind did not seem specially +strong--not at any rate on the ground; and there appeared no reason +for the breakage of the kite. Another was sent up; but the same thing +happened, and at the same altitude. Then the officer who was in charge +of the kites sent for a superior. A third kite was flown to see what +would happen. This one broke exactly as the others had done, and at +just the same height--about five hundred feet. Precise data could not +be gained as to this phenomenon; but the breaking of these +kites--which had withstood extremely high pressure in previous +tests--was reckoned to be due to the fact that, when they reached a +certain point in the air, they were subjected to the violent strain of +a sudden and complete change in the direction of the wind. To the +pilot of an aeroplane, entering without warning some such area of +danger, the result might naturally be serious in the extreme. + +The air has been, and is still, an uncharted sea. It does not flow +with uniformity over the surface of the earth. It is a constantly +disturbed element, and one that has the disadvantage of being +invisible. An aviator cannot see the dangerous currents and eddies +into which he may be steering his craft; and so it was not surprising, +in those days when aircraft were frailer than they should have been, +and cross-country flights were first being made, that machines broke +often while in flight and that the airman's enemy, the wind, claimed +many victims. + +Wind fluctuations that are dangerous, those which possess for one +reason or another an abnormal strength, are encountered frequently +when a pilot is fairly near the earth; and his peril is all the +greater in consequence. On a windy day, one on which there are heavy +gusts followed by comparative lulls, it is when he is close to the +ground, either in ascending or before alighting, that a pilot has most +to fear. If he is well aloft, with plenty of air space beneath him, +and particularly if he has a machine that is inherently stable, he has +little to fear from the wind; save, perhaps, should his engine fail +him, or should he find--as has been the case in war flying--that the +force of the wind, blowing heavily against him, and reducing the speed +of his machine, has prevented him from regaining his own lines before +his petrol has become exhausted. The modern aeroplane, when its +engine-power is ample, and it is at a suitable altitude, can wage +battle successfully even with a gale. But it must rise from the earth +when it begins a flight, and return to earth again when its journey is +done; and here, in the areas of wind that are disturbed by hills, +woods, and contours of the land, there are often grave dangers. The +wind at these low altitudes blows flukily. Its direction may be +affected, for instance, owing to the influence of a hill or ridge. A +side gust, blowing powerfully and unexpectedly against a machine, just +as it is nearing the ground before alighting, may cause it to tilt to +such an angle that it begins a side-slip. If the craft was +sufficiently high in the air, when this happened, the pilot would be +able, probably, to convert the side-slip into a dive, and the dive +into a renewal of his normal flight. But if such a side-slip begins +near the ground, and there is an insufficient amount of clear space +below the machine, it may strike the ground in its fall, and become a +wreck, before there is time for the pilot, or for the machine itself, +to exercise a righting influence. The fact that a craft may be forced +temporarily from its equilibrium, say by a side-slip, is known now to +represent no great risk for the airman, granted always that he has the +advantage of altitude. The machine, in such circumstances, falls a +certain distance. This is inevitable, and for the reason that it must +regain forward speed--which it has lost temporarily in its +side-slip--before its own inherent stability can become effective, or +its pilot regain influence over his controls. And it is this +unavoidable descent, this short period during which the machine is +recovering its momentum, and during which the pilot has no power of +control, that represents in a heavy wind the moments of peril, should +a pilot enter an area of disturbance just as he nears the ground. + +An aeroplane, when it sets out to fly in bad weather, may be likened +to a boat that is being launched from a beach upon a rough and stormy +sea. It is the waves close inshore, which may raise his craft only to +dash it to destruction, that the boatman has chiefly to fear; and for +the aviator, when he leaves the land and embarks upon the aerial sea, +or when he returns again from this element and must make his contact +with the earth, there lurks a risk that, caught suddenly by an air +wave, and with insufficient space beneath his machine, he may be +forced into a damaging impact with the ground. But the skill of +designers and constructors, to say nothing of the growing experience +of aviators, is working constantly towards a greater safety. + +Of the risk attached to engine failure, when he is piloting a craft +fitted with only one motor, an airman is reminded frequently, not only +from his own experience, but from that of other flyers. With the +aeroplane engine, even with types that have gained a high average of +reliability, there are many possibilities of a slight mishap--each of +them sufficient, for the moment, to put an engine out of action--that +the pilot who is flying across country must, all the time he is in the +air, have at the back of his mind the thought that at any moment, and +perhaps without any warning, he may find that his motive power has +gone. A magneto may fail temporarily; an ignition wire or a valve +spring break. The aeroplane engine of to-day is, of course, an +infinitely more reliable piece of apparatus than it was in those early +days when Henry Farman, working with extraordinary patience at +Issy-les-Moulineaux, was endeavouring--and for a long time without +success--to make the motor in his Voisin biplane run for five +consecutive minutes without breakdown. The war has shown us, and under +working conditions which have been exceptionally trying, how reliable +the aero-motor has become. But until duplicate plants have been +perfected, and more than one motor is fitted to aircraft as a matter +of course, there must always be this risk of failure. + +In the mere stoppage of a motor no great danger is implied. The pilot +must descend; that is all. His power gone, he must glide earthward. +But where the risk does lie, in engine failure, is that it may occur +at a moment when the airman is in such a position, either above +dangerous country or while over the sea, that he cannot during his +glide reach a place of safety. A study of flying will show how awkward, +and how perilous on many occasions, has been the stoppage of a motor +while a machine is in the air. Two historic instances, though they did +not, fortunately, end in a loss of the pilot's life, were the +compulsory descents into the Channel made by the late Mr. Hubert +Latham, during his attempts, in 1909, to fly from Calais to Dover. In +both these cases--once when only a few miles from the French shore, +and on the second occasion when the aeroplane was quite near its +destination--the motor of the Antoinette monoplane failed suddenly, +and the aviator could do nothing but plane down into the water. On the +first occasion he alighted neatly, suffering no injury, and being +rescued by a torpedo boat; but in the second descent, striking the +water hard, he was thrown forward in his seat and his head injured by +a strut. + +Less fortunate, in a case of presumed engine failure that will become +historic, was Mr. Gustave Hamel. Eager to reach Hendon, so as to take +part in the Aerial Derby on May 23rd, 1914, his great experience of +Channel flying induced him to risk the crossing with a motor which, on +his flight from Paris to the coast, had not been running well. His +monoplane was a fast machine, and the flight across Channel would have +taken him less than half an hour. But at some point during the +crossing, it seems obvious, his engine failed him, and he was unable +to prolong his glide either to gain the shore, or the vicinity of a +passing ship. His monoplane was never recovered; but the body of the +aviator--whose loss was mourned throughout the flying world and by the +general public as well--was discovered by some fishermen while +cruising off the French coast, and identified by means of a map, +clothing, and an inflated motor-cycle tyre; the last-named being +carried by the airman round his body to act as an improvised life-belt. + +Engine failure, though a fruitful cause of minor accidents, and of the +breakage of machines, has led to few fatalities; and this has been due +very largely to the fact that, though machines have descended under +dangerous circumstances, and have been wrecked in a manner that would +appear almost certain to kill their occupants, the pilots and +passengers have, as a matter of fact, escaped often with no more than +a shock or bruises. An aeroplane does not strike the ground with the +impact of a hard, unyielding structure. It is essentially frail in its +construction; and this frailness, though it spells destruction for the +machine in a bad descent, provides at the same time an element of +safety for its crew. Take the case for instance of a machine falling +sideways, and striking the ground with one plane or planes. These +planes, built of nothing stronger as a rule than wood, crumple under +the impact. But in their collapse, which is telescopic and to a +certain extent gradual, a large part of the shock is absorbed. By the +time the fusilage which contains the pilot touches ground, the full +force of the impact is gone. And it is the same, often, if a machine +makes a bad landing, say on awkward ground, and strikes heavily +bow-first. Granted that the occupants of the machine are well-placed, +and prevented by retaining belts from being flung from the machine, +they should escape injury from the fact that there is so much to be +broken, in the way of landing-gear and other parts, before the shock +of the impact can reach them in their seats. + +Had it not been for the capacity of the aeroplane to alight in awkward +places without injury to its pilot, many lives might have been lost +through descents in which motors have failed. Aviators have been +obliged to land in most unsuitable places: on the roofs of houses, for +instance, in small gardens, and frequently on the tops of trees. If he +finds his engine fail him when he is over a wood or forest, and there +is no chance save to descend upon the trees, a skilled pilot may save +himself as a rule from injury. Planing down, till he is just above the +tree-tops, he will then check suddenly, by a movement of his elevator, +the forward speed of his machine. The craft will come to a standstill +in the air; then, the support gone from its planes owing to the loss +of forward speed, it will sink down almost vertically, and with very +little violence, on to the tops of the trees. The machine itself will +naturally be damaged, seeing that boughs will pierce its wings in many +places, and that one or more of its planes may possibly collapse. But +the net result of such a landing--and this is the point which is +important for the pilot--is that the machine will be caught up and +suspended on the trees, making a comparatively light and gradual +contact, instead of there being any risk of its driving through the +trees and making a heavy impact with the ground. + +Humour, sometimes, may be extracted from such a predicament as engine +failure, though it needs an aviator with a very deeply ingrained sense +of humour to do so. The story is told, however, of a pilot who, flying +across difficult country with a passenger, found that his motor +failed--as they often will--just at a moment when there seemed no +possible landing-point below. Looking over the side of his machine, +and glancing quickly here and there, the aviator saw no alternative +but to bring his craft down in an orchard that lay below. Pointing +downward, to acquaint his passenger with their unpleasant situation, +and to call his attention also to the orchard, the pilot said with a +smile: + + "I hope you're fond of apples!" + +There is a risk in engine failure which has been emphasised more than +once; and it is that which may attend the pilot who, while prolonging +a glide in order to reach some landing-point, may be struck by a gust, +or enter some area of disturbed wind, just before he reaches the +ground and while his machine, moving slowly, is not in a position to +respond effectually to its controls. In one case an aviator, +struggling back towards the aerodrome with a motor which was not +giving its power, found that it stopped suddenly when he was not far +from a wood. Beyond the wood, which stood on a ridge, there was a +stretch of grassland. Endeavouring to reach this promised +landing-point, and holding his machine on a long glide, the airman +came across above the trees. He had almost reached his goal when his +machine entered a sudden down-current of wind--occasioned, no doubt, +by the proximity of the trees and ridge. Caught by this eddy, with no +motive power to help him and very little speed on his machine, the +pilot could not check its sudden dive; and the craft struck ground so +heavily that both he and his passenger were killed. + +We have mentioned previously, as a fruitful cause of accident, that +structural weakness of machines which has led, when conditions have +been unfavourable, to a sudden collapse in the air. But apart from +weakness in construction, and notably in accidents with early-type +machines, there was the risk attached to mistakes in design, which +produced machines which were unstable under certain conditions--and +the dangers also which were due to inefficient controlling surfaces. +It was no uncommon thing, in pioneer days, for a machine to be built +which would not respond adequately to its elevator or rudder; though +this unpleasant fact might not be discovered by the pilot until he was +actually in flight, and perhaps at some distance from the earth. In +one case, which is authenticated, a two-seated monoplane of a new type +was tested at first in a series of straight flights, and found to be +promising in its behaviour. A skilled pilot then took charge of it, +and, carrying a passenger, proceeded to some more ambitious flights. +Steering the machine away across the aerodrome, and flying at a low +elevation, he approached a belt of woods. The machine was too near the +ground to pass over the tops of the trees; so the aviator decided to +make a turn, and fly parallel with the wood. But when he put his +rudder over, so as to bring the machine round in a half-circle, he +found to his dismay that there was no response. In the design of the +machine, as it was found afterwards, the rudder had been made too +small: it would not steer the machine at all. In the little space that +was left him, and to avoid crashing into the trees, the pilot had to +bring his craft to earth in such an abrupt dive that it was wrecked +completely. He and the passenger, though, escaped unhurt. + +Carelessness has, fairly frequently, played its part in aeroplane +disasters. Sometimes a pilot has been careless, or perhaps in a hurry, +and has failed to locate some defect which, had it been seen and +attended to, would have saved a disaster when a machine was in flight. +Such inattention, which is sufficiently dangerous in the handling of +any piece of mechanism, is deadly in its peril when those who are +guilty of it navigate the air. A man who brings out a machine time +after time, and ascends without examining it carefully, is adding +vastly to the risks that may attend his flight; and the same remark +will apply to the carelessness of mechanics; though as a class, in +view of the arduous nature of their work, and of the long hours they +have frequently to be on duty, with no more than hasty intervals for +rest, their average of care and accuracy is very high. But there have +been cases--mostly in the past though--in which a machine has +developed a structural defect, or some defect say in its control gear, +which ought to have been observed by its mechanics, but which has not +been so detected, and has led to a catastrophe in flight. With +machines built lightly, and subjected to heavy strains when at high +speeds, it is vital that the inspection of such craft, that the +examination of every detail of them, should be carried out in a spirit +of the greatest care. The fraying through of a control wire, unnoticed +by those in charge of a machine, has been sufficient to cause a +disaster; while carelessness in overhauling a motor, a task of supreme +importance, seeing that its engine is the heart of an aeroplane, has +been another cause of accident. It is vital that, when an airman +ascends, both his machine and his motor should be in perfect working +trim. He himself, before he flies, and after his aeroplane has been +wheeled from its shed, should make it a habit to look over the machine, +so as to impose his own personal check upon the work his mechanics +have done. + +Even when every care has been taken, and a machine ascends in perfect +trim, there is the human factor, represented by the pilot, which must +be considered always in a study of aeroplane accidents. There is often, +when a catastrophe seems imminent, a choice of things that may be +done. If an engine fails, for instance, under awkward circumstances, +the pilot may have, say, three courses open to him in regard to his +descent. Two may spell disaster and the third safety. It is here that +the innate judgment of a pilot, combined with his experience, will +tell its tale. But this personal element in flying, and particularly +in regard to an accident, is often a very difficult one for which to +make allowances. + +The whole problem of aeroplane disasters is, to the analyst, one of +unusual complexity. Take for example the case of a pilot who is flying +alone in his machine, and at an altitude of several thousand feet. +Suddenly something happens; the machine is seen to fall and the pilot +is killed. Experts come to examine the aircraft, but it is wrecked so +completely that little which is reliable can be gathered from any +inspection; while the man who could explain what has happened--the +pilot of the machine--is dead. The statements of eyewitnesses, when +taken on such occasions, are often misleading. One person heard a +crash, and saw something fall away from the machine. Another declares +the engine stopped suddenly and that the machine "fell like a stone." +Another says he is sure he saw one of the wings fold upwards and the +machine swing and fall. And so on. It is extremely difficult, even for +a technical eye-witness, to be sure of what he sees when things happen +quickly and at a distance from him; while the statements of +non-technical people, who are not trained in observation, are +generally so unreliable as to be useless. + +It has happened often therefore, far too often, in aeroplane +fatalities that have happened from time to time, that the cause of +such accidents has, even after the most careful investigation, had to +be written down a mystery. But in more than a few cases, though the +evidence has been far from conclusive, it has been considered that a +pilot has been guilty of some error of judgment. There were puzzling +instances, notably in the early days of flying, when airmen began +first to make cross-country flights, of engines being heard to fail +suddenly, and machines seen to fall to destruction. That engines +should break down was not surprising; they were doing so constantly; +but there was no reason why, even if they did fail, a machine should +fall helplessly instead of gliding. But what was thought to have +happened, in more than one of these cases, was that the pilot, through +an error of judgment, had failed to get down the bow of his machine +when his motor gave signs of stopping. The craft concerned were, it +should be mentioned, "pusher" biplanes; and the same rule applied to +them, in cases of engine failure, as has been explained in a previous +chapter, and as is emphasised nowadays in the instruction of the +novice. But in those days the beginner had frequently to learn, not +from wise tuition, but from bitter experience; and he was lucky, often, +if he learned his lesson and still retained his life. On certain +early-type biplanes, for instance, machines with large tail-planes, +and engined as a rule by a motor which was giving less than its proper +amount of power, it was most dangerous for a pilot if, on observing +any signs of failing in his engine, he sought to fly on in the hope +that the motor would "pick up" again, and continue its work. Directly +there was a tendency of the motor to miss-fire, or lessen in the +number of its revolutions per minute, the consequent reduction of the +propeller draught, as it acted on the tail of the machine, would cause +this tail to droop, and the machine to assume very quickly a dangerous +position. And when once it began to get tail-down, as pilots found to +their cost, there was nothing to be done. The machine lost what little +forward speed it had, and either fell tail-first, or slipped down +sideways. Such risks as these, which were very real, were rendered +worse owing to the fact that, in much of the cross country flying of +the early days, pilots flew too low. They lacked the confidence of +those who followed them, and were too prone to hug the earth, instead +of attaining altitude. It was not realised clearly then, as it is now, +that in height lies safety. And so when a machine lost headway through +engine failure, and was not put quickly enough into a glide, it +happened often that it had come in contact with the earth, and had +been wrecked, before there was any chance for the pilot to regain +control, or for the machine itself to exhaust its side-slip, and come +back to anything like a normal position. + +But the failure of the human factor in flying, the lack of skill of a +pilot that may lead to disaster, is shown by statistics to play no +more than a small part, when accidents are studied in numbers and in +detail. Some time before the war, in an analysis of the accidents that +had befallen aviators in France--accidents concerning which there was +adequate data--it was shown that only 15 per cent. of them could be +attributed to a failure in judgment or skill on the part of the pilot. + +Apart from errors, however, in what may be called legitimate piloting, +there have been regrettable accidents due to trick or fancy flying. +Putting a machine through a series of evolutions, to interest and +amuse spectators, is not of course in itself to be condemned. In such +flying, and notably for instance in "looping the loop," facts were +learnt concerning the navigation of the air, and as to the apparently +hopeless positions from which an aeroplane would extricate itself, +which were of very high value, from both a scientific and practical +standpoint. Public interest in aviation was increased also by such +displays; and it is very necessary that there should be public +interest in flying, seeing that it is the public which is asked to pay +for the development of our air-fleets. But the man who undertakes +exhibition flying needs not only to be a highly-skilled pilot, but a +man also of an exceptional temperament--a man whose familiarity with +the air never leads him into a contempt for its hidden dangers; a man +who will not, even though he is called on to repeat a feat time after +time, abate in any way the precautions which may be necessary for his +safety. In looping the loop, for instance, or in upside-down flying, +it is necessary always that the aeroplane should be at a certain +minimum height above the ground. Then, should anything unexpected +happen, and the pilot lose command temporarily over his machine, he +knows he has a certain distance which he may fall, before striking the +ground; and during this fall the natural stability of his machine, +aided by his own operation of the guiding surfaces, may bring it back +again within control. But if he has been tempted to fly too near the +ground, and has ignored for the moment this vital precaution, and if +something happens for which he is not prepared, then the impact may +come before he can do anything to save himself. + +In the early days of flying, when aviators attempted an acrobatic feat, +they ran a far heavier risk than would be the case to-day; and for +the simple reason that their machines, not having a strength +sufficient to withstand any abnormal stresses, were likely to collapse +in the air if they were made to dive too rapidly, or placed suddenly +at any angle which threw a heavy strain on their planes. A machine for +exhibition flying needs to be constructed specially; but this was not +realised till accidents had taught their lesson. + +It is a regrettable fact, one which emerges directly from a study of +aeroplane accidents, that many of them might have been avoided had men +been content to follow warily in the footsteps of the pioneers, and +not run heavy risks till they themselves, and the machines they +controlled, had been prepared, by a long period of steady flying, to +meet such greater dangers. The first men who flew realised fully the +risks they ran. But when flying became more general, and men found +machines ready to their hands, machines which it was a simple matter +to learn to fly, this early spirit of caution was forsaken, and feats +were attempted which brought fatalities in their train, and which +seemed to emphasise the risks of aviation, and did it the very bad +service that they fixed in the public mind a notion of its dangers, +and prevented men from coming forward to take up flying as a sport. + + + + +CHAPTER VIII + +FACTORS THAT MAKE FOR SAFETY + + +It has been calculated that nearly half the aeroplane disasters of the +early days were due to a structural weakness in machines, or to +mistakes either in their design, or in such details as the position, +shape, and size of their surfaces. To-day, thanks to science, and to +the growing skill and experience of aeroplane designers and +constructors, this risk of the collapse of a machine in the air, or of +its failure to respond to its controls at some critical moment through +an error in design, has been to a large extent eliminated. That such +risks should be eliminated wholly is, as yet, too much to expect. + +One of the factors making for safety has been the steady growth in the +general efficiency of aircraft: in the curve of their wings which, as +a result largely of scientific research, has been made to yield a +greater lift for a given surface and to offer a minimum of resistance +to their passage through the air; in the power and reliability of +their engines; in the efficiency of their propellers; and in the +shaping of the fusilage of a machine, and in the placing and +"stream-lining" of such parts as meet the air, so as to reduce the +head resistance which is encountered at high speeds. Such gains in +efficiency, which give constructors more latitude in the placing of +weight and strength where experience show they are needed, have gone +far to produce an airworthy machine. In the old days, when machines +were inefficient, a few revolutions more or less per minute in the +running of an engine meant all the difference between an ascent and +merely passing along the ground. But nowadays, through the all-round +increase in efficiency that has been obtained, a machine will still +fly upon its course without losing altitude, and respond to its +controls, even should the number of revolutions per minute of its +engine be reduced considerably. + +When given a greater efficiency in lifting surfaces and +power-plants--and profiting also from the lessons that had been learnt +in the piloting of machines--constructors were able to devote their +attention, and to do so with certainty instead of in a haphazard way, +to the provision of factors of safety when a craft was in flight. With +a machine of any given type, if driven through the air at a certain +speed, it is possible to estimate with accuracy what the normal +strains will be to which it is subjected. But even if such data are +obtained, and the machine given the strength indicated, this factor of +safety is insufficient. It is not so much the normal strains, as those +which are abnormal, that must be guarded against in flight. A +high-speed machine, if piloted on a day when the air is turbulent, may +be subjected to extraordinarily heavy strains; rising many feet in the +air one moment, falling again the next, and being met suddenly by +vicious gusts of wind--in much the same way that a fast-moving ship, +when fighting its way through a rough sea, is beaten and buffeted by +the waves. Air waves have not of course the weight, when they deliver +a blow, that lies behind a mass of water; but that these wind-waves +attain sometimes an abnormal speed, and have a tremendous power of +destruction, is shown in the havoc that is caused by hurricanes. + +It seems astonishing to many people that such a frail machine as the +aeroplane, with its outspread wings containing nothing stronger often +than wooden spars and ribs, covered by a cotton fabric, should be +capable of being driven through the air at such a speed, say, as 100 +miles an hour, encountering not only the pressure of the air, but +resisting also the fluctuations to which it may be subjected. But, +underlying the lightness and apparent frailty of such a wing, when one +sees it in the workshop in its skeleton form, before it has been +clothed in fabric, there is a skill in construction, and an experience +in the choice, selection, and working of woods, that produces a +structure which, for all its fragile appearance, is amazingly strong. +And the same applies, nowadays, to all the other parts of an +aeroplane. That it should have taken years to gain such strength, and +to reduce so largely the risk of breakage, is not in itself +surprising. Men had to devise new methods in construction--always with +the knowledge that weight must be saved--and to create new factors of +safety, before they could build an airworthy craft. + +To-day, when a man flies, he need have no lurking fear, as had the +pioneers, that his craft may break in the air. Even when it is driven +through a gale, plunging in the rushes of the wind, yet held straining +to its task by the power of its motor, the modern aeroplane can be +relied upon; and not in one detail of its construction, but in every +part. Experience, the researches of science, and the growing skill +with which aircraft are built, stand between the airman and many of +his previous dangers. The aeroplane to-day, one of the structural +triumphs of the world in its lightness and its strength, has a factor +of safety which is sufficient to meet, and to withstand, not merely +ordinary strains, but any such abnormal stresses as it may +encounter--and which may be many times greater than the strains of +normal flight. + +The aviator knows also that his engine, as it gives him power to +combat successfully his treacherous enemy, the wind, represents the +fruit of many tests and of many failures, and of the spending of +hundreds of thousands of pounds. Many of its defects have revealed +themselves, and been rectified; it is no longer light where it should +have weight of metal, nor weak where it should be strong. So far as +any piece of mechanism can be made reliable, consisting as it does of +a large number of delicate parts, operating at high speed, the +aeroplane motor has been made reliable. But, so long as one motor is +used, there must always, as we have said, remain a risk of breakdown. +It is for this reason that, thanks largely to the stimulus of the +war--which has created a practical demand for such machines--aeroplanes +are now being built, and flown with success, which are fitted with +duplicate motors. With such machines, which give us a first insight as +to the aircraft of the future, engine failure begins to lose its +perils--particularly in regard to war. More than once during the great +campaign, when flying a single-engine machine, an aviator has found +his motor fail him, and has been obliged to land on hostile soil; with +the result that he has been made prisoner. But with dual-engine +machines it has been found that, when one motor has failed +mechanically, or has been put out of action by shrapnel, the remaining +unit has been sufficient--though the machine has flown naturally at a +reduced rate--to enable the pilot to regain his own lines. + +In peace flying, too, as well as in war, the multiple-engined +aeroplane brings a new factor of safety. If one of his motors fails, +and he is over country which offers no suitable landing-place, the +pilot with a duplicate power-plant need not be concerned. His +remaining unit or units will carry him on. There are problems with +duplicate engines which remain to be solved--problems of a technical +nature--which involve general efficiency, transmission gear, and the +number and the placing of propellers; but already, though this new +stride in aviation is in its earliest infancy, results that are most +promising have been obtained. + +To those who study aviation, and have done so constantly, say from the +year 1909, one of the most striking signs of progress lies in the fact +that, though unable at first to fly even in the lightest winds, the +aviator of to-day will fight successfully against a 60 miles-an-hour +wind, and will do battle if need be, once he is well aloft, with a +gale which has a velocity of 90 miles an hour. He will ascend indeed, +and fly, in any wind that permits him to take his machine from the +ground into the air, or which the motor of his craft will allow it to +make headway against. And here, though machines are still experimental, +there is removed at one stroke the earliest and the most positive +objection of those who criticised a man's power to fly. When the first +aeroplanes flew the sceptics said: "You have still to conquer the wind, +and that you will never do. Aeroplanes will be built to fly only in +favourable weather, and this will limit their use so greatly that they +will have no significance." But to-day the aviator has ceased, one +might almost say, to be checked or hampered by the wind. If the need +is urgent, as it often is in war, then it will be nothing less than a +gale that will keep a pilot to the ground, provided he has a +sufficiently powerful machine, and a suitable ground from which to +rise--and granted also that he has no long distance to fly. +Wind-flying resolves itself into a question of having ample +engine-power, of being able to launch a machine without accident, and +get it to earth again without mishap; and of being able to make a +reasonable headway against the wind when once aloft; and these +difficulties should solve themselves, as larger and heavier machines +are built. + +Apart from the growing skill of the aviator, which has been bought +dearly, science can now give him a machine, when he is in a wind, that +needs no exhausting effort to hold it in flight. Craft are built, as a +matter of certainty and routine, which have an automatic stability. +Science has made it possible indeed, by a mere shaping and placing of +surfaces, and without the aid of mechanical devices, to give an +aeroplane such a natural and inherent stability that, when it is +assailed by wind gusts in flight, it will exercise itself an adequate +correcting influence. To understand what this means it should be +realised that, when such a machine is in flight say in war on a +strategical reconnaissance, and carries pilot and passenger, the +former can take it to a suitable altitude and then set and lock his +controls, and afterwards devote his time, in common with that of his +passenger, to the making of observations or the writing of notes. The +machine meanwhile flies itself, adapting itself automatically to all +the differences of wind pressure which, if it had not this natural +stability, would need a constant action of the pilot to overcome. All +he need do is to maintain it on its course by an occasional movement +of the rudder. With such a machine, even on a day when there is a +rough and gusty wind, it is possible for an airman to fly for hours +without fatigue; whereas with a machine which is not automatically +stable, and needs a ceaseless operation of its controls, the physical +exhaustion of a pilot, after hours of flight, is very severe. + +So, already, one sees these factors of safety emerge and take their +place. There is no longer a grave peril of machines breaking in the +air; there need be no longer, with duplicate power-plants, the +constant risk of engine failing; while that implacable and treacherous +foe, the wind, is being robbed daily of its perils. + + + + +CHAPTER IX + +A STUDY OF THE METHODS OF GREAT PILOTS + + +The masters of flying, and this is a fact the novice should ponder +well, have been conspicuous almost invariably for their prudence. No +matter how great has been their personal skill, they have never lost +their respect for the air; and this is why so many of the great flyers, +after running the heaviest of risks in their pioneer work, have +managed to escape with their lives. What patience and sound judgment +can accomplish, when pitted even against such dangers as must be faced +by an experimenter when he seeks to fly, is shown by an incident from +the early career of the Wright brothers. With one of their gliders, a +necessarily frail machine, and in tests made when they were both +complete novices, they managed to make nearly 1000 glides; and not +once in all those flights, during which they were learning the +rudiments of balance and control, did they have a mishap which damaged +at all seriously their machine. + +These two brothers, Wilbur and Orville, offer to the student of flying, +apart from the historical interest which is attached to their work, a +temperamental study of the greatest interest. Wilbur, who was grave, +judicial--a man of infinite patience and with an exceptional power of +lucid thinking--found in his brother and co-worker, Orville, a +disposition just such as was necessary to strengthen and support him +in his great research; a disposition more vivacious and more +enthusiastic than his, and one which acted as a balance to his own +gravity. The method of these brothers in first attacking a mass of +data, most of it contradictory--and a large amount of it of little +intrinsic value--and then framing their own research on lines which +they discussed and studied with methodical care, forms a model of +sound judgment for workers in any complex field. Their kite +experiments, their gliders, their refusal to hasten their steps unduly +in the fitting of an engine to their machine, reveal again their +discretion, and that judgment which never failed them. Perseveringly +and unswervingly, exhibiting doggedness without obstinacy, and with +their work illuminated always by the highest intelligence, they moved +surely from stage to stage; and at last, when they fitted a motor to +their machine, such was their knowledge of the air, and of the control +of their craft when in flight, that they were able to make this +crucial step, from a glider to a machine driven by power, without any +breakage of their apparatus or injury to themselves. + +The same self-control marked them when, having demonstrated that men +can ascend in a power-driven machine, and steer such a craft at will, +they dismantled their apparatus and commenced their negotiations with +foreign Governments. Wilbur Wright, too, when he came to France to +give his first public demonstrations, provided by his methods a model +for aviators, either present or future. He resisted all temptations to +make injudicious flights. If he considered the weather conditions at +all unsuitable he said that he would not ascend, no matter who might +have come to see him fly, and that settled the question once and for +all. He was deaf to all pleadings, to all proffered advice. When +conditions were perfectly suitable, and then only, would he have his +craft brought from its shed. + +The same meticulous care, in every flight he made, marked his +preparation of his machine. Motor, controls, propeller-gearing, every +vital part, received its due attention; and this attention was never +relaxed, no matter how frequently he flew, nor how great was his +success. An observer of one of his early flights at Le Mans has given +us an impression that is typical of this unremitting care. There was a +question of some small adjustment that Wilbur had instructed should be +made to the machine. When the time came to fly, and he was in the +driving-seat waiting for the motor to be started, he called a question +as to whether this detail had been attended to. He was assured it had. +But this was not enough for Wilbur Wright. Climbing from his seat and +walking round the biplane, he made a careful examination for himself, +and then returned quietly to the front of the machine. People who came +to see him fly, and expected some picturesque hero, leaping lightly +into his machine and sweeping through the air, found that reality +disappointed them. This quiet, unassuming man, who slept in his shed +near his aeroplane, and took his meals there also, refused to be fêted +or made a fuss of; while his deliberation in regard to every flight, +and his indifference to the wishes or convenience of those who were +watching him, drove nearly frantic some of those influential people +who, coming in motor-cars and with a patronising spirit, thought the +aviator might be treated rather as a superior mountebank, who would be +only too glad to come out and fly when a distinguished guest arrived. + +M. Louis Bleriot, whose name was next to become world-famous, after +that of the Wrights, and who owed his distinction to his crossing of +the English Channel by air, revealed in his character determination +and courage, and imagination as well. And yet allied to these +qualities--and here lay his temperamental strength--he had a spirit of +quiet calculation and an eery considerable shrewdness. He knew, and was +not afraid of showing that he knew, the full value of caution. And yet +on occasion also--as in the cross-Channel flight--he was ready to put +everything to the test, and to take promptly and with full knowledge +the heaviest of risks. The motor in his cross-Channel monoplane was an +experimental one of low power, air-cooled, and prone to over-heat and +lose power after only a short period of running. To cross the Channel, +even under the most favourable circumstances, he knew this engine must +run without breakdown for thirty-five or forty minutes. This it had +not done--at any rate in the air--before. There was a strong +probability--and Bleriot knew this better than anyone else--that the +motor would fail before he reached the English shore, and that he +would have to glide down into the sea. It was arranged that a +torpedo-boat-destroyer should follow him, and this afforded an element +of safety. But Bleriot guessed--as was actually the case--that he +would outdistance this vessel in his flight, and soon be lost to the +view of those upon it. And he did not deceive himself as to what might +happen, if his engine stopped and he fell into the water. His +monoplane, as it lay on the surface of the water, would, he knew, +prove a very difficult object to locate by any vessel searching for it; +while it was so frail that it would not withstand for long the +buffeting of the waves. He carried an air-bag fixed inside the +fusilage, it is true; but, in spite of this precaution, Bleriot knew +he ran a very grave peril of being drowned. There was, on the morning +of his flight, another disturbing factor to be reckoned with. The wind, +calm enough when he first determined to start, began very quickly to +rise; and by the time he had motored from Calais to the spot where his +aeroplane lay, and the machine itself was ready for flight, the wind +out to sea was so strong that the waves had become white-capped. But +Bleriot, aware of the value at such moments of decision, had made up +his mind. He knew that, if his engine only served him, his flight +would be quickly made. And so he reckoned that, even though the wind +was rising, he would be able to complete his journey before it had +become high enough seriously to inconvenience him; and in this +calculation, as events proved, he was right. His motor did its work; +and, though the wind tossed his machine dangerously when he came near +the cliffs of the English coast, he succeeded in making a landing and +in winning the £1000 prize. + +M. Hubert Latham, Bleriot's competitor in the cross-Channel flight, +had that peculiar outlook on life, with its blend of positive and +negative--puzzling often to its owner as well as to the onlooker--that +is called, for the sake of calling it something, the artistic +temperament. He was impulsive, yet impassive often to a disconcerting +extent: extremely sensitive and reserved as a rule, yet on occasion +almost boyishly frank and communicative. He lacked entirely ordinary +shrewdness, or everyday commonsense. He was a man of a deeply romantic +temperament, and this inclined him towards aviation and the conquest +of the air; while in actual piloting he had such a quickness and +delicacy of touch, and such a sure and instinctive judgment of +distance and of speed, that he was undoubtedly a born aviator--one of, +if not the, finest the world has seen. That he did not attain greater +success, from a practical point of view, was due to the fact that he +was without the level-headedness and the business ability which +characterised others of the pioneers. When he was in flight in his +Antoinette--Latham flew that machine and no other--he was a supreme +artist. His machine was beautiful, and his handling of it was +beautiful. + +M. Henri Farman, beyond question, of course, another of the great +pioneers, is a man of imagination and of a highly nervous temperament, +yet possessing at the same time a very pronounced vein of caution. No +success has for an instant caused him to lose his head. At Rheims, in +1909, when he had created a world's record by flying for more than +three hours without alighting, those who hastened to congratulate him, +after his descent, found him absolutely normal and unmoved. Washing +his hands at a little basin in the corner of the shed, he discussed +very quietly and yet interestedly, and entirely without any +affectation of nonchalance, the details of his flight and the +behaviour of his motor. His attitude was that the flight was something, +yet not a great deal, and that very much more remained to be done; a +perfectly right and proper attitude, one which was just as it should +be, yet one encountered very rarely under such circumstances--human +nature being what it is. + +Farman's patience, his perseverance, were in the very early days what +gave him his first success. With the biplane the Voisins built him, +for example, nothing but his own determination, and his ceaseless work +upon his engine, enabled him to do more with this type of machine than +others had done. + +As the aeroplane increased in efficiency, and in the reliability of +its engine, and was used in cross-country journeys, there came an era +of flying contests, in which large prizes were offered, and in which +airmen passed between cities and across frontiers, and traversed in +their voyages the greater part of Europe. In the making of these +flights, which needed an exceptional determination and skill, allied +also to a perfect bodily fitness, there came into prominence certain +aviators whose precision in their daily flights, passing across +country with the speed and regularity of express trains, won +admiration throughout the world. Prominent among these champions was +the French naval officer, Lieut. J. Conneau, who adopted in his +contests the flying name of "Beaumont." His success and his exactitude, +when piloting a Bleriot monoplane for long distances above unknown +country, guiding himself by map and compass, gave the public an +indication, for the first time, of what might be accomplished by an +expert airman when flying a reliable machine. Lieut. Conneau's success, +winning as he did several of the great contests one after another, +and the absence of error in his flying from stage to stage, and his +accurate landings upon strange and often badly-surfaced aerodromes, +should provide for the novice in aviation--when the secret of this +success is understood--an object-lesson that is of value. + +This quiet, efficient airman, and his methods in making himself so +competent, afford indeed an interesting study. Here was one who, +suited already by temperament for the tasks he undertook, trained +himself with such care, with such patience, that he attained as nearly +to the ideal as is possible for living man. When he had asked for, and +obtained, permission from the Minister of Marine to study aviation in +all its aspects, he began his task in a spirit that was admirable. "I +was convinced," he wrote afterwards, "that a perfect knowledge of +machines and motors was necessary before one could use them." For +nearly a year, on leaving the sea, he worked to obtain a certificate +as a practical engineer. This gained, he went through a period of +motor-cycling and motor-car driving, varied by flights in captive +balloons and free balloons, and afterwards in airships. Following this +he obtained leave to stay for a time at Argenteuil, and enter the +works of the builders of the Gnome motor. Here he lived the life of a +mechanic, and learned to understand completely the operation of this +famous engine, which he was destined to drive afterwards in his great +flights. + +Presently he went to Pau, in order to obtain his certificate as an +aeroplane pilot. At first, taking his turn with a number of other +pupils, he could only get a few minutes at a time in a machine. But +being a keen observer he found that, by listening to the instructors, +and watching the flights made, he could pick up useful information +without being in the air; and this led him to the observation that "to +learn to fly quickly, one must begin by staying on the ground." + +He secured in due course his certificate of proficiency, astonishing +the instructors by his skill and sureness in the handling of his +machine. Then followed what might be called an apprenticeship to +cross-country flying. He made constant flights in all weathers, flying +for instance from Pau to Paris, and studying closely not only the +piloting of his machine and the aerial conditions he encountered, but +also the art of using a map and compass, and in finding a path without +deviation from point to point. Improving daily in confidence and skill, +and learning practically all there was to be learned as to the +handling of a Gnome-engined Bleriot, he was able soon to fly under +weather conditions which would have seemed hopeless to a pilot of less +experience; while engine failure and other troubles, which overtook +him frequently on these long flights, taught him to alight without +damaging his machine on the most unpromising ground. + +Now, feeling himself at last competent, he obtained permission to +figure on the retired list, so that he might take part in the aviation +races which were then being organised. Of these great contests Lieut. +Conneau won three in succession--the Paris-Rome Race, in which he flew +928 miles in 21 hours 10 minutes; the European Circuit, in which he +flew 1,060 miles in a total flying time of 24 hours 18 minutes; and +the Circuit of Britain, in which he flew 1,006 miles in 22 hours 26 +minutes. Lieut. Conneau's success, which appeared extraordinary, and +his skill in finding his way across country, which seemed abnormal, +were due as a matter of fact to his assiduous preparation, and to a +temperament which, even under the heavy strains of constant flying, +saved him from errors of judgment or ill-advised decisions. His +temperament was, indeed, ideal for a racing airman. He was quiet and +collected, with a natural tendency to resist excitement or confusion. +His physique was admirable, and he had that elasticity of strength, +both in body and nerve, which are invaluable to a pilot when on long +flights. Also, and this was of importance, Lieut. Conneau had a +natural cheerfulness of disposition which carried him without +irritation or despondency through those ordeals of weather, and of +mechanical breakdowns and delays, which are inseparable from such +contests as those in which he was engaged. + +A contrast to Lieut. Conneau, both in temperament and method, was his +rival Jules Vedrines--the aviator who, notably in the Circuit of +Britain, flew doggedly against Lieut. Conneau from stage to stage. +Vedrines, who had not had the advantages in tuition that had been +enjoyed by Lieut. Conneau, nor his grounding in technique, was +nevertheless a born aviator; a man of a natural and exceptional skill. +In energy, courage, and determination he was unexcelled; but such +qualities, though of extreme value in a long and trying contest, were +marred by an impetuosity and an excitability which Vedrines could not +master, and which more than once cost him dear. He had not, besides, +as was shown in the Circuit of Britain, that skill in steering by map +and compass which aided Lieut. Conneau so greatly in all his flying. + +A personality of unusual interest was that of the late Mr. S. F. +Cody--a man of a great though untutored imagination, and of an +extraordinary and ceaseless energy. A big man, and one whom it might +be thought would have been clumsy in the handling of an aeroplane, he +piloted the biplanes of his own construction with a remarkable skill. +He flew no other, of course, and this was greatly to his advantage in +actual manipulation. The great pilots who have excelled--one may +instance again Lieut. Conneau--have concentrated their attention as a +rule on one type of machine, learning all there is to be learned about +this particular craft, and being prepared in consequence, through +their knowledge both of its capacities and weaknesses, for any +contingency that may arise in flight. Another instance of such +specialisation was provided by Mr. Gustave Hamel. M. Bleriot--an +admirable judge in this respect--singled out Mr. Hamel, while this +young man was learning to fly in France, as an aviator of quite +unusual promise; and his prediction was, of course, more than +fulfilled. Devoting himself exclusively to the monoplane, Mr. Hamel +became a pilot whose perfection of control, very wonderful to witness, +was marked strongly by his own individuality. He had beautiful +"hands"--a precision and delicacy on the controls which marked his +flying from that of all others; while his judgment of speed and +distance, which was remarkable, represented natural abilities which +had been improved and strengthened by his constant flying. + + + + +CHAPTER X + +CROSS-COUNTRY FLYING + + +When a pupil has finished his flying school tests, and has received +his certificate from the Royal Aero Club, he is in a stage of +proficiency which means that he has learned to control an aeroplane +when above an aerodrome and in conditions that are favourable, and +that he may be relied on to make no elementary mistakes. But as to +cross-country flying, with its greater hazards, he is still a novice, +with everything to learn. And so it is to flights from point to point, +generally between neighbouring aerodromes, that he next devotes +himself. + +Aviators have been commiserated with, often, on what is thought to be +the monotony of a cross-country flight. The pilot, raised to a lonely +height above the earth, is pictured sitting more or less inertly in +his seat, with nothing to do but retain his control on the levers, and +look out occasionally so as to keep upon his course. But the beginner, +when he first attempts cross-country flying, will have an impression +not of inactivity, but of the necessity to be constantly on the alert. +He will be engrossed completely by the manipulation of his machine, +with no time to sit in idle speculation, or to analyse his feelings as +the country passes away below. + +When preliminaries on the ground have been gone through, and the pilot +is in the air, there will first be a need to gain a height of several +thousand feet. Altitude is essential in cross-country flying. The +higher a pilot flies, within reason and having regard to the state of +the atmosphere, the better chance will he have of making a safe +landing, should his motor fail suddenly and force him to descend. So +the first concern is climbing--and in doing so the pilot must remember +the teachings of his instructor, and not force his craft on too steep +or rapid an ascent. He may prefer, in his early flights, to remain +above the aerodrome while he is gaining altitude, watching his height +recorder from moment to moment so as to note his progress upward. He +will be occupied also with his engine, listening to its rhythm of +sound, and keeping an eye on the indicator that tells him how many +revolutions per minute the motor is actually making, and which will +warn him at once should it begin to fail. + +Granted his motor is running well, a pilot should soon gain altitude. +Then, assuming the air is clear--as it should be on his early +flights--he will note some landmark, away on the line of his flight, +and set off across country towards it. Fixed conveniently in front of +him will be a map, of a kind devised specially for the use of +aviators. A pilot's view, as he flies high above the ground, is +bird-like. Landmarks fail to attract his attention, at this altitude, +which would be clearly seen if he were on the ground. Hills, for +example, unless they are high, are so dwarfed as he looks down on them +that they scarcely catch his eye. What is done, by the designer of air +maps, is to accentuate such details of a landscape as will prove +conspicuous when seen from above. A river, or an expanse of water, is +clearly seen; so also are railways and main roads; while factory +chimneys, and large buildings which stand alone, may be identified +from a distance when a pilot is in flight. So on an airman's map, made +to stand out by various colourings in a way that catches the eye, are +railways, roads, rivers, lakes and woods, with here and there a +factory chimney or a church, should these be in a position rendering +them visible easily from the air. That such maps should be bold in +their design, and free from a mass of small details, is very necessary +when it is remembered that the aviator, passing through the air at +high speeds, has no time for a leisurely inspection of his map. + +With a good map, and aided when necessary by the compass that is +placed in a position so that he can see it readily, a pilot has no +difficulty as a rule, once he has acquired the facility that comes +with practice, in steering accurately from point to point, even when +on a long flight. On a favourable day, when the land below is clearly +visible, he will glance ahead, or to one side, and after observing +some landmark, look on his map to identify the position he has just +seen. Under such conditions steering is easy, and the compass plays a +subsidiary part. But it may happen that, while he is on a long flight +and at a considerable altitude, the earth below may be obscured by +clouds, or a low-lying mist, and all landmarks vanish from his view. +Sometimes too, he may find himself flying through mist and cloud, with +all signs of the earth gone from below. Whereupon, robbed for awhile +of any direct guidance, he must fly by aid of his map and compass, +holding his machine on its compass course, and noting carefully the +needle of his height-recorder, so that he is sure of maintaining +altitude. A risk exists under such conditions, when there is no +visible object by which to judge a course, that an airman may make +leeway, unconsciously, under the pressure of a side-wind; and so he +must be ready to note carefully, immediately that a view of the earth +is vouchsafed him, whether he has actually been making leeway, either +to one hand or the other, even while the bow of his machine has been +held on its compass course. There is a risk also, when a pilot is +flying in fog or at night, that, having no visible horizon from which +to gauge the inclination of his craft, it may assume gradually some +abnormal angle, without his own sensations telling him what is taking +place. The craft may, for the sake of illustration, incline sideways, +imperceptibly to the pilot, till it begins to side-slip. But science +can meet this danger by providing inclinometers, fitted within the +hull so that the aviator can see them easily; and by means of these +instruments, which are illuminated at night, it is possible for a +pilot to tell, merely by a glance, at what angle his machine is moving +forward through the air--whether it is up or down at the bow, or +whether its position laterally is normal. + +The beginner, on his first cross-country flight, need not be troubled +by such intricacies. He is flying, one assumes, on a fine day, with +the land spread clearly below him. So as he moves through the air, +listening always to the hum of his motor, he need have no fear, +granted that his observation is ordinarily keen, of losing his way. + +Naturally, being a novice, he will feel the responsibility of his +position. His eyes will rove constantly from one instrument to another; +as indeed, from habit, do those of a practised flyer. He will glance +at the height recorder; then at the engine revolution indicator; then +at the dial which tells him what his speed is relative to the air. +There is a dial, also, showing the pressure in his petrol-tank; while +there will be a clock on his dashboard at which he will glance +occasionally, after he has marked some position away on the land below, +so as to determine what progress he is making from the point of view +of time. + +Besides these preoccupations, and the ceaseless even if almost +unconscious attention that he must pay to his engine, there is the +need to bear constantly in his mind's eye the lie of the land. Should +his motor fail suddenly, or something happen which necessitates an +immediate descent, it is imperative that he should be able, without +delay, to choose from the ground that is visible below him some field +or open space that will provide a safe landing-point. And this is +easier said than done. The earth, when viewed by a airman who looks +down almost directly upon it, is apt to be deceptive as to its +contour. A field that is selected say, from a height of several +thousand feet, may not prove--as the aviator nears it in his glide--to +be at all the haven he imagined it. More than once, seeking to alight +on a field which appeared to him, as he was high above it, to be level +as a billiard table, a pilot has found, when it is too late, that the +ground has sloped so steeply that his machine, after landing, has run +on downhill and ended by crashing into a fence or ditch. + +It is very necessary for an airman to learn to judge, by its +appearance, the difference between an expanse, say, of pasture land, +or a field which is in green corn or standing hay. It has happened +often that a pilot, descending after engine failure towards what he +has reckoned a grass field, has discovered--when too low to change his +landing-point--that his pasture land is actually a field of green corn; +and a landing under such conditions, with the corn binding on the +running-gear of the machine, may end in the aircraft coming to an +abrupt halt, and then pitching forward on its nose; with a broken +propeller and perhaps other damages in consequence. + +In choosing a landing ground, as in other problems that face the +novice in cross-country flying, experience will prove his safeguard. +He will learn for instance that cattle or sheep, if they can be +discerned below in a field, go to show that this field is one of +pasture and not of crops. If no cattle are to be seen in a field, and +the aviator is doubtful about it, and yet if it happens to be the only +suitable one he can locate, then he may look closely at the gateway +which leads into the field. If, in this gateway, he can detect such +scars or markings on the ground as are caused by the feet of cattle as +they walk daily in and out, he may feel satisfied the field is one of +pasture. + +When cattle or sheep are seen standing in a field so that they face in +the same direction, this may suggest either the existence of a slope, +or the presence of a strong ground wind; while a stream or brook at +the edge of a stretch of open land, or a belt of woods, may suggest a +sloping of the ground. + +It is amusing for a pilot--or it was so, rather, in the days when few +aeroplanes were in existence--to note the astonishment which his +descent, made quite unexpectedly perhaps in some quiet and rural +country, will occasion amongst the inhabitants. Sometimes, under the +stress of such an excitement, people appear to lose for the time being +their power of coherent speech. A pilot in a cross-country contest, +not being sure whether he was on his right course, decided to make a +landing and ask his way. He noticed, after a while, the figure of a +man in a field below. Planing down, and alighting in the field, he +shouted questions to this man, switching his engine off and on, while +he did so, in order that his words, and those of the other, might be +audible. But the man in the field, demoralised by the advent of this +being from the air, and gazing at him and his machine with an +expression of blank amazement, was unequal to the task of giving even +the simplest directions. He waved his arms, it is true, but no words +that could be understood issued from his lips. The pilot repeated his +questions, but it was no good. The man waved and mouthed, and rolled +his eyes, but when he tried to speak intelligibly he could not. So the +aviator, loath to waste further time, accelerated his engine again and +continued his flight. + +As a contrast to this, there was the experience of a pilot who, after +a long flight from England to the Continent, landed at length near a +small village. In the next field to that in which he alighted there +was a labourer, digging patiently. The aviator expected that this man +would fling down his spade in excitement, and run wildly towards the +aeroplane. But such was not the case. This labourer, a marvel of +placidity and unconcern, merely raised his head slowly and looked +across at the aircraft, and then went on with his digging. + +In his first cross-country flights, being concerned chiefly as to the +manipulation of his machine, and having so many things to think of, +the novice may feel tired after even a short journey by air. His chief +sensation, as he switches off his engine to descend towards the +aerodrome he sees below him, will be one of relief that he has escaped +engine failure, and that he has been able to find his way from point +to point. The joy of flight, of passing swiftly thousands of feet +above the earth, will have made but a small impression upon him--at +any rate consciously. It will not be until the handling of his machine +becomes less laborious, and he has time to accustom himself to his +unique view-point, and the strangeness and beauty of the scene below +him, that the novice will realise some of the fascinations of aerial +travel; fascinations that it is difficult to describe. The sensation +of having thrown off the bonds of earth-bound folk; of soaring above +the noise and dust of highways; of being free from the obstructions of +traffic; of sweeping forward smoothly, swiftly, and serenely--the land +stretching below in an ever-changing panorama, with the drone of the +motor in one's ears, and a wine-like exhilaration in the rush of the +air: these, and others more obscure, are among the sensations of +cross-country flying. + + + + +CHAPTER XI + +AVIATION AS A PROFESSION + + +Young men, and parents on their behalf, are seeking always some +profession which will yield an adequate return for the enthusiasm +which youth lavishes upon it. Too often, though, at any rate in the +past, this search for a man's work in life has been narrowed into ruts; +conducted on certain set lines which, though they have found +employment for the beginner, have given him no scope for that +enthusiasm with which he will attack the first tasks presented him. +Aviation, till the coming of the war, was looked at askance by parents +who had sons on their hands. Apart from the risks of flying, which +appeared to them ceaseless and terrible, the actual industry of +building aeroplanes, regarded as an industry, seemed so haphazard and +objectless an affair--so much like playing at work--that they +discouraged any wish that a youth might show to enter it. Many people, +these people of intelligence, regarded the building and flying of +aeroplanes as being no more than a passing phase, and a regrettable +one, which it was hoped men would soon abandon, and turn their +attention to tasks more serious and profitable. But that was before +aircraft had proved their value as instruments of war. Now it is known +that aeroplanes have the power, granted they are supplied in +sufficient numbers, of altering the tenor of a great campaign, both by +land and sea; and that in any future war of nations, should one come, +a battle between the hostile flying fleets, fought to determine the +command of the air, will determine also, to a very large extent, the +fortunes of armies on the land and navies on the sea. It is clear +indeed that, for any great nation that strives to maintain its place, +a powerful air fleet has become a necessity; while for Britain, an +island no longer from the military point of view, seeing that we must +face seriously the question of invasions by air, there is a vital need +to strive for command of the air, as we now hold command of the sea. + +The building up of our air fleet will be an arduous task, needing men, +money, and time; but without it we cannot be secure. Therefore the +work must be faced, the men and the money forthcoming. Aviation, as an +industry, must prepare for years of strenuous work. A great air +service must be created. Machines must be designed and built in +thousands instead of hundreds, and men trained to fly them. Nor is +this all. The aeroplane, though it has such significance as a weapon +of war, is destined primarily and eventually to be an instrument of +peace; a machine for the transport by air of passengers, mails, and +goods, at speeds greater than will be feasible by land or water; and a +craft also for the use of travellers and tourists, enabling them to +make such journeys, with ease and pleasure, as will again prove +impossible by land or sea. So aviation has two immense tasks ahead of +it, instead of one. Not only must it create, by years of patient and +determined effort, a flying service which will command the air, but +craft must be designed and built also for the mail, goods, and +passenger-carrying services, and to meet the needs of the aerial +tourist. + +This new task that has been given to men, that of designing, building, +and piloting aircraft, is still on the eve of its expansion. The +opportunities it offers to young men--to men whose minds are quick to +grasp a new idea and who have the powers of initiative and +decision--are almost boundless. Flying will, as it develops, +revolutionise the world's system of transport; while the developments +even of the immediate future promise to be so great, and so important, +that it is not easy to visualise them. But this at least is clear: now +is the time for newcomers to enter the world of flight. Aviation needs +men, is calling aloud for men; and they are needed for many kinds of +work. First, of course, should be placed the flying services, naval +and military, to join which during the war men have come forward so +admirably. But it will need, in the expansion that must follow this +campaign, a steady and a ceaseless growth in numbers, not only of the +men who handle machines in flight, but of those who serve the +squadrons by their work on land, and who build up the organisation +which is vital to success. + +For skilled aviators, other than those who join the services, there is +scope for remunerative work. A constant demand exists for men who will +test and fly in their trials the new machines that are built by +manufacturers; for men who will fly, in public exhibitions, the craft +that are used at the various aerodromes; and for men who will qualify +as instructors, and join the flying schools which are already in +existence, or in process of formation. In countries oversea, too, +there is the definite promise that aircraft will be needed, not only +for survey work over wide tracts of land, and for maintaining +communication and bearing mails over districts where land travel is +difficult, but also for exploration; and this again means that pilots +will be required. New aerodromes must come into existence also; not +only to act as alighting points for touring craft, but to provide +grounds for the training of pupils; and at these aerodromes pilots +will be needed. + +Of other opportunities, apart from the piloting of aircraft, there are +many--though it is desirable for a man to learn to fly, and obtain his +certificate of proficiency, even if afterwards he does not intend +continuing as a pilot. The practical experience he gains, while +learning actually to handle an aircraft in flight, will prove +extremely useful to him subsequently, even though the task he +undertakes is one that keeps him on the ground. He may qualify, for +instance, for a post in a aeroplane factory as a designer or +draughtsman; or he may specialise in aero-motors, and seek a post in +the engine-shops. At the aerodromes, too, there are openings which +present themselves; as, for example, in the management of a flying +school. + +It has been shown that the public will go in thousands to see sporting +contests with aeroplanes, and here is another field for organisation +and effort; while there is a constant demand for men of ability in the +executive departments of firms which are established already in the +industry, and are expanding steadily, or in those which are now being +formed, or are joining aviation from day to day. + +The industry is at last on a footing that is practical and sound. It +presents a new field for effort, and one that is unexploited; while +for the man who enters it--and this should be the attraction for +youth--there are occupations as fascinating as one's imagination could +depict. But one thing must be understood clearly. Flying is, of exact +sciences, surely the most exact. The man who is only half-trained, who +is more or less slovenly in his work, who will not bend his whole +energies to his task, will find no place in this new industry. A young +man is wasting his time, if, after deciding to enter aviation, he +acquires knowledge that is no more than haphazard. He who contemplates +aviation as a profession must set himself the task of learning all +there is to be learned, and in the right way. + +Individual opportunities and circumstances will, necessarily, play so +large a part in the steps taken by a young man--or by his parents on +his behalf--to launch him on a career in aviation that it is +impossible, here, to do more than generalise. Certainly, as we have +said, it is an excellent preliminary to learn to fly; and it may be +stated also that it is now possible to place, with aviation companies +of repute, premium pupils who will undergo instruction extending over +a period of three years. A youth may, also, gain his knowledge of the +industry by becoming an indentured apprentice. + +One may say, as a conclusion to this chapter, that a great, new, and +potential industry is springing up in our midst, one which will prove +to be equally if not more important and far-reaching than the British +shipbuilding industry, and one which will employ thousands of skilled +engineers and artisans. Ships are limited to one element, the water, +which has very definite boundaries. Aircraft, too, are limited to one +element, the air; but this element has no boundaries so far as the +earth is concerned, and aircraft will be navigable to any and every +part of the globe. + + + + +CHAPTER XII + +THE FUTURE OF FLIGHT + + +It is a hopeful augury, to those concerned with aviation, that public +interest in flying should not only be keen, but should be growing. In +the early days, even when aeroplanes were so great a novelty, it was +difficult to induce people in any numbers to witness a flying display. +The first meetings, though they were organised with enthusiasm, ended +as a rule with a heavy financial loss; and this fact of course, when +it became known, had a discouraging influence on those who might, had +these early meetings proved a success, have been willing to finance +aerodromes and the building of machines. But as it was, business men, +who are quick to form conclusions, said that people would never be +induced to pay to see aeroplanes fly. But here they failed to reckon +with the fact that, though public interest in flying has been of very +slow growth, yet at the same time it has been a steady and continuous +growth. From month to month, and from year to year, as aeroplane +constructors and pilots have continued at their tasks, overcoming +technical difficulties and personal risks, the interest of ordinary +people has grown perceptibly. Even before the war--which has done so +much to focus attention on flying--the attitude of scepticism and +apathy had been greatly changed. When the London Aerodrome at Hendon +was established, there were shrewd men in the city, men who are +ordinarily very sound in their conclusions, who declared the public +would never go there in appreciable numbers. How wrong they were, how +little they gauged the change that was taking place in the public mind, +is shown by the fact that, on a popular day at this aerodrome, as +many as 60,000 people have paid for admission. + +In the immediate future, as in the immediate past, aviation will be +concerned largely with the building of naval and military craft. This +will, so to say, be the foundation of its development in other +directions. War for instance, notably in the fitting of craft with +duplicate power-plants, will provide data that is invaluable in the +building of commercial craft, and in machines also for the use of the +tourist. In aerial touring there lies an important field for the +development of aircraft--one which may serve to bridge the gap between +a relatively small, purely pleasure-type machine, and a craft which +has utility in the fields of commerce. The motor-car provides an +enjoyable means of travelling from place to place; but in the +aeroplane, once it is airworthy, reliable, and comfortable, the +tourist has a vehicle which is distinctly more pleasurable and +exhilarating. The day was dawning before the war, and will now be +hastened, when, garaging his aircraft at the London Aerodrome as a +convenient starting-point, an aerial traveller will tour regularly by +air, using his flying machine as he would a motor. Already, dotted +about England, are aerodromes he may use as halting-points on his +flight, and at which he can house his machine and secure the attention +of mechanics; and the number of these grounds should grow rapidly in +the future. + +In the aeroplane for the tourist, for the man who buys a machine and +flies for his own pleasure, it is necessary to combine comfort and +safety. As regards comfort, though much remains to be done in the +perfection of detail, the occupants of a machine are now more studied +than they were in the pioneer days. Then a pilot sat out on a crude +seat, exposed fully to the rush of wind as a machine moved through the +air. Now he is placed within a covered-in hull, a screen to protect +him from the wind. From this stage, as was the case with the motor-car, +rapid progress should be made in a provision of comfort. + +When touring by air under favourable conditions, there should be no +more risk with an aircraft than with a motor-car. One of the most +frequent causes of accident, as we have shown, has been the structural +weakness of a machine. Now, with the experience of the war on which to +draw, and with many clever brains focussed on the development of the +industry, this risk may be regarded as almost non-existent; as +negligible a factor as it is possible to make it, remembering that +aircraft, like other mechanism, have to be built by human hands. + +Another risk, that of engine failure, may, as we have explained, be +eliminated by the use of more than one motor. In the application of +such systems there is still much to be learned; but the obstacles are +not insuperable. One advantage that can be offered the aerial tourist, +reckoning him as a pilot of no more than average skill, who needs all +the aid that science can give him, is that he can obtain a machine +which, owing to its automatic stability, requires merely to be taken +into the air and brought to earth again, and which will practically +fly itself, once it is aloft. + +One of the needs with a touring machine, to which makers must devote +their attention, is that it should be able to leave the ground quickly +in its ascent, and so permit its pilot to rise even from a small +starting ground. And it is equally necessary that, on occasion, a +machine should be able to alight safely, and at a slow speed, in quite +a small field. An aviator who had given up aviation temporarily, after +a long spell of cross-country flying, was asked one day when he was +going to fly again. "I shan't do so," he said, "till I can buy a +machine with which I can alight in my own garden." + +Already there are craft which, provided high speeds are not expected +of them, and they are given ample plane-surface, will alight at quite +a moderate pace; but in the future, by the use of machines which have +the power of increasing or reducing their wing-surfaces while in +flight, it should be possible to descend in a space no larger, say, +than a garden. In the construction of variable-surface machines, +technical problems need to be faced which are unusually difficult. The +theory with such craft is that their sustaining planes, either by a +telescopic system, or by some process of reefing, are built so that +they can be expanded or contracted at the will of the pilot. Thus in +rising, when a machine is required to ascend with a minimum run +forward across the ground, a large area of lifting surface would be +exposed; and at the moment of alighting, also, when it was desired +that a machine should make its contact with the ground at the slowest +possible speed, a maximum of plane surface would be employed. But when +aloft, and in full flight, the pilot would be able if he so desired to +reduce the area of his lifting surface, and so increase materially his +speed. With a machine of this type, when perfected, it should be +possible to rise quickly, and descend slowly, and yet at the same time, +when well aloft, attain a high speed with moderate engine-power. + +The commercial possibilities of aviation are vast and far-reaching: +not for nothing, after centuries of striving, have men conquered the +air. The aeroplane is destined, by the facilities it offers for +communication between nations, to play a vital part in the growth of +civilisation. The construction and perfection of a commercial +aeroplane, a machine which can be used for the transport of passengers, +mails, and goods, represents largely a question of time and of money. +Technical problems still need to be solved. But none of them are +insurmountable. All should be overcome by an expenditure of money and +in the process of time--granted of course that research is directed +upon the right lines. A sufficient amount of money for experimental +work, which in aviation is very costly, was one of the prime +difficulties before the war. Capitalists were chary of aviation; they +had no faith in it. Now, after the work aircraft have done in war, and +with the need to provide the world with air fleets, the industry need +live no longer from hand to mouth. There should be funds available for +experiments with commercial-type aeroplanes. + +As to the factor of time, this depends largely on the facilities that +are obtained by the industry--apart from its work on naval and +military craft--for test work with other machines. But in five years' time, +granted progress continues on the lines now promised, we should +have a service of passenger aeroplanes, each carrying fifty or more +people, flying daily between London, the Midlands, and the North; +while in ten years' time it should be possible to cross the Atlantic, +from London to New York, by means of a regular service of aerial craft. + +The commercial aeroplane, even when perfected, would not be likely to +compete successfully with other means of transit unless it could offer +the advantages of a greater speed. Here, indeed, in the speeds they +will attain, lies the future of aircraft. The air will be our highway +because, in the air, speeds will be reached that are impossible on +land or sea. As civilisation extends--this is of course a +truism--there grows with it a need for speedier travel; and we have +seen land and sea transit striving to meet this demand. But both have +reached, or are rapidly reaching, a limit of speed--a limit imposed by +the need to carry their passengers and goods on a remunerative basis. +On the sea, by burning excessive quantities of coal, it is possible to +add a few knots to the speed of a great liner. But then the problem +becomes one of profit and loss; while with trains--so nearly under +existing conditions have they reached a limit of speed--that a +difficulty is experienced, even on long runs, and under favourable +circumstances, in saving a minute here and there. It is not of course +to be assumed, when the spur of a greater necessity comes, that land +and sea transit will fail altogether to increase their existing +speeds. There is the mono-rail system of land traction, electrically +propelled, which has yet to be tested in a practical way; while on the +sea, perhaps, under pressure of competition, and with an increasing +demand for greater speeds, it may be possible to adapt with advantage, +even on large craft, some principle of the hydroplane. + +But by way of the air, granted even a speeding-up on land and sea, +should go the high-speed traffic of the future. By a greater +efficiency in lifting surfaces and by reductions in the resistance a +craft offers to its own passage through the air; by the provision of +systems which will permit a pilot to reduce plane-area when his +machine has gained altitude and he desires a maximum speed; by the +equipping of craft with motors developing thousands of horse-power for +a very low weight--by such means, and by a general improvement in +design, it should be possible, eventually, to attain flying speeds of +150, 200, and even 250 miles an hour. From London to New York by air +liner, in less than twenty hours; such, for instance, should be an +attainment of the future. + +It seems probable, in the development of the commercial aeroplane, we +shall have machines for touring and for pleasure flights--craft not of +large size but in which efforts are made to obtain a greater +reliability and comfort. Then it appears likely that aircraft may +reach a practical use as carriers of mails and of light express goods; +first of all in localities, and under conditions, which favour +specially an aerial transit. And from this phase we should move to the +passenger-carrying craft; to the days when we shall be able to spend a +week-end in New York, as readily as it has been the habit to do in +Paris; when we shall be able to reach any part of the world in a +journey by air lasting, say, a week or ten days. Then, as a recompense +for the lives that have been lost, and for a conquest that has been so +dearly won, the world will enter upon an age of aerial transit--the +age when frontiers and seas will act as barriers no longer, when +journeys that now last weeks will be reduced to days, and those of +days to hours; when first of all Europe, and then the world, will be +linked by airway. + + +THE END. + + + + +INDEX + + + AERODROMES, their evolution, 14 + + Age, its relation to flying, 11 + + Alighting, operation of, 51 + + + BIPLANES and tuition, the "pusher" type, 16 + + Bleriot, Louis, study of his methods as a pilot, 84 + + + CERTIFICATE of proficiency, tests for, 54 + + Cody, S. F., 90 + + Commercial possibilities of aviation, 107 + + Conneau, Lieut. J. ("Beaumont"), 87 + + Constructional weakness in aeroplanes, risks of, 60 + + Controllability of aeroplanes, problems of, 33 + + Cross-country flying, pupils' first experiences, 92 + + + DUAL-ENGINE machines, 79 + + + ENGINE failure, risks of, 65 + + Enjoyment of learning to fly, 12 + + + FARMAN, Henri, pioneer work as an aviator, 86 + + Fees for tuition, 13 + + First flights, pupil as passenger, 39 + + + HEALTH and flying, 10 + + Human factor in relation to accidents, 71 + + + IMPROVEMENTS in aircraft which spell safety, 76 + + Industry of aviation, its expansion, 100 + + Instructors, qualifications necessary, 15 + + + LATHAM, HUBERT, temperamental study, 86 + + Learning to fly not dangerous, 11 + + + MANUAL dexterity, need of, 12 + + + OPPORTUNITIES for the newcomer in aviation, 101 + + + "ROLLING" (handling a machine on the ground), 43 + + + SCHOOL aeroplanes, types of, 16 + ---- aeroplanes, need for ample supply, 15 + ---- biplane, its controls, 34 + + Schools, modern, their conveniences, 18 + + Sensations of flight, 41 + + Speed in its relation to flying, 31 + + Speed, promise of the future, 109 + + Straight flights, 44 + + Sustaining planes, their operation, 32 + + + TEMPERAMENT, the ideal for flying, 22 + + Time required in learning to fly, 19 + + Touring by air, 105 + + Turning in the air, 46 + + + VEDRINES, Jules, his piloting, 90 + + Vol-plané, the, 48 + + + WEATHER, its effect on tuition, 38 + + Wind fluctuation, dangers of, 62 + ---- flying, 80 + + Wrights, Wilbur and Orville, 82 + + + + +BIBLIOGRAPHY + + +_Some books selected as being likely to appeal to a man, without +technical knowledge, who contemplates learning to fly._ + +"THE AIRMAN," by CAPTAIN C. MELLOR, R.E. Published by Mr. John Lane, +the Bodley Head, London. (3s. 6d.) + +Describes the author's experiences, in France, while obtaining a +brevet on a Maurice Farman biplane. + +"THE ESSAYS OF AN AVIATOR." Obtainable from "Aeronautics," 170, Fleet +Street, London, E.C. (2s. 6d.) + +A series of admirable papers, written by a pilot and from a pilot's +point of view. + +"THE AERONAUTICAL CLASSICS." A series of booklets issued at 1s. each +by the Aeronautical Society, 11, Adam Street, Adelphi, London, W.C. + +Describe authoritatively, and very interestingly, the work of great +pioneers. + +"FLIGHT WITHOUT FORMULÆ," by COMMANDANT DUCHENE, of the French Génie +(translated from the French by John H. Ledeboer). Published by +Longmans, Green & Co., 39, Paternoster Row, E.C. (7s. 6d.) + +Instructive discussions, clearly expressed, on the mechanics of the +aeroplane. + +"PRINCIPLES OF FLIGHT," by A. E. BERRIMAN. Obtainable from "Flight" +Offices, St. Martin's Lane, London, W.C. (2s.) + +"AERO ENGINES," by G. A. BURLS. Published by Charles Griffen & Co., 12, +Exeter Street, Strand, London, W.C. (8s. 6d.). + + * * * * * + +AUTHORS' NOTE.--The above list does not, of course, pretend to +be in any way complete. It is designed merely to act as a +suggestion for the novice.--C. G.-W., H. H. + + * * * * * + +THE LONDON AND NORWICH PRESS LIMITED, LONDON AND NORWICH, ENGLAND + + + + + +End of the Project Gutenberg EBook of Learning to Fly, by +Claude Grahame-White and Harry Harper + +*** END OF THIS PROJECT GUTENBERG EBOOK LEARNING TO FLY *** + +***** This file should be named 27557-8.txt or 27557-8.zip ***** +This and all associated files of various formats will be found in: + https://www.gutenberg.org/2/7/5/5/27557/ + +Produced by the Online Distributed Proofreading Team +at https://www.pgdp.net (This file was produced from +images generously made available by The Internet +Archive/American Libraries.) + + +Updated editions will replace the previous one--the old editions +will be renamed. + +Creating the works from public domain print editions means that no +one owns a United States copyright in these works, so the Foundation +(and you!) can copy and distribute it in the United States without +permission and without paying copyright royalties. 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You may copy it, give it away or +re-use it under the terms of the Project Gutenberg License included +with this eBook or online at www.gutenberg.org + + +Title: Learning to Fly + A Practical Manual for Beginners + +Author: Claude Grahame-White + Harry Harper + +Release Date: December 18, 2008 [EBook #27557] + +Language: English + +Character set encoding: ISO-8859-1 + +*** START OF THIS PROJECT GUTENBERG EBOOK LEARNING TO FLY *** + + + + +Produced by the Online Distributed Proofreading Team +at https://www.pgdp.net (This file was produced from +images generously made available by The Internet +Archive/American Libraries.) + + + + + + +</pre> + + +<p class="tn">Transcriber's note:<br> +Author's Note, Index and Bibliography have been added to +the table of contents for this ebook.</p> + + +<h2>LEARNING TO FLY</h2> + +<p class="illustration"><a name="frontispiece" id="frontispiece"></a> +<img src="images/i002.jpg" alt="A SCHOOL MACHINE WELL ALOFT." width="500" height="291"></p> +<p class="caption"><i>Photo by Topical Press Agency.</i> +<br>A SCHOOL MACHINE WELL ALOFT.</p> + + +<hr class="tiny"> + +<h1>LEARNING TO FLY</h1> + +<h5>A PRACTICAL MANUAL FOR<br> +BEGINNERS</h5> + +<h6>BY</h6> +<h3>CLAUDE GRAHAME-WHITE</h3> +<h6>AND</h6> +<h3>HARRY HARPER</h3> + +<h4><i>FULLY ILLUSTRATED</i></h4> + +<h5>NEW YORK<br> +THE MACMILLAN COMPANY</h5> + + +<h5>PRINTED IN ENGLAND.</h5> + + +<h2>CONTENTS</h2> + +<table class="toc" summary="table of contents"> + <tbody> + <tr> + <td><a href="#note"> + <span class="smallcaps">Authors' Note</span></a></td> + <td class="number">7</td> + </tr> + <tr> + <td><a href="#ch1"> + <span class="smallcaps">Theories of Tuition</span></a></td> + <td class="number">9</td> + </tr> + <tr> + <td><a href="#ch2"> + <span class="smallcaps">Temperament and the Airman</span></a></td> + <td class="number">20</td> + </tr> + <tr> + <td><a href="#ch3"> + <span class="smallcaps">First Experiences with an Aeroplane<br><small>(as described by mr. grahame-white)</small></span></a></td> + <td class="number">24</td> + </tr> + <tr> + <td><a href="#ch4"> + <span class="smallcaps">The Controlling of Latest-Type Craft</span></a></td> + <td class="number">31</td> + </tr> + <tr> + <td><a href="#ch5"> + <span class="smallcaps">The Stages of Tuition</span></a></td> + <td class="number">38</td> + </tr> + <tr> + <td><a href="#ch6"> + <span class="smallcaps">The Test Flights</span></a></td> + <td class="number">53</td> + </tr> + <tr> + <td><a href="#ch7"> + <span class="smallcaps">Perils of the Air</span></a></td> + <td class="number">56</td> + </tr> + <tr> + <td><a href="#ch8"> + <span class="smallcaps">Factors that Make for Safety</span></a></td> + <td class="number">76</td> + </tr> + <tr> + <td><a href="#ch9"> + <span class="smallcaps">A Study of the Methods of Great Pilots</span></a></td> + <td class="number">82</td> + </tr> + <tr> + <td><a href="#ch10"> + <span class="smallcaps">Cross-Country Flying</span></a></td> + <td class="number">92</td> + </tr> + <tr> + <td><a href="#ch11"> + <span class="smallcaps">Aviation as a Profession</span></a></td> + <td class="number">99</td> + </tr> + <tr> + <td><a href="#ch12"> + <span class="smallcaps">The Future of Flight</span></a></td> + <td class="number">104</td> + </tr> + <tr> + <td><a href="#index"> + <span class="smallcaps">Index</span></a></td> + <td class="number">111</td> + </tr> + <tr> + <td><a href="#biblio"> + <span class="smallcaps">Bibliography</span></a></td> + <td class="number">112</td> + </tr> +</tbody></table> + + +<span class="pagenum"><a name="Page_6" id="Page_6">6</a></span> + +<h2>ILLUSTRATIONS</h2> + +<table class="toc" summary="table of illustrations"> + <tbody> + <tr> + <td><a href="#frontispiece">A SCHOOL MACHINE WELL ALOFT</a></td> + <td style="text-align: right;"><i>Frontispiece</i></td> + </tr> + <tr> + <td></td> + <td style="text-align: right;">face page</td> + </tr> + <tr> + <td><a href="#facing_page_34">GRAHAME-WHITE SCHOOL BIPLANE</a></td> + <td style="text-align: right;">34</td> + </tr> + <tr> + <td><a href="#facing_page_36">THE CONTROLS OF A SCHOOL BIPLANE</a></td> + <td style="text-align: right;">36</td> + </tr> + <tr> + <td><a href="#facing_page_38">REAR VIEW OF A SCHOOL BIPLANE</a></td> + <td style="text-align: right;">38</td> + </tr> + <tr> + <td><a href="#facing_page_40">POWER-PLANT OF A SCHOOL BIPLANE</a></td> + <td style="text-align: right;">40</td> + </tr> + <tr> + <td><a href="#facing_page_42">MOTOR AND OTHER GEAR—ANOTHER VIEW</a></td> + <td style="text-align: right;">42</td> + </tr> + <tr> + <td><a href="#facing_page_44">PUPIL AND INSTRUCTOR READY FOR A FLIGHT</a></td> + <td style="text-align: right;">44</td> + </tr> + <tr> + <td><a href="#facing_page_46">PUPIL AND INSTRUCTOR IN FLIGHT (1)</a></td> + <td style="text-align: right;">46</td> + </tr> + <tr> + <td><a href="#facing_page_48">PUPIL AND INSTRUCTOR IN FLIGHT (2)</a></td> + <td style="text-align: right;">48</td> + </tr> + <tr> + <td><a href="#facing_page_50">PUPIL AND INSTRUCTOR IN FLIGHT (3)</a></td> + <td style="text-align: right;">50</td> + </tr> + </tbody> +</table> + + +<hr class="mid"> + +<div class="note"><span class="smallcaps">Authors' Note.</span>—The +photographs to illustrate this book, as set forth above, were taken at +the Grahame-White Flying School, the London Aerodrome, Hendon, by +operators of the Topical Press Agency, 10 and 11, Red Lion Court, +Fleet Street, London, E.C.</div> + +<hr class="mid"> + +<span class="pagenum"><a name="Page_7" id="Page_7">7</a></span> + +<h2><a name="note" id="note"></a>AUTHORS' NOTE</h2> + +<p><span class="smallcaps">This</span> book is written for the novice—and for the novice who is +completely a novice. We have assumed, in writing it, that it will come +into the hands of men who, having determined to enter this great and +growing industry of aviation, and having decided wisely to learn to +fly as their preliminary step, feel they would like to gain +beforehand—before, that is to say, they take the plunge of selecting +and joining a flying school—all that can be imparted non-technically, +and in such a brief manual as this, not only as to the stages of +tuition and the tests to be undergone, but also in regard to such +general questions as, having once turned their thoughts towards flying, +they take a sudden and a very active interest.</p> + +<p>It has been our aim, bearing in mind this first and somewhat restless +interest, to cover a wide rather than a restricted field; and this +being so, and remembering also the limitations of space, we cannot +pretend—and do not for a moment wish it to be assumed that we +pretend—to cover exhaustively the various topics we discuss. Our +endeavour, in the pages at our disposal, has not been to satisfy +completely this first curiosity of the novice, but rather to stimulate +and strengthen it, and guide it, so to say, on lines which will lead +to a fuller and more detailed research.</p> + +<p>It is from this point of view, as a short yet comprehensive +introduction, and particularly as an aid to the beginner in his choice +of a school, and in what may be called his mental preparation for the +stages of his tuition, that we desire our book to be regarded.</p> + +<p class="r">C. G.-W.<br> +H. H.</p> + +<p class="l"><i>April</i>, 1916.</p> + +<h2><a name="ch1" id="ch1"></a>CHAPTER I</h2><span class="pagenum"><a name="Page_9" id="Page_9">9</a></span> + +<h3>THEORIES OF TUITION</h3> + +<p><span class="smallcaps">Only</span> eight years ago, in 1908, it was declared impossible for one man +to teach another to fly. Those few men who had risen from the ground +in aeroplanes, notably the Wright brothers, were held to be endowed by +nature in some very peculiar way; to be men who possessed some +remarkable and hitherto unexplained sense of equilibrium. That these +men would be able to take other men—ordinary members of the human +race—and teach them in their turn to navigate the air, was a +suggestion that was ridiculed. But Wilbur Wright, after a series of +brilliant flights, began actually to instruct his first pupils; doing +so with the same care and precision, and the same success, that had +characterised all his pioneer work. And these first men who were +taught to fly on strange machines—as apart from the pioneers who had +taught themselves to fly with craft of their own construction—made +progress which confounded the sceptics. They went in easy and +leisurely fashion from stage to stage, and learned to become aviators +without difficulty, and mainly without accident.</p> + +<p>After this, increasing in numbers from two or three to a dozen, and +from a dozen to fifty and then a hundred, the army of airmen grew +until it could be totalled in thousands. Instead of being haphazard, +the teaching of men to fly became a business. Flying schools were<span class="pagenum"><a name="Page_10" id="Page_10">10</a></span> +established; courses of tuition were arranged; certain pilots +specialised in the work of instruction. It was shown beyond doubt that, +instead of its being necessary for an aviator to be a species of +acrobat, any average man could learn to fly.</p> + +<p>Certainly a man who intends to fly should be constitutionally sound; +this point is important. When in an aeroplane, one passes very quickly +through the air, and such rapid movement—and also the effect of +varying altitudes—entail a certain physical strain. A man with a weak +heart might find himself affected adversely by flying; while one whose +lungs were not sound might find that his breathing was impeded +seriously by a swift passage through the air. More than one fatality, +doubtful as to its exact cause, has been attributed to the collapse of +a pilot who was not organically sound, or who ascended when in poor +health. And here again is an important point. No man, even a normally +healthy man, should attempt to pilot a machine in flight when he is +feeling unwell. In such cases the strain of flying, and the effect of +the swift motion through the air, may cause a temporary collapse; and +in the air, when a man is alone in a machine, any slight attack of +faintness may be sufficient to bring about a fatality.</p> + +<p>A fair judgment of speed, and an eye for distance, are very helpful to +the man who would learn to fly, and it is here that a man who has +motored a good deal, driving his own car, is at advantage at first +over one who has not. But otherwise, and writing generally, any man of +average quickness of movement, of average agility, can learn without +difficulty to control an aeroplane in flight. It is wrong to imagine +that exceptional men are required. An unusual facility, of course, +marks the expert pilot; but we are writing of men who would attain an +average skill.</p> + +<p>There has been discussion as to the age at which a<span class="pagenum"><a name="Page_11" id="Page_11">11</a></span> man should learn to +fly, or as to the introduction of age limits generally in the piloting +of aircraft. But this introduces a difficult question; one which +depends so entirely on the individual, and regarding which we need the +data that will be provided by further experience. Some men retain from +year to year, and to a remarkable extent, the faculties that are +necessary; others lose them rapidly. The late Mr. S. F. Cody was +flying constantly, and with a very conspicuous skill, at an age when +he might have been thought unfit. But then he was a man of a rare +vitality and a great enthusiasm—a man who, though he flew so often, +declared that each of his flights was an "adventure." Taking men in +the average one may say this: the younger a man is, when he learns to +fly, the better for him. Much depends, naturally, on the sort of +flying he intends to do after he has attained proficiency. If he is +going to fly in war, or under conditions that impose a heavy strain, +then he must be a young man. But if he intends to fly for his own +pleasure, and under favourable conditions, then this factor of age +loses much of its importance, and it is only necessary that a man +should retain say, an ordinary activity, and a normal quickness of +vision and of judgment.</p> + +<p>Flying is not difficult. It is in a sense too easy, and this is just +where its hidden danger lies. If a pupil is carefully taught, and +flies at first only when the weather conditions are suitable, he will +find it surprisingly easy to pilot an aeroplane. That it is not +dangerous to learn to fly is proved daily. Though hundreds and +thousands of pupils have now passed through the schools, anything in +the nature of a serious accident is very rarely chronicled. This +immunity from accident is due largely to the care and experience of +instructors, and also to the fact that all pupils pass through a very +carefully graduated tuition, and that no hazardous flights are allowed; +while another and an<span class="pagenum"><a name="Page_12" id="Page_12">12</a></span> important element of safety lies in the fact +that no flying is permitted at the schools unless weather conditions +are favourable. It is now a fair contention that, provided a man +exercises judgment, and ascends only in weather that is reasonably +suitable, there is no more danger in flying an aeroplane than in +driving a motor-car.</p> + +<p>Much depends of course on the dexterity of the pupil, and particularly +on his manual dexterity—on what is known, colloquially, as "hands." +Some men, even after they have been carefully taught, are apt to +remain heavy and clumsy in their control. Others, though, seem to +acquire the right touch almost by instinct; and these are the men who +have in them the making of good pilots. Horsemen refer to "hands" when +they speak of a man who rides well; and in flying, if a man is to +handle a machine skilfully, there is need for that same instinctive +delicacy of touch.</p> + +<p>Nowadays, when a pupil joins a well-established flying school, he +finds that everything is made easy and pleasant for him. Most men +enjoy very thoroughly the period of their tuition. A friendly regard +springs up between the pupils and their instructors, and men who have +learned to fly, and are now expert pilots, bear with them very +pleasant reminiscences of their "school" days. But there were times, +and it seems already in the dim and distant past, when learning to fly +was a strange, haphazard, and hardly pleasant experience; though it +had a sporting interest certainly, and offered such prospects of +adventure as commended it to bold spirits who were prepared for +hardship, and had a well-filled purse. The last requirement was very +necessary. In the bad old days, amusing days though they were without +doubt, no fixed charge was made to cover such breakages, or damage to +an aeroplane, as a pupil might be guilty of during his period of +instruction. These items of damage—broken propellers, planes, or<span class="pagenum"><a name="Page_13" id="Page_13">13</a></span> +landing gear—were all entered up very carefully on special bills, and +presented from time to time to the dismayed novice; and a man who was +clumsy or impetuous found learning to fly an expensive affair. There +was a pupil who joined a school soon after Bleriot's crossing of the +Channel by air. It was a monoplane school; and the monoplane, unless a +man is careful and very patient, is not an easy machine to learn to +fly. This beginner was not patient; he was indeed more than usually +impetuous. His landings, in particular, were often abrupt. He broke +propellers, frequently, to say nothing of wings and of alighting gear. +And of all these breakages a note was made. Bills were handed to +him—long and intricate bills, with each item amounting to so many +hundreds of francs. Having a sense of humour, the pupil began to paper +his shed with these formidable bills, allowing them to hang in +festoons around the walls. What it cost him to learn to fly nobody +except himself knew. He paid away certainly, in his bills for +breakages, enough money to buy several aeroplanes.</p> + +<p>This was in the early days, when aviators were few and all flying +schools experimental. To-day a pupil need not concern himself, even if +he does damage a machine. Before beginning his tuition he pays his fee, +one definite sum which covers all contingencies that may arise. It +includes any and all damage that he may do to the aircraft of his +instructors; it covers also any third-party claims that may be made +against him—claims that is to say from any third person who might be +injured in an accident for which he was responsible. This inclusive +fee varies, in schools of repute, from £75 to £100.</p> + +<p>The modern aerodromes, or schools of flight, at which a pupil receives +his tuition, have been evolved rapidly from the humblest of +beginnings. The first flying grounds were, as a rule, nothing more +than open<span class="pagenum"><a name="Page_14" id="Page_14">14</a></span> tracts of land, such as offered a fairly smooth +landing-place and an absence of dangerous wind-gusts. Then, as +aviation developed, pilots came together at these grounds, and sheds +were built to house their craft. And after this, quickly as a rule, an +organisation was built up. Beginning from rough shelters, erected +hastily on the brink of a stretch of open land, there grew row upon +row of neatly-built sheds, with workshops near them in which aircraft +could be constructed or repaired. And from this stage, not content +with the provision made for them by nature, those in control of the +aerodromes began to dig up trees, fill in ditches and hollows, and +smooth away rough contours of the land, so as to obtain a huge, smooth +expanse on which aircraft might alight and manœuvre without accident. +And after this came the building up of fences and entrance gates, the +erection of executive offices and restaurants, the provision of +telephone exchanges and other facilities—the creation in fact of a +modern aerodrome.</p> + +<p>A pupil to-day, if he decides to learn to fly, finds he has an ample +choice in the matter of a school. He may feel indeed that there is +almost an embarrassment of facilities. But there are certain very +definite requirements, in regard to any modern flying school; and if a +novice bears these in mind, and thinks of them carefully when he is +considering what school he shall join, he cannot go far wrong. First +there is the question of the aerodrome on which, and above which, the +pupil will undergo his instruction. This should be of ample size and +of an adequately smooth surface; and it should be so situated, also, +that it is free from wind eddies and gusts, such as are set up by +hills, woods, or contours of the land, and are likely to inconvenience +a novice when he makes his first flights. The best position for an +aerodrome is in a valley, not abrupt but gently sloping. With a flying +ground so placed, shielded well by nature on every hand, it may prove<span class="pagenum"><a name="Page_15" id="Page_15">15</a></span> +sufficiently calm for instruction even on days when there is a gusty +wind blowing across more exposed points; and such a natural advantage +is of importance for a pupil. It may mean that he is obtaining his +tuition from day to day, when other pupils, learning to fly at grounds +less favourably situated, have to remain compulsorily idle, waiting +either for the wind to drop, or to veer to some quarter from which +their aerodrome is sheltered.</p> + +<p>It is very necessary, of course, in the operation of a flying school, +that there should be competent instructors; also a sufficient number +of these to prevent them from being over-taxed, or having more pupils +at any one time than they can handle conveniently. And it is greatly +to the advantage of a pupil if these instructors have been chosen with +an intelligent care. A man may be a capable pilot, and yet not have +the temperament that will suit him for imparting his knowledge to +others. The instructor who, besides being a fine flyer, has the +patience and sympathy of a born teacher, is by no means easy to find. +A school which does find such men, and retains their services, offers +attractions for a pupil which—in any preliminary visit he pays to a +school before joining it—he should look for keenly. And he should +make certain, too, that the school has a staff of skilled and +experienced mechanics.</p> + +<p>Another indispensable feature of a school is a sufficient number of +aeroplanes, machines suited specially for the purposes of tuition, and +maintained at a high efficiency. It has been no uncommon thing—though +here again one is writing of the past—for the total resources of a +school to comprise, say, two machines. Hence a couple of smashes would +put such a school temporarily out of action, and leave the pupils with +nothing to do but kick their heels, and wait until the machines had +been repaired. It is certainly an advantage,<span class="pagenum"><a name="Page_16" id="Page_16">16</a></span> from the pupil's point of +view, if there are well-equipped workshops in connection with the +school he joins; also if the proprietors of his school have an ample +supply of engines. With facilities for repair work immediately at hand, +and with a spare engine ready at once to put in a machine—while one +that has been giving trouble is dealt with in the engine-shop—there +should always be a full complement of craft for the work of +instruction. When workshops are in operation in connection with a +school an opportunity is usually provided, also, for a novice to gain +some knowledge as to the mechanism and working of the aero-motor: and +this of course will be useful to him.</p> + +<p>There has been discussion as to the type of aeroplane on which one +should learn to fly; but in this question, as in that of an age limit +for airmen, it is extremely difficult, besides being unwise, to +attempt to frame a hard-and-fast rule. The monoplane, for instance, is +not an easy machine to learn to fly: it is not easy, that is to say, +compared with certain types of biplane. Yet numbers of pupils have +been taught on monoplanes, and this without accident. There is also a +question whether, among biplanes, it is best to learn on a tractor +machine—one that is to say with the engine in front of the main +planes—or on a "pusher" type of craft; this last mentioned having its +motor behind the planes. Aeroplanes of both types are in use; and it +would be advantageous, of course, for a novice to accustom himself to +handle either. But from the point of view of those who operate large +flying schools, and have to weigh one point against another, and +eliminate so far as possible the elements of risk or difficulty, there +are very distinct advantages in a "pusher" biplane, such as is +illustrated <a href="#facing_page_34">facing page 34</a>. The control of such a machine is simple, +and can be grasped quite readily. It provides the novice, when he is +seated in it, with a clear and unobstructed view of the ground<span class="pagenum"><a name="Page_17" id="Page_17">17</a></span> +immediately in front of and below him; and this, in the early stages +of tuition, is an extremely important point. A craft of such a type, +also, when built specially for instruction, can be given a very strong +alighting gear, and this makes for safety when a pupil is in his first +tests, and may be guilty of an abrupt or rough descent. Again, while +such a school machine as this is engined adequately, it is at the same +time comparatively slow in flight, and has the advantage also that it +will alight at slow speeds. In the air, too, it has a large measure of +stability, and is not too rapid in its response to its controls. It +gives a pupil what is very necessary for him in his first flights, and +that is a certain latitude for error. It is safe to say, indeed, +without being dogmatic, that a "pusher" biplane of the type +illustrated, if constructed specially for school work, offers a pupil +two very clearly marked advantages. These are: (1) A craft which he +can learn to fly quickly; and (2) A machine on which he can pass +through his tuition with the least risk of accident.</p> + +<p>This last-mentioned point is, naturally, one of extreme importance. It +is very necessary, apart from any question of personal injury, that a +pupil should be protected during his tuition from anything in the +nature of a bad smash. A man should start to learn to fly with full +confidence; the more he has the better, provided it is tempered with +caution. And if he can go through his training without accident, and +preserve the steadily growing confidence that his proficiency will +give him, he is on the high road to success as a pilot. But if he +meets with an accident while he is learning—some sudden and quite +unexpected fall—this may have a serious and a permanent influence on +his nerves, even if he escapes without injury. It happened frequently +in the early days that a promising pupil, a man who showed both +confidence and skill,<span class="pagenum"><a name="Page_18" id="Page_18">18</a></span> had his nerve ruined, and all his "dash" taken +from him, by some unlucky accident while he was learning to fly.</p> + +<p>There are certain minor points a pupil should consider when he selects +a flying school—points which have reference mainly to his own comfort +and convenience. He will prefer, for instance, other things being +equal, a school that is near some large town or city, and not buried +away inaccessibly. It is a convenience also, and one that facilitates +instruction, if a pupil can obtain, quite near the aerodrome, rooms +where he can live temporarily while undergoing his instruction, and so +be able to reach the flying ground in a minute or so, whenever and at +any time the weather conditions are favourable. It is a convenience +again if, either on the aerodrome itself or immediately adjacent, +there is a canteen or restaurant where meals and other refreshments +can be obtained. Dressing-rooms and reading rooms, when provided by +the proprietors of a school, add to the comfort of the novice while he +is in attendance on the aerodrome. In winter, particularly, such +facilities are required.</p> + +<p>At a modern school, if it is well conducted, all heroics or +exceptional feats are discouraged. Pupils who want to do wild things +must be sternly repressed, even if only for the common good. The aim +is to train a certain number of pupils, not hastening over the tuition +but giving each man his full and complete course, and to do this with +a minimum of risk. In the early days of flying there were remarkable +exploits at the schools, and some very dangerous ones also. But +nowadays the reckless, happy-go-lucky spirit has gone. Tuition is +based on experience. Each pupil must submit to the routine, and listen +attentively to the instructions given him. There are no short +cuts—not at any rate with safety—in the art of learning to fly.</p> + +<p>The question is asked, often, how long it should take<span class="pagenum"><a name="Page_19" id="Page_19">19</a></span> a man to learn +to fly. It is almost impossible, though, to specify any fixed time. A +very great deal must depend on the weather. A pupil who joins a school +in the summer is more likely, naturally, to complete his tuition +quickly than one who begins in the winter. In periods when there are +high and gusty winds it may be necessary to suspend school work for +several days. But at such times the pupil need not be completely idle. +Lectures on aviation are organised sometimes by the schools; while a +pupil should have opportunities also—as has been mentioned before—of +going into the engine-shop and studying the repair and overhaul of +motors and machines.</p> + +<p>It is on record that a pupil has learned to fly in a day, even in a +few hours; but here the circumstances, and the men, were exceptional. +Such an unusual facility represents one extreme; while as another, it +may happen that a man, owing to a combination of adverse circumstances, +is six months before he gains his certificate of proficiency. It may +be taken, as a rule, that a pupil should set aside say a couple of +months in order to undergo thoroughly, and without any haste, his full +period of tuition. School records prove, as a rule, that the pilots +who learn to fly abnormally quickly are apt to experience an abnormal +number of accidents at a later date, due principally to a lack of real +sound knowledge, which they should have gained during the period of +their tuition. One must learn to walk before one can run, and this +takes time; and the remark applies aptly to aviation. It is very +necessary for the pupil to spend as much time as he can on the +aerodrome. Much is to be learned, by an observant man, apart from the +actual time during which he is engaged with his instructor. If he +watches men who are highly skilled, he may gain many useful hints, +though he himself is on the ground.</p> + +<h2><a name="ch2" id="ch2"></a>CHAPTER II</h2><span class="pagenum"><a name="Page_20" id="Page_20">20</a></span> + +<h3>TEMPERAMENT AND THE AIRMAN</h3> + +<p><span class="smallcaps">As</span> aviation passed from its earliest infancy, and a number of men +began to fly, the temperament of the individual pupil, and the effect +of this temperament on his progress as an aviator, began to reveal +itself. And temperament does play a large part in flying; as it does +in any sport in which a man is given control of a highly sensitive +apparatus, errors of judgment in the handling of which may lead to +disaster. It is not, as a rule, until he has passed through his early +stages of tuition, and has begun to handle an aeroplane alone, and is +beyond the direct control of his instructor, that the temperament of a +pupil really plays its part. Up to this point he is one among many, +conforming to certain rules, and obliged to mould himself to the +routine of the school. But when he begins to fly by himself, and +particularly when he has passed his tests for proficiency, and is +embarking, say, on cross-country flights, then this question of +temperament begins really to affect his flying.</p> + +<p>All men who learn to fly—numbering as they do thousands +nowadays—cannot be endowed specially by nature for their task. There +is indeed a wide latitude for temperamental differences—always +provided that nothing more is required of a man than a certain average +of skill. But if a man is to become a first-class pilot, one +distinctly above the average, then the question of his temperament, as +it influences his flying, is certainly important.</p> + +<p>A rough classification of the pupils at a school—<span class="pagenum"><a name="Page_21" id="Page_21">21</a></span>just a preliminary +sorting of types—shows as a rule the existence of two clearly-marked +temperaments. One is that of the man who is deliberate, whose +temperament guards him from doing anything perfunctorily or in a hurry; +the other is that of a man—a type frequently encountered +nowadays—who while being quick, keen, and intelligent, mars these +good qualities by a temperamental impatience which he finds it +difficult or impossible to control, and which makes him irritable and +restless at any suggestion of delay.</p> + +<p>Now the first of these men need not to be wholly commended, nor the +second entirely condemned. A capacity for deliberation, both in study +and in practice, is very useful when learning to fly. It will protect +a man from many errors, and render his progress sure, though it may be +slow. But something more than deliberation is required in the aviator +of distinction. There must be the vital spark of enterprise, the +temperamental quality which is known as "dash," the quick action of +the mind, in difficulty or peril, that will carry certain men to +safety through many dangers. This imaginative power is possessed as a +rule, though in ways that differ considerably, by the second type of +pupil we have described—the restless, impatient man. But in his case +this quality is, more often than not, marred by his instability; by +the lack of that judgment which is so necessary to counterbalance +imagination, but which is, unfortunately, not so often found.</p> + +<p>A man who decides to become an aviator, and particularly if he intends +to fly professionally, should ask himself quite seriously if his +temperament is likely to aid him, or whether perhaps it may not be a +danger. This point is certainly one of importance, though it cannot be +stated directly or decided in so many words. There is a vital question +at least that the novice should ask himself; and this is whether his +temperament, whatever its general tendency may be, includes a<span class="pagenum"><a name="Page_22" id="Page_22">22</a></span> +sufficient leavening of caution. In the navigation of the air caution +is indispensable. A pupil must remind himself constantly that, though +it appears easy—and is indeed easy—to learn to handle a machine in +flight, no liberties must under any circumstances be taken with the +air. Every instant a man is flying he needs to remember the value of +caution. In the air one cannot afford to make mistakes.</p> + +<p>Naturally there is an ideal temperament for flying; but it is one +which, owing to the combination of qualities that are required, is +very rarely met with. The man who possesses it is gifted with courage, +ambition, "dash," and with a readiness in an emergency that amounts to +intuition. And yet these positive qualities are, in the ideal +temperament, allied to, and tempered by, a strong vein of prudence and +of caution. The pilot has absolute system, method, and thoroughness in +everything he does. The average pupil cannot hope to be so luckily +endowed. But he can study his personality, and seek to repress traits +that may seem harmful.</p> + +<p>There is need in flying for a sound judgment, one that will enable a +man to come to a decision quickly and yet accurately. Things happen +rapidly in the air. It is one of the grim aspects of flying that, just +at a moment when everything appears secure, a sudden disaster may +threaten. So it is of vast importance to a pilot, if he has to fly +regularly, that he should have an instinctive and dependable judgment; +a capacity for deciding quickly and without panic; a capacity, when +several ways present themselves of extricating himself from some +quandary, of being able to choose the right one, and of not having to +think long before doing so. This implies a combination really of +judgment and resource. The man of confidence, the man of resource, is +well endowed for flying. But he must not be over-confident. The +over-confident man is a<span class="pagenum"><a name="Page_23" id="Page_23">23</a></span> menace to himself and to others. It is not a +proper spirit at all in which to approach aviation. We do not know +enough about the navigation of the air to be in the least +over-confident. The spirit, rather, should be one of humility—a +determination to proceed warily, and to make very certain of what +limited knowledge we do possess.</p> + +<p>Two of the worst traits in an aviator are impatience and irritability. +A man who has these temperamental drawbacks in a form which is +strongly marked, and who cannot control them, should not think of +becoming an aviator. The man who is impatient and irritable finds +himself out of harmony with the whole theory of aerial navigation. +There is a long list of "don'ts" in flying; in the handling of one's +machine, in the weather one flies in, in all the feats that one should +attempt and leave alone. A number of details must be memorised, and +must never be forgotten or overlooked, trivial though some of them may +seem. The frame of mind of the man who flies must be alert, yet quiet +and reposeful; he must be clear-headed, not hot-headed. The man who is +in a hurry, who ignores details when he sets out on a flight, is the +man who runs risks and is bound sooner or later to pay the penalty. +The perils of recklessness in flying are very great. The man who +"takes chances," who thinks he can do something when, as a matter of +fact, he has neither sufficient knowledge or experience, runs a very +grave and constant risk. It is the thoughtful, considering frame of +mind, particularly in a pupil, which is the safe one; but this must +not be taken to imply a type of man who lacks power of action. +Initiative, and a quick capacity for action, are most necessary in +aviation. New problems are being faced continually, and the brain +succeeds which is the most active and original.</p> + +<h2><a name="ch3" id="ch3"></a>CHAPTER III</h2><span class="pagenum"><a name="Page_24" id="Page_24">24</a></span> + +<h3>FIRST EXPERIENCES WITH AN AEROPLANE</h3> +<h4 class="chapter">(AS DESCRIBED BY MR. GRAHAME-WHITE)</h4> + +<p><span class="smallcaps">After</span> a period of ballooning, which offers experience for an aviator +in the judging of heights and distances, and in growing accustomed to +the sensation of being in the air, I devoted a good deal of time and +attention—more indeed at the time, and in view of my other +responsibilities, than I could reasonably spare—to a study of the +theory of aeroplane construction, and to the making of models. This +was prior to 1909; Bleriot had not yet flown the Channel in his +monoplane. But when he did I put models aside, and determined to buy +an aeroplane and learn to fly.</p> + +<p>At the end of August, 1909, so that I might inspect the various +aeroplanes that were then available, and they were few enough, I went +to Rheims, in France, and attended the first flying meeting the world +had seen. At the aerodrome I met and talked with the great pioneers: +with Bleriot, fresh from his cross-Channel triumph; with Levavasseur, +the designer of the beautiful but ill-fated Antoinette monoplane, +which had, through engine failure, let Hubert Latham twice into the +Channel during his attempts to make the crossing; with Henry Farman +who, fitting one of the first Gnome motors to a biplane of his own +construction, flew for more than three hours at Rheims, and created a +world's record; and also with M. Voisin, whose biplane was then being +flown by a number of pilots.</p> + +<p>Finally, after careful consideration, I made a contract<span class="pagenum"><a name="Page_25" id="Page_25">25</a></span> with M. +Bleriot to purchase from him, at the end of the meeting, a monoplane +of a type that appeared first at Rheims, and of which there was not +another model then in existence. This machine differed considerably +from the one with which M. Bleriot had flown the Channel. His +cross-Channel monoplane was a single-seated craft fitted with an +air-cooled motor of about 25 h.p. The machine I agreed to buy at +Rheims, and which was known as Bleriot No. XII., would carry two +people, pilot and passenger, while it had an 8-cylinder water-cooled +motor developing 60 h.p.—an exceptional power in those days. The +position of the occupants, as they sat in the machine, differed from +the arrangement in the cross-Channel Bleriot. In the latter the pilot +sat in a hull placed between the planes, and with his head and +shoulders above them. But in this new and larger machine the pilot and +passenger sat in seats which were placed below the planes.</p> + +<p>The craft was, as a matter of fact, an experiment, being built almost +purely for speed; hence its powerful motor. M. Bleriot's idea, in +constructing it, was to have a machine with which he might win the +Gordon-Bennett international speed race at Rheims. But this hope he +did not realise; nor did I obtain delivery of the craft I desired. +Bleriot, flying alone in this big monoplane, started in a speed flight +for the Gordon-Bennett; but he was only a quarter of the way round the +course, on his second lap, when the machine was seen to break suddenly +into flames and crash to the ground from a height of 100 feet. It was +wrecked entirely, but Bleriot was fortunate enough to escape with +nothing worse than burns about the face and hands, and a general +shock. The cause of the accident was that an indiarubber tube, fixed +temporarily to carry petrol from the tank to the carburettor, had been +eaten through and had permitted petrol to leak out, and to ignite, on +the hot exhaust pipes of the<span class="pagenum"><a name="Page_26" id="Page_26">26</a></span> motor.</p> + +<p>The destruction of this monoplane was, to me, a great disappointment. +No other machine of the type was in existence, and I learned that it +would take three months to build one. M. Bleriot promised, however, to +put a machine in hand at once; and, as a special concession, I +obtained permission to go daily to the Bleriot factory and superintend +the construction of my own machine. This I did for a full period of +three months, working daily from 6 a.m. to 6 p.m., and gaining some +valuable knowledge as to aeroplane construction.</p> + +<p>On November 6, 1909, after delays which had tried my patience sorely, +I obtained delivery of the new machine—a replica of the craft that +had been destroyed at Rheims. It was too late that day to begin any +trials, so I and a friend who was with me arranged with M. Bleriot's +mechanics that we would be at Issy-les-Moulineaux early next morning, +and there put the craft through its preliminary tests. I can remember +we went to bed early, but sleep was impossible; we were both too +excited at the prospect that lay before us. So presently we got +up—this was at 2 a.m.—and drove out to the flying ground.</p> + +<p>It was pitch dark when we arrived at the aerodrome, but the morning +promised to be favourable. Foggy it was; but there was no wind, and +the fog seemed likely to clear. We roused the caretaker, and, after +lengthy explanations and considerable monetary persuasion, induced him +to open the shed and allow us to prepare the machine for its first +flight. Then we waited for the mechanics and the first rays of dawn. +We felt a desire to get the big engine started up, but had been warned +of the risk of doing this without the help of mechanics. Time passed +and still the mechanics did not come. At last, there being now +sufficient light, we tied the aeroplane with ropes to<span class="pagenum"><a name="Page_27" id="Page_27">27</a></span> a fence, so as +to prevent its leaping forward, and then started up the motor by +ourselves. I swung the nine-foot propeller—the only way of starting +the engine; and at the first quarter-turn the motor began to fire. +Then, as is quite usual, there was an incident that had been +unforeseen in our excitement. We had forgotten to take up the slack of +the rope; and the consequence was that, as the engine started, the +machine gave a bound forward that was sufficient to knock me down. But +I was unhurt, and picked myself up quickly. Then I hurried round to +the driving seat and took my place at the control levers, motioning to +my friend, who was looking after the ropes, to cast these loose and +jump into the seat beside me. This was easier said than done. Directly +he released the ropes the machine began to move across the ground, +gathering speed very quickly; but he managed somehow, before the +machine was running too fast, to scramble into the seat beside me.</p> + +<p>Off we started across the aerodrome, the monoplane gaining a speed of +40 or 50 miles an hour. I did not attempt to rise from the ground, +feeling it very necessary at first to grow familiar with the controls. +So we sped along the ground for a distance of about a mile. Then, on +nearing the far end, I slowed down the motor and our speed dropped to +about 20 miles an hour. I wanted to turn the machine round on the +ground and run back again towards our starting point. But such a +manœuvre, particularly for the novice, is far from easy. As the speed +of the machine is reduced, the pressure of air on the rudder is +lessened and so it loses its efficiency—in the same way that a ship +is difficult to steer when she begins to lose way. We were faced also +by another and a graver difficulty. Confused by the fog, which still +hung over the aerodrome, I had misjudged our position. We found we +were much nearer the end of the ground than I had<span class="pagenum"><a name="Page_28" id="Page_28">28</a></span> imagined. In front +of us there loomed suddenly a boundary wall, against which it seemed +probable we should dash ourselves. There were no brakes on the machine; +no way of checking it from the driving seat. Our position seemed +critical.</p> + +<p>It was now that I shouted to my friend, telling him to jump out of the +machine as best he could, and catch hold of the wooden framework +behind the planes, allowing the machine to drag him along the ground, +and so using the weight of his body as a brake. This, with great +dexterity, he managed to do, and we came to a standstill not more than +a foot or so from the wall. This proved a chastening experience; we +pictured our aeroplane dashed against the wall, and reduced to a mass +of wreckage. Very cautiously we lifted round the tail of the machine. +It was impossible to switch off the motor and have a rest, because, if +we had stopped it, we should not have been able to start it again +without our gear, which was away on the other side of the ground.</p> + +<p>Now, having got the machine into position for a return trip across the +aerodrome, I accelerated the engine, and we started off back. For +about twenty minutes, without further incident, we ran to and fro; and +now I felt that I had the machine well in control—on the ground at +any rate. And so the next thing was to rise from the ground into the +air. I told my friend my intention, calling to him above the noise of +the motor; and I admired him for the calm way in which he received my +news. I should not have been surprised if he had demanded that I +should slow up the machine and let him scramble out. In those days it +was thought dangerous to go up even with a skilled and more or less +experienced pilot. How much greater, therefore, must have seemed the +risk of making a trial flight with me—a complete novice in the +control of a machine. But my friend nodded and sat still<span class="pagenum"><a name="Page_29" id="Page_29">29</a></span> in his seat. +So I accelerated the motor and raised very slightly our rear elevating +plane. And then we felt we were off the ground! There was no longer +any sensation of our contact with the earth—no jolting, no vibration. +In a moment or so, it seemed, the monoplane was passing through the +air at a height of about 30 feet. This, to our inexperienced eyes, +appeared a very great altitude; and I made up my mind at once to +descend. This manœuvre, that of making contact with the ground after +a flight, I had been told was the most difficult of all. It is not +surprising that this should be so. Our speed through the air was, at +the moment, about 50 miles an hour; and to bring a machine to the +ground when it is moving so fast, without a violent shock or jar, is a +manœuvre needing considerable judgment. But, remembering that the +main thing was to handle the control lever gently, I managed to get +back again to the aerodrome without accident; and after this we turned +the machine round again and made another flight.</p> + +<p>The fog had cleared by now, and we were surprised to see a number of +people running across the ground towards us. First there came the +tardy mechanics; and with them were a number of reporters and +photographers representing the Paris newspapers. These latter +had—though I only found this out afterwards—been brought by the +mechanics in the expectation of being able to record, with their +notebooks and cameras, some catastrophe in which we were expected to +play the leading parts. Knowing the powerful type of monoplane I had +acquired, a machine not suited for a novice, the mechanics had felt +sure some disaster would overtake me. But, as it happened, their +anticipations were not fulfilled. The journalists and photographers +did not, however, have a fruitless journey. Though there was nothing +gruesome to chronicle, they found ample material, when they learned of +them, in the early<span class="pagenum"><a name="Page_30" id="Page_30">30</a></span> morning adventures of myself and my friend with +this 60 h.p. monoplane. Next day, in fact, our exploits were given +prominence in the newspapers, and I received a number of +congratulatory telegrams; not forgetting one of a slightly different +character which came from M. Bleriot. He was flying at the time in +Vienna, and he warned me of the dangers of such boldness as I had +displayed—having regard to the speed and power of my machine—and +pleaded with me for a greater caution.</p> + +<h2><a name="ch4" id="ch4"></a>CHAPTER IV</h2><span class="pagenum"><a name="Page_31" id="Page_31">31</a></span> + +<h3>THE CONTROLLING OF LATEST-TYPE CRAFT</h3> + +<p><span class="smallcaps">People</span> are puzzled, often, when they try to explain to themselves how +it is that an aeroplane, which is so much heavier than air, manages to +leave the ground and to soar in flight. When balloons or airships +ascend, it is realised of course that the gas, imprisoned within their +envelopes, draws them upward. But the aeroplane—weighing with pilot, +passenger, and fuel perhaps several thousand pounds—rises without the +aid of a gas-bag and with nothing to sustain it but narrow planes; and +these do not beat, like the wings of a bird, but are fixed rigidly on +either side of its body. How is the weight of machine and man borne +through this element we cannot see, and which appears intangible?</p> + +<p>The secret is speed—the sheer pace at which an aeroplane passes +through the air. As a craft stands on the ground, its planes are +inoperative. Power lies dormant in the air, but only when it is in +motion, or when some object or apparatus is propelled through it at +high speed. Have you stood on a height, in a gale, and felt an air +wave strike powerfully against your body? The blow is invisible; but +you yield a step, gasping; and, had you wings at such a moment, you +would not doubt the power of the wind to sweep you upward. This is the +force the aeroplane utilises.</p> + +<p>If, on a calm day, you accelerate your motor-car to 60 miles an hour, +the air sweeps past you in a powerful stream; just as it would if you +were standing still, and there was a gale of wind. Instead of the wind +possessing<span class="pagenum"><a name="Page_32" id="Page_32">32</a></span> the speed, in this instance, it is you who provide it. The +motor of an aeroplane, driving the propeller of the machine, turns +this at 1000 or more revolutions a minute, and causes its curved +blades to screw forward through the air as they turn, like those of a +ship's propeller through water—or a gimlet into wood. The propeller, +as it bores its way into the air, draws or pushes the aeroplane across +the ground; and the speed grows rapidly until the air, sweeping with +an increasing pressure beneath the planes, becomes sufficient to bear +the craft in flight.</p> + +<p>But the wing of an aeroplane would not sustain its load unless +designed specially to act upon the air. A man, if he is unlucky enough +to fall from a tall building, passes through the air at a high speed. +His body obtains no support from the air; so he crashes to the ground. +This is because his body is heavy, and presents only a small surface +to the air. To secure a lifting influence from the air, it must be +struck swiftly with a large, light surface.</p> + +<p>Men go to Nature when building wings for aeroplanes, and imitate the +birds. The wing of a bird arches upward from front to back, most of +the curve occurring near the forward edge; and this shape, when +applied to an aeroplane wing, is known as its camber. With an +aeroplane wing, if its curve is adjusted precisely, the air not only +thrusts up from below as a machine passes through it, but has a +lifting influence also from above; an effect that is secured by the +downward slope of the plane towards its rear edge. The air, sweeping +above the raised front section of the plane, is deflected upward, and +with such force that it cannot descend again immediately and follow +the downward curve of the surface. So, between this swiftly-moving air +stream, and the slope to the rear of the plane, a partial vacuum is +formed, and this sucks powerfully upward. With a single wing, +therefore, it is possible to gain a double<span class="pagenum"><a name="Page_33" id="Page_33">33</a></span> lifting influence—one +above and one below.</p> + +<p>The building of aeroplanes, once their wing lift is known, becomes a +matter of precision. According to the speed at which they fly, and the +size and curve of their planes, machines will sustain varying loads. +In some machines, as a general illustration—craft which fly fast—the +planes may bear a load equal to 10 lbs. per square foot. In others the +loading may be less than 3 lbs. per square foot.</p> + +<p>Apart from raising a craft into the air, by the lifting power of its +wings, there is the problem of controlling it when in flight. The air +is treacherous, quickly moving. Gusts of abnormal strength, sweeping +up as they do invisibly, may threaten to overturn a machine and dash +it to earth. Eddies are formed between layers of warm and cold air. +There are, as a craft flies, constant increases or lessenings of +pressure in the air-stream that is sweeping under and over its wings; +and all these fluctuations influence its equilibrium. Unless, +therefore, a machine is automatically stable—and with craft of this +type we shall deal later—the pilot must be ready, by a movement of +the surfaces which govern the flight of the machine, to counteract +quickly, with a suitable action of his levers, the overturning +influence that may be exercised by a gust of wind. Here lies the art +of flying. A man is given a machine which, by the action of its motor +and propeller, will raise itself into the air; and it is his task, +when the craft is once aloft, to manipulate it accurately and without +accident, and to bring it to earth safely after he has made a flight.</p> + +<p>In the description of controlling movements which follows we shall, +for the sake of convenience, and for the sake also of brevity, deal +only with the type of "pusher" biplane to which reference has been +made already, and on which large numbers of pupils have been, and are +being, trained to fly. This casts no<span class="pagenum"><a name="Page_34" id="Page_34">34</a></span> aspersion whatever on tractor +machines or on monoplanes. On either, if he has an inclination, a +pupil can undergo his instruction, and do so usually with success. But +explanation is rendered more easy, and there is less likelihood of a +dispersal of interest, if one machine is selected for illustration; +and our reasons for the choice of a "pusher" biplane, regarded from +the point of view of tuition, have been explained already.</p> + +<p>First, therefore, one may deal with raising the craft into the air, +and causing it to descend. In the photograph of the school machine +shown, <a href="#facing_page_34">facing this page</a> it will be seen that the control surfaces are +indicated by lettering. In front of the biplane, on outriggers, is the +plane "A." This surface (aided in its action by a rear plane) governs +the rise or descent of the machine. When the motor is started, and the +propeller drives the biplane across the ground on its chassis B, the +machine would, if this lifting plane was held in a negative position, +continue to move forward on the earth and would make no attempt to +rise. In order to leave the ground, when the speed of the machine is +sufficient for its main-planes (C.C.) to become operative, and bear +its weight through the air, the pilot draws back slightly towards him +a lever, which is placed just to the right of his driving-seat and is +held with the right hand. A photograph which shows this lever, and the +other controls, appears, <a href="#facing_page_36">facing page 36</a> the lever to which we are +referring being indicated by the figure 1. The effect on the aircraft +when the pilot draws back this lever—the motion being slight and made +gently—is to tilt up the elevating plane A, and this in its turn, +owing to the pressure of air upon it, raises the front of the machine. +The result of this alteration in the angle of the craft is that it +presents its main-planes at a steeper angle to the air. Their lifting +influence is increased, with the result that—at an angle governed by +the pilot with his movement<span class="pagenum"><a name="Page_35" id="Page_35">35</a></span> of the elevating plane—they bear the +machine from the ground into the air.</p> + +<p class="illustration"><a name="facing_page_34" id="facing_page_34"></a> +<img src="images/facing_page_34.jpg" alt="GRAHAME-WHITE SCHOOL BIPLANE (TYPE XV.)" width="500" height="198"></p> + +<p class="caption">GRAHAME-WHITE SCHOOL BIPLANE (TYPE XV.)<br> +<i>Photo by Topical Press Agency.</i> +<br> +<br>A.—The front elevating plane, which acts in conjunction with +the rear-plane marked A<sup>1</sup>; B.—The landing-chassis; +C.C.—The main-planes; D.D.—The ailerons; E.E.—The +rudders; F.—Engine (a 60-h.p. Le Rhone) and propeller.</p> + +<p>A reverse movement of the elevator reduces the lift of the main-planes; +hence, when an aviator wishes to descend, he tilts down his elevator, +bringing his machine at such an angle that it is inclined towards the +ground. Then, switching off his engine so as to moderate the speed of +his descent, and by such manipulations as may be necessary of his +elevator, he pilots his craft to earth in a vol-plané, during which +gravity takes the place of his motor, and he is able—by steadying his +machine and bringing it into a horizontal position just at the right +moment—to make a gentle contact with the ground.</p> + +<p>A pilot must be able to do more than cause his aeroplane to ascend and +to alight: he must have means to check the lateral movements which, +under the influence of wind gusts, may develop while the biplane is in +flight. At the rear extremities of the main-planes as illustrated in +the photograph <a href="#facing_page_34">facing page 34</a>—and marked D.D.—are flaps, or ailerons, +which are hinged so that they may be either raised or lowered. These +ailerons are operated, through the medium of wires, by the same +hand-lever which governs the movement of the elevator. This lever is +mounted on a universal joint, and can be moved from side to side as +well as to and fro. Should the biplane tilt, while flying, say towards +the left, the pilot moves his hand-lever sideways towards the right. +This is a natural movement, the instinct being to move the lever away +from the direction in which the machine is heeling. This movement of +the lever has the effect of drawing down the ailerons on the left-hand +side of the machine; on the side, that is to say, which is tilted down; +and the depression of these auxiliary surfaces, increasing suddenly +as they do the lifting influence of the main-planes to which they are +attached, tend to thrust up<span class="pagenum"><a name="Page_36" id="Page_36">36</a></span> the down-tilted wings, and so restore the +equilibrium of the machine.</p> + +<p>In the operation of his ailerons, combined with the use of his +elevator, a pilot is given means to balance his craft while in flight. +One should not gain the impression that an aeroplane is threatening +ceaselessly to heel this way and that. This is not so. The machine has +a large measure of stability, apart from any manipulation of its +controls, and needs balancing only when some disturbance of the +atmosphere affects its equilibrium. Under favourable conditions, such +as a pupil will experience in his first flights, nothing more is +necessary with the hand-lever than a very slight but fairly constant +action; a similar motion, in a way, as is made by the driver of a +motor-car when he maintains, by his "feel" on the wheel, his sense of +control over the machine. In the controlling actions of an +aeroplane—and this is a fact which tends sometimes to the confusion +of the novice—nothing more is required, normally, than the most +delicate of movements. The difference say between ascending, and +skimming along the ground, is represented by a movement of the +hand-lever of only a few inches. Delicate, sure, quick, and firm; such +is the touch needed with an aeroplane.</p> + +<p>With the one hand-lever, as we have shown, it is possible for a pilot +to control the rise and descent, and also the lateral movements of his +machine; and there remains only the steering to be effected—the +movement from side to side, from right to left, or vice-versa. At the +rear of the biplane, as shown, <a href="#facing_page_34">facing page 34</a> will be seen two +vertical planes, E.E. These, being hinged, will swing from side to +side; and they exercise a sufficient influence, when working in the +strong current of air that blows upon them when a machine is in flight, +to steer it accurately in any direction. The pilot, to operate this +rudder, rests his feet on a conveniently-placed bar, which is mounted +on a central swivel, and<span class="pagenum"><a name="Page_37" id="Page_37">37</a></span> allows the bar to be swung by a pressure of +either foot. When the pilot needs to make a turn say to the left, as +he is flying, he presses his left foot forward. This swings the bar in +same direction; and, by a simple connection of wires running to the +tail of the machine, the rudders are made to swing over to the left +also, and the machine turns in response to them. A similar movement to +the right produces a right-hand turn. This foot rudder bar, being +numbered 2, is shown in the picture <a href="#facing_page_36">facing page 36</a>.</p> + +<p class="illustration"><a name="facing_page_36" id="facing_page_36"></a> +<img src="images/facing_page_36.jpg" alt="THE CONTROLS OF A SCHOOL BIPLANE." width="500" height="329"> </p> + +<p class="caption">THE CONTROLS OF A SCHOOL BIPLANE.<br> +<i>Photo by Topical Press Agency.</i> +<br> +<br>1.—The upright lever which, working on a universal joint, +operates the elevator and ailerons; 2.—The bar, actuated by the +pilot's feet, which operates the rudders of the machine; 3.—The +pilot's seat; 4.—The passenger's seat.</p> + +<p>Apart from the movements we have described, which are extremely simple, +a pilot needs also to maintain control over his motor. Near his left +hand, fixed to the framework just at one side of his seat, are levers +which govern the speed of the engine, also the petrol supply; while +close to them is the switch by which the ignition can be switched on +or off.</p> + +<p>A final word is necessary here, perhaps, and it is this: the glamour +and mystery which, in the early days, clung to the handling of an +aeroplane has now been dispelled almost entirely. A well-constructed +machine, flying under favourable conditions, requires surprisingly +little control; what it does, one may almost say, is to fly itself.</p> + +<h2><a name="ch5" id="ch5"></a>CHAPTER V</h2><span class="pagenum"><a name="Page_38" id="Page_38">38</a></span> + +<h3>THE STAGES OF TUITION</h3> + +<p><span class="smallcaps">Flying</span> schools—those which really can be described as such—have been +in operation now for seven years; and during this time, with thousands +of pupils going through their period of tuition, many very valuable +lessons have naturally been learned. To-day, at a well-managed school, +each stage in a pupil's instruction, mapped out as a result of +experience, is arranged methodically and with care; the idea being +that the novice should pass from one stage to another by a +smoothly-graduated scale, facilitating his progress and reducing +elements of risk.</p> + +<p>It is in the early morning, and again in the evening, that the flying +schools are most busy as a rule. At such times—morning and +evening—the wind blows with least violence; and it is very necessary +that a pupil, when he is handling craft for the first time, should +have weather conditions which are favourable. Summer and winter, as +soon as it is light, and granted conditions appear suitable, mechanics +wheel the aeroplanes from the sheds, and the instructors begin their +work. Should there be any doubt as to the weather, or as to the +existence, say, of difficult air currents, an instructor will fly +first, circling above the aerodrome at various heights, and satisfying +himself, by the behaviour of his machine, whether it will be safe for +the novices to ascend. If he pronounces "all well," school work begins +in earnest, and continues—provided the weather remains +favourable—until all the pupils have had a spell of instruction. +Towards<span class="pagenum"><a name="Page_39" id="Page_39">39</a></span> the middle of the day, and in the afternoon, it is quite +likely the wind may blow and school work be suspended. But in the +evening again, when there is usually a lull, a second period of +instruction will be carried out. In well-equipped schools, to meet +such conditions as these, it is customary to provide two complete and +distinct staffs, both of instructors and mechanics. One staff takes +the morning spell of work, while the second is held in readiness for +the evening. This ensures that, both morning and evening, there shall +be available for instruction a fresh, alert, and unfatigued staff.</p> + +<p class="illustration"><a name="facing_page_38" id="facing_page_38"></a> +<img src="images/facing_page_38.jpg" alt="REAR VIEW OF A SCHOOL BIPLANE." width="500" height="199"> </p> + +<p class="caption">REAR VIEW OF A SCHOOL BIPLANE.<br> +<i>Photo by Topical Press Agency.</i> +<br> +<br>This photograph shows clearly the hinged ailerons fixed at the +extremities of the plane-ends for maintaining lateral stability: also +the rear elevating plane (which acts in conjunction with the +fore-plane mounted on outriggers at the front of the machine) and the +twin rudders.</p> + +<p>A pupil will find that, as the first stage of his tuition, he is given +the task of familiarising himself with the controls of a school +biplane. The system we have described already, and a pupil should find +no difficulty in mastering it. Placing himself in the driving-seat of +the machine, while it is at rest on the ground, the pupil takes the +upright lever in his right hand, and rests his feet on the rudder-bar, +making the various movements of control, again and again, until he +finds he is growing accustomed to them, and can place his levers in a +position for an ascent or descent, or for a turn, without having to +wait while he thinks what it is necessary to do.</p> + +<p>In the next stage, a more interesting one, the pupil, occupying a seat +immediately behind his instructor, is taken for a series of passenger +flights. These accustom him to the sensation of being in the air, and +also train his eye in judging heights and distances. A minor point the +pupil should bear in mind, though his instructor will be quick to +remind him, is not to wear any cap or scarf that may blow free in the +rush of wind and become entangled with the propeller. Scarves need to +be tightly wrapped; while it is usual, with a cap, to turn it with the +peak to the back, and so prevent it from having a tendency to lift +from the head. Many pupils provide themselves with a helmet designed +to<span class="pagenum"><a name="Page_40" id="Page_40">40</a></span> protect the head in case of an accident, and these are held firmly +in position. Should a passenger's cap blow off, and come in contact +with the propeller, it may be the cause of an accident. How +carelessness may lead to trouble, in this regard, will be gathered +from the following incident.</p> + +<p>Some slight repairs had been made one day to the lower plane of a +machine while it stood out on the aerodrome, and one of the workmen, +through inadvertence, had left lying on the plane, near its centre, a +roll of tape. The pilot decided to make another flight, and the motor +was started and the machine rose. Suddenly the aviator was startled by +a sound like a loud report, which seemed to come from the rear of his +machine. The craft trembled for a moment, and he feared a structural +collapse. Nothing worse happened, however, and he was able to pilot +his machine in safety to the aerodrome. What had happened, it was then +ascertained, was that the roll of tape, sucked back in the rush of +wind, had been drawn into the revolving propeller and had broken a +piece out of it. Luckily the impact had not been heavy enough to +damage the propeller seriously, or cause it to fly to pieces.</p> + +<p>A problem with which the pupil will be faced in his first flights, +particularly if he is learning in winter, will be that of keeping +himself warm. The speed at which an aeroplane travels, combined with +the fact that it is at an elevation above the ground, renders the +"bite" of the cold air all the more keen, and makes it difficult very +frequently, even when one is warmly clad, to maintain a sufficient +warmth in the body, and particularly in the hands and feet. The +question of cold hands is, from a pilot's point of view, often a +serious one. There is a case on record of an aviator who, his hands +being so numbed that his fingers refused to move, found he could not +switch off his motor when the time came to descend; and so he had to +fly<span class="pagenum"><a name="Page_41" id="Page_41">41</a></span> round above the aerodrome, several times, while he worked his numb +fingers to and fro, and beat some life into them against his body. At +last, having restored their circulation to some extent, he was able to +operate the switch and make a landing. While on active service in +winter, after flying several hours at high altitudes, and in bitter +cold, the occupants of a machine have descended in such a numbed +condition, despite their heavy garments, that it has been found +necessary to lift them out of their seats. But a pupil need not face +such hardships as these. He will be flying for short periods only, and +at low altitudes; so if he makes a few wise purchases from among the +selection of flying gear now available, and particularly if he equips +himself with some good gloves, he should be able to keep sufficiently +warm in the air, even if he is going through his training in winter.</p> + +<p class="illustration"><a name="facing_page_40" id="facing_page_40"></a> +<img src="images/facing_page_40.jpg" alt="POWER-PLANT OF A SCHOOL BIPLANE." width="500" height="326"> </p> + +<p class="caption">POWER-PLANT OF A SCHOOL BIPLANE.<br> +<i>Photo by Topical Press Agency.</i> +<br> +<br>Showing the 60-h.p. Le Rhone Motor, with its mounting on the +machine, and the method of attaching the propeller. The fuel tank is +also visible; and, forward at the front of the machine, the seats of +passenger and pilot.</p> + +<p>A pupil will feel curious, naturally, as to his sensations in the +first flights he makes with his instructor. Of the exact moment when +the machine leaves ground he will be unaware probably, save for the +cessation of any jolting or vibration, such as may be caused by the +contact of the running wheels with the surface of the aerodrome. His +first clearly-marked sensation, when in actual flight, will occur most +likely when the pilot rises a little sharply, so as to gain altitude. +Then the pupil will have a feeling one might liken to the ascent, in a +motor-car, of a steep and suddenly-encountered hill; though in this +case the hill is invisible, and there is no earth contact to be felt. +This sensation of climbing is exhilarating; and when the pilot makes a +reverse movement, descending towards the ground, the feeling is +pleasant enough also, provided the dive is not too steep.</p> + +<p>The pupil's chief sensation, probably, will be that of the rush of +wind which beats against him. Some people feel this much more than +others. There is sometimes<span class="pagenum"><a name="Page_42" id="Page_42">42</a></span> a feeling—it is no more than temporary—of +inconvenience and of shock. The pupil feels as though his breathing +was being interfered with seriously; as though the pressure was so +great he could not expel air from his lungs. But this sensation, even +when it is experienced, is short-lived. In a second flight, quite +often, the novice finds that this oppression diminishes very +perceptibly; and soon he does not notice it at all. Motoring +experience proves useful here, particularly high-speed driving on a +track.</p> + +<p>Some confusion is felt by the pupil, as a rule, and this is only +natural, in regard to the pace at which the aeroplane travels through +the air, and at the way in which the ground seems to be tearing away +below. Occasionally, in a first flight, this impression of speed, and +of height, produce in the pupil a sensation of physical discomfort; +but it is one again which, in the majority of cases, is quickly +overcome. A few balloon trips are a useful preliminary to flights in +an aeroplane. They familiarise one in a pleasant way with the +sensation of height, and accustom the eye also to the look of the +ground, as it passes away below.</p> + +<p>While he is making his first flights with the instructor, and apart +from analysing his sensations, the pupil will observe the lever +movements made by the pilot in controlling the machine; and the fact +that will impress itself upon him, as he watches these movements, is +that they are not made roughly or spasmodically, but are almost +invariably gentle. During these flights as a passenger, and after he +has accustomed himself to the novelty of being in the air, the pupil +will be allowed by the instructor to lean forward and place his hand +on the control lever; and in this way, by actually following and +feeling for himself the control actions the pilot makes, he will gain +an idea of just the extent to which the lever must be moved, to gain +any<span class="pagenum"><a name="Page_43" id="Page_43">43</a></span> specific result in the flight of the machine.</p> + +<p class="illustration"><a name="facing_page_42" id="facing_page_42"></a> +<img src="images/facing_page_42.jpg" alt="MOTOR AND OTHER GEAR—ANOTHER VIEW." +width="500" height="325"></p> + +<p class="caption">MOTOR AND OTHER GEAR—ANOTHER VIEW.<br> +<i>Photo by Topical Press Agency.</i> +<br> +<br>This shows the constructional unit that is formed, on a suitably +strong framework of wood, by the engine, propeller, and fuel tank, and +also by the seats for the pilot and passenger.</p> + +<p>The next stage of tuition is that in which a pupil is allowed to +handle a biplane alone, not in flight though but only in "rolling" +practice on the ground—driving the machine to and fro across the +aerodrome. The motor is adjusted so that, while it gives sufficient +power to drive the machine on the ground and render the control +surfaces effective, it will not permit the craft to rise into the air. +This stage, a very necessary one, teaches the pupil, from his own +unaided experience just what movements he must make with his levers to +influence the control surface of the machine, and to maintain it, say, +on a straight path while it runs across the ground. One of the +discoveries he will make is that the biplane, if left to itself, shows +a tendency to swerve a little to the left—the way the propeller is +turning; but this inclination may be corrected, easily, by a movement +of the rudder.</p> + +<p>The pupil learns also to accustom himself, while in this stage, to the +engine controls which have been explained already; and he is not +likely to be guilty of the error of one excitable novice who, while +driving his machine back on the ground towards the sheds at an +aerodrome, after his first experience in "rolling" became so confused, +as he saw the buildings looming before him, that he lost his head +completely and forgot to switch off his motor. The result was that the +aeroplane, unchecked in its course, crashed into some railings in +front of the sheds and stood on its head. Not much damage was done +however, and the novice was unhurt. He seemed as surprised as anyone +at what had happened, and confessed that, for the moment, his mind had +been an utter blank.</p> + +<p>A pupil continues his practice in "rolling" till he can drive his +machine to and fro across the aerodrome on a straight course, and with +its tail raised off the ground; the latter action being obtained by +the<span class="pagenum"><a name="Page_44" id="Page_44">44</a></span> pupil by means of a suitable movement of the vertical lever which +operates his elevating planes.</p> + +<p>Now comes the time when a pupil, taking the pilot's seat, and with the +instructor sitting behind him—so as to be ready, if necessary, to +correct any error the novice may make—begins his first short flights +across the aerodrome. He rises only a few feet to begin with, and +flies on a straight course, alighting each time before he turns, and +running his machine round on the ground. He repeats this test until +his instructor feels he is sufficiently expert to take the machine +into the air alone. When this stage is reached, the instructor leaves +his position behind the pupil, and the latter goes on with his +practice till he can fly the length of the aerodrome alone, landing +neatly and bringing his machine round on the ground, and then flying +back again to his starting point.</p> + +<p>In the early days of flying schools, before a pupil went through any +regular system of instruction, there were remarkable incidents in +regard to these first flights. In one case a pupil, having bought his +own aeroplane from the proprietors of a school, insisted on having +installed in it a motor of exceptional power. When the time came for +him to make his first flight alone, and he opened the throttle of this +engine and it began to give its full power, the aeroplane ran only a +short distance across the ground, and then leapt into the air. The +engine was in charge of the machine, in fact, and not the pupil. Away +above the aerodrome, and beyond its limits, in a strange, erratic +flight, the biplane made its way. As the pupil struggled valiantly +with his engine switch, which appeared to have become jammed, he made +unconscious and jerky movements of his control levers. One moment the +machine would ascend a little, the next it would approach nearer the +ground; then it would swing either right or left. Those watching from the aerodrome held their breath.<span class="pagenum"><a name="Page_45" id="Page_45">45</a></span> But with the luck +of the beginner, a luck which is proverbial and sometimes amazing, the +pupil managed at length to stop his motor and land without +accident—though by no means gracefully—in an abrupt gliding descent.</p> + +<p class="illustration"><a name="facing_page_44" id="facing_page_44"></a> +<img src="images/facing_page_44.jpg" alt="PUPIL AND INSTRUCTOR READY FOR A FLIGHT." width="500" height="325"> </p> + +<p class="caption">PUPIL AND INSTRUCTOR READY FOR A FLIGHT.<br> +<i>Photo by Topical Press Agency.</i> +<br> +<br>The pupil, occupying in this case the driving seat, has in his +right hand the lever controlling the elevator and ailerons, while his +feet are on the bar which operates the rudder. The instructor (in the +passenger's seat) is demonstrating how, when necessary, he can place +his hand on the control lever, above that of the pupil, and correct +any error in manipulation of which the latter may be guilty.</p> + +<p>Another story concerns one of those temperamentally reckless, +happy-go-lucky men who, though providence seems to watch over them, +are an anxiety nevertheless to their instructors. This pupil, breaking +the rules of a school, flew out on one of his first flights beyond the +limits of the aerodrome, disappearing indeed from the view of those +near the sheds. Not far from the aerodrome lay a main road, with +tramway-lines along it. A tram, with passengers on top, happened to be +passing down the road; and it was to the astonishment of these +passengers, and to their perturbation as well, that they observed an +aeroplane in full flight, moving very low across a neighbouring field, +and bearing down straight towards them. The machine passed, indeed, +unpleasantly close above their heads, and then vanished as +dramatically as it had appeared. Its pilot, as may be guessed, was the +pupil who had disobeyed orders, and was now on a wild and erratic +flight. Presently, after swerves and wanderings over the surrounding +country, he was discerned making his way back towards the aerodrome, +still flying unreasonably low. Some trees bordered one end of the +aerodrome; and towards these, as though he meant to finish his exploit +by charging into them, the novice was seen to be steering an +undeviating course. Nearer he came to them, and still he did not turn +either right or left. The instructor, and those gathered with him, +made up their minds that nothing could avert an accident. But it +happened that there was, between two of the trees, a space only large +enough for an aeroplane to pass through. A skilled pilot, a man of +experience, would not have cared to risk his machine in an endeavour +to creep between<span class="pagenum"><a name="Page_46" id="Page_46">46</a></span> those trees. But this pupil, a complete novice, +steered boldly towards the opening and slipped through it with a +precision that would have aroused the envy of an accomplished pilot. +Then he landed on the aerodrome and climbed in leisurely fashion from +his machine—"not having turned a hair," as the saying goes. The +remarks of the instructor when he neared the machine, and began to +unburden himself, do not appear to be on record, and no doubt this is +as well.</p> + +<p>Having shown his ability to make a succession of straight flights, +taking his machine into the air with precision and landing without +awkwardness, the pupil finds himself faced next with the problem of +turning while in the air. On this stage, however, he is not allowed to +embark alone. The instructor takes his place again in the passenger's +seat, so as to be ready to help the novice should he become confused, +or find himself in any difficulty. Turns to the left are attempted +first; and the reason is that, the propeller of the aeroplane +revolving to the left—and the motor too if it is a rotary one—the +machine has a tendency which is natural to turn in this direction. +Half turns only are tried at first, the pupil landing before he has +completed the movement. In making these first turns a pupil finds that, +apart from his action with the rudder-bar, it is necessary to employ +the ailerons slightly, so as to prevent the biplane from tilting +sideways. The outer plane-ends of the machine have indeed, when a turn +is being made, a natural tendency to "bank" as it is called, or tilt +upward; the reason being that, as the machine swings round, these +outer plane-ends, moving faster for the moment than the wing-tips on +the inside of the turn, exercise a greater lift, and have an +inclination to rise. An experienced aviator, having learned what is a +safe "banking" angle, makes a deliberate use of this tendency when he +is turning, and may on occasion even exaggerate it, to facilitate the<span class="pagenum"><a name="Page_47" id="Page_47">47</a></span> +swing of his machine on a very rapid turn, and to prevent it skidding +outwards. But with the novice, engrossed completely as he is with the +mere problem of getting his machine round in the air, "banking" is an +art that must be deferred for awhile. It is perilously easy, for a +beginner, to overstep the danger-line between a safe "bank" and a +side-slip.</p> + +<p class="illustration"><a name="facing_page_46" id="facing_page_46"></a> +<img src="images/facing_page_46.jpg" alt="PUPIL AND INSTRUCTOR IN FLIGHT (1)." width="500" height="233"></p> + +<p class="caption">PUPIL AND INSTRUCTOR IN FLIGHT (1).<br> +<i>Photo by Topical Press Agency.</i> +<br> +<br>A school biplane is seen just after it has left the ground, with +the pupil at the control levers, and the instructor seated behind +him—ready, if necessary, to correct any error the novice may +make.</p> + +<p>It is not long before the pupil can make a full left-hand turn; and +then he goes on to perfect himself in this movement, flying alone now, +and repeating the turn till he feels he can make it with confidence, +and at a fair height.</p> + +<p>And now he comes to his final evolutions. Having mastered the +left-hand turn, he proceeds to make one to the right. It used to be +the contention—a contention that is now disputed—that in this +movement, if the pupil employed his rudder-bar only, he would find the +biplane showed an inclination to rise; a tendency due to the +gyroscopic influence of the engine and propeller which—assuming a +rotary engine is used—are now revolving in the opposite direction to +that on which the machine is turned. What the pupil was recommended to +do, in order to counteract this rising movement, was to tilt down his +elevator a little, as he would in making a descent.</p> + +<p>When right-hand turns can be made with the same facility as those to +the left, the pupil begins to combine the two without descending, +making left turns and right turns, and so achieving in the air a +series of figures of eight. He learns also to fly a little higher, +thus preparing himself for one of his certificate tests.</p> + +<p>There are now certain very important rules which, in the navigation of +his craft, he must accustom himself to bear constantly in mind. Should +the engine of his machine, for example, betray any signs of failing, +he must tilt down his elevator very promptly, and place his craft in a +position for a descent. If he does not do<span class="pagenum"><a name="Page_48" id="Page_48">48</a></span> this, and should the motor +stop before he has his biplane at an angle for descent, the machine +may lose speed so quickly, and its tail-planes show such a tendency to +droop—owing to the lessening of pressure on their surfaces, +consequent upon the failure of the motor—that there is a risk of the +craft coming to a standstill in the air and then either falling +tail-first, or beginning a side-slip that may bring it crashing to the +ground.</p> + +<p>The pupil must learn also, and this again is important, not to force +his machine round on a turn while it is climbing. If he does so the +power absorbed in the ascent, combined with the resistance of the turn, +may so reduce the speed of the machine that it threatens to become +"stalled," or reach a standstill in the air, with the result that it +either side-slips or falls tail-first. The procedure the pupil is +taught to follow is this: when he leaves the ground he climbs a little, +then he allows his machine to move straight ahead; then he proceeds +to ascend again for a spell, repeating afterwards the horizontal +flight. In this way he ascends by a series of steps, like climbing a +succession of hills in a car; and his turns should be made only during +the spells when he is flying horizontally.</p> + +<p>In this stage of his tuition, the pupil must learn also to make a +vol-plané, or descent with his engine stopped. The essential point to +be borne in mind, here, is that an aeroplane will continue in flight, +and remain under control, even when it is no longer propelled by its +engine. But what the aviator must do, should his engine stop through a +breakdown, or should he himself switch it off, is to bring the force +of gravity to his aid, and maintain the flying speed of his craft by +directing it in a glide towards the ground. Provided he does this, and +keeps his machine at such an inclination that it is moving at a +sufficient speed through the air, he will find that the craft +maintains its stability<span class="pagenum"><a name="Page_49" id="Page_49">49</a></span> and that he has full command over its control +surfaces, being able to turn, say, right or left, or either increase +or slightly decrease the steepness of his descent. But all the time, +of course, seeing that it is gravity alone which is giving him his +flying speed, he is obliged to plane downward.</p> + +<p class="illustration"><a name="facing_page_48" id="facing_page_48"></a> +<img src="images/facing_page_48.jpg" alt="PUPIL AND INSTRUCTOR IN FLIGHT (2)." width="500" height="299"></p> + +<p class="caption">PUPIL AND INSTRUCTOR IN FLIGHT (2).<br> +<i>Photo by Topical Press Agency.</i> +<br> +<br>This shows clearly how the instructor, from his seat behind the +pupil, can lean forward and, by placing his hand on the control lever, +check the novice in an error of manipulation.</p> + +<p>A vital point to remember, when a pupil is handling a "pusher" type of +biplane, is to incline the machine well downward, by a use of the +elevator, before switching off the motor. Unless this is done, and if +the machine is, say, at its normal horizontal angle when the engine is +stopped, the sudden removal of pressure from the tail-planes of the +craft, brought about by the absence of the wind-draught from the +propeller, may cause the tail so to droop as to render inoperative any +subsequent action of the elevator. When the tail droops, the +main-planes are set at a steep angle to the air, and this has a +slowing-up influence on the whole machine. It threatens therefore to +stand still in the air; its controls become useless; and the pupil is +faced probably with the danger of a side-slip.</p> + +<p>A story will illustrate this point; and it is one that has a special +significance, seeing that the error which might have cost him his life +was made by an aviator of experience. He had learned to fly on a +monoplane, and had devoted his subsequent flying, for many months, to +this one type of machine. Then he found himself associated with an +enterprise in which a number of "pusher" biplanes were employed, and +he decided that it would be useful for him to become accustomed to +this type of machine. His flying experience of course helped him, and +he soon found himself passing to and fro above the aerodrome, the +biplane well in hand. Then he thought he would make a vol-plané, with +his motor stopped, as he had been in the habit of doing in a +monoplane. He switched off his engine without further thought, and +moved his<span class="pagenum"><a name="Page_50" id="Page_50">50</a></span> elevator to a position for the descent. But it was here that +he made the mistake. In a monoplane, which has the weight of the +engine and other gear well forward in the machine, the bow has a +natural tendency to tilt down when the motor is cut off—particularly +as the propeller-draught ceases to sweep under the sustaining planes. +Therefore one can, in such a machine, switch off safely without first +shifting the elevator, and getting the bow down as a preliminary. What +the pilot had forgotten, for the moment, was the essential difference +between monoplane and biplane. When he had switched off the engine in +the biplane, and moved his elevator as he was accustomed to do, he +found to his dismay that the machine failed to respond. Instead of +pointing its bow down, indeed, it began to tilt rearward. Also, and +this fact was noted by the airman with even more dismay, the craft +lost forward speed so rapidly that it became uncontrollable. The next +moment, the pilot helpless in his seat, the machine began a side-slip +towards the ground. One sweep it made sideways, falling till it was +not far short of the surface of the aerodrome. It paused an instant, +then began a side-slip in the opposite direction. But here good +fortune came to the pilot's aid. In this second swing, the machine +being near the ground, it came in contact with the surface of the +aerodrome before the "slip" had time to develop any high rate of +speed. The biplane took the ground sideways, breaking its +landing-chassis and damaging the plane-ends which came first in +contact with the earth. But the pilot emerged from the wreckage +unhurt. The accident was a lesson to him, though, as it was to others, +and as it should be to all pupils. A machine must be in a gliding +position before the engine is switched off.</p> + +<p>The art of the accomplished pilot, granted there is no reason for him +to reach earth quickly, is to glide at as fine an angle as is possible, +consistent of course with<span class="pagenum"><a name="Page_51" id="Page_51">51</a></span> maintaining the speed of the machine +through the air, and so preserving his command over its controls. A +beautifully-timed, fine glide, the machine stealing down gracefully, +and touching the aerodrome light as a feather, at a precise spot the +airman has decided on even when he was several thousand feet high, is +a delightful spectacle for the onlooker, and a keen pleasure +also—from the point of view of his manipulative skill—to the aviator +himself. But a pupil, at any rate in his first attempts, must not +concern himself too much with any idea of a fine or graceful glide. It +is his business to get to the ground safely, and not trouble too much +whether his method is accomplished, or merely effective. Once with the +bow of his machine down, and his motor switched off, it must be his +concern to maintain the forward speed of his machine, which can be +done only by holding it well on its dive. For the novice, if he +attempts any fine or fancy gliding, there is the very real danger that, +in his inexperience, he may lose forward speed to such an extent that +his controls become inoperative, and his machine threatens to +side-slip. One's ear should, apart from the inclination of the machine, +and the sensation of the descent, help one materially in judging the +speed of a glide. There is a "swish" that comes to the ear, now the +engine is no longer making its clamour, which gives a guide to the +pace of one's downward movement. Aviators who are skilled, and have +done a large amount of flying, are able to judge with accuracy, by the +ear alone and without the aid of a mechanical indicator, what their +speed is as they pass through the air.</p> + +<p class="illustration"><a name="facing_page_50" id="facing_page_50"></a> +<img src="images/facing_page_50.jpg" alt="PUPIL AND INSTRUCTOR IN FLIGHT (3)." width="500" height="253"></p> + +<p class="caption">PUPIL AND INSTRUCTOR IN FLIGHT (3).<br> +<i>Photo by Topical Press Agency.</i> +<br> +<br>Here the pupil is descending in a glide with his engine stopped, +the cylinders of the rotary motor being clearly visible.</p> + +<p>Having held his machine firmly on its glide, till it is quite near the +surface of the aerodrome, the pupil has next to think of making a neat +contact with the ground. The art here is, at a moment which must be +gauged accurately, to check the descent of the machine by a movement +of the elevator—to "flatten out," as the expression goes. If the +movement is made neatly the craft should, when only a few feet from +the ground, change from a descent into horizontal flight, and continue +on this horizontal flight for a short distance, losing speed naturally +each moment—seeing that there is no driving power behind it—and so +losing altitude also through its decrease in speed, until its wheels +come lightly in contact with the ground, and it runs forward and then +stands still. What the novice may do, if he is not careful, is to +"flatten<span class="pagenum"><a name="Page_52" id="Page_52">52</a></span> out" when he is too high above the ground. The result is that +the machine slows up till it stands still in the air, robbed of its +speed, and then makes what is called a "pancake" landing: it descends +vertically, that is to say, instead of making contact with the ground +at a fine angle and with its planes still supporting it; and the +effect of such a "pancake," if the machine comes down with any force, +may be that the landing-chassis is damaged, or perhaps wrecked. But as +a rule, remembering that he has careful instruction to guide him +before he attempts a gliding descent, the pupil masters the art of +landing without difficulty, and without mishap.</p> + +<p>Now, after repeating perhaps certain of his evolutions, at the +discretion of his instructor, in order to make sure that he can +accomplish them with ease, the pupil is ready for the tests which will +give him his certificate of proficiency.</p> + +<h2><a name="ch6" id="ch6"></a>CHAPTER VI</h2><span class="pagenum"><a name="Page_53" id="Page_53">53</a></span> + +<h3>THE TEST FLIGHTS</h3> + +<p><span class="smallcaps">The</span> sport of aviation is controlled throughout the world, and flying +tests and events of a competitive character are governed, by the +International Aeronautical Federation. To the deliberations of this +central authority are sent delegates from the Aero Clubs of various +countries; and to these Aero Clubs, each in its respective country, +falls the task of governing flight, according to the rules and +decisions of the central authority. In Britain, controlling aviation +in the same way that the Jockey Club controls the Turf, we have the +Royal Aero Club of the United Kingdom; and it is this body, acting in +its official capacity, which grants to each new aviator, after he has +passed certain prescribed tests, a certificate which proclaims him a +pilot of proved capacity, and without which it is impossible for him +to take part in any contests held under the auspices of the Club. The +certificate, which is of a convenient size for carrying in the pocket, +contains a photograph of the pilot for purposes of identification, and +specifies also the rules under which the certificate is issued and +held.</p> + +<p>The theory of these tests, as imposed by the Club before it grants its +certificates, is that the novice should—so far as is possible in one +or two flights, made over a restricted area, and in a limited space of +time—be called on to show that he has a full control over a machine +in what may be called the normal conditions of flight. He is asked to +ascend, for instance, and gain a fair flying altitude; then to make +such evolutions as will demonstrate his command over the control +surfaces<span class="pagenum"><a name="Page_54" id="Page_54">54</a></span> of the machine; and finally to show that he can, with his +motor switched off, descend accurately in a vol-plané, and bring his +machine to a halt within a specified distance of a mark. The tests are +set forth, officially, as follows:—</p> + +<div class="blockquote1"><p><i>A and B.</i> Two distance flights, consisting of at least +5 kilometres (3 miles 185 yards) each in a closed circuit, without +touching the ground; the distance to be measured as described +below.</p> + +<p><i>C.</i> One altitude flight, during which a height of at least 100 +metres (328 feet) above the point of departure must be attained; the +descent to be made from that height with the motor cut off. The +landing must be made in view of the observers, without re-starting the +motor.</p></div> + +<p>The rules drafted by the Club to govern these flights +are set forth herewith:—</p> + +<div class="blockquote1"><p>The candidate must be alone in the aircraft during the tests.</p> + +<p>The course on which the aviator accomplishes tests A and B must be +marked out by two posts situated not more than 500 metres (547 yards) +apart.</p> + +<p>The turns round the posts must be made alternately to the right and to +the left, so that the flights will consist of an uninterrupted series +of figures of eight.</p> + +<p>The distance flown will be reckoned as if in a straight line between +the two posts.</p> + +<p>The alighting after the two distance flights in tests A and B shall be +made:—</p></div> + +<div class="blockquote2"><p>(<i>a</i>) By stopping the motor at or before the moment of touching the +ground.</p> + +<p>(<i>b</i>) By bringing the aircraft to rest not more than 50 metres +(164 feet) from a point indicated previously to the candidate.</p></div> + +<div class="blockquote1"><p> All alightings must be made in a normal manner,<span class="pagenum"><a name="Page_55" id="Page_55">55</a></span> and the observers must +report any irregularity.</p></div> + +<p>These flights as specified to-day, though they present no difficulty +to the pupil who has been well trained, are more stringent than they +were in the first scheme of tests as prescribed by the Club, and as +enforced for several years. In those early rules the distances were +the same as they are to-day, but in the altitude flight the height +required was only 50 metres (164 feet)—just half the height specified +to-day. It was not laid down, either, in the first rules, that the +engine should be stopped in this altitude flight when at the maximum +height, and that the descent should be made in a complete vol-plané, +without once re-starting the motor. As originally framed, indeed, the +rule as to the control of the engine in this altitude test was the +same as in regard to the distance flights—<i>i.e.</i>, that it should be +stopped "at or before the moment of touching the ground." What the +present rule means, in this respect, is that the pupil must be really +proficient at making a vol-plané, without any aid at all from his +engine, before he can hope to pass the test; and such a proved +skill—say in the making of his first cross-country flight, should his +engine fail suddenly—may spell the difference between a safe or a +dangerous landing.</p> + +<p>The test flights for the certificate, undertaken only in such weather +conditions as the pupil's instructor may think suitable, are watched +by official observers appointed by the Royal Aero Club. It is the +business of these observers, when the prescribed flights have been +made, to send in a written report concerning them to the Club; and +acting on this report, after it has been considered and shown to be in +order, the Club issues to the pupil his numbered certificate. With the +successful passing of his tests the pupil's tuition is at an end. He +is regarded no longer as a novice, but as a qualified pilot.</p> + +<h2><a name="ch7" id="ch7"></a>CHAPTER VII</h2><span class="pagenum"><a name="Page_56" id="Page_56">56</a></span> + +<h3>PERILS OF THE AIR</h3> + +<p><span class="smallcaps">There</span> are people, very many people, who still regard flying as an +undertaking of an unreasonable peril, essayed mainly by those who are +in quest of money, notoriety, or sensation at any price. Such +people—still to be met with—have one mental picture, and one only, +of the flight of an aeroplane. They imagine a man in the air—and this +mere idea of altitude makes them shudder; and they picture this man in +a frail apparatus of wood and wire, capable of breaking to pieces at +any moment; or even if it does not break, needing an incessant +movement of levers to maintain it in a safe equilibrium; while they +reckon also that, should the engine of the machine suffer any +breakdown, the craft will drop to earth like a stone. Prejudice dies +hard; harder no doubt in England than in other countries. There are +still people, not few of them but many, who would be ready to declare, +offhand, that one aeroplane flight in six ends in a disaster.</p> + +<p>It is a truism, but one that has a peculiar truth in aviation, to say +that history repeats itself. To-day we find large numbers of people +who still cherish the opinion that—save perhaps when on service in +war—it is nothing less than criminal foolishness for men to ascend in +aeroplanes. That attitude of mind persists; the growing safety of +flight has not affected it to any appreciable degree. But those eager +for the progress of aviation need not despair, or imagine that their +particular industry is being treated with any exceptional +disapprobation. They have only to look back<span class="pagenum"><a name="Page_57" id="Page_57">57</a></span> a little in our history, +no great distance, and read of the receptions that were accorded the +first pioneers of our railways. Public meetings of protest have not +been held to condemn aviation; yet they were frequent in the days when +the first railways were projected. Vast indignation was indeed aroused; +it was declared to be against all reason, and a matter of appalling +risk, that people should be asked to travel from place to place in +such "engines of destruction." But the railways managed to survive +this storm. They were placed here and there about the country; they +were improved rapidly; and it would be hard, to-day, to find a safer +place than the compartment of a railway train.</p> + +<p>Motor-cars, when their turn came, had to go through a similar ordeal. +There was the same indignation, the same chorus of protest; and when +the first of the pioneers, greatly daring, began actually to drive +their cars on the public highway, there were people who believed, and +who declared forcibly, that to permit such machines on our roads was +the crime of the century. Had not these pioneers struggled valiantly, +sparing neither time nor money, it is possible that the motor-car +might have been driven from the highway. But here again progress, +though it was retarded, could not be checked. The motor-car triumphed. +It grew rapidly more reliable, more silent, more pleasing to the eye; +and to-day it glides in thousands along our roads, a pleasure to those +who occupy it, a nuisance neither to pedestrians nor to other wheeled +traffic; more under control when it is well driven, and more ready to +stop quickly when required, than any horsed vehicle which it may have +replaced. At one time the papers were full of such headlines as: +"Another Motor-car Accident." Each small mishap received prominent +attention: and to the majority of people it seemed the wildest folly +to travel in such vehicles.<span class="pagenum"><a name="Page_58" id="Page_58">58</a></span> Yet to-day—such is progress—these same +people ride in a motor-car, or a motor-cab, quite as a matter of +course and without a thought of risk.</p> + +<p>When one discusses flying and its dangers, it is essential to maintain +an accurate sense of proportion. In the very earliest days, for +instance, it must be realised that the few men who then flew—they +could be numbered on the fingers of one hand—exercised the greatest +caution. They did not fly in high winds; they treated the air, +realising its unknown perils, with a very great and a very commendable +respect. Thus it was that thousands of miles were flown, even with the +crudest of these early machines, and with motors that were constantly +giving trouble, without serious accident. But after this, and very +quickly, the number of airmen grew. New aviators appeared every day; +contests were organised extensively; there were large sums of money to +be won, provided that one pilot could excel another. And the spirit of +caution was abandoned. Even while they were still using purely +experimental machines—craft of which neither the stability nor the +structural strength had been tested adequately—there grew a tendency +among airmen to fly in higher winds, to subject their machines to +greater strains, and to attempt dangerous manœuvres so as to please +the crowds who paid to see them fly.</p> + +<p>It was not surprising, therefore, that flying entered upon an era of +accidents. Such disasters were inevitable—inevitable, that is to say, +in view of the tendencies that then prevailed; though it is a +melancholy reflection that, had men been content to go ahead with the +same slow sureness of the pioneers, many of those lives which were +lost could have been saved.</p> + +<p>To the public, not aware exactly of all that was going on, it appeared +as though the navigation of the air, instead of growing safer, was +becoming more dangerous. There were suggestions, indeed, made<span class="pagenum"><a name="Page_59" id="Page_59">59</a></span> quite +seriously and in good faith, that these endeavours to fly should cease; +that the law should step in, and prevent any more men from risking +their lives. What people failed to realise, when they adopted this +view, was that instead of one or two men flying there were now +hundreds who navigated the air; that flights in large numbers were +being made daily; that thousands of miles instead of hundreds were +being traversed by air—and often under conditions the pioneers would +have considered far too dangerous. These facts, had they been realised, +would have shown people what was actually the true state of affairs; +that, though accidents seemed numerous, and were indeed more frequent +than they had been in the earliest days of flying, they were as a +matter of proportion, reckoning the greater number of men who were +flying, and the thousands of miles which were flown, growing steadily +less frequent.</p> + +<p>There was this important fact to be reckoned with also. Each accident +that happened taught its lesson, and so made for future safety. A +considerable number of those early accidents can, for instance, be +traced to some structural weakness in a machine. The need in an +aircraft then, as now, was lightness; and in those days designers and +builders, owing purely to their inexperience, had not learned the art, +as they have to-day, of combining lightness with strength. So it was +that, as more powerful motors began to be fitted to aeroplanes, and +greater speeds were attained, it happened sometimes, when a machine +was being driven fast through a wind, that a plane would collapse, and +send the machine crashing to the ground; or in making a dive, perhaps, +either of necessity or to show his skill, a pilot would subject his +machine to such a strain that some part of it would break.</p> + +<p>From such disasters as a rule, greatly to be regretted though they +were, the industry emerged so much the wiser. The strength of machines +was increased;<span class="pagenum"><a name="Page_60" id="Page_60">60</a></span> the engines which drove them were rendered more +reliable; and gradually too, though none too rapidly, the airmen who +piloted them grew in knowledge and skill. But all this time, while +flying was being made more safe, there were accidents frequently for +the papers to report; and this was due entirely to the fact that there +were now thousands of men flying, where previously there had been +fifties and hundreds. The public could not realise how rapidly the +number of airmen had grown; that practically every day, at aerodromes +scattered over Europe, flights were so frequent that they were +becoming a commonplace. It was in 1912, as one of its many services to +aviation that the Aero Club of France was able to show, by means of +statistics which could not be questioned, that for every fatality +which had occurred in France, during that particular year, a distance +of nearly 100,000 miles had been flown in safety.</p> + +<p>The cause of many of the early accidents was, as we have suggested, +the breakage of some part of a machine while in flight. In an analysis +for instance of thirty-two such disasters, it was shown that fourteen +were due to the collapse of sustaining planes, control-surfaces, or +some other vital part of a machine. And this risk of breakage in the +air was increased, in many cases, by the building of experimental +machines by men who had no qualifications for their task, and who +erred only too frequently, in their desire to attain lightness, on the +side of a lack, rather than an excess, of structural strength.</p> + +<p>There are many cases, unfortunately, that might be cited; but one may +be sufficient here. A man with an idea for a light type of biplane, a +machine designed mainly for speed, had an experimental craft +built—this was in the pioneer days of 1909—and insisted on fitting +to it a motor of considerable power. It was pointed out to him that +his construction was not<span class="pagenum"><a name="Page_61" id="Page_61">61</a></span> sufficiently strong, in view of the speed at +which his machine would pass through the air. But he was of the quiet, +determined, self-opinionated type, who pursued his own way and said +little. He did not strengthen his constructional, and he began a +series of flying tests. In the first of these, which were short, the +planes stood up to their work, and the fears of the critics seemed +groundless. But a day came when, venturing to some height, the aviator +encountered a strong and gusty wind; whereupon one of his main-planes +broke, and he fell to his death.</p> + +<p>As a contrast to this tragedy, and a welcome one, there is a humorous +story, that is true, told of one experimenter. His knowledge of +construction was small, but what he lacked in this respect he made up +for in confidence; and he built a monoplane. This was in the days just +after the cross-Channel flight, and experimenters all over the world +were building monoplanes, some of them machines of the weirdest +description. The craft built by this enthusiast seemed all right in +its appearance; nothing had been spared, for instance, in the way of +varnish. When wheeled into the sun, for its first rolling test under +power, it looked an imposing piece of work. Friends were in attendance, +photographers also; and the would-be aviator was in faultless flying +gear. Mounting a ladder, which had been placed beside the machine, he +allowed his weight to bear upon the fusilage, and proceeded to settle +himself in his seat. But he, and the onlookers, were startled as he +did so by an ominous cracking of wood. It grew louder; something +serious and very unexpected was happening to the machine. As a matter +of fact, and just as it stood there without having moved a yard, the +whole of the flimsy structure parted in the middle, and the machine +settled down ignominiously upon the ground, its back broken, and with +the discomfited inventor struggling<span class="pagenum"><a name="Page_62" id="Page_62">62</a></span> in the <i>débris</i>.</p> + +<p>It was far from easy, in the early days, for even an expert +constructor to calculate the strains encountered under various +conditions of flight. In wind pressure, under certain states of the +air, there are dangerous fluctuations—fluctuations which, even with +the knowledge we possess to-day, and this is far from meagre, exhibit +phenomena concerning which much more information is required. Machines +have collapsed suddenly, while flying on a day when the wind has been +uncertain, and have done so in a way which has suggested that they had +encountered, suddenly, a gust of an altogether abnormal strength. +Occasionally, though research work in this field is extremely +difficult, it has been possible to gain data as to the existence of +conditions, prevalent as a rule over a small area, which would spell +grave risk for any aeroplane which encountered them. There is a +strange case, verified beyond question, which occurred during some +tests with man-lifting kites at Farnborough. These kites are strongly +built, and withstand as a rule extremely high winds. On this +particular day a kite, when it had reached a certain altitude, was +seen to crumple up suddenly. The wind did not seem specially +strong—not at any rate on the ground; and there appeared no reason +for the breakage of the kite. Another was sent up; but the same thing +happened, and at the same altitude. Then the officer who was in charge +of the kites sent for a superior. A third kite was flown to see what +would happen. This one broke exactly as the others had done, and at +just the same height—about five hundred feet. Precise data could not +be gained as to this phenomenon; but the breaking of these +kites—which had withstood extremely high pressure in previous +tests—was reckoned to be due to the fact that, when they reached a +certain point in the air, they were subjected to the violent strain of<span class="pagenum"><a name="Page_63" id="Page_63">63</a></span> +a sudden and complete change in the direction of the wind. To the +pilot of an aeroplane, entering without warning some such area of +danger, the result might naturally be serious in the extreme.</p> + +<p>The air has been, and is still, an uncharted sea. It does not flow +with uniformity over the surface of the earth. It is a constantly +disturbed element, and one that has the disadvantage of being +invisible. An aviator cannot see the dangerous currents and eddies +into which he may be steering his craft; and so it was not surprising, +in those days when aircraft were frailer than they should have been, +and cross-country flights were first being made, that machines broke +often while in flight and that the airman's enemy, the wind, claimed +many victims.</p> + +<p>Wind fluctuations that are dangerous, those which possess for one +reason or another an abnormal strength, are encountered frequently +when a pilot is fairly near the earth; and his peril is all the +greater in consequence. On a windy day, one on which there are heavy +gusts followed by comparative lulls, it is when he is close to the +ground, either in ascending or before alighting, that a pilot has most +to fear. If he is well aloft, with plenty of air space beneath him, +and particularly if he has a machine that is inherently stable, he has +little to fear from the wind; save, perhaps, should his engine fail +him, or should he find—as has been the case in war flying—that the +force of the wind, blowing heavily against him, and reducing the speed +of his machine, has prevented him from regaining his own lines before +his petrol has become exhausted. The modern aeroplane, when its +engine-power is ample, and it is at a suitable altitude, can wage +battle successfully even with a gale. But it must rise from the earth +when it begins a flight, and return to earth again when its journey is +done; and here, in the areas of wind that are disturbed by hills, +woods, and contours<span class="pagenum"><a name="Page_64" id="Page_64">64</a></span> of the land, there are often grave dangers. The +wind at these low altitudes blows flukily. Its direction may be +affected, for instance, owing to the influence of a hill or ridge. A +side gust, blowing powerfully and unexpectedly against a machine, just +as it is nearing the ground before alighting, may cause it to tilt to +such an angle that it begins a side-slip. If the craft was +sufficiently high in the air, when this happened, the pilot would be +able, probably, to convert the side-slip into a dive, and the dive +into a renewal of his normal flight. But if such a side-slip begins +near the ground, and there is an insufficient amount of clear space +below the machine, it may strike the ground in its fall, and become a +wreck, before there is time for the pilot, or for the machine itself, +to exercise a righting influence. The fact that a craft may be forced +temporarily from its equilibrium, say by a side-slip, is known now to +represent no great risk for the airman, granted always that he has the +advantage of altitude. The machine, in such circumstances, falls a +certain distance. This is inevitable, and for the reason that it must +regain forward speed—which it has lost temporarily in its +side-slip—before its own inherent stability can become effective, or +its pilot regain influence over his controls. And it is this +unavoidable descent, this short period during which the machine is +recovering its momentum, and during which the pilot has no power of +control, that represents in a heavy wind the moments of peril, should +a pilot enter an area of disturbance just as he nears the ground.</p> + +<p>An aeroplane, when it sets out to fly in bad weather, may be likened +to a boat that is being launched from a beach upon a rough and stormy +sea. It is the waves close inshore, which may raise his craft only to +dash it to destruction, that the boatman has chiefly to fear; and for +the aviator, when he leaves the land and embarks upon the aerial sea, +or when he returns again<span class="pagenum"><a name="Page_65" id="Page_65">65</a></span> from this element and must make his contact +with the earth, there lurks a risk that, caught suddenly by an air +wave, and with insufficient space beneath his machine, he may be +forced into a damaging impact with the ground. But the skill of +designers and constructors, to say nothing of the growing experience +of aviators, is working constantly towards a greater safety.</p> + +<p>Of the risk attached to engine failure, when he is piloting a craft +fitted with only one motor, an airman is reminded frequently, not only +from his own experience, but from that of other flyers. With the +aeroplane engine, even with types that have gained a high average of +reliability, there are many possibilities of a slight mishap—each of +them sufficient, for the moment, to put an engine out of action—that +the pilot who is flying across country must, all the time he is in the +air, have at the back of his mind the thought that at any moment, and +perhaps without any warning, he may find that his motive power has +gone. A magneto may fail temporarily; an ignition wire or a valve +spring break. The aeroplane engine of to-day is, of course, an +infinitely more reliable piece of apparatus than it was in those early +days when Henry Farman, working with extraordinary patience at +Issy-les-Moulineaux, was endeavouring—and for a long time without +success—to make the motor in his Voisin biplane run for five +consecutive minutes without breakdown. The war has shown us, and under +working conditions which have been exceptionally trying, how reliable +the aero-motor has become. But until duplicate plants have been +perfected, and more than one motor is fitted to aircraft as a matter +of course, there must always be this risk of failure.</p> + +<p>In the mere stoppage of a motor no great danger is implied. The pilot +must descend; that is all. His power gone, he must glide earthward. +But where the risk does lie, in engine failure, is that it may occur +at a<span class="pagenum"><a name="Page_66" id="Page_66">66</a></span> moment when the airman is in such a position, either above +dangerous country or while over the sea, that he cannot during his +glide reach a place of safety. A study of flying will show how awkward, +and how perilous on many occasions, has been the stoppage of a motor +while a machine is in the air. Two historic instances, though they did +not, fortunately, end in a loss of the pilot's life, were the +compulsory descents into the Channel made by the late Mr. Hubert +Latham, during his attempts, in 1909, to fly from Calais to Dover. In +both these cases—once when only a few miles from the French shore, +and on the second occasion when the aeroplane was quite near its +destination—the motor of the Antoinette monoplane failed suddenly, +and the aviator could do nothing but plane down into the water. On the +first occasion he alighted neatly, suffering no injury, and being +rescued by a torpedo boat; but in the second descent, striking the +water hard, he was thrown forward in his seat and his head injured by +a strut.</p> + +<p>Less fortunate, in a case of presumed engine failure that will become +historic, was Mr. Gustave Hamel. Eager to reach Hendon, so as to take +part in the Aerial Derby on May 23rd, 1914, his great experience of +Channel flying induced him to risk the crossing with a motor which, on +his flight from Paris to the coast, had not been running well. His +monoplane was a fast machine, and the flight across Channel would have +taken him less than half an hour. But at some point during the +crossing, it seems obvious, his engine failed him, and he was unable +to prolong his glide either to gain the shore, or the vicinity of a +passing ship. His monoplane was never recovered; but the body of the +aviator—whose loss was mourned throughout the flying world and by the +general public as well—was discovered by some fishermen while +cruising off the French coast, and identified by means of a map, +clothing, and an<span class="pagenum"><a name="Page_67" id="Page_67">67</a></span> inflated motor-cycle tyre; the last-named being +carried by the airman round his body to act as an improvised life-belt.</p> + +<p>Engine failure, though a fruitful cause of minor accidents, and of the +breakage of machines, has led to few fatalities; and this has been due +very largely to the fact that, though machines have descended under +dangerous circumstances, and have been wrecked in a manner that would +appear almost certain to kill their occupants, the pilots and +passengers have, as a matter of fact, escaped often with no more than +a shock or bruises. An aeroplane does not strike the ground with the +impact of a hard, unyielding structure. It is essentially frail in its +construction; and this frailness, though it spells destruction for the +machine in a bad descent, provides at the same time an element of +safety for its crew. Take the case for instance of a machine falling +sideways, and striking the ground with one plane or planes. These +planes, built of nothing stronger as a rule than wood, crumple under +the impact. But in their collapse, which is telescopic and to a +certain extent gradual, a large part of the shock is absorbed. By the +time the fusilage which contains the pilot touches ground, the full +force of the impact is gone. And it is the same, often, if a machine +makes a bad landing, say on awkward ground, and strikes heavily +bow-first. Granted that the occupants of the machine are well-placed, +and prevented by retaining belts from being flung from the machine, +they should escape injury from the fact that there is so much to be +broken, in the way of landing-gear and other parts, before the shock +of the impact can reach them in their seats.</p> + +<p>Had it not been for the capacity of the aeroplane to alight in awkward +places without injury to its pilot, many lives might have been lost +through descents in which motors have failed. Aviators have been +obliged to land in most unsuitable places: on the roofs of<span class="pagenum"><a name="Page_68" id="Page_68">68</a></span> houses, for +instance, in small gardens, and frequently on the tops of trees. If he +finds his engine fail him when he is over a wood or forest, and there +is no chance save to descend upon the trees, a skilled pilot may save +himself as a rule from injury. Planing down, till he is just above the +tree-tops, he will then check suddenly, by a movement of his elevator, +the forward speed of his machine. The craft will come to a standstill +in the air; then, the support gone from its planes owing to the loss +of forward speed, it will sink down almost vertically, and with very +little violence, on to the tops of the trees. The machine itself will +naturally be damaged, seeing that boughs will pierce its wings in many +places, and that one or more of its planes may possibly collapse. But +the net result of such a landing—and this is the point which is +important for the pilot—is that the machine will be caught up and +suspended on the trees, making a comparatively light and gradual +contact, instead of there being any risk of its driving through the +trees and making a heavy impact with the ground.</p> + +<p>Humour, sometimes, may be extracted from such a predicament as engine +failure, though it needs an aviator with a very deeply ingrained sense +of humour to do so. The story is told, however, of a pilot who, flying +across difficult country with a passenger, found that his motor +failed—as they often will—just at a moment when there seemed no +possible landing-point below. Looking over the side of his machine, +and glancing quickly here and there, the aviator saw no alternative +but to bring his craft down in an orchard that lay below. Pointing +downward, to acquaint his passenger with their unpleasant situation, +and to call his attention also to the orchard, the pilot said with a +smile:</p> + +<div class="blockquote1">"I hope you're fond of apples!"</div> + +<p>There is a risk in engine failure which has been emphasised more than +once; and it is that which may attend the pilot who, while prolonging +a glide in order<span class="pagenum"><a name="Page_69" id="Page_69">69</a></span> to reach some landing-point, may be struck by a gust, +or enter some area of disturbed wind, just before he reaches the +ground and while his machine, moving slowly, is not in a position to +respond effectually to its controls. In one case an aviator, +struggling back towards the aerodrome with a motor which was not +giving its power, found that it stopped suddenly when he was not far +from a wood. Beyond the wood, which stood on a ridge, there was a +stretch of grassland. Endeavouring to reach this promised +landing-point, and holding his machine on a long glide, the airman +came across above the trees. He had almost reached his goal when his +machine entered a sudden down-current of wind—occasioned, no doubt, +by the proximity of the trees and ridge. Caught by this eddy, with no +motive power to help him and very little speed on his machine, the +pilot could not check its sudden dive; and the craft struck ground so +heavily that both he and his passenger were killed.</p> + +<p>We have mentioned previously, as a fruitful cause of accident, that +structural weakness of machines which has led, when conditions have +been unfavourable, to a sudden collapse in the air. But apart from +weakness in construction, and notably in accidents with early-type +machines, there was the risk attached to mistakes in design, which +produced machines which were unstable under certain conditions—and +the dangers also which were due to inefficient controlling surfaces. +It was no uncommon thing, in pioneer days, for a machine to be built +which would not respond adequately to its elevator or rudder; though +this unpleasant fact might not be discovered by the pilot until he was +actually in flight, and perhaps at some distance from the earth. In +one case, which is authenticated, a two-seated monoplane of a new type +was tested at first in a series of straight flights, and found to be +promising in its behaviour. A skilled<span class="pagenum"><a name="Page_70" id="Page_70">70</a></span> pilot then took charge of it, +and, carrying a passenger, proceeded to some more ambitious flights. +Steering the machine away across the aerodrome, and flying at a low +elevation, he approached a belt of woods. The machine was too near the +ground to pass over the tops of the trees; so the aviator decided to +make a turn, and fly parallel with the wood. But when he put his +rudder over, so as to bring the machine round in a half-circle, he +found to his dismay that there was no response. In the design of the +machine, as it was found afterwards, the rudder had been made too +small: it would not steer the machine at all. In the little space that +was left him, and to avoid crashing into the trees, the pilot had to +bring his craft to earth in such an abrupt dive that it was wrecked +completely. He and the passenger, though, escaped unhurt.</p> + +<p>Carelessness has, fairly frequently, played its part in aeroplane +disasters. Sometimes a pilot has been careless, or perhaps in a hurry, +and has failed to locate some defect which, had it been seen and +attended to, would have saved a disaster when a machine was in flight. +Such inattention, which is sufficiently dangerous in the handling of +any piece of mechanism, is deadly in its peril when those who are +guilty of it navigate the air. A man who brings out a machine time +after time, and ascends without examining it carefully, is adding +vastly to the risks that may attend his flight; and the same remark +will apply to the carelessness of mechanics; though as a class, in +view of the arduous nature of their work, and of the long hours they +have frequently to be on duty, with no more than hasty intervals for +rest, their average of care and accuracy is very high. But there have +been cases—mostly in the past though—in which a machine has +developed a structural defect, or some defect say in its control gear, +which ought to have been observed by its mechanics, but which has not +been so detected, and has led to a<span class="pagenum"><a name="Page_71" id="Page_71">71</a></span> catastrophe in flight. With +machines built lightly, and subjected to heavy strains when at high +speeds, it is vital that the inspection of such craft, that the +examination of every detail of them, should be carried out in a spirit +of the greatest care. The fraying through of a control wire, unnoticed +by those in charge of a machine, has been sufficient to cause a +disaster; while carelessness in overhauling a motor, a task of supreme +importance, seeing that its engine is the heart of an aeroplane, has +been another cause of accident. It is vital that, when an airman +ascends, both his machine and his motor should be in perfect working +trim. He himself, before he flies, and after his aeroplane has been +wheeled from its shed, should make it a habit to look over the machine, +so as to impose his own personal check upon the work his mechanics +have done.</p> + +<p>Even when every care has been taken, and a machine ascends in perfect +trim, there is the human factor, represented by the pilot, which must +be considered always in a study of aeroplane accidents. There is often, +when a catastrophe seems imminent, a choice of things that may be +done. If an engine fails, for instance, under awkward circumstances, +the pilot may have, say, three courses open to him in regard to his +descent. Two may spell disaster and the third safety. It is here that +the innate judgment of a pilot, combined with his experience, will +tell its tale. But this personal element in flying, and particularly +in regard to an accident, is often a very difficult one for which to +make allowances.</p> + +<p>The whole problem of aeroplane disasters is, to the analyst, one of +unusual complexity. Take for example the case of a pilot who is flying +alone in his machine, and at an altitude of several thousand feet. +Suddenly something happens; the machine is seen to fall and the pilot +is killed. Experts come to examine the aircraft,<span class="pagenum"><a name="Page_72" id="Page_72">72</a></span> but it is wrecked so +completely that little which is reliable can be gathered from any +inspection; while the man who could explain what has happened—the +pilot of the machine—is dead. The statements of eyewitnesses, when +taken on such occasions, are often misleading. One person heard a +crash, and saw something fall away from the machine. Another declares +the engine stopped suddenly and that the machine "fell like a stone." +Another says he is sure he saw one of the wings fold upwards and the +machine swing and fall. And so on. It is extremely difficult, even for +a technical eye-witness, to be sure of what he sees when things happen +quickly and at a distance from him; while the statements of +non-technical people, who are not trained in observation, are +generally so unreliable as to be useless.</p> + +<p>It has happened often therefore, far too often, in aeroplane +fatalities that have happened from time to time, that the cause of +such accidents has, even after the most careful investigation, had to +be written down a mystery. But in more than a few cases, though the +evidence has been far from conclusive, it has been considered that a +pilot has been guilty of some error of judgment. There were puzzling +instances, notably in the early days of flying, when airmen began +first to make cross-country flights, of engines being heard to fail +suddenly, and machines seen to fall to destruction. That engines +should break down was not surprising; they were doing so constantly; +but there was no reason why, even if they did fail, a machine should +fall helplessly instead of gliding. But what was thought to have +happened, in more than one of these cases, was that the pilot, through +an error of judgment, had failed to get down the bow of his machine +when his motor gave signs of stopping. The craft concerned were, it +should be mentioned, "pusher" biplanes; and the same rule applied to +them, in cases of engine<span class="pagenum"><a name="Page_73" id="Page_73">73</a></span> failure, as has been explained in a previous +chapter, and as is emphasised nowadays in the instruction of the +novice. But in those days the beginner had frequently to learn, not +from wise tuition, but from bitter experience; and he was lucky, often, +if he learned his lesson and still retained his life. On certain +early-type biplanes, for instance, machines with large tail-planes, +and engined as a rule by a motor which was giving less than its proper +amount of power, it was most dangerous for a pilot if, on observing +any signs of failing in his engine, he sought to fly on in the hope +that the motor would "pick up" again, and continue its work. Directly +there was a tendency of the motor to miss-fire, or lessen in the +number of its revolutions per minute, the consequent reduction of the +propeller draught, as it acted on the tail of the machine, would cause +this tail to droop, and the machine to assume very quickly a dangerous +position. And when once it began to get tail-down, as pilots found to +their cost, there was nothing to be done. The machine lost what little +forward speed it had, and either fell tail-first, or slipped down +sideways. Such risks as these, which were very real, were rendered +worse owing to the fact that, in much of the cross country flying of +the early days, pilots flew too low. They lacked the confidence of +those who followed them, and were too prone to hug the earth, instead +of attaining altitude. It was not realised clearly then, as it is now, +that in height lies safety. And so when a machine lost headway through +engine failure, and was not put quickly enough into a glide, it +happened often that it had come in contact with the earth, and had +been wrecked, before there was any chance for the pilot to regain +control, or for the machine itself to exhaust its side-slip, and come +back to anything like a normal position.</p> + +<p>But the failure of the human factor in flying, the lack of skill of a +pilot that may lead to disaster, is shown<span class="pagenum"><a name="Page_74" id="Page_74">74</a></span> by statistics to play no +more than a small part, when accidents are studied in numbers and in +detail. Some time before the war, in an analysis of the accidents that +had befallen aviators in France—accidents concerning which there was +adequate data—it was shown that only 15 per cent. of them could be +attributed to a failure in judgment or skill on the part of the pilot.</p> + +<p>Apart from errors, however, in what may be called legitimate piloting, +there have been regrettable accidents due to trick or fancy flying. +Putting a machine through a series of evolutions, to interest and +amuse spectators, is not of course in itself to be condemned. In such +flying, and notably for instance in "looping the loop," facts were +learnt concerning the navigation of the air, and as to the apparently +hopeless positions from which an aeroplane would extricate itself, +which were of very high value, from both a scientific and practical +standpoint. Public interest in aviation was increased also by such +displays; and it is very necessary that there should be public +interest in flying, seeing that it is the public which is asked to pay +for the development of our air-fleets. But the man who undertakes +exhibition flying needs not only to be a highly-skilled pilot, but a +man also of an exceptional temperament—a man whose familiarity with +the air never leads him into a contempt for its hidden dangers; a man +who will not, even though he is called on to repeat a feat time after +time, abate in any way the precautions which may be necessary for his +safety. In looping the loop, for instance, or in upside-down flying, +it is necessary always that the aeroplane should be at a certain +minimum height above the ground. Then, should anything unexpected +happen, and the pilot lose command temporarily over his machine, he +knows he has a certain distance which he may fall, before striking the +ground; and during this fall the natural stability of his machine, +aided by his own<span class="pagenum"><a name="Page_75" id="Page_75">75</a></span> operation of the guiding surfaces, may bring it back +again within control. But if he has been tempted to fly too near the +ground, and has ignored for the moment this vital precaution, and if +something happens for which he is not prepared, then the impact may +come before he can do anything to save himself.</p> + +<p>In the early days of flying, when aviators attempted an acrobatic feat, +they ran a far heavier risk than would be the case to-day; and for +the simple reason that their machines, not having a strength +sufficient to withstand any abnormal stresses, were likely to collapse +in the air if they were made to dive too rapidly, or placed suddenly +at any angle which threw a heavy strain on their planes. A machine for +exhibition flying needs to be constructed specially; but this was not +realised till accidents had taught their lesson.</p> + +<p>It is a regrettable fact, one which emerges directly from a study of +aeroplane accidents, that many of them might have been avoided had men +been content to follow warily in the footsteps of the pioneers, and +not run heavy risks till they themselves, and the machines they +controlled, had been prepared, by a long period of steady flying, to +meet such greater dangers. The first men who flew realised fully the +risks they ran. But when flying became more general, and men found +machines ready to their hands, machines which it was a simple matter +to learn to fly, this early spirit of caution was forsaken, and feats +were attempted which brought fatalities in their train, and which +seemed to emphasise the risks of aviation, and did it the very bad +service that they fixed in the public mind a notion of its dangers, +and prevented men from coming forward to take up flying as a sport.</p> + +<h2><a name="ch8" id="ch8"></a>CHAPTER VIII</h2><span class="pagenum"><a name="Page_76" id="Page_76">76</a></span> + +<h3>FACTORS THAT MAKE FOR SAFETY</h3> + +<p><span class="smallcaps">It</span> has been calculated that nearly half the aeroplane disasters of the +early days were due to a structural weakness in machines, or to +mistakes either in their design, or in such details as the position, +shape, and size of their surfaces. To-day, thanks to science, and to +the growing skill and experience of aeroplane designers and +constructors, this risk of the collapse of a machine in the air, or of +its failure to respond to its controls at some critical moment through +an error in design, has been to a large extent eliminated. That such +risks should be eliminated wholly is, as yet, too much to expect.</p> + +<p>One of the factors making for safety has been the steady growth in the +general efficiency of aircraft: in the curve of their wings which, as +a result largely of scientific research, has been made to yield a +greater lift for a given surface and to offer a minimum of resistance +to their passage through the air; in the power and reliability of +their engines; in the efficiency of their propellers; and in the +shaping of the fusilage of a machine, and in the placing and +"stream-lining" of such parts as meet the air, so as to reduce the +head resistance which is encountered at high speeds. Such gains in +efficiency, which give constructors more latitude in the placing of +weight and strength where experience show they are needed, have gone +far to produce an airworthy machine. In the old days, when machines +were inefficient, a few revolutions more or less per minute in the +running of an engine meant all the<span class="pagenum"><a name="Page_77" id="Page_77">77</a></span> difference between an ascent and +merely passing along the ground. But nowadays, through the all-round +increase in efficiency that has been obtained, a machine will still +fly upon its course without losing altitude, and respond to its +controls, even should the number of revolutions per minute of its +engine be reduced considerably.</p> + +<p>When given a greater efficiency in lifting surfaces and +power-plants—and profiting also from the lessons that had been learnt +in the piloting of machines—constructors were able to devote their +attention, and to do so with certainty instead of in a haphazard way, +to the provision of factors of safety when a craft was in flight. With +a machine of any given type, if driven through the air at a certain +speed, it is possible to estimate with accuracy what the normal +strains will be to which it is subjected. But even if such data are +obtained, and the machine given the strength indicated, this factor of +safety is insufficient. It is not so much the normal strains, as those +which are abnormal, that must be guarded against in flight. A +high-speed machine, if piloted on a day when the air is turbulent, may +be subjected to extraordinarily heavy strains; rising many feet in the +air one moment, falling again the next, and being met suddenly by +vicious gusts of wind—in much the same way that a fast-moving ship, +when fighting its way through a rough sea, is beaten and buffeted by +the waves. Air waves have not of course the weight, when they deliver +a blow, that lies behind a mass of water; but that these wind-waves +attain sometimes an abnormal speed, and have a tremendous power of +destruction, is shown in the havoc that is caused by hurricanes.</p> + +<p>It seems astonishing to many people that such a frail machine as the +aeroplane, with its outspread wings containing nothing stronger often +than wooden spars and<span class="pagenum"><a name="Page_78" id="Page_78">78</a></span> ribs, covered by a cotton fabric, should be +capable of being driven through the air at such a speed, say, as 100 +miles an hour, encountering not only the pressure of the air, but +resisting also the fluctuations to which it may be subjected. But, +underlying the lightness and apparent frailty of such a wing, when one +sees it in the workshop in its skeleton form, before it has been +clothed in fabric, there is a skill in construction, and an experience +in the choice, selection, and working of woods, that produces a +structure which, for all its fragile appearance, is amazingly strong. +And the same applies, nowadays, to all the other parts of an +aeroplane. That it should have taken years to gain such strength, and +to reduce so largely the risk of breakage, is not in itself +surprising. Men had to devise new methods in construction—always with +the knowledge that weight must be saved—and to create new factors of +safety, before they could build an airworthy craft.</p> + +<p>To-day, when a man flies, he need have no lurking fear, as had the +pioneers, that his craft may break in the air. Even when it is driven +through a gale, plunging in the rushes of the wind, yet held straining +to its task by the power of its motor, the modern aeroplane can be +relied upon; and not in one detail of its construction, but in every +part. Experience, the researches of science, and the growing skill +with which aircraft are built, stand between the airman and many of +his previous dangers. The aeroplane to-day, one of the structural +triumphs of the world in its lightness and its strength, has a factor +of safety which is sufficient to meet, and to withstand, not merely +ordinary strains, but any such abnormal stresses as it may +encounter—and which may be many times greater than the strains of +normal flight.</p> + +<p>The aviator knows also that his engine, as it gives him power to +combat successfully his treacherous<span class="pagenum"><a name="Page_79" id="Page_79">79</a></span> enemy, the wind, represents the +fruit of many tests and of many failures, and of the spending of +hundreds of thousands of pounds. Many of its defects have revealed +themselves, and been rectified; it is no longer light where it should +have weight of metal, nor weak where it should be strong. So far as +any piece of mechanism can be made reliable, consisting as it does of +a large number of delicate parts, operating at high speed, the +aeroplane motor has been made reliable. But, so long as one motor is +used, there must always, as we have said, remain a risk of breakdown. +It is for this reason that, thanks largely to the stimulus of the +war—which has created a practical demand for such +machines—aeroplanes are now being built, and flown with success, +which are fitted with duplicate motors. With such machines, which give +us a first insight as to the aircraft of the future, engine failure +begins to lose its perils—particularly in regard to war. More than +once during the great campaign, when flying a single-engine machine, +an aviator has found his motor fail him, and has been obliged to land +on hostile soil; with the result that he has been made prisoner. But +with dual-engine machines it has been found that, when one motor has +failed mechanically, or has been put out of action by shrapnel, the +remaining unit has been sufficient—though the machine has flown +naturally at a reduced rate—to enable the pilot to regain his own +lines.</p> + +<p>In peace flying, too, as well as in war, the multiple-engined +aeroplane brings a new factor of safety. If one of his motors fails, +and he is over country which offers no suitable landing-place, the +pilot with a duplicate power-plant need not be concerned. His +remaining unit or units will carry him on. There are problems with +duplicate engines which remain to be solved—problems of a technical +nature—which involve general efficiency, transmission gear, and the +number<span class="pagenum"><a name="Page_80" id="Page_80">80</a></span> and the placing of propellers; but already, though this new +stride in aviation is in its earliest infancy, results that are most +promising have been obtained.</p> + +<p>To those who study aviation, and have done so constantly, say from the +year 1909, one of the most striking signs of progress lies in the fact +that, though unable at first to fly even in the lightest winds, the +aviator of to-day will fight successfully against a 60 miles-an-hour +wind, and will do battle if need be, once he is well aloft, with a +gale which has a velocity of 90 miles an hour. He will ascend indeed, +and fly, in any wind that permits him to take his machine from the +ground into the air, or which the motor of his craft will allow it to +make headway against. And here, though machines are still experimental, +there is removed at one stroke the earliest and the most positive +objection of those who criticised a man's power to fly. When the first +aeroplanes flew the sceptics said: "You have still to conquer the wind, +and that you will never do. Aeroplanes will be built to fly only in +favourable weather, and this will limit their use so greatly that they +will have no significance." But to-day the aviator has ceased, one +might almost say, to be checked or hampered by the wind. If the need +is urgent, as it often is in war, then it will be nothing less than a +gale that will keep a pilot to the ground, provided he has a +sufficiently powerful machine, and a suitable ground from which to +rise—and granted also that he has no long distance to fly. +Wind-flying resolves itself into a question of having ample +engine-power, of being able to launch a machine without accident, and +get it to earth again without mishap; and of being able to make a +reasonable headway against the wind when once aloft; and these +difficulties should solve themselves, as larger and heavier machines +are built.</p> + +<p>Apart from the growing skill of the aviator, which has been bought +dearly, science can now give him a<span class="pagenum"><a name="Page_81" id="Page_81">81</a></span> machine, when he is in a wind, that +needs no exhausting effort to hold it in flight. Craft are built, as a +matter of certainty and routine, which have an automatic stability. +Science has made it possible indeed, by a mere shaping and placing of +surfaces, and without the aid of mechanical devices, to give an +aeroplane such a natural and inherent stability that, when it is +assailed by wind gusts in flight, it will exercise itself an adequate +correcting influence. To understand what this means it should be +realised that, when such a machine is in flight say in war on a +strategical reconnaissance, and carries pilot and passenger, the +former can take it to a suitable altitude and then set and lock his +controls, and afterwards devote his time, in common with that of his +passenger, to the making of observations or the writing of notes. The +machine meanwhile flies itself, adapting itself automatically to all +the differences of wind pressure which, if it had not this natural +stability, would need a constant action of the pilot to overcome. All +he need do is to maintain it on its course by an occasional movement +of the rudder. With such a machine, even on a day when there is a +rough and gusty wind, it is possible for an airman to fly for hours +without fatigue; whereas with a machine which is not automatically +stable, and needs a ceaseless operation of its controls, the physical +exhaustion of a pilot, after hours of flight, is very severe.</p> + +<p>So, already, one sees these factors of safety emerge and take their +place. There is no longer a grave peril of machines breaking in the +air; there need be no longer, with duplicate power-plants, the +constant risk of engine failing; while that implacable and treacherous +foe, the wind, is being robbed daily of its perils.</p> + +<h2><a name="ch9" id="ch9"></a>CHAPTER IX</h2><span class="pagenum"><a name="Page_82" id="Page_82">82</a></span> + +<h3>A STUDY OF THE METHODS OF GREAT PILOTS</h3> + +<p><span class="smallcaps">The</span> masters of flying, and this is a fact the novice should ponder +well, have been conspicuous almost invariably for their prudence. No +matter how great has been their personal skill, they have never lost +their respect for the air; and this is why so many of the great flyers, +after running the heaviest of risks in their pioneer work, have +managed to escape with their lives. What patience and sound judgment +can accomplish, when pitted even against such dangers as must be faced +by an experimenter when he seeks to fly, is shown by an incident from +the early career of the Wright brothers. With one of their gliders, a +necessarily frail machine, and in tests made when they were both +complete novices, they managed to make nearly 1000 glides; and not +once in all those flights, during which they were learning the +rudiments of balance and control, did they have a mishap which damaged +at all seriously their machine.</p> + +<p>These two brothers, Wilbur and Orville, offer to the student of flying, +apart from the historical interest which is attached to their work, a +temperamental study of the greatest interest. Wilbur, who was grave, +judicial—a man of infinite patience and with an exceptional power of +lucid thinking—found in his brother and co-worker, Orville, a +disposition just such as was necessary to strengthen and support him +in his great research; a disposition more vivacious and more +enthusiastic than his, and one which acted as a balance to his own +gravity. The method of these brothers in<span class="pagenum"><a name="Page_83" id="Page_83">83</a></span> first attacking a mass of +data, most of it contradictory—and a large amount of it of little +intrinsic value—and then framing their own research on lines which +they discussed and studied with methodical care, forms a model of +sound judgment for workers in any complex field. Their kite +experiments, their gliders, their refusal to hasten their steps unduly +in the fitting of an engine to their machine, reveal again their +discretion, and that judgment which never failed them. Perseveringly +and unswervingly, exhibiting doggedness without obstinacy, and with +their work illuminated always by the highest intelligence, they moved +surely from stage to stage; and at last, when they fitted a motor to +their machine, such was their knowledge of the air, and of the control +of their craft when in flight, that they were able to make this +crucial step, from a glider to a machine driven by power, without any +breakage of their apparatus or injury to themselves.</p> + +<p>The same self-control marked them when, having demonstrated that men +can ascend in a power-driven machine, and steer such a craft at will, +they dismantled their apparatus and commenced their negotiations with +foreign Governments. Wilbur Wright, too, when he came to France to +give his first public demonstrations, provided by his methods a model +for aviators, either present or future. He resisted all temptations to +make injudicious flights. If he considered the weather conditions at +all unsuitable he said that he would not ascend, no matter who might +have come to see him fly, and that settled the question once and for +all. He was deaf to all pleadings, to all proffered advice. When +conditions were perfectly suitable, and then only, would he have his +craft brought from its shed.</p> + +<p>The same meticulous care, in every flight he made, marked his +preparation of his machine. Motor, controls, propeller-gearing, every +vital part, received<span class="pagenum"><a name="Page_84" id="Page_84">84</a></span> its due attention; and this attention was never +relaxed, no matter how frequently he flew, nor how great was his +success. An observer of one of his early flights at Le Mans has given +us an impression that is typical of this unremitting care. There was a +question of some small adjustment that Wilbur had instructed should be +made to the machine. When the time came to fly, and he was in the +driving-seat waiting for the motor to be started, he called a question +as to whether this detail had been attended to. He was assured it had. +But this was not enough for Wilbur Wright. Climbing from his seat and +walking round the biplane, he made a careful examination for himself, +and then returned quietly to the front of the machine. People who came +to see him fly, and expected some picturesque hero, leaping lightly +into his machine and sweeping through the air, found that reality +disappointed them. This quiet, unassuming man, who slept in his shed +near his aeroplane, and took his meals there also, refused to be fêted +or made a fuss of; while his deliberation in regard to every flight, +and his indifference to the wishes or convenience of those who were +watching him, drove nearly frantic some of those influential people +who, coming in motor-cars and with a patronising spirit, thought the +aviator might be treated rather as a superior mountebank, who would be +only too glad to come out and fly when a distinguished guest arrived.</p> + +<p>M. Louis Bleriot, whose name was next to become world-famous, after +that of the Wrights, and who owed his distinction to his crossing of +the English Channel by air, revealed in his character determination +and courage, and imagination as well. And yet allied to these +qualities—and here lay his temperamental strength—he had a spirit of +quiet calculation and an eery considerable shrewdness. He knew, and was +not afraid of showing that he knew, the full value of caution. And yet +on occasion also—as in the cross-Channel<span class="pagenum"><a name="Page_85" id="Page_85">85</a></span> flight—he was ready to put +everything to the test, and to take promptly and with full knowledge +the heaviest of risks. The motor in his cross-Channel monoplane was an +experimental one of low power, air-cooled, and prone to over-heat and +lose power after only a short period of running. To cross the Channel, +even under the most favourable circumstances, he knew this engine must +run without breakdown for thirty-five or forty minutes. This it had +not done—at any rate in the air—before. There was a strong +probability—and Bleriot knew this better than anyone else—that the +motor would fail before he reached the English shore, and that he +would have to glide down into the sea. It was arranged that a +torpedo-boat-destroyer should follow him, and this afforded an element +of safety. But Bleriot guessed—as was actually the case—that he +would outdistance this vessel in his flight, and soon be lost to the +view of those upon it. And he did not deceive himself as to what might +happen, if his engine stopped and he fell into the water. His +monoplane, as it lay on the surface of the water, would, he knew, +prove a very difficult object to locate by any vessel searching for it; +while it was so frail that it would not withstand for long the +buffeting of the waves. He carried an air-bag fixed inside the +fusilage, it is true; but, in spite of this precaution, Bleriot knew +he ran a very grave peril of being drowned. There was, on the morning +of his flight, another disturbing factor to be reckoned with. The wind, +calm enough when he first determined to start, began very quickly to +rise; and by the time he had motored from Calais to the spot where his +aeroplane lay, and the machine itself was ready for flight, the wind +out to sea was so strong that the waves had become white-capped. But +Bleriot, aware of the value at such moments of decision, had made up +his mind. He knew that, if his engine only served him, his flight +would be quickly made. And so he reckoned<span class="pagenum"><a name="Page_86" id="Page_86">86</a></span> that, even though the wind +was rising, he would be able to complete his journey before it had +become high enough seriously to inconvenience him; and in this +calculation, as events proved, he was right. His motor did its work; +and, though the wind tossed his machine dangerously when he came near +the cliffs of the English coast, he succeeded in making a landing and +in winning the £1000 prize.</p> + +<p>M. Hubert Latham, Bleriot's competitor in the cross-Channel flight, +had that peculiar outlook on life, with its blend of positive and +negative—puzzling often to its owner as well as to the onlooker—that +is called, for the sake of calling it something, the artistic +temperament. He was impulsive, yet impassive often to a disconcerting +extent: extremely sensitive and reserved as a rule, yet on occasion +almost boyishly frank and communicative. He lacked entirely ordinary +shrewdness, or everyday commonsense. He was a man of a deeply romantic +temperament, and this inclined him towards aviation and the conquest +of the air; while in actual piloting he had such a quickness and +delicacy of touch, and such a sure and instinctive judgment of +distance and of speed, that he was undoubtedly a born aviator—one of, +if not the, finest the world has seen. That he did not attain greater +success, from a practical point of view, was due to the fact that he +was without the level-headedness and the business ability which +characterised others of the pioneers. When he was in flight in his +Antoinette—Latham flew that machine and no other—he was a supreme +artist. His machine was beautiful, and his handling of it was +beautiful.</p> + +<p>M. Henri Farman, beyond question, of course, another of the great +pioneers, is a man of imagination and of a highly nervous temperament, +yet possessing at the same time a very pronounced vein of caution. No +success has for an instant caused him to lose his head. At Rheims, in +1909, when he had created a world's<span class="pagenum"><a name="Page_87" id="Page_87">87</a></span> record by flying for more than +three hours without alighting, those who hastened to congratulate him, +after his descent, found him absolutely normal and unmoved. Washing +his hands at a little basin in the corner of the shed, he discussed +very quietly and yet interestedly, and entirely without any +affectation of nonchalance, the details of his flight and the +behaviour of his motor. His attitude was that the flight was something, +yet not a great deal, and that very much more remained to be done; a +perfectly right and proper attitude, one which was just as it should +be, yet one encountered very rarely under such circumstances—human +nature being what it is.</p> + +<p>Farman's patience, his perseverance, were in the very early days what +gave him his first success. With the biplane the Voisins built him, +for example, nothing but his own determination, and his ceaseless work +upon his engine, enabled him to do more with this type of machine than +others had done.</p> + +<p>As the aeroplane increased in efficiency, and in the reliability of +its engine, and was used in cross-country journeys, there came an era +of flying contests, in which large prizes were offered, and in which +airmen passed between cities and across frontiers, and traversed in +their voyages the greater part of Europe. In the making of these +flights, which needed an exceptional determination and skill, allied +also to a perfect bodily fitness, there came into prominence certain +aviators whose precision in their daily flights, passing across +country with the speed and regularity of express trains, won +admiration throughout the world. Prominent among these champions was +the French naval officer, Lieut. J. Conneau, who adopted in his +contests the flying name of "Beaumont." His success and his exactitude, +when piloting a Bleriot monoplane for long distances above unknown +country, guiding himself by map and compass, gave the public an +indication,<span class="pagenum"><a name="Page_88" id="Page_88">88</a></span> for the first time, of what might be accomplished by an +expert airman when flying a reliable machine. Lieut. Conneau's success, +winning as he did several of the great contests one after another, +and the absence of error in his flying from stage to stage, and his +accurate landings upon strange and often badly-surfaced aerodromes, +should provide for the novice in aviation—when the secret of this +success is understood—an object-lesson that is of value.</p> + +<p>This quiet, efficient airman, and his methods in making himself so +competent, afford indeed an interesting study. Here was one who, +suited already by temperament for the tasks he undertook, trained +himself with such care, with such patience, that he attained as nearly +to the ideal as is possible for living man. When he had asked for, and +obtained, permission from the Minister of Marine to study aviation in +all its aspects, he began his task in a spirit that was admirable. "I +was convinced," he wrote afterwards, "that a perfect knowledge of +machines and motors was necessary before one could use them." For +nearly a year, on leaving the sea, he worked to obtain a certificate +as a practical engineer. This gained, he went through a period of +motor-cycling and motor-car driving, varied by flights in captive +balloons and free balloons, and afterwards in airships. Following this +he obtained leave to stay for a time at Argenteuil, and enter the +works of the builders of the Gnome motor. Here he lived the life of a +mechanic, and learned to understand completely the operation of this +famous engine, which he was destined to drive afterwards in his great +flights.</p> + +<p>Presently he went to Pau, in order to obtain his certificate as an +aeroplane pilot. At first, taking his turn with a number of other +pupils, he could only get a few minutes at a time in a machine. But +being a keen observer he found that, by listening to the instructors,<span class="pagenum"><a name="Page_89" id="Page_89">89</a></span> +and watching the flights made, he could pick up useful information +without being in the air; and this led him to the observation that "to +learn to fly quickly, one must begin by staying on the ground."</p> + +<p>He secured in due course his certificate of proficiency, astonishing +the instructors by his skill and sureness in the handling of his +machine. Then followed what might be called an apprenticeship to +cross-country flying. He made constant flights in all weathers, flying +for instance from Pau to Paris, and studying closely not only the +piloting of his machine and the aerial conditions he encountered, but +also the art of using a map and compass, and in finding a path without +deviation from point to point. Improving daily in confidence and skill, +and learning practically all there was to be learned as to the +handling of a Gnome-engined Bleriot, he was able soon to fly under +weather conditions which would have seemed hopeless to a pilot of less +experience; while engine failure and other troubles, which overtook +him frequently on these long flights, taught him to alight without +damaging his machine on the most unpromising ground.</p> + +<p>Now, feeling himself at last competent, he obtained permission to +figure on the retired list, so that he might take part in the aviation +races which were then being organised. Of these great contests Lieut. +Conneau won three in succession—the Paris-Rome Race, in which he flew +928 miles in 21 hours 10 minutes; the European Circuit, in which he +flew 1,060 miles in a total flying time of 24 hours 18 minutes; and +the Circuit of Britain, in which he flew 1,006 miles in 22 hours 26 +minutes. Lieut. Conneau's success, which appeared extraordinary, and +his skill in finding his way across country, which seemed abnormal, +were due as a matter of fact to his assiduous preparation, and to a +temperament which, even under the heavy strains of constant flying, +saved him from errors of judgment or ill-advised<span class="pagenum"><a name="Page_90" id="Page_90">90</a></span> decisions. His +temperament was, indeed, ideal for a racing airman. He was quiet and +collected, with a natural tendency to resist excitement or confusion. +His physique was admirable, and he had that elasticity of strength, +both in body and nerve, which are invaluable to a pilot when on long +flights. Also, and this was of importance, Lieut. Conneau had a +natural cheerfulness of disposition which carried him without +irritation or despondency through those ordeals of weather, and of +mechanical breakdowns and delays, which are inseparable from such +contests as those in which he was engaged.</p> + +<p>A contrast to Lieut. Conneau, both in temperament and method, was his +rival Jules Vedrines—the aviator who, notably in the Circuit of +Britain, flew doggedly against Lieut. Conneau from stage to stage. +Vedrines, who had not had the advantages in tuition that had been +enjoyed by Lieut. Conneau, nor his grounding in technique, was +nevertheless a born aviator; a man of a natural and exceptional skill. +In energy, courage, and determination he was unexcelled; but such +qualities, though of extreme value in a long and trying contest, were +marred by an impetuosity and an excitability which Vedrines could not +master, and which more than once cost him dear. He had not, besides, +as was shown in the Circuit of Britain, that skill in steering by map +and compass which aided Lieut. Conneau so greatly in all his flying.</p> + +<p>A personality of unusual interest was that of the late Mr. S. F. +Cody—a man of a great though untutored imagination, and of an +extraordinary and ceaseless energy. A big man, and one whom it might +be thought would have been clumsy in the handling of an aeroplane, he +piloted the biplanes of his own construction with a remarkable skill. +He flew no other, of course, and this was greatly to his advantage in +actual manipulation. The great pilots who have excelled—one may<span class="pagenum"><a name="Page_91" id="Page_91">91</a></span> +instance again Lieut. Conneau—have concentrated their attention as a +rule on one type of machine, learning all there is to be learned about +this particular craft, and being prepared in consequence, through +their knowledge both of its capacities and weaknesses, for any +contingency that may arise in flight. Another instance of such +specialisation was provided by Mr. Gustave Hamel. M. Bleriot—an +admirable judge in this respect—singled out Mr. Hamel, while this +young man was learning to fly in France, as an aviator of quite +unusual promise; and his prediction was, of course, more than +fulfilled. Devoting himself exclusively to the monoplane, Mr. Hamel +became a pilot whose perfection of control, very wonderful to witness, +was marked strongly by his own individuality. He had beautiful +"hands"—a precision and delicacy on the controls which marked his +flying from that of all others; while his judgment of speed and +distance, which was remarkable, represented natural abilities which +had been improved and strengthened by his constant flying.</p> + +<h2><a name="ch10" id="ch10"></a>CHAPTER X</h2><span class="pagenum"><a name="Page_92" id="Page_92">92</a></span> + +<h3>CROSS-COUNTRY FLYING</h3> + +<p><span class="smallcaps">When</span> a pupil has finished his flying school tests, and has received +his certificate from the Royal Aero Club, he is in a stage of +proficiency which means that he has learned to control an aeroplane +when above an aerodrome and in conditions that are favourable, and +that he may be relied on to make no elementary mistakes. But as to +cross-country flying, with its greater hazards, he is still a novice, +with everything to learn. And so it is to flights from point to point, +generally between neighbouring aerodromes, that he next devotes +himself.</p> + +<p>Aviators have been commiserated with, often, on what is thought to be +the monotony of a cross-country flight. The pilot, raised to a lonely +height above the earth, is pictured sitting more or less inertly in +his seat, with nothing to do but retain his control on the levers, and +look out occasionally so as to keep upon his course. But the beginner, +when he first attempts cross-country flying, will have an impression +not of inactivity, but of the necessity to be constantly on the alert. +He will be engrossed completely by the manipulation of his machine, +with no time to sit in idle speculation, or to analyse his feelings as +the country passes away below.</p> + +<p>When preliminaries on the ground have been gone through, and the pilot +is in the air, there will first be a need to gain a height of several +thousand feet. Altitude is essential in cross-country flying. The +higher a pilot flies, within reason and having regard to the state of +the atmosphere, the better chance will he have<span class="pagenum"><a name="Page_93" id="Page_93">93</a></span> of making a safe +landing, should his motor fail suddenly and force him to descend. So +the first concern is climbing—and in doing so the pilot must remember +the teachings of his instructor, and not force his craft on too steep +or rapid an ascent. He may prefer, in his early flights, to remain +above the aerodrome while he is gaining altitude, watching his height +recorder from moment to moment so as to note his progress upward. He +will be occupied also with his engine, listening to its rhythm of +sound, and keeping an eye on the indicator that tells him how many +revolutions per minute the motor is actually making, and which will +warn him at once should it begin to fail.</p> + +<p>Granted his motor is running well, a pilot should soon gain altitude. +Then, assuming the air is clear—as it should be on his early +flights—he will note some landmark, away on the line of his flight, +and set off across country towards it. Fixed conveniently in front of +him will be a map, of a kind devised specially for the use of +aviators. A pilot's view, as he flies high above the ground, is +bird-like. Landmarks fail to attract his attention, at this altitude, +which would be clearly seen if he were on the ground. Hills, for +example, unless they are high, are so dwarfed as he looks down on them +that they scarcely catch his eye. What is done, by the designer of air +maps, is to accentuate such details of a landscape as will prove +conspicuous when seen from above. A river, or an expanse of water, is +clearly seen; so also are railways and main roads; while factory +chimneys, and large buildings which stand alone, may be identified +from a distance when a pilot is in flight. So on an airman's map, made +to stand out by various colourings in a way that catches the eye, are +railways, roads, rivers, lakes and woods, with here and there a +factory chimney or a church, should these be in a position rendering +them visible easily from the air. That such maps should be bold<span class="pagenum"><a name="Page_94" id="Page_94">94</a></span> in +their design, and free from a mass of small details, is very necessary +when it is remembered that the aviator, passing through the air at +high speeds, has no time for a leisurely inspection of his map.</p> + +<p>With a good map, and aided when necessary by the compass that is +placed in a position so that he can see it readily, a pilot has no +difficulty as a rule, once he has acquired the facility that comes +with practice, in steering accurately from point to point, even when +on a long flight. On a favourable day, when the land below is clearly +visible, he will glance ahead, or to one side, and after observing +some landmark, look on his map to identify the position he has just +seen. Under such conditions steering is easy, and the compass plays a +subsidiary part. But it may happen that, while he is on a long flight +and at a considerable altitude, the earth below may be obscured by +clouds, or a low-lying mist, and all landmarks vanish from his view. +Sometimes too, he may find himself flying through mist and cloud, with +all signs of the earth gone from below. Whereupon, robbed for awhile +of any direct guidance, he must fly by aid of his map and compass, +holding his machine on its compass course, and noting carefully the +needle of his height-recorder, so that he is sure of maintaining +altitude. A risk exists under such conditions, when there is no +visible object by which to judge a course, that an airman may make +leeway, unconsciously, under the pressure of a side-wind; and so he +must be ready to note carefully, immediately that a view of the earth +is vouchsafed him, whether he has actually been making leeway, either +to one hand or the other, even while the bow of his machine has been +held on its compass course. There is a risk also, when a pilot is +flying in fog or at night, that, having no visible horizon from which +to gauge the inclination of his craft, it may assume gradually some +abnormal angle, without his own sensations telling him what is<span class="pagenum"><a name="Page_95" id="Page_95">95</a></span> taking +place. The craft may, for the sake of illustration, incline sideways, +imperceptibly to the pilot, till it begins to side-slip. But science +can meet this danger by providing inclinometers, fitted within the +hull so that the aviator can see them easily; and by means of these +instruments, which are illuminated at night, it is possible for a +pilot to tell, merely by a glance, at what angle his machine is moving +forward through the air—whether it is up or down at the bow, or +whether its position laterally is normal.</p> + +<p>The beginner, on his first cross-country flight, need not be troubled +by such intricacies. He is flying, one assumes, on a fine day, with +the land spread clearly below him. So as he moves through the air, +listening always to the hum of his motor, he need have no fear, +granted that his observation is ordinarily keen, of losing his way.</p> + +<p>Naturally, being a novice, he will feel the responsibility of his +position. His eyes will rove constantly from one instrument to another; +as indeed, from habit, do those of a practised flyer. He will glance +at the height recorder; then at the engine revolution indicator; then +at the dial which tells him what his speed is relative to the air. +There is a dial, also, showing the pressure in his petrol-tank; while +there will be a clock on his dashboard at which he will glance +occasionally, after he has marked some position away on the land below, +so as to determine what progress he is making from the point of view +of time.</p> + +<p>Besides these preoccupations, and the ceaseless even if almost +unconscious attention that he must pay to his engine, there is the +need to bear constantly in his mind's eye the lie of the land. Should +his motor fail suddenly, or something happen which necessitates an +immediate descent, it is imperative that he should be able, without +delay, to choose from the ground that is visible below him some field +or open space that will<span class="pagenum"><a name="Page_96" id="Page_96">96</a></span> provide a safe landing-point. And this is +easier said than done. The earth, when viewed by a airman who looks +down almost directly upon it, is apt to be deceptive as to its +contour. A field that is selected say, from a height of several +thousand feet, may not prove—as the aviator nears it in his glide—to +be at all the haven he imagined it. More than once, seeking to alight +on a field which appeared to him, as he was high above it, to be level +as a billiard table, a pilot has found, when it is too late, that the +ground has sloped so steeply that his machine, after landing, has run +on downhill and ended by crashing into a fence or ditch.</p> + +<p>It is very necessary for an airman to learn to judge, by its +appearance, the difference between an expanse, say, of pasture land, +or a field which is in green corn or standing hay. It has happened +often that a pilot, descending after engine failure towards what he +has reckoned a grass field, has discovered—when too low to change his +landing-point—that his pasture land is actually a field of green corn; +and a landing under such conditions, with the corn binding on the +running-gear of the machine, may end in the aircraft coming to an +abrupt halt, and then pitching forward on its nose; with a broken +propeller and perhaps other damages in consequence.</p> + +<p>In choosing a landing ground, as in other problems that face the +novice in cross-country flying, experience will prove his safeguard. +He will learn for instance that cattle or sheep, if they can be +discerned below in a field, go to show that this field is one of +pasture and not of crops. If no cattle are to be seen in a field, and +the aviator is doubtful about it, and yet if it happens to be the only +suitable one he can locate, then he may look closely at the gateway +which leads into the field. If, in this gateway, he can detect such +scars or markings on the ground as are caused by the feet of cattle as +they walk daily in and out, he may feel<span class="pagenum"><a name="Page_97" id="Page_97">97</a></span> satisfied the field is one of +pasture.</p> + +<p>When cattle or sheep are seen standing in a field so that they face in +the same direction, this may suggest either the existence of a slope, +or the presence of a strong ground wind; while a stream or brook at +the edge of a stretch of open land, or a belt of woods, may suggest a +sloping of the ground.</p> + +<p>It is amusing for a pilot—or it was so, rather, in the days when few +aeroplanes were in existence—to note the astonishment which his +descent, made quite unexpectedly perhaps in some quiet and rural +country, will occasion amongst the inhabitants. Sometimes, under the +stress of such an excitement, people appear to lose for the time being +their power of coherent speech. A pilot in a cross-country contest, +not being sure whether he was on his right course, decided to make a +landing and ask his way. He noticed, after a while, the figure of a +man in a field below. Planing down, and alighting in the field, he +shouted questions to this man, switching his engine off and on, while +he did so, in order that his words, and those of the other, might be +audible. But the man in the field, demoralised by the advent of this +being from the air, and gazing at him and his machine with an +expression of blank amazement, was unequal to the task of giving even +the simplest directions. He waved his arms, it is true, but no words +that could be understood issued from his lips. The pilot repeated his +questions, but it was no good. The man waved and mouthed, and rolled +his eyes, but when he tried to speak intelligibly he could not. So the +aviator, loath to waste further time, accelerated his engine again and +continued his flight.</p> + +<p>As a contrast to this, there was the experience of a pilot who, after +a long flight from England to the Continent, landed at length near a +small village. In the next field to that in which he alighted there +was a labourer, digging patiently. The aviator expected<span class="pagenum"><a name="Page_98" id="Page_98">98</a></span> that this man +would fling down his spade in excitement, and run wildly towards the +aeroplane. But such was not the case. This labourer, a marvel of +placidity and unconcern, merely raised his head slowly and looked +across at the aircraft, and then went on with his digging.</p> + +<p>In his first cross-country flights, being concerned chiefly as to the +manipulation of his machine, and having so many things to think of, +the novice may feel tired after even a short journey by air. His chief +sensation, as he switches off his engine to descend towards the +aerodrome he sees below him, will be one of relief that he has escaped +engine failure, and that he has been able to find his way from point +to point. The joy of flight, of passing swiftly thousands of feet +above the earth, will have made but a small impression upon him—at +any rate consciously. It will not be until the handling of his machine +becomes less laborious, and he has time to accustom himself to his +unique view-point, and the strangeness and beauty of the scene below +him, that the novice will realise some of the fascinations of aerial +travel; fascinations that it is difficult to describe. The sensation +of having thrown off the bonds of earth-bound folk; of soaring above +the noise and dust of highways; of being free from the obstructions of +traffic; of sweeping forward smoothly, swiftly, and serenely—the land +stretching below in an ever-changing panorama, with the drone of the +motor in one's ears, and a wine-like exhilaration in the rush of the +air: these, and others more obscure, are among the sensations of +cross-country flying.</p> + +<h2><a name="ch11" id="ch11"></a>CHAPTER XI</h2><span class="pagenum"><a name="Page_99" id="Page_99">99</a></span> + +<h3>AVIATION AS A PROFESSION</h3> + +<p><span class="smallcaps">Young</span> men, and parents on their behalf, are seeking always some +profession which will yield an adequate return for the enthusiasm +which youth lavishes upon it. Too often, though, at any rate in the +past, this search for a man's work in life has been narrowed into ruts; +conducted on certain set lines which, though they have found +employment for the beginner, have given him no scope for that +enthusiasm with which he will attack the first tasks presented him. +Aviation, till the coming of the war, was looked at askance by parents +who had sons on their hands. Apart from the risks of flying, which +appeared to them ceaseless and terrible, the actual industry of +building aeroplanes, regarded as an industry, seemed so haphazard and +objectless an affair—so much like playing at work—that they +discouraged any wish that a youth might show to enter it. Many people, +these people of intelligence, regarded the building and flying of +aeroplanes as being no more than a passing phase, and a regrettable +one, which it was hoped men would soon abandon, and turn their +attention to tasks more serious and profitable. But that was before +aircraft had proved their value as instruments of war. Now it is known +that aeroplanes have the power, granted they are supplied in +sufficient numbers, of altering the tenor of a great campaign, both by +land and sea; and that in any future war of nations, should one come, +a battle between the hostile flying fleets, fought to determine the +command of the air, will determine also, to a very<span class="pagenum"><a name="Page_100" id="Page_100">100</a></span> large extent, the +fortunes of armies on the land and navies on the sea. It is clear +indeed that, for any great nation that strives to maintain its place, +a powerful air fleet has become a necessity; while for Britain, an +island no longer from the military point of view, seeing that we must +face seriously the question of invasions by air, there is a vital need +to strive for command of the air, as we now hold command of the sea.</p> + +<p>The building up of our air fleet will be an arduous task, needing men, +money, and time; but without it we cannot be secure. Therefore the +work must be faced, the men and the money forthcoming. Aviation, as an +industry, must prepare for years of strenuous work. A great air +service must be created. Machines must be designed and built in +thousands instead of hundreds, and men trained to fly them. Nor is +this all. The aeroplane, though it has such significance as a weapon +of war, is destined primarily and eventually to be an instrument of +peace; a machine for the transport by air of passengers, mails, and +goods, at speeds greater than will be feasible by land or water; and a +craft also for the use of travellers and tourists, enabling them to +make such journeys, with ease and pleasure, as will again prove +impossible by land or sea. So aviation has two immense tasks ahead of +it, instead of one. Not only must it create, by years of patient and +determined effort, a flying service which will command the air, but +craft must be designed and built also for the mail, goods, and +passenger-carrying services, and to meet the needs of the aerial +tourist.</p> + +<p>This new task that has been given to men, that of designing, building, +and piloting aircraft, is still on the eve of its expansion. The +opportunities it offers to young men—to men whose minds are quick to +grasp a new idea and who have the powers of initiative and +decision—are almost boundless. Flying will, as it<span class="pagenum"><a name="Page_101" id="Page_101">101</a></span> develops, +revolutionise the world's system of transport; while the developments +even of the immediate future promise to be so great, and so important, +that it is not easy to visualise them. But this at least is clear: now +is the time for newcomers to enter the world of flight. Aviation needs +men, is calling aloud for men; and they are needed for many kinds of +work. First, of course, should be placed the flying services, naval +and military, to join which during the war men have come forward so +admirably. But it will need, in the expansion that must follow this +campaign, a steady and a ceaseless growth in numbers, not only of the +men who handle machines in flight, but of those who serve the +squadrons by their work on land, and who build up the organisation +which is vital to success.</p> + +<p>For skilled aviators, other than those who join the services, there is +scope for remunerative work. A constant demand exists for men who will +test and fly in their trials the new machines that are built by +manufacturers; for men who will fly, in public exhibitions, the craft +that are used at the various aerodromes; and for men who will qualify +as instructors, and join the flying schools which are already in +existence, or in process of formation. In countries oversea, too, +there is the definite promise that aircraft will be needed, not only +for survey work over wide tracts of land, and for maintaining +communication and bearing mails over districts where land travel is +difficult, but also for exploration; and this again means that pilots +will be required. New aerodromes must come into existence also; not +only to act as alighting points for touring craft, but to provide +grounds for the training of pupils; and at these aerodromes pilots +will be needed.</p> + +<p>Of other opportunities, apart from the piloting of aircraft, there are +many—though it is desirable for a man to learn to fly, and obtain his +certificate of proficiency,<span class="pagenum"><a name="Page_102" id="Page_102">102</a></span> even if afterwards he does not intend +continuing as a pilot. The practical experience he gains, while +learning actually to handle an aircraft in flight, will prove +extremely useful to him subsequently, even though the task he +undertakes is one that keeps him on the ground. He may qualify, for +instance, for a post in a aeroplane factory as a designer or +draughtsman; or he may specialise in aero-motors, and seek a post in +the engine-shops. At the aerodromes, too, there are openings which +present themselves; as, for example, in the management of a flying +school.</p> + +<p>It has been shown that the public will go in thousands to see sporting +contests with aeroplanes, and here is another field for organisation +and effort; while there is a constant demand for men of ability in the +executive departments of firms which are established already in the +industry, and are expanding steadily, or in those which are now being +formed, or are joining aviation from day to day.</p> + +<p>The industry is at last on a footing that is practical and sound. It +presents a new field for effort, and one that is unexploited; while +for the man who enters it—and this should be the attraction for +youth—there are occupations as fascinating as one's imagination could +depict. But one thing must be understood clearly. Flying is, of exact +sciences, surely the most exact. The man who is only half-trained, who +is more or less slovenly in his work, who will not bend his whole +energies to his task, will find no place in this new industry. A young +man is wasting his time, if, after deciding to enter aviation, he +acquires knowledge that is no more than haphazard. He who contemplates +aviation as a profession must set himself the task of learning all +there is to be learned, and in the right way.</p> + +<p>Individual opportunities and circumstances will, necessarily, play so +large a part in the steps taken by a young man—or by his parents on +his behalf—to<span class="pagenum"><a name="Page_103" id="Page_103">103</a></span> launch him on a career in aviation that it is +impossible, here, to do more than generalise. Certainly, as we have +said, it is an excellent preliminary to learn to fly; and it may be +stated also that it is now possible to place, with aviation companies +of repute, premium pupils who will undergo instruction extending over +a period of three years. A youth may, also, gain his knowledge of the +industry by becoming an indentured apprentice.</p> + +<p>One may say, as a conclusion to this chapter, that a great, new, and +potential industry is springing up in our midst, one which will prove +to be equally if not more important and far-reaching than the British +shipbuilding industry, and one which will employ thousands of skilled +engineers and artisans. Ships are limited to one element, the water, +which has very definite boundaries. Aircraft, too, are limited to one +element, the air; but this element has no boundaries so far as the +earth is concerned, and aircraft will be navigable to any and every +part of the globe.</p> + +<h2><a name="ch12" id="ch12"></a>CHAPTER XII</h2><span class="pagenum"><a name="Page_104" id="Page_104">104</a></span> + +<h3>THE FUTURE OF FLIGHT</h3> + +<p><span class="smallcaps">It</span> is a hopeful augury, to those concerned with aviation, that public +interest in flying should not only be keen, but should be growing. In +the early days, even when aeroplanes were so great a novelty, it was +difficult to induce people in any numbers to witness a flying display. +The first meetings, though they were organised with enthusiasm, ended +as a rule with a heavy financial loss; and this fact of course, when +it became known, had a discouraging influence on those who might, had +these early meetings proved a success, have been willing to finance +aerodromes and the building of machines. But as it was, business men, +who are quick to form conclusions, said that people would never be +induced to pay to see aeroplanes fly. But here they failed to reckon +with the fact that, though public interest in flying has been of very +slow growth, yet at the same time it has been a steady and continuous +growth. From month to month, and from year to year, as aeroplane +constructors and pilots have continued at their tasks, overcoming +technical difficulties and personal risks, the interest of ordinary +people has grown perceptibly. Even before the war—which has done so +much to focus attention on flying—the attitude of scepticism and +apathy had been greatly changed. When the London Aerodrome at Hendon +was established, there were shrewd men in the city, men who are +ordinarily very sound in their conclusions, who declared the public +would never go there in appreciable numbers. How wrong they<span class="pagenum"><a name="Page_105" id="Page_105">105</a></span> were, how +little they gauged the change that was taking place in the public mind, +is shown by the fact that, on a popular day at this aerodrome, as +many as 60,000 people have paid for admission.</p> + +<p>In the immediate future, as in the immediate past, aviation will be +concerned largely with the building of naval and military craft. This +will, so to say, be the foundation of its development in other +directions. War for instance, notably in the fitting of craft with +duplicate power-plants, will provide data that is invaluable in the +building of commercial craft, and in machines also for the use of the +tourist. In aerial touring there lies an important field for the +development of aircraft—one which may serve to bridge the gap between +a relatively small, purely pleasure-type machine, and a craft which +has utility in the fields of commerce. The motor-car provides an +enjoyable means of travelling from place to place; but in the +aeroplane, once it is airworthy, reliable, and comfortable, the +tourist has a vehicle which is distinctly more pleasurable and +exhilarating. The day was dawning before the war, and will now be +hastened, when, garaging his aircraft at the London Aerodrome as a +convenient starting-point, an aerial traveller will tour regularly by +air, using his flying machine as he would a motor. Already, dotted +about England, are aerodromes he may use as halting-points on his +flight, and at which he can house his machine and secure the attention +of mechanics; and the number of these grounds should grow rapidly in +the future.</p> + +<p>In the aeroplane for the tourist, for the man who buys a machine and +flies for his own pleasure, it is necessary to combine comfort and +safety. As regards comfort, though much remains to be done in the +perfection of detail, the occupants of a machine are now more studied +than they were in the pioneer days. Then a pilot sat out on a crude +seat, exposed fully to the rush<span class="pagenum"><a name="Page_106" id="Page_106">106</a></span> of wind as a machine moved through the +air. Now he is placed within a covered-in hull, a screen to protect +him from the wind. From this stage, as was the case with the motor-car, +rapid progress should be made in a provision of comfort.</p> + +<p>When touring by air under favourable conditions, there should be no +more risk with an aircraft than with a motor-car. One of the most +frequent causes of accident, as we have shown, has been the structural +weakness of a machine. Now, with the experience of the war on which to +draw, and with many clever brains focussed on the development of the +industry, this risk may be regarded as almost non-existent; as +negligible a factor as it is possible to make it, remembering that +aircraft, like other mechanism, have to be built by human hands.</p> + +<p>Another risk, that of engine failure, may, as we have explained, be +eliminated by the use of more than one motor. In the application of +such systems there is still much to be learned; but the obstacles are +not insuperable. One advantage that can be offered the aerial tourist, +reckoning him as a pilot of no more than average skill, who needs all +the aid that science can give him, is that he can obtain a machine +which, owing to its automatic stability, requires merely to be taken +into the air and brought to earth again, and which will practically +fly itself, once it is aloft.</p> + +<p>One of the needs with a touring machine, to which makers must devote +their attention, is that it should be able to leave the ground quickly +in its ascent, and so permit its pilot to rise even from a small +starting ground. And it is equally necessary that, on occasion, a +machine should be able to alight safely, and at a slow speed, in quite +a small field. An aviator who had given up aviation temporarily, after +a long spell of cross-country flying, was asked one day when he was +going to fly again. "I shan't do so," he said, "till I<span class="pagenum"><a name="Page_107" id="Page_107">107</a></span> can buy a +machine with which I can alight in my own garden."</p> + +<p>Already there are craft which, provided high speeds are not expected +of them, and they are given ample plane-surface, will alight at quite +a moderate pace; but in the future, by the use of machines which have +the power of increasing or reducing their wing-surfaces while in +flight, it should be possible to descend in a space no larger, say, +than a garden. In the construction of variable-surface machines, +technical problems need to be faced which are unusually difficult. The +theory with such craft is that their sustaining planes, either by a +telescopic system, or by some process of reefing, are built so that +they can be expanded or contracted at the will of the pilot. Thus in +rising, when a machine is required to ascend with a minimum run +forward across the ground, a large area of lifting surface would be +exposed; and at the moment of alighting, also, when it was desired +that a machine should make its contact with the ground at the slowest +possible speed, a maximum of plane surface would be employed. But when +aloft, and in full flight, the pilot would be able if he so desired to +reduce the area of his lifting surface, and so increase materially his +speed. With a machine of this type, when perfected, it should be +possible to rise quickly, and descend slowly, and yet at the same time, +when well aloft, attain a high speed with moderate engine-power.</p> + +<p>The commercial possibilities of aviation are vast and far-reaching: +not for nothing, after centuries of striving, have men conquered the +air. The aeroplane is destined, by the facilities it offers for +communication between nations, to play a vital part in the growth of +civilisation. The construction and perfection of a commercial +aeroplane, a machine which can be used for the transport of passengers, +mails, and goods, represents largely a question of time and of money.<span class="pagenum"><a name="Page_108" id="Page_108">108</a></span> +Technical problems still need to be solved. But none of them are +insurmountable. All should be overcome by an expenditure of money and +in the process of time—granted of course that research is directed +upon the right lines. A sufficient amount of money for experimental +work, which in aviation is very costly, was one of the prime +difficulties before the war. Capitalists were chary of aviation; they +had no faith in it. Now, after the work aircraft have done in war, and +with the need to provide the world with air fleets, the industry need +live no longer from hand to mouth. There should be funds available for +experiments with commercial-type aeroplanes.</p> + +<p>As to the factor of time, this depends largely on the facilities that +are obtained by the industry—apart from its work on naval and +military craft—for test work with other machines. But in five years' +time, granted progress continues on the lines now promised, we should +have a service of passenger aeroplanes, each carrying fifty or more +people, flying daily between London, the Midlands, and the North; +while in ten years' time it should be possible to cross the Atlantic, +from London to New York, by means of a regular service of aerial craft.</p> + +<p>The commercial aeroplane, even when perfected, would not be likely to +compete successfully with other means of transit unless it could offer +the advantages of a greater speed. Here, indeed, in the speeds they +will attain, lies the future of aircraft. The air will be our highway +because, in the air, speeds will be reached that are impossible on +land or sea. As civilisation extends—this is of course a +truism—there grows with it a need for speedier travel; and we have +seen land and sea transit striving to meet this demand. But both have +reached, or are rapidly reaching, a limit of speed—a limit imposed by +the need to carry their passengers and goods on a remunerative basis. +On the sea, by<span class="pagenum"><a name="Page_109" id="Page_109">109</a></span> burning excessive quantities of coal, it is possible to +add a few knots to the speed of a great liner. But then the problem +becomes one of profit and loss; while with trains—so nearly under +existing conditions have they reached a limit of speed—that a +difficulty is experienced, even on long runs, and under favourable +circumstances, in saving a minute here and there. It is not of course +to be assumed, when the spur of a greater necessity comes, that land +and sea transit will fail altogether to increase their existing +speeds. There is the mono-rail system of land traction, electrically +propelled, which has yet to be tested in a practical way; while on the +sea, perhaps, under pressure of competition, and with an increasing +demand for greater speeds, it may be possible to adapt with advantage, +even on large craft, some principle of the hydroplane.</p> + +<p>But by way of the air, granted even a speeding-up on land and sea, +should go the high-speed traffic of the future. By a greater +efficiency in lifting surfaces and by reductions in the resistance a +craft offers to its own passage through the air; by the provision of +systems which will permit a pilot to reduce plane-area when his +machine has gained altitude and he desires a maximum speed; by the +equipping of craft with motors developing thousands of horse-power for +a very low weight—by such means, and by a general improvement in +design, it should be possible, eventually, to attain flying speeds of +150, 200, and even 250 miles an hour. From London to New York by air +liner, in less than twenty hours; such, for instance, should be an +attainment of the future.</p> + +<p>It seems probable, in the development of the commercial aeroplane, we +shall have machines for touring and for pleasure flights—craft not of +large size but in which efforts are made to obtain a greater +reliability and comfort. Then it appears likely that aircraft<span class="pagenum"><a name="Page_110" id="Page_110">110</a></span> may +reach a practical use as carriers of mails and of light express goods; +first of all in localities, and under conditions, which favour +specially an aerial transit. And from this phase we should move to the +passenger-carrying craft; to the days when we shall be able to spend a +week-end in New York, as readily as it has been the habit to do in +Paris; when we shall be able to reach any part of the world in a +journey by air lasting, say, a week or ten days. Then, as a recompense +for the lives that have been lost, and for a conquest that has been so +dearly won, the world will enter upon an age of aerial transit—the +age when frontiers and seas will act as barriers no longer, when +journeys that now last weeks will be reduced to days, and those of +days to hours; when first of all Europe, and then the world, will be +linked by airway.</p> + +<h4>THE END</h4> +<br> +<hr class="tiny"> + +<h2><a name="index" id="index"></a>INDEX</h2><span class="pagenum"><a name="Page_111" id="Page_111">111</a></span> + +<ul><li><span class="smallcaps">Aerodromes</span>, their evolution, <a href="#Page_14">14</a></li> + +<li>Age, its relation to flying, <a href="#Page_11">11</a></li> + +<li>Alighting, operation of, <a href="#Page_51"> 51</a><br><br></li> + + +<li><span class="smallcaps">Biplanes</span> and tuition, the "pusher" type, <a href="#Page_16"> 16</a></li> + +<li>Bleriot, Louis, study of his methods as a pilot, <a href="#Page_84"> 84</a><br><br></li> + + +<li><span class="smallcaps">Certificate</span> of proficiency, tests for, <a href="#Page_54"> 54</a></li> + +<li>Cody, S. F., <a href="#Page_90"> 90</a></li> + +<li>Commercial possibilities of aviation, <a href="#Page_107"> 107</a></li> + +<li>Conneau, Lieut. J. ("Beaumont"), <a href="#Page_87"> 87</a></li> + +<li>Constructional weakness in aeroplanes, risks of, <a href="#Page_60"> 60</a></li> + +<li>Controllability of aeroplanes, problems of, <a href="#Page_33"> 33</a></li> + +<li>Cross-country flying, pupils' first experiences, <a href="#Page_92"> 92</a><br><br></li> + + +<li><span class="smallcaps">Dual-Engine</span> machines, <a href="#Page_79"> 79</a><br><br></li> + + +<li><span class="smallcaps">Engine</span> failure, risks of, <a href="#Page_65"> 65</a></li> + +<li>Enjoyment of learning to fly, <a href="#Page_12"> 12</a><br><br></li> + + +<li><span class="smallcaps">Farman, Henri</span>, pioneer work as an aviator, <a href="#Page_86"> 86</a></li> + +<li>Fees for tuition, <a href="#Page_13"> 13</a></li> + +<li>First flights, pupil as passenger, <a href="#Page_39"> 39</a><br><br></li> + + +<li><span class="smallcaps">Health</span> and flying, <a href="#Page_10"> 10</a></li> + +<li>Human factor in relation to accidents, <a href="#Page_71"> 71</a><br><br></li> + + +<li><span class="smallcaps">Improvements</span> in aircraft which spell safety, <a href="#Page_76"> 76</a></li> + +<li>Industry of aviation, its expansion, <a href="#Page_100"> 100</a></li> + +<li>Instructors, qualifications necessary, <a href="#Page_15"> 15</a><br><br></li> + + +<li><span class="smallcaps">Latham, Hubert</span>, temperamental study, <a href="#Page_86"> 86</a></li> + +<li>Learning to fly not dangerous, <a href="#Page_11"> 11</a><br><br></li> + + +<li><span class="smallcaps">Manual</span> dexterity, need of, <a href="#Page_12"> 12</a><br><br></li> + + +<li><span class="smallcaps">Opportunities</span> for the newcomer in aviation, <a href="#Page_101"> 101</a><br><br></li> + + +<li>"<span class="smallcaps">Rolling</span>" (handling a machine on the ground), <a href="#Page_43"> 43</a><br><br></li> + + +<li><span class="smallcaps">School</span> aeroplanes, types of, <a href="#Page_16"> 16</a></li> +<li>—— aeroplanes, need for ample supply, <a href="#Page_15"> 15</a></li> +<li>—— biplane, its controls, <a href="#Page_34"> 34</a></li> + +<li>Schools, modern, their conveniences, <a href="#Page_18"> 18</a></li> + +<li>Sensations of flight, <a href="#Page_41"> 41</a></li> + +<li>Speed in its relation to flying, <a href="#Page_31"> 31</a></li> + +<li>Speed, promise of the future, <a href="#Page_109"> 109</a></li> + +<li>Straight flights, <a href="#Page_44"> 44</a></li> + +<li>Sustaining planes, their operation, <a href="#Page_32"> 32</a><br><br></li> + + +<li><span class="smallcaps">Temperament</span>, the ideal for flying, <a href="#Page_22"> 22</a></li> + +<li>Time required in learning to fly, <a href="#Page_19"> 19</a></li> + +<li>Touring by air, <a href="#Page_105"> 105</a></li> + +<li>Turning in the air, <a href="#Page_46"> 46</a><br><br></li> + + +<li><span class="smallcaps">Vedrines, Jules</span>, his piloting, <a href="#Page_90"> 90</a></li> + +<li>Vol-plané, the, <a href="#Page_48"> 48</a><br><br></li> + + +<li><span class="smallcaps">Weather</span>, its effect on tuition, <a href="#Page_38"> 38</a></li> + +<li>Wind fluctuation, dangers of, <a href="#Page_62"> 62</a></li> +<li>—— flying, <a href="#Page_80"> 80</a></li> + +<li>Wrights, Wilbur and Orville, <a href="#Page_82"> 82</a><br><br></li> +</ul> + +<hr class="tiny"> + +<span class="pagenum"><a name="Page_112" id="Page_112">112</a></span> + +<h2><a name="biblio" id="biblio"></a>BIBLIOGRAPHY</h2> + +<p><i>Some books selected as being likely to appeal to a man, without +technical knowledge, who contemplates learning to fly.</i></p> + +<p>"THE AIRMAN," by <span class="smallcaps">Captain C. Mellor, R.E.</span> Published by Mr. John Lane, +the Bodley Head, London. (3s. 6d.)</p> + +<p>Describes the author's experiences, in France, while obtaining a +brevet on a Maurice Farman biplane.</p> + +<p>"THE ESSAYS OF AN AVIATOR." Obtainable from "Aeronautics," 170, Fleet +Street, London, E.C. (2s. 6d.)</p> + +<p>A series of admirable papers, written by a pilot and from a pilot's +point of view.</p> + +<p>"THE AERONAUTICAL CLASSICS." A series of booklets issued at 1s. each +by the Aeronautical Society, 11, Adam Street, Adelphi, London, W.C.</p> + +<p>Describe authoritatively, and very interestingly, the work of great +pioneers.</p> + +<p>"FLIGHT WITHOUT FORMULÆ," by <span class="smallcaps">Commandant Duchene</span>, of the French Génie +(translated from the French by John H. Ledeboer). Published by +Longmans, Green & Co., 39, Paternoster Row, E.C. (7s. 6d.)</p> + +<p>Instructive discussions, clearly expressed, on the mechanics of the +aeroplane.</p> + +<p>"PRINCIPLES OF FLIGHT," by <span class="smallcaps">A. E. Berriman</span>. Obtainable from "Flight" +Offices, St. Martin's Lane, London, W.C. (2s.)</p> + +<p>"AERO ENGINES," by <span class="smallcaps">G. A. Burls</span>. Published by Charles Griffen & Co., 12, +Exeter Street, Strand, London, W.C. (8s. 6d.).</p> + +<hr class="tiny"> +<br> +<div class="note">AUTHORS' NOTE.—The above list does not, of course, pretend to +be in any way complete. It is designed merely to act as a +suggestion for the novice.—C. G.-W., H. H.</div> +<br> +<hr class="tiny"> + +<h5>THE LONDON AND NORWICH PRESS LIMITED, LONDON AND NORWICH, ENGLAND</h5> + + + + + + + +<pre> + + + + + +End of the Project Gutenberg EBook of Learning to Fly, by +Claude Grahame-White and Harry Harper + +*** END OF THIS PROJECT GUTENBERG EBOOK LEARNING TO FLY *** + +***** This file should be named 27557-h.htm or 27557-h.zip ***** +This and all associated files of various formats will be found in: + https://www.gutenberg.org/2/7/5/5/27557/ + +Produced by the Online Distributed Proofreading Team +at https://www.pgdp.net (This file was produced from +images generously made available by The Internet +Archive/American Libraries.) + + +Updated editions will replace the previous one--the old editions +will be renamed. + +Creating the works from public domain print editions means that no +one owns a United States copyright in these works, so the Foundation +(and you!) can copy and distribute it in the United States without +permission and without paying copyright royalties. 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You may copy it, give it away or +re-use it under the terms of the Project Gutenberg License included +with this eBook or online at www.gutenberg.org + + +Title: Learning to Fly + A Practical Manual for Beginners + +Author: Claude Grahame-White + Harry Harper + +Release Date: December 18, 2008 [EBook #27557] + +Language: English + +Character set encoding: ASCII + +*** START OF THIS PROJECT GUTENBERG EBOOK LEARNING TO FLY *** + + + + +Produced by the Online Distributed Proofreading Team +at https://www.pgdp.net (This file was produced from +images generously made available by The Internet +Archive/American Libraries.) + + + + + + + + + +LEARNING TO FLY + + + [Illustration: _Photo by Topical Press Agency._ + A SCHOOL MACHINE WELL ALOFT.] + + + LEARNING TO FLY + + A PRACTICAL MANUAL FOR + BEGINNERS + + BY + + CLAUDE GRAHAME-WHITE + AND + HARRY HARPER + + _FULLY ILLUSTRATED_ + + NEW YORK + THE MACMILLAN COMPANY + + + PRINTED IN ENGLAND. + + + + +CONTENTS + + + I. THEORIES OF TUITION 9 + + II. TEMPERAMENT AND THE AIRMAN 20 + + III. FIRST EXPERIENCES WITH AN AEROPLANE 24 + (AS DESCRIBED BY MR. GRAHAME-WHITE) + + IV. THE CONTROLLING OF LATEST-TYPE CRAFT 31 + + V. THE STAGES OF TUITION 38 + + VI. THE TEST FLIGHTS 53 + + VII. PERILS OF THE AIR 56 + + VIII. FACTORS THAT MAKE FOR SAFETY 76 + + IX. A STUDY OF THE METHODS OF GREAT PILOTS 82 + + X. CROSS-COUNTRY FLYING 92 + + XI. AVIATION AS A PROFESSION 99 + + XII. THE FUTURE OF FLIGHT 104 + + + + +ILLUSTRATIONS + + + A SCHOOL MACHINE WELL ALOFT _Frontispiece_ + + FACE PAGE + + GRAHAME-WHITE SCHOOL BIPLANE 34 + + THE CONTROLS OF A SCHOOL BIPLANE 36 + + REAR VIEW OF A SCHOOL BIPLANE 38 + + POWER-PLANT OF A SCHOOL BIPLANE 40 + + MOTOR AND OTHER GEAR--ANOTHER VIEW 42 + + PUPIL AND INSTRUCTOR READY FOR A FLIGHT 44 + + PUPIL AND INSTRUCTOR IN FLIGHT (1) 46 + + PUPIL AND INSTRUCTOR IN FLIGHT (2) 48 + + PUPIL AND INSTRUCTOR IN FLIGHT (3) 50 + + + + +Authors' Note.--The photographs to illustrate this book, as set forth +above, were taken at the Grahame-White Flying School, the London +Aerodrome, Hendon, by operators of the Topical Press Agency, 10 and 11, +Red Lion Court, Fleet Street, London, E.C. + + + + +AUTHORS' NOTE + + +This book is written for the novice--and for the novice who is +completely a novice. We have assumed, in writing it, that it will come +into the hands of men who, having determined to enter this great and +growing industry of aviation, and having decided wisely to learn to +fly as their preliminary step, feel they would like to gain +beforehand--before, that is to say, they take the plunge of selecting +and joining a flying school--all that can be imparted non-technically, +and in such a brief manual as this, not only as to the stages of +tuition and the tests to be undergone, but also in regard to such +general questions as, having once turned their thoughts towards flying, +they take a sudden and a very active interest. + +It has been our aim, bearing in mind this first and somewhat restless +interest, to cover a wide rather than a restricted field; and this +being so, and remembering also the limitations of space, we cannot +pretend--and do not for a moment wish it to be assumed that we +pretend--to cover exhaustively the various topics we discuss. Our +endeavour, in the pages at our disposal, has not been to satisfy +completely this first curiosity of the novice, but rather to stimulate +and strengthen it, and guide it, so to say, on lines which will lead +to a fuller and more detailed research. + +It is from this point of view, as a short yet comprehensive +introduction, and particularly as an aid to the beginner in his choice +of a school, and in what may be called his mental preparation for the +stages of his tuition, that we desire our book to be regarded. + + C. G.-W. + H. H. + + _April_, 1916. + + + + +CHAPTER I + +THEORIES OF TUITION + + +Only eight years ago, in 1908, it was declared impossible for one man +to teach another to fly. Those few men who had risen from the ground +in aeroplanes, notably the Wright brothers, were held to be endowed by +nature in some very peculiar way; to be men who possessed some +remarkable and hitherto unexplained sense of equilibrium. That these +men would be able to take other men--ordinary members of the human +race--and teach them in their turn to navigate the air, was a +suggestion that was ridiculed. But Wilbur Wright, after a series of +brilliant flights, began actually to instruct his first pupils; doing +so with the same care and precision, and the same success, that had +characterised all his pioneer work. And these first men who were +taught to fly on strange machines--as apart from the pioneers who had +taught themselves to fly with craft of their own construction--made +progress which confounded the sceptics. They went in easy and +leisurely fashion from stage to stage, and learned to become aviators +without difficulty, and mainly without accident. + +After this, increasing in numbers from two or three to a dozen, and +from a dozen to fifty and then a hundred, the army of airmen grew +until it could be totalled in thousands. Instead of being haphazard, +the teaching of men to fly became a business. Flying schools were +established; courses of tuition were arranged; certain pilots +specialised in the work of instruction. It was shown beyond doubt that, +instead of its being necessary for an aviator to be a species of +acrobat, any average man could learn to fly. + +Certainly a man who intends to fly should be constitutionally sound; +this point is important. When in an aeroplane, one passes very quickly +through the air, and such rapid movement--and also the effect of +varying altitudes--entail a certain physical strain. A man with a weak +heart might find himself affected adversely by flying; while one whose +lungs were not sound might find that his breathing was impeded +seriously by a swift passage through the air. More than one fatality, +doubtful as to its exact cause, has been attributed to the collapse of +a pilot who was not organically sound, or who ascended when in poor +health. And here again is an important point. No man, even a normally +healthy man, should attempt to pilot a machine in flight when he is +feeling unwell. In such cases the strain of flying, and the effect of +the swift motion through the air, may cause a temporary collapse; and +in the air, when a man is alone in a machine, any slight attack of +faintness may be sufficient to bring about a fatality. + +A fair judgment of speed, and an eye for distance, are very helpful to +the man who would learn to fly, and it is here that a man who has +motored a good deal, driving his own car, is at advantage at first +over one who has not. But otherwise, and writing generally, any man of +average quickness of movement, of average agility, can learn without +difficulty to control an aeroplane in flight. It is wrong to imagine +that exceptional men are required. An unusual facility, of course, +marks the expert pilot; but we are writing of men who would attain an +average skill. + +There has been discussion as to the age at which a man should learn to +fly, or as to the introduction of age limits generally in the piloting +of aircraft. But this introduces a difficult question; one which +depends so entirely on the individual, and regarding which we need the +data that will be provided by further experience. Some men retain from +year to year, and to a remarkable extent, the faculties that are +necessary; others lose them rapidly. The late Mr. S. F. Cody was +flying constantly, and with a very conspicuous skill, at an age when +he might have been thought unfit. But then he was a man of a rare +vitality and a great enthusiasm--a man who, though he flew so often, +declared that each of his flights was an "adventure." Taking men in +the average one may say this: the younger a man is, when he learns to +fly, the better for him. Much depends, naturally, on the sort of +flying he intends to do after he has attained proficiency. If he is +going to fly in war, or under conditions that impose a heavy strain, +then he must be a young man. But if he intends to fly for his own +pleasure, and under favourable conditions, then this factor of age +loses much of its importance, and it is only necessary that a man +should retain say, an ordinary activity, and a normal quickness of +vision and of judgment. + +Flying is not difficult. It is in a sense too easy, and this is just +where its hidden danger lies. If a pupil is carefully taught, and +flies at first only when the weather conditions are suitable, he will +find it surprisingly easy to pilot an aeroplane. That it is not +dangerous to learn to fly is proved daily. Though hundreds and +thousands of pupils have now passed through the schools, anything in +the nature of a serious accident is very rarely chronicled. This +immunity from accident is due largely to the care and experience of +instructors, and also to the fact that all pupils pass through a very +carefully graduated tuition, and that no hazardous flights are allowed; +while another and an important element of safety lies in the fact +that no flying is permitted at the schools unless weather conditions +are favourable. It is now a fair contention that, provided a man +exercises judgment, and ascends only in weather that is reasonably +suitable, there is no more danger in flying an aeroplane than in +driving a motor-car. + +Much depends of course on the dexterity of the pupil, and particularly +on his manual dexterity--on what is known, colloquially, as "hands." +Some men, even after they have been carefully taught, are apt to +remain heavy and clumsy in their control. Others, though, seem to +acquire the right touch almost by instinct; and these are the men who +have in them the making of good pilots. Horsemen refer to "hands" when +they speak of a man who rides well; and in flying, if a man is to +handle a machine skilfully, there is need for that same instinctive +delicacy of touch. + +Nowadays, when a pupil joins a well-established flying school, he +finds that everything is made easy and pleasant for him. Most men +enjoy very thoroughly the period of their tuition. A friendly regard +springs up between the pupils and their instructors, and men who have +learned to fly, and are now expert pilots, bear with them very +pleasant reminiscences of their "school" days. But there were times, +and it seems already in the dim and distant past, when learning to fly +was a strange, haphazard, and hardly pleasant experience; though it +had a sporting interest certainly, and offered such prospects of +adventure as commended it to bold spirits who were prepared for +hardship, and had a well-filled purse. The last requirement was very +necessary. In the bad old days, amusing days though they were without +doubt, no fixed charge was made to cover such breakages, or damage to +an aeroplane, as a pupil might be guilty of during his period of +instruction. These items of damage--broken propellers, planes, or +landing gear--were all entered up very carefully on special bills, and +presented from time to time to the dismayed novice; and a man who was +clumsy or impetuous found learning to fly an expensive affair. There +was a pupil who joined a school soon after Bleriot's crossing of the +Channel by air. It was a monoplane school; and the monoplane, unless a +man is careful and very patient, is not an easy machine to learn to +fly. This beginner was not patient; he was indeed more than usually +impetuous. His landings, in particular, were often abrupt. He broke +propellers, frequently, to say nothing of wings and of alighting gear. +And of all these breakages a note was made. Bills were handed to +him--long and intricate bills, with each item amounting to so many +hundreds of francs. Having a sense of humour, the pupil began to paper +his shed with these formidable bills, allowing them to hang in +festoons around the walls. What it cost him to learn to fly nobody +except himself knew. He paid away certainly, in his bills for +breakages, enough money to buy several aeroplanes. + +This was in the early days, when aviators were few and all flying +schools experimental. To-day a pupil need not concern himself, even if +he does damage a machine. Before beginning his tuition he pays his fee, +one definite sum which covers all contingencies that may arise. It +includes any and all damage that he may do to the aircraft of his +instructors; it covers also any third-party claims that may be made +against him--claims that is to say from any third person who might be +injured in an accident for which he was responsible. This inclusive +fee varies, in schools of repute, from L75 to L100. + +The modern aerodromes, or schools of flight, at which a pupil receives +his tuition, have been evolved rapidly from the humblest of +beginnings. The first flying grounds were, as a rule, nothing more +than open tracts of land, such as offered a fairly smooth +landing-place and an absence of dangerous wind-gusts. Then, as +aviation developed, pilots came together at these grounds, and sheds +were built to house their craft. And after this, quickly as a rule, an +organisation was built up. Beginning from rough shelters, erected +hastily on the brink of a stretch of open land, there grew row upon +row of neatly-built sheds, with workshops near them in which aircraft +could be constructed or repaired. And from this stage, not content +with the provision made for them by nature, those in control of the +aerodromes began to dig up trees, fill in ditches and hollows, and +smooth away rough contours of the land, so as to obtain a huge, smooth +expanse on which aircraft might alight and manoeuvre without accident. +And after this came the building up of fences and entrance gates, the +erection of executive offices and restaurants, the provision of +telephone exchanges and other facilities--the creation in fact of a +modern aerodrome. + +A pupil to-day, if he decides to learn to fly, finds he has an ample +choice in the matter of a school. He may feel indeed that there is +almost an embarrassment of facilities. But there are certain very +definite requirements, in regard to any modern flying school; and if a +novice bears these in mind, and thinks of them carefully when he is +considering what school he shall join, he cannot go far wrong. First +there is the question of the aerodrome on which, and above which, the +pupil will undergo his instruction. This should be of ample size and +of an adequately smooth surface; and it should be so situated, also, +that it is free from wind eddies and gusts, such as are set up by +hills, woods, or contours of the land, and are likely to inconvenience +a novice when he makes his first flights. The best position for an +aerodrome is in a valley, not abrupt but gently sloping. With a flying +ground so placed, shielded well by nature on every hand, it may prove +sufficiently calm for instruction even on days when there is a gusty +wind blowing across more exposed points; and such a natural advantage +is of importance for a pupil. It may mean that he is obtaining his +tuition from day to day, when other pupils, learning to fly at grounds +less favourably situated, have to remain compulsorily idle, waiting +either for the wind to drop, or to veer to some quarter from which +their aerodrome is sheltered. + +It is very necessary, of course, in the operation of a flying school, +that there should be competent instructors; also a sufficient number +of these to prevent them from being over-taxed, or having more pupils +at any one time than they can handle conveniently. And it is greatly +to the advantage of a pupil if these instructors have been chosen with +an intelligent care. A man may be a capable pilot, and yet not have +the temperament that will suit him for imparting his knowledge to +others. The instructor who, besides being a fine flyer, has the +patience and sympathy of a born teacher, is by no means easy to find. +A school which does find such men, and retains their services, offers +attractions for a pupil which--in any preliminary visit he pays to a +school before joining it--he should look for keenly. And he should +make certain, too, that the school has a staff of skilled and +experienced mechanics. + +Another indispensable feature of a school is a sufficient number of +aeroplanes, machines suited specially for the purposes of tuition, and +maintained at a high efficiency. It has been no uncommon thing--though +here again one is writing of the past--for the total resources of a +school to comprise, say, two machines. Hence a couple of smashes would +put such a school temporarily out of action, and leave the pupils with +nothing to do but kick their heels, and wait until the machines had +been repaired. It is certainly an advantage, from the pupil's point of +view, if there are well-equipped workshops in connection with the +school he joins; also if the proprietors of his school have an ample +supply of engines. With facilities for repair work immediately at hand, +and with a spare engine ready at once to put in a machine--while one +that has been giving trouble is dealt with in the engine-shop--there +should always be a full complement of craft for the work of +instruction. When workshops are in operation in connection with a +school an opportunity is usually provided, also, for a novice to gain +some knowledge as to the mechanism and working of the aero-motor: and +this of course will be useful to him. + +There has been discussion as to the type of aeroplane on which one +should learn to fly; but in this question, as in that of an age limit +for airmen, it is extremely difficult, besides being unwise, to +attempt to frame a hard-and-fast rule. The monoplane, for instance, is +not an easy machine to learn to fly: it is not easy, that is to say, +compared with certain types of biplane. Yet numbers of pupils have +been taught on monoplanes, and this without accident. There is also a +question whether, among biplanes, it is best to learn on a tractor +machine--one that is to say with the engine in front of the main +planes--or on a "pusher" type of craft; this last mentioned having its +motor behind the planes. Aeroplanes of both types are in use; and it +would be advantageous, of course, for a novice to accustom himself to +handle either. But from the point of view of those who operate large +flying schools, and have to weigh one point against another, and +eliminate so far as possible the elements of risk or difficulty, there +are very distinct advantages in a "pusher" biplane, such as is +illustrated facing page 34. The control of such a machine is simple, +and can be grasped quite readily. It provides the novice, when he is +seated in it, with a clear and unobstructed view of the ground +immediately in front of and below him; and this, in the early stages +of tuition, is an extremely important point. A craft of such a type, +also, when built specially for instruction, can be given a very strong +alighting gear, and this makes for safety when a pupil is in his first +tests, and may be guilty of an abrupt or rough descent. Again, while +such a school machine as this is engined adequately, it is at the same +time comparatively slow in flight, and has the advantage also that it +will alight at slow speeds. In the air, too, it has a large measure of +stability, and is not too rapid in its response to its controls. It +gives a pupil what is very necessary for him in his first flights, and +that is a certain latitude for error. It is safe to say, indeed, +without being dogmatic, that a "pusher" biplane of the type +illustrated, if constructed specially for school work, offers a pupil +two very clearly marked advantages. These are: (1) A craft which he +can learn to fly quickly; and (2) A machine on which he can pass +through his tuition with the least risk of accident. + +This last-mentioned point is, naturally, one of extreme importance. It +is very necessary, apart from any question of personal injury, that a +pupil should be protected during his tuition from anything in the +nature of a bad smash. A man should start to learn to fly with full +confidence; the more he has the better, provided it is tempered with +caution. And if he can go through his training without accident, and +preserve the steadily growing confidence that his proficiency will +give him, he is on the high road to success as a pilot. But if he +meets with an accident while he is learning--some sudden and quite +unexpected fall--this may have a serious and a permanent influence on +his nerves, even if he escapes without injury. It happened frequently +in the early days that a promising pupil, a man who showed both +confidence and skill, had his nerve ruined, and all his "dash" taken +from him, by some unlucky accident while he was learning to fly. + +There are certain minor points a pupil should consider when he selects +a flying school--points which have reference mainly to his own comfort +and convenience. He will prefer, for instance, other things being +equal, a school that is near some large town or city, and not buried +away inaccessibly. It is a convenience also, and one that facilitates +instruction, if a pupil can obtain, quite near the aerodrome, rooms +where he can live temporarily while undergoing his instruction, and so +be able to reach the flying ground in a minute or so, whenever and at +any time the weather conditions are favourable. It is a convenience +again if, either on the aerodrome itself or immediately adjacent, +there is a canteen or restaurant where meals and other refreshments +can be obtained. Dressing-rooms and reading rooms, when provided by +the proprietors of a school, add to the comfort of the novice while he +is in attendance on the aerodrome. In winter, particularly, such +facilities are required. + +At a modern school, if it is well conducted, all heroics or +exceptional feats are discouraged. Pupils who want to do wild things +must be sternly repressed, even if only for the common good. The aim +is to train a certain number of pupils, not hastening over the tuition +but giving each man his full and complete course, and to do this with +a minimum of risk. In the early days of flying there were remarkable +exploits at the schools, and some very dangerous ones also. But +nowadays the reckless, happy-go-lucky spirit has gone. Tuition is +based on experience. Each pupil must submit to the routine, and listen +attentively to the instructions given him. There are no short +cuts--not at any rate with safety--in the art of learning to fly. + +The question is asked, often, how long it should take a man to learn +to fly. It is almost impossible, though, to specify any fixed time. A +very great deal must depend on the weather. A pupil who joins a school +in the summer is more likely, naturally, to complete his tuition +quickly than one who begins in the winter. In periods when there are +high and gusty winds it may be necessary to suspend school work for +several days. But at such times the pupil need not be completely idle. +Lectures on aviation are organised sometimes by the schools; while a +pupil should have opportunities also--as has been mentioned before--of +going into the engine-shop and studying the repair and overhaul of +motors and machines. + +It is on record that a pupil has learned to fly in a day, even in a +few hours; but here the circumstances, and the men, were exceptional. +Such an unusual facility represents one extreme; while as another, it +may happen that a man, owing to a combination of adverse circumstances, +is six months before he gains his certificate of proficiency. It may +be taken, as a rule, that a pupil should set aside say a couple of +months in order to undergo thoroughly, and without any haste, his full +period of tuition. School records prove, as a rule, that the pilots +who learn to fly abnormally quickly are apt to experience an abnormal +number of accidents at a later date, due principally to a lack of real +sound knowledge, which they should have gained during the period of +their tuition. One must learn to walk before one can run, and this +takes time; and the remark applies aptly to aviation. It is very +necessary for the pupil to spend as much time as he can on the +aerodrome. Much is to be learned, by an observant man, apart from the +actual time during which he is engaged with his instructor. If he +watches men who are highly skilled, he may gain many useful hints, +though he himself is on the ground. + + + + +CHAPTER II + +TEMPERAMENT AND THE AIRMAN + + +As aviation passed from its earliest infancy, and a number of men +began to fly, the temperament of the individual pupil, and the effect +of this temperament on his progress as an aviator, began to reveal +itself. And temperament does play a large part in flying; as it does +in any sport in which a man is given control of a highly sensitive +apparatus, errors of judgment in the handling of which may lead to +disaster. It is not, as a rule, until he has passed through his early +stages of tuition, and has begun to handle an aeroplane alone, and is +beyond the direct control of his instructor, that the temperament of a +pupil really plays its part. Up to this point he is one among many, +conforming to certain rules, and obliged to mould himself to the +routine of the school. But when he begins to fly by himself, and +particularly when he has passed his tests for proficiency, and is +embarking, say, on cross-country flights, then this question of +temperament begins really to affect his flying. + +All men who learn to fly--numbering as they do thousands +nowadays--cannot be endowed specially by nature for their task. There +is indeed a wide latitude for temperamental differences--always +provided that nothing more is required of a man than a certain average +of skill. But if a man is to become a first-class pilot, one +distinctly above the average, then the question of his temperament, as +it influences his flying, is certainly important. + +A rough classification of the pupils at a school--just a preliminary +sorting of types--shows as a rule the existence of two clearly-marked +temperaments. One is that of the man who is deliberate, whose +temperament guards him from doing anything perfunctorily or in a hurry; +the other is that of a man--a type frequently encountered +nowadays--who while being quick, keen, and intelligent, mars these +good qualities by a temperamental impatience which he finds it +difficult or impossible to control, and which makes him irritable and +restless at any suggestion of delay. + +Now the first of these men need not to be wholly commended, nor the +second entirely condemned. A capacity for deliberation, both in study +and in practice, is very useful when learning to fly. It will protect +a man from many errors, and render his progress sure, though it may be +slow. But something more than deliberation is required in the aviator +of distinction. There must be the vital spark of enterprise, the +temperamental quality which is known as "dash," the quick action of +the mind, in difficulty or peril, that will carry certain men to +safety through many dangers. This imaginative power is possessed as a +rule, though in ways that differ considerably, by the second type of +pupil we have described--the restless, impatient man. But in his case +this quality is, more often than not, marred by his instability; by +the lack of that judgment which is so necessary to counterbalance +imagination, but which is, unfortunately, not so often found. + +A man who decides to become an aviator, and particularly if he intends +to fly professionally, should ask himself quite seriously if his +temperament is likely to aid him, or whether perhaps it may not be a +danger. This point is certainly one of importance, though it cannot be +stated directly or decided in so many words. There is a vital question +at least that the novice should ask himself; and this is whether his +temperament, whatever its general tendency may be, includes a +sufficient leavening of caution. In the navigation of the air caution +is indispensable. A pupil must remind himself constantly that, though +it appears easy--and is indeed easy--to learn to handle a machine in +flight, no liberties must under any circumstances be taken with the +air. Every instant a man is flying he needs to remember the value of +caution. In the air one cannot afford to make mistakes. + +Naturally there is an ideal temperament for flying; but it is one +which, owing to the combination of qualities that are required, is +very rarely met with. The man who possesses it is gifted with courage, +ambition, "dash," and with a readiness in an emergency that amounts to +intuition. And yet these positive qualities are, in the ideal +temperament, allied to, and tempered by, a strong vein of prudence and +of caution. The pilot has absolute system, method, and thoroughness in +everything he does. The average pupil cannot hope to be so luckily +endowed. But he can study his personality, and seek to repress traits +that may seem harmful. + +There is need in flying for a sound judgment, one that will enable a +man to come to a decision quickly and yet accurately. Things happen +rapidly in the air. It is one of the grim aspects of flying that, just +at a moment when everything appears secure, a sudden disaster may +threaten. So it is of vast importance to a pilot, if he has to fly +regularly, that he should have an instinctive and dependable judgment; +a capacity for deciding quickly and without panic; a capacity, when +several ways present themselves of extricating himself from some +quandary, of being able to choose the right one, and of not having to +think long before doing so. This implies a combination really of +judgment and resource. The man of confidence, the man of resource, is +well endowed for flying. But he must not be over-confident. The +over-confident man is a menace to himself and to others. It is not a +proper spirit at all in which to approach aviation. We do not know +enough about the navigation of the air to be in the least +over-confident. The spirit, rather, should be one of humility--a +determination to proceed warily, and to make very certain of what +limited knowledge we do possess. + +Two of the worst traits in an aviator are impatience and irritability. +A man who has these temperamental drawbacks in a form which is +strongly marked, and who cannot control them, should not think of +becoming an aviator. The man who is impatient and irritable finds +himself out of harmony with the whole theory of aerial navigation. +There is a long list of "don'ts" in flying; in the handling of one's +machine, in the weather one flies in, in all the feats that one should +attempt and leave alone. A number of details must be memorised, and +must never be forgotten or overlooked, trivial though some of them may +seem. The frame of mind of the man who flies must be alert, yet quiet +and reposeful; he must be clear-headed, not hot-headed. The man who is +in a hurry, who ignores details when he sets out on a flight, is the +man who runs risks and is bound sooner or later to pay the penalty. +The perils of recklessness in flying are very great. The man who +"takes chances," who thinks he can do something when, as a matter of +fact, he has neither sufficient knowledge or experience, runs a very +grave and constant risk. It is the thoughtful, considering frame of +mind, particularly in a pupil, which is the safe one; but this must +not be taken to imply a type of man who lacks power of action. +Initiative, and a quick capacity for action, are most necessary in +aviation. New problems are being faced continually, and the brain +succeeds which is the most active and original. + + + + +CHAPTER III + +FIRST EXPERIENCES WITH AN AEROPLANE + +(AS DESCRIBED BY MR. GRAHAME-WHITE) + + +After a period of ballooning, which offers experience for an aviator +in the judging of heights and distances, and in growing accustomed to +the sensation of being in the air, I devoted a good deal of time and +attention--more indeed at the time, and in view of my other +responsibilities, than I could reasonably spare--to a study of the +theory of aeroplane construction, and to the making of models. This +was prior to 1909; Bleriot had not yet flown the Channel in his +monoplane. But when he did I put models aside, and determined to buy +an aeroplane and learn to fly. + +At the end of August, 1909, so that I might inspect the various +aeroplanes that were then available, and they were few enough, I went +to Rheims, in France, and attended the first flying meeting the world +had seen. At the aerodrome I met and talked with the great pioneers: +with Bleriot, fresh from his cross-Channel triumph; with Levavasseur, +the designer of the beautiful but ill-fated Antoinette monoplane, +which had, through engine failure, let Hubert Latham twice into the +Channel during his attempts to make the crossing; with Henry Farman +who, fitting one of the first Gnome motors to a biplane of his own +construction, flew for more than three hours at Rheims, and created a +world's record; and also with M. Voisin, whose biplane was then being +flown by a number of pilots. + +Finally, after careful consideration, I made a contract with M. +Bleriot to purchase from him, at the end of the meeting, a monoplane +of a type that appeared first at Rheims, and of which there was not +another model then in existence. This machine differed considerably +from the one with which M. Bleriot had flown the Channel. His +cross-Channel monoplane was a single-seated craft fitted with an +air-cooled motor of about 25 h.p. The machine I agreed to buy at +Rheims, and which was known as Bleriot No. XII., would carry two +people, pilot and passenger, while it had an 8-cylinder water-cooled +motor developing 60 h.p.--an exceptional power in those days. The +position of the occupants, as they sat in the machine, differed from +the arrangement in the cross-Channel Bleriot. In the latter the pilot +sat in a hull placed between the planes, and with his head and +shoulders above them. But in this new and larger machine the pilot and +passenger sat in seats which were placed below the planes. + +The craft was, as a matter of fact, an experiment, being built almost +purely for speed; hence its powerful motor. M. Bleriot's idea, in +constructing it, was to have a machine with which he might win the +Gordon-Bennett international speed race at Rheims. But this hope he +did not realise; nor did I obtain delivery of the craft I desired. +Bleriot, flying alone in this big monoplane, started in a speed flight +for the Gordon-Bennett; but he was only a quarter of the way round the +course, on his second lap, when the machine was seen to break suddenly +into flames and crash to the ground from a height of 100 feet. It was +wrecked entirely, but Bleriot was fortunate enough to escape with +nothing worse than burns about the face and hands, and a general +shock. The cause of the accident was that an indiarubber tube, fixed +temporarily to carry petrol from the tank to the carburettor, had been +eaten through and had permitted petrol to leak out, and to ignite, on +the hot exhaust pipes of the motor. + +The destruction of this monoplane was, to me, a great disappointment. +No other machine of the type was in existence, and I learned that it +would take three months to build one. M. Bleriot promised, however, to +put a machine in hand at once; and, as a special concession, I +obtained permission to go daily to the Bleriot factory and superintend +the construction of my own machine. This I did for a full period of +three months, working daily from 6 a.m. to 6 p.m., and gaining some +valuable knowledge as to aeroplane construction. + +On November 6, 1909, after delays which had tried my patience sorely, +I obtained delivery of the new machine--a replica of the craft that +had been destroyed at Rheims. It was too late that day to begin any +trials, so I and a friend who was with me arranged with M. Bleriot's +mechanics that we would be at Issy-les-Moulineaux early next morning, +and there put the craft through its preliminary tests. I can remember +we went to bed early, but sleep was impossible; we were both too +excited at the prospect that lay before us. So presently we got +up--this was at 2 a.m.--and drove out to the flying ground. + +It was pitch dark when we arrived at the aerodrome, but the morning +promised to be favourable. Foggy it was; but there was no wind, and +the fog seemed likely to clear. We roused the caretaker, and, after +lengthy explanations and considerable monetary persuasion, induced him +to open the shed and allow us to prepare the machine for its first +flight. Then we waited for the mechanics and the first rays of dawn. +We felt a desire to get the big engine started up, but had been warned +of the risk of doing this without the help of mechanics. Time passed +and still the mechanics did not come. At last, there being now +sufficient light, we tied the aeroplane with ropes to a fence, so as +to prevent its leaping forward, and then started up the motor by +ourselves. I swung the nine-foot propeller--the only way of starting +the engine; and at the first quarter-turn the motor began to fire. +Then, as is quite usual, there was an incident that had been +unforeseen in our excitement. We had forgotten to take up the slack of +the rope; and the consequence was that, as the engine started, the +machine gave a bound forward that was sufficient to knock me down. But +I was unhurt, and picked myself up quickly. Then I hurried round to +the driving seat and took my place at the control levers, motioning to +my friend, who was looking after the ropes, to cast these loose and +jump into the seat beside me. This was easier said than done. Directly +he released the ropes the machine began to move across the ground, +gathering speed very quickly; but he managed somehow, before the +machine was running too fast, to scramble into the seat beside me. + +Off we started across the aerodrome, the monoplane gaining a speed of +40 or 50 miles an hour. I did not attempt to rise from the ground, +feeling it very necessary at first to grow familiar with the controls. +So we sped along the ground for a distance of about a mile. Then, on +nearing the far end, I slowed down the motor and our speed dropped to +about 20 miles an hour. I wanted to turn the machine round on the +ground and run back again towards our starting point. But such a +manoeuvre, particularly for the novice, is far from easy. As the speed +of the machine is reduced, the pressure of air on the rudder is +lessened and so it loses its efficiency--in the same way that a ship +is difficult to steer when she begins to lose way. We were faced also +by another and a graver difficulty. Confused by the fog, which still +hung over the aerodrome, I had misjudged our position. We found we +were much nearer the end of the ground than I had imagined. In front +of us there loomed suddenly a boundary wall, against which it seemed +probable we should dash ourselves. There were no brakes on the machine; +no way of checking it from the driving seat. Our position seemed +critical. + +It was now that I shouted to my friend, telling him to jump out of the +machine as best he could, and catch hold of the wooden framework +behind the planes, allowing the machine to drag him along the ground, +and so using the weight of his body as a brake. This, with great +dexterity, he managed to do, and we came to a standstill not more than +a foot or so from the wall. This proved a chastening experience; we +pictured our aeroplane dashed against the wall, and reduced to a mass +of wreckage. Very cautiously we lifted round the tail of the machine. +It was impossible to switch off the motor and have a rest, because, if +we had stopped it, we should not have been able to start it again +without our gear, which was away on the other side of the ground. + +Now, having got the machine into position for a return trip across the +aerodrome, I accelerated the engine, and we started off back. For +about twenty minutes, without further incident, we ran to and fro; and +now I felt that I had the machine well in control--on the ground at +any rate. And so the next thing was to rise from the ground into the +air. I told my friend my intention, calling to him above the noise of +the motor; and I admired him for the calm way in which he received my +news. I should not have been surprised if he had demanded that I +should slow up the machine and let him scramble out. In those days it +was thought dangerous to go up even with a skilled and more or less +experienced pilot. How much greater, therefore, must have seemed the +risk of making a trial flight with me--a complete novice in the +control of a machine. But my friend nodded and sat still in his seat. +So I accelerated the motor and raised very slightly our rear elevating +plane. And then we felt we were off the ground! There was no longer +any sensation of our contact with the earth--no jolting, no vibration. +In a moment or so, it seemed, the monoplane was passing through the +air at a height of about 30 feet. This, to our inexperienced eyes, +appeared a very great altitude; and I made up my mind at once to +descend. This manoeuvre, that of making contact with the ground after +a flight, I had been told was the most difficult of all. It is not +surprising that this should be so. Our speed through the air was, at +the moment, about 50 miles an hour; and to bring a machine to the +ground when it is moving so fast, without a violent shock or jar, is a +manoeuvre needing considerable judgment. But, remembering that the +main thing was to handle the control lever gently, I managed to get +back again to the aerodrome without accident; and after this we turned +the machine round again and made another flight. + +The fog had cleared by now, and we were surprised to see a number of +people running across the ground towards us. First there came the +tardy mechanics; and with them were a number of reporters and +photographers representing the Paris newspapers. These latter +had--though I only found this out afterwards--been brought by the +mechanics in the expectation of being able to record, with their +notebooks and cameras, some catastrophe in which we were expected to +play the leading parts. Knowing the powerful type of monoplane I had +acquired, a machine not suited for a novice, the mechanics had felt +sure some disaster would overtake me. But, as it happened, their +anticipations were not fulfilled. The journalists and photographers +did not, however, have a fruitless journey. Though there was nothing +gruesome to chronicle, they found ample material, when they learned of +them, in the early morning adventures of myself and my friend with +this 60 h.p. monoplane. Next day, in fact, our exploits were given +prominence in the newspapers, and I received a number of +congratulatory telegrams; not forgetting one of a slightly different +character which came from M. Bleriot. He was flying at the time in +Vienna, and he warned me of the dangers of such boldness as I had +displayed--having regard to the speed and power of my machine--and +pleaded with me for a greater caution. + + + + +CHAPTER IV + +THE CONTROLLING OF LATEST-TYPE CRAFT + + +People are puzzled, often, when they try to explain to themselves how +it is that an aeroplane, which is so much heavier than air, manages to +leave the ground and to soar in flight. When balloons or airships +ascend, it is realised of course that the gas, imprisoned within their +envelopes, draws them upward. But the aeroplane--weighing with pilot, +passenger, and fuel perhaps several thousand pounds--rises without the +aid of a gas-bag and with nothing to sustain it but narrow planes; and +these do not beat, like the wings of a bird, but are fixed rigidly on +either side of its body. How is the weight of machine and man borne +through this element we cannot see, and which appears intangible? + +The secret is speed--the sheer pace at which an aeroplane passes +through the air. As a craft stands on the ground, its planes are +inoperative. Power lies dormant in the air, but only when it is in +motion, or when some object or apparatus is propelled through it at +high speed. Have you stood on a height, in a gale, and felt an air +wave strike powerfully against your body? The blow is invisible; but +you yield a step, gasping; and, had you wings at such a moment, you +would not doubt the power of the wind to sweep you upward. This is the +force the aeroplane utilises. + +If, on a calm day, you accelerate your motor-car to 60 miles an hour, +the air sweeps past you in a powerful stream; just as it would if you +were standing still, and there was a gale of wind. Instead of the wind +possessing the speed, in this instance, it is you who provide it. The +motor of an aeroplane, driving the propeller of the machine, turns +this at 1000 or more revolutions a minute, and causes its curved +blades to screw forward through the air as they turn, like those of a +ship's propeller through water--or a gimlet into wood. The propeller, +as it bores its way into the air, draws or pushes the aeroplane across +the ground; and the speed grows rapidly until the air, sweeping with +an increasing pressure beneath the planes, becomes sufficient to bear +the craft in flight. + +But the wing of an aeroplane would not sustain its load unless +designed specially to act upon the air. A man, if he is unlucky enough +to fall from a tall building, passes through the air at a high speed. +His body obtains no support from the air; so he crashes to the ground. +This is because his body is heavy, and presents only a small surface +to the air. To secure a lifting influence from the air, it must be +struck swiftly with a large, light surface. + +Men go to Nature when building wings for aeroplanes, and imitate the +birds. The wing of a bird arches upward from front to back, most of +the curve occurring near the forward edge; and this shape, when +applied to an aeroplane wing, is known as its camber. With an +aeroplane wing, if its curve is adjusted precisely, the air not only +thrusts up from below as a machine passes through it, but has a +lifting influence also from above; an effect that is secured by the +downward slope of the plane towards its rear edge. The air, sweeping +above the raised front section of the plane, is deflected upward, and +with such force that it cannot descend again immediately and follow +the downward curve of the surface. So, between this swiftly-moving air +stream, and the slope to the rear of the plane, a partial vacuum is +formed, and this sucks powerfully upward. With a single wing, +therefore, it is possible to gain a double lifting influence--one +above and one below. + +The building of aeroplanes, once their wing lift is known, becomes a +matter of precision. According to the speed at which they fly, and the +size and curve of their planes, machines will sustain varying loads. +In some machines, as a general illustration--craft which fly fast--the +planes may bear a load equal to 10 lbs. per square foot. In others the +loading may be less than 3 lbs. per square foot. + +Apart from raising a craft into the air, by the lifting power of its +wings, there is the problem of controlling it when in flight. The air +is treacherous, quickly moving. Gusts of abnormal strength, sweeping +up as they do invisibly, may threaten to overturn a machine and dash +it to earth. Eddies are formed between layers of warm and cold air. +There are, as a craft flies, constant increases or lessenings of +pressure in the air-stream that is sweeping under and over its wings; +and all these fluctuations influence its equilibrium. Unless, +therefore, a machine is automatically stable--and with craft of this +type we shall deal later--the pilot must be ready, by a movement of +the surfaces which govern the flight of the machine, to counteract +quickly, with a suitable action of his levers, the overturning +influence that may be exercised by a gust of wind. Here lies the art +of flying. A man is given a machine which, by the action of its motor +and propeller, will raise itself into the air; and it is his task, +when the craft is once aloft, to manipulate it accurately and without +accident, and to bring it to earth safely after he has made a flight. + +In the description of controlling movements which follows we shall, +for the sake of convenience, and for the sake also of brevity, deal +only with the type of "pusher" biplane to which reference has been +made already, and on which large numbers of pupils have been, and are +being, trained to fly. This casts no aspersion whatever on tractor +machines or on monoplanes. On either, if he has an inclination, a +pupil can undergo his instruction, and do so usually with success. But +explanation is rendered more easy, and there is less likelihood of a +dispersal of interest, if one machine is selected for illustration; +and our reasons for the choice of a "pusher" biplane, regarded from +the point of view of tuition, have been explained already. + +First, therefore, one may deal with raising the craft into the air, +and causing it to descend. In the photograph of the school machine +shown facing this page, it will be seen that the control surfaces are +indicated by lettering. In front of the biplane, on outriggers, is the +plane "A." This surface (aided in its action by a rear plane) governs +the rise or descent of the machine. When the motor is started, and the +propeller drives the biplane across the ground on its chassis B, the +machine would, if this lifting plane was held in a negative position, +continue to move forward on the earth and would make no attempt to +rise. In order to leave the ground, when the speed of the machine is +sufficient for its main-planes (C.C.) to become operative, and bear +its weight through the air, the pilot draws back slightly towards him +a lever, which is placed just to the right of his driving-seat and is +held with the right hand. A photograph which shows this lever, and the +other controls, appears facing page 36, the lever to which we are +referring being indicated by the figure 1. The effect on the aircraft +when the pilot draws back this lever--the motion being slight and made +gently--is to tilt up the elevating plane A, and this in its turn, +owing to the pressure of air upon it, raises the front of the machine. +The result of this alteration in the angle of the craft is that it +presents its main-planes at a steeper angle to the air. Their lifting +influence is increased, with the result that--at an angle governed by +the pilot with his movement of the elevating plane--they bear the +machine from the ground into the air. + + [Illustration: GRAHAME-WHITE SCHOOL BIPLANE (TYPE XV.) _Photo by + Topical Press Agency._ + + A.--The front elevating plane, which acts in conjunction with the + rear-plane marked A1; B.--The landing-chassis; C.C.--The main-planes; + D.D.--The ailerons; E.E.--The rudders; F.--Engine (a 60-h.p. Le Rhone) + and propeller.] + +A reverse movement of the elevator reduces the lift of the main-planes; +hence, when an aviator wishes to descend, he tilts down his elevator, +bringing his machine at such an angle that it is inclined towards the +ground. Then, switching off his engine so as to moderate the speed of +his descent, and by such manipulations as may be necessary of his +elevator, he pilots his craft to earth in a vol-plane, during which +gravity takes the place of his motor, and he is able--by steadying his +machine and bringing it into a horizontal position just at the right +moment--to make a gentle contact with the ground. + +A pilot must be able to do more than cause his aeroplane to ascend and +to alight: he must have means to check the lateral movements which, +under the influence of wind gusts, may develop while the biplane is in +flight. At the rear extremities of the main-planes as illustrated in +the photograph facing page 34--and marked D.D.--are flaps, or ailerons, +which are hinged so that they may be either raised or lowered. These +ailerons are operated, through the medium of wires, by the same +hand-lever which governs the movement of the elevator. This lever is +mounted on a universal joint, and can be moved from side to side as +well as to and fro. Should the biplane tilt, while flying, say towards +the left, the pilot moves his hand-lever sideways towards the right. +This is a natural movement, the instinct being to move the lever away +from the direction in which the machine is heeling. This movement of +the lever has the effect of drawing down the ailerons on the left-hand +side of the machine; on the side, that is to say, which is tilted down; +and the depression of these auxiliary surfaces, increasing suddenly +as they do the lifting influence of the main-planes to which they are +attached, tend to thrust up the down-tilted wings, and so restore the +equilibrium of the machine. + +In the operation of his ailerons, combined with the use of his +elevator, a pilot is given means to balance his craft while in flight. +One should not gain the impression that an aeroplane is threatening +ceaselessly to heel this way and that. This is not so. The machine has +a large measure of stability, apart from any manipulation of its +controls, and needs balancing only when some disturbance of the +atmosphere affects its equilibrium. Under favourable conditions, such +as a pupil will experience in his first flights, nothing more is +necessary with the hand-lever than a very slight but fairly constant +action; a similar motion, in a way, as is made by the driver of a +motor-car when he maintains, by his "feel" on the wheel, his sense of +control over the machine. In the controlling actions of an +aeroplane--and this is a fact which tends sometimes to the confusion +of the novice--nothing more is required, normally, than the most +delicate of movements. The difference say between ascending, and +skimming along the ground, is represented by a movement of the +hand-lever of only a few inches. Delicate, sure, quick, and firm; such +is the touch needed with an aeroplane. + +With the one hand-lever, as we have shown, it is possible for a pilot +to control the rise and descent, and also the lateral movements of his +machine; and there remains only the steering to be effected--the +movement from side to side, from right to left, or vice-versa. At the +rear of the biplane, as shown facing page 34, will be seen two +vertical planes, E.E. These, being hinged, will swing from side to +side; and they exercise a sufficient influence, when working in the +strong current of air that blows upon them when a machine is in flight, +to steer it accurately in any direction. The pilot, to operate this +rudder, rests his feet on a conveniently-placed bar, which is mounted +on a central swivel, and allows the bar to be swung by a pressure of +either foot. When the pilot needs to make a turn say to the left, as +he is flying, he presses his left foot forward. This swings the bar in +same direction; and, by a simple connection of wires running to the +tail of the machine, the rudders are made to swing over to the left +also, and the machine turns in response to them. A similar movement to +the right produces a right-hand turn. This foot rudder bar, being +numbered 2, is shown in the picture facing page 36. + + [Illustration: THE CONTROLS OF A SCHOOL BIPLANE. _Photo by Topical + Press Agency._ + + 1.--The upright lever which, working on a universal joint, operates + the elevator and ailerons; 2.--The bar, actuated by the pilot's feet, + which operates the rudders of the machine; 3.--The pilot's seat; + 4.--The passenger's seat.] + +Apart from the movements we have described, which are extremely simple, +a pilot needs also to maintain control over his motor. Near his left +hand, fixed to the framework just at one side of his seat, are levers +which govern the speed of the engine, also the petrol supply; while +close to them is the switch by which the ignition can be switched on +or off. + +A final word is necessary here, perhaps, and it is this: the glamour +and mystery which, in the early days, clung to the handling of an +aeroplane has now been dispelled almost entirely. A well-constructed +machine, flying under favourable conditions, requires surprisingly +little control; what it does, one may almost say, is to fly itself. + + + + +CHAPTER V + +THE STAGES OF TUITION + + +Flying schools--those which really can be described as such--have been +in operation now for seven years; and during this time, with thousands +of pupils going through their period of tuition, many very valuable +lessons have naturally been learned. To-day, at a well-managed school, +each stage in a pupil's instruction, mapped out as a result of +experience, is arranged methodically and with care; the idea being +that the novice should pass from one stage to another by a +smoothly-graduated scale, facilitating his progress and reducing +elements of risk. + +It is in the early morning, and again in the evening, that the flying +schools are most busy as a rule. At such times--morning and +evening--the wind blows with least violence; and it is very necessary +that a pupil, when he is handling craft for the first time, should +have weather conditions which are favourable. Summer and winter, as +soon as it is light, and granted conditions appear suitable, mechanics +wheel the aeroplanes from the sheds, and the instructors begin their +work. Should there be any doubt as to the weather, or as to the +existence, say, of difficult air currents, an instructor will fly +first, circling above the aerodrome at various heights, and satisfying +himself, by the behaviour of his machine, whether it will be safe for +the novices to ascend. If he pronounces "all well," school work begins +in earnest, and continues--provided the weather remains +favourable--until all the pupils have had a spell of instruction. +Towards the middle of the day, and in the afternoon, it is quite +likely the wind may blow and school work be suspended. But in the +evening again, when there is usually a lull, a second period of +instruction will be carried out. In well-equipped schools, to meet +such conditions as these, it is customary to provide two complete and +distinct staffs, both of instructors and mechanics. One staff takes +the morning spell of work, while the second is held in readiness for +the evening. This ensures that, both morning and evening, there shall +be available for instruction a fresh, alert, and unfatigued staff. + + [Illustration: REAR VIEW OF A SCHOOL BIPLANE. _Photo by Topical Press + Agency._ + + This photograph shows clearly the hinged ailerons fixed at the + extremities of the plane-ends for maintaining lateral stability: also + the rear elevating plane (which acts in conjunction with the + fore-plane mounted on outriggers at the front of the machine) and the + twin rudders.] + +A pupil will find that, as the first stage of his tuition, he is given +the task of familiarising himself with the controls of a school +biplane. The system we have described already, and a pupil should find +no difficulty in mastering it. Placing himself in the driving-seat of +the machine, while it is at rest on the ground, the pupil takes the +upright lever in his right hand, and rests his feet on the rudder-bar, +making the various movements of control, again and again, until he +finds he is growing accustomed to them, and can place his levers in a +position for an ascent or descent, or for a turn, without having to +wait while he thinks what it is necessary to do. + +In the next stage, a more interesting one, the pupil, occupying a seat +immediately behind his instructor, is taken for a series of passenger +flights. These accustom him to the sensation of being in the air, and +also train his eye in judging heights and distances. A minor point the +pupil should bear in mind, though his instructor will be quick to +remind him, is not to wear any cap or scarf that may blow free in the +rush of wind and become entangled with the propeller. Scarves need to +be tightly wrapped; while it is usual, with a cap, to turn it with the +peak to the back, and so prevent it from having a tendency to lift +from the head. Many pupils provide themselves with a helmet designed +to protect the head in case of an accident, and these are held firmly +in position. Should a passenger's cap blow off, and come in contact +with the propeller, it may be the cause of an accident. How +carelessness may lead to trouble, in this regard, will be gathered +from the following incident. + +Some slight repairs had been made one day to the lower plane of a +machine while it stood out on the aerodrome, and one of the workmen, +through inadvertence, had left lying on the plane, near its centre, a +roll of tape. The pilot decided to make another flight, and the motor +was started and the machine rose. Suddenly the aviator was startled by +a sound like a loud report, which seemed to come from the rear of his +machine. The craft trembled for a moment, and he feared a structural +collapse. Nothing worse happened, however, and he was able to pilot +his machine in safety to the aerodrome. What had happened, it was then +ascertained, was that the roll of tape, sucked back in the rush of +wind, had been drawn into the revolving propeller and had broken a +piece out of it. Luckily the impact had not been heavy enough to +damage the propeller seriously, or cause it to fly to pieces. + +A problem with which the pupil will be faced in his first flights, +particularly if he is learning in winter, will be that of keeping +himself warm. The speed at which an aeroplane travels, combined with +the fact that it is at an elevation above the ground, renders the +"bite" of the cold air all the more keen, and makes it difficult very +frequently, even when one is warmly clad, to maintain a sufficient +warmth in the body, and particularly in the hands and feet. The +question of cold hands is, from a pilot's point of view, often a +serious one. There is a case on record of an aviator who, his hands +being so numbed that his fingers refused to move, found he could not +switch off his motor when the time came to descend; and so he had to +fly round above the aerodrome, several times, while he worked his numb +fingers to and fro, and beat some life into them against his body. At +last, having restored their circulation to some extent, he was able to +operate the switch and make a landing. While on active service in +winter, after flying several hours at high altitudes, and in bitter +cold, the occupants of a machine have descended in such a numbed +condition, despite their heavy garments, that it has been found +necessary to lift them out of their seats. But a pupil need not face +such hardships as these. He will be flying for short periods only, and +at low altitudes; so if he makes a few wise purchases from among the +selection of flying gear now available, and particularly if he equips +himself with some good gloves, he should be able to keep sufficiently +warm in the air, even if he is going through his training in winter. + + [Illustration: POWER-PLANT OF A SCHOOL BIPLANE. _Photo by Topical + Press Agency._ + + Showing the 60-h.p. Le Rhone Motor, with its mounting on the machine, + and the method of attaching the propeller. The fuel tank is also + visible; and, forward at the front of the machine, the seats of + passenger and pilot.] + +A pupil will feel curious, naturally, as to his sensations in the +first flights he makes with his instructor. Of the exact moment when +the machine leaves ground he will be unaware probably, save for the +cessation of any jolting or vibration, such as may be caused by the +contact of the running wheels with the surface of the aerodrome. His +first clearly-marked sensation, when in actual flight, will occur most +likely when the pilot rises a little sharply, so as to gain altitude. +Then the pupil will have a feeling one might liken to the ascent, in a +motor-car, of a steep and suddenly-encountered hill; though in this +case the hill is invisible, and there is no earth contact to be felt. +This sensation of climbing is exhilarating; and when the pilot makes a +reverse movement, descending towards the ground, the feeling is +pleasant enough also, provided the dive is not too steep. + +The pupil's chief sensation, probably, will be that of the rush of +wind which beats against him. Some people feel this much more than +others. There is sometimes a feeling--it is no more than temporary--of +inconvenience and of shock. The pupil feels as though his breathing +was being interfered with seriously; as though the pressure was so +great he could not expel air from his lungs. But this sensation, even +when it is experienced, is short-lived. In a second flight, quite +often, the novice finds that this oppression diminishes very +perceptibly; and soon he does not notice it at all. Motoring +experience proves useful here, particularly high-speed driving on a +track. + +Some confusion is felt by the pupil, as a rule, and this is only +natural, in regard to the pace at which the aeroplane travels through +the air, and at the way in which the ground seems to be tearing away +below. Occasionally, in a first flight, this impression of speed, and +of height, produce in the pupil a sensation of physical discomfort; +but it is one again which, in the majority of cases, is quickly +overcome. A few balloon trips are a useful preliminary to flights in +an aeroplane. They familiarise one in a pleasant way with the +sensation of height, and accustom the eye also to the look of the +ground, as it passes away below. + +While he is making his first flights with the instructor, and apart +from analysing his sensations, the pupil will observe the lever +movements made by the pilot in controlling the machine; and the fact +that will impress itself upon him, as he watches these movements, is +that they are not made roughly or spasmodically, but are almost +invariably gentle. During these flights as a passenger, and after he +has accustomed himself to the novelty of being in the air, the pupil +will be allowed by the instructor to lean forward and place his hand +on the control lever; and in this way, by actually following and +feeling for himself the control actions the pilot makes, he will gain +an idea of just the extent to which the lever must be moved, to gain +any specific result in the flight of the machine. + + [Illustration: MOTOR AND OTHER GEAR--ANOTHER VIEW. _Photo by Topical + Press Agency._ + + This shows the constructional unit that is formed, on a suitably + strong framework of wood, by the engine, propeller, and fuel tank, and + also by the seats for the pilot and passenger.] + +The next stage of tuition is that in which a pupil is allowed to +handle a biplane alone, not in flight though but only in "rolling" +practice on the ground--driving the machine to and fro across the +aerodrome. The motor is adjusted so that, while it gives sufficient +power to drive the machine on the ground and render the control +surfaces effective, it will not permit the craft to rise into the air. +This stage, a very necessary one, teaches the pupil, from his own +unaided experience just what movements he must make with his levers to +influence the control surface of the machine, and to maintain it, say, +on a straight path while it runs across the ground. One of the +discoveries he will make is that the biplane, if left to itself, shows +a tendency to swerve a little to the left--the way the propeller is +turning; but this inclination may be corrected, easily, by a movement +of the rudder. + +The pupil learns also to accustom himself, while in this stage, to the +engine controls which have been explained already; and he is not +likely to be guilty of the error of one excitable novice who, while +driving his machine back on the ground towards the sheds at an +aerodrome, after his first experience in "rolling" became so confused, +as he saw the buildings looming before him, that he lost his head +completely and forgot to switch off his motor. The result was that the +aeroplane, unchecked in its course, crashed into some railings in +front of the sheds and stood on its head. Not much damage was done +however, and the novice was unhurt. He seemed as surprised as anyone +at what had happened, and confessed that, for the moment, his mind had +been an utter blank. + +A pupil continues his practice in "rolling" till he can drive his +machine to and fro across the aerodrome on a straight course, and with +its tail raised off the ground; the latter action being obtained by +the pupil by means of a suitable movement of the vertical lever which +operates his elevating planes. + +Now comes the time when a pupil, taking the pilot's seat, and with the +instructor sitting behind him--so as to be ready, if necessary, to +correct any error the novice may make--begins his first short flights +across the aerodrome. He rises only a few feet to begin with, and +flies on a straight course, alighting each time before he turns, and +running his machine round on the ground. He repeats this test until +his instructor feels he is sufficiently expert to take the machine +into the air alone. When this stage is reached, the instructor leaves +his position behind the pupil, and the latter goes on with his +practice till he can fly the length of the aerodrome alone, landing +neatly and bringing his machine round on the ground, and then flying +back again to his starting point. + +In the early days of flying schools, before a pupil went through any +regular system of instruction, there were remarkable incidents in +regard to these first flights. In one case a pupil, having bought his +own aeroplane from the proprietors of a school, insisted on having +installed in it a motor of exceptional power. When the time came for +him to make his first flight alone, and he opened the throttle of this +engine and it began to give its full power, the aeroplane ran only a +short distance across the ground, and then leapt into the air. The +engine was in charge of the machine, in fact, and not the pupil. Away +above the aerodrome, and beyond its limits, in a strange, erratic +flight, the biplane made its way. As the pupil struggled valiantly +with his engine switch, which appeared to have become jammed, he made +unconscious and jerky movements of his control levers. One moment the +machine would ascend a little, the next it would approach nearer the +ground; then it would swing either right or left. Those watching from +the aerodrome held their breath. But with the luck of the beginner, a +luck which is proverbial and sometimes amazing, the pupil managed at +length to stop his motor and land without accident--though by no means +gracefully--in an abrupt gliding descent. + + [Illustration: PUPIL AND INSTRUCTOR READY FOR A FLIGHT. _Photo by + Topical Press Agency._ + + The pupil, occupying in this case the driving seat, has in his right + hand the lever controlling the elevator and ailerons, while his feet + are on the bar which operates the rudder. The instructor (in the + passenger's seat) is demonstrating how, when necessary, he can place + his hand on the control lever, above that of the pupil, and correct + any error in manipulation of which the latter may be guilty.] + +Another story concerns one of those temperamentally reckless, +happy-go-lucky men who, though providence seems to watch over them, +are an anxiety nevertheless to their instructors. This pupil, breaking +the rules of a school, flew out on one of his first flights beyond the +limits of the aerodrome, disappearing indeed from the view of those +near the sheds. Not far from the aerodrome lay a main road, with +tramway-lines along it. A tram, with passengers on top, happened to be +passing down the road; and it was to the astonishment of these +passengers, and to their perturbation as well, that they observed an +aeroplane in full flight, moving very low across a neighbouring field, +and bearing down straight towards them. The machine passed, indeed, +unpleasantly close above their heads, and then vanished as +dramatically as it had appeared. Its pilot, as may be guessed, was the +pupil who had disobeyed orders, and was now on a wild and erratic +flight. Presently, after swerves and wanderings over the surrounding +country, he was discerned making his way back towards the aerodrome, +still flying unreasonably low. Some trees bordered one end of the +aerodrome; and towards these, as though he meant to finish his exploit +by charging into them, the novice was seen to be steering an +undeviating course. Nearer he came to them, and still he did not turn +either right or left. The instructor, and those gathered with him, +made up their minds that nothing could avert an accident. But it +happened that there was, between two of the trees, a space only large +enough for an aeroplane to pass through. A skilled pilot, a man of +experience, would not have cared to risk his machine in an endeavour +to creep between those trees. But this pupil, a complete novice, +steered boldly towards the opening and slipped through it with a +precision that would have aroused the envy of an accomplished pilot. +Then he landed on the aerodrome and climbed in leisurely fashion from +his machine--"not having turned a hair," as the saying goes. The +remarks of the instructor when he neared the machine, and began to +unburden himself, do not appear to be on record, and no doubt this is +as well. + +Having shown his ability to make a succession of straight flights, +taking his machine into the air with precision and landing without +awkwardness, the pupil finds himself faced next with the problem of +turning while in the air. On this stage, however, he is not allowed to +embark alone. The instructor takes his place again in the passenger's +seat, so as to be ready to help the novice should he become confused, +or find himself in any difficulty. Turns to the left are attempted +first; and the reason is that, the propeller of the aeroplane +revolving to the left--and the motor too if it is a rotary one--the +machine has a tendency which is natural to turn in this direction. +Half turns only are tried at first, the pupil landing before he has +completed the movement. In making these first turns a pupil finds that, +apart from his action with the rudder-bar, it is necessary to employ +the ailerons slightly, so as to prevent the biplane from tilting +sideways. The outer plane-ends of the machine have indeed, when a turn +is being made, a natural tendency to "bank" as it is called, or tilt +upward; the reason being that, as the machine swings round, these +outer plane-ends, moving faster for the moment than the wing-tips on +the inside of the turn, exercise a greater lift, and have an +inclination to rise. An experienced aviator, having learned what is a +safe "banking" angle, makes a deliberate use of this tendency when he +is turning, and may on occasion even exaggerate it, to facilitate the +swing of his machine on a very rapid turn, and to prevent it skidding +outwards. But with the novice, engrossed completely as he is with the +mere problem of getting his machine round in the air, "banking" is an +art that must be deferred for awhile. It is perilously easy, for a +beginner, to overstep the danger-line between a safe "bank" and a +side-slip. + + [Illustration: PUPIL AND INSTRUCTOR IN FLIGHT (1). _Photo by Topical + Press Agency._ + + A school biplane is seen just after it has left the ground, with the + pupil at the control levers, and the instructor seated behind + him--ready, if necessary, to correct any error the novice may make.] + +It is not long before the pupil can make a full left-hand turn; and +then he goes on to perfect himself in this movement, flying alone now, +and repeating the turn till he feels he can make it with confidence, +and at a fair height. + +And now he comes to his final evolutions. Having mastered the +left-hand turn, he proceeds to make one to the right. It used to be +the contention--a contention that is now disputed--that in this +movement, if the pupil employed his rudder-bar only, he would find the +biplane showed an inclination to rise; a tendency due to the +gyroscopic influence of the engine and propeller which--assuming a +rotary engine is used--are now revolving in the opposite direction to +that on which the machine is turned. What the pupil was recommended to +do, in order to counteract this rising movement, was to tilt down his +elevator a little, as he would in making a descent. + +When right-hand turns can be made with the same facility as those to +the left, the pupil begins to combine the two without descending, +making left turns and right turns, and so achieving in the air a +series of figures of eight. He learns also to fly a little higher, +thus preparing himself for one of his certificate tests. + +There are now certain very important rules which, in the navigation of +his craft, he must accustom himself to bear constantly in mind. Should +the engine of his machine, for example, betray any signs of failing, +he must tilt down his elevator very promptly, and place his craft in a +position for a descent. If he does not do this, and should the motor +stop before he has his biplane at an angle for descent, the machine +may lose speed so quickly, and its tail-planes show such a tendency to +droop--owing to the lessening of pressure on their surfaces, +consequent upon the failure of the motor--that there is a risk of the +craft coming to a standstill in the air and then either falling +tail-first, or beginning a side-slip that may bring it crashing to the +ground. + +The pupil must learn also, and this again is important, not to force +his machine round on a turn while it is climbing. If he does so the +power absorbed in the ascent, combined with the resistance of the turn, +may so reduce the speed of the machine that it threatens to become +"stalled," or reach a standstill in the air, with the result that it +either side-slips or falls tail-first. The procedure the pupil is +taught to follow is this: when he leaves the ground he climbs a little, +then he allows his machine to move straight ahead; then he proceeds +to ascend again for a spell, repeating afterwards the horizontal +flight. In this way he ascends by a series of steps, like climbing a +succession of hills in a car; and his turns should be made only during +the spells when he is flying horizontally. + +In this stage of his tuition, the pupil must learn also to make a +vol-plane, or descent with his engine stopped. The essential point to +be borne in mind, here, is that an aeroplane will continue in flight, +and remain under control, even when it is no longer propelled by its +engine. But what the aviator must do, should his engine stop through a +breakdown, or should he himself switch it off, is to bring the force +of gravity to his aid, and maintain the flying speed of his craft by +directing it in a glide towards the ground. Provided he does this, and +keeps his machine at such an inclination that it is moving at a +sufficient speed through the air, he will find that the craft +maintains its stability and that he has full command over its control +surfaces, being able to turn, say, right or left, or either increase +or slightly decrease the steepness of his descent. But all the time, +of course, seeing that it is gravity alone which is giving him his +flying speed, he is obliged to plane downward. + + [Illustration: PUPIL AND INSTRUCTOR IN FLIGHT (2). _Photo by Topical + Press Agency._ + + This shows clearly how the instructor, from his seat behind the pupil, + can lean forward and, by placing his hand on the control lever, check + the novice in an error of manipulation.] + +A vital point to remember, when a pupil is handling a "pusher" type of +biplane, is to incline the machine well downward, by a use of the +elevator, before switching off the motor. Unless this is done, and if +the machine is, say, at its normal horizontal angle when the engine is +stopped, the sudden removal of pressure from the tail-planes of the +craft, brought about by the absence of the wind-draught from the +propeller, may cause the tail so to droop as to render inoperative any +subsequent action of the elevator. When the tail droops, the +main-planes are set at a steep angle to the air, and this has a +slowing-up influence on the whole machine. It threatens therefore to +stand still in the air; its controls become useless; and the pupil is +faced probably with the danger of a side-slip. + +A story will illustrate this point; and it is one that has a special +significance, seeing that the error which might have cost him his life +was made by an aviator of experience. He had learned to fly on a +monoplane, and had devoted his subsequent flying, for many months, to +this one type of machine. Then he found himself associated with an +enterprise in which a number of "pusher" biplanes were employed, and +he decided that it would be useful for him to become accustomed to +this type of machine. His flying experience of course helped him, and +he soon found himself passing to and fro above the aerodrome, the +biplane well in hand. Then he thought he would make a vol-plane, with +his motor stopped, as he had been in the habit of doing in a +monoplane. He switched off his engine without further thought, and +moved his elevator to a position for the descent. But it was here that +he made the mistake. In a monoplane, which has the weight of the +engine and other gear well forward in the machine, the bow has a +natural tendency to tilt down when the motor is cut off--particularly +as the propeller-draught ceases to sweep under the sustaining planes. +Therefore one can, in such a machine, switch off safely without first +shifting the elevator, and getting the bow down as a preliminary. What +the pilot had forgotten, for the moment, was the essential difference +between monoplane and biplane. When he had switched off the engine in +the biplane, and moved his elevator as he was accustomed to do, he +found to his dismay that the machine failed to respond. Instead of +pointing its bow down, indeed, it began to tilt rearward. Also, and +this fact was noted by the airman with even more dismay, the craft +lost forward speed so rapidly that it became uncontrollable. The next +moment, the pilot helpless in his seat, the machine began a side-slip +towards the ground. One sweep it made sideways, falling till it was +not far short of the surface of the aerodrome. It paused an instant, +then began a side-slip in the opposite direction. But here good +fortune came to the pilot's aid. In this second swing, the machine +being near the ground, it came in contact with the surface of the +aerodrome before the "slip" had time to develop any high rate of +speed. The biplane took the ground sideways, breaking its +landing-chassis and damaging the plane-ends which came first in +contact with the earth. But the pilot emerged from the wreckage +unhurt. The accident was a lesson to him, though, as it was to others, +and as it should be to all pupils. A machine must be in a gliding +position before the engine is switched off. + +The art of the accomplished pilot, granted there is no reason for him +to reach earth quickly, is to glide at as fine an angle as is possible, +consistent of course with maintaining the speed of the machine +through the air, and so preserving his command over its controls. A +beautifully-timed, fine glide, the machine stealing down gracefully, +and touching the aerodrome light as a feather, at a precise spot the +airman has decided on even when he was several thousand feet high, is +a delightful spectacle for the onlooker, and a keen pleasure +also--from the point of view of his manipulative skill--to the aviator +himself. But a pupil, at any rate in his first attempts, must not +concern himself too much with any idea of a fine or graceful glide. It +is his business to get to the ground safely, and not trouble too much +whether his method is accomplished, or merely effective. Once with the +bow of his machine down, and his motor switched off, it must be his +concern to maintain the forward speed of his machine, which can be +done only by holding it well on its dive. For the novice, if he +attempts any fine or fancy gliding, there is the very real danger that, +in his inexperience, he may lose forward speed to such an extent that +his controls become inoperative, and his machine threatens to +side-slip. One's ear should, apart from the inclination of the machine, +and the sensation of the descent, help one materially in judging the +speed of a glide. There is a "swish" that comes to the ear, now the +engine is no longer making its clamour, which gives a guide to the +pace of one's downward movement. Aviators who are skilled, and have +done a large amount of flying, are able to judge with accuracy, by the +ear alone and without the aid of a mechanical indicator, what their +speed is as they pass through the air. + + [Illustration: PUPIL AND INSTRUCTOR IN FLIGHT (3). _Photo by Topical + Press Agency._ + + Here the pupil is descending in a glide with his engine stopped, the + cylinders of the rotary motor being clearly visible.] + +Having held his machine firmly on its glide, till it is quite near the +surface of the aerodrome, the pupil has next to think of making a neat +contact with the ground. The art here is, at a moment which must be +gauged accurately, to check the descent of the machine by a movement +of the elevator--to "flatten out," as the expression goes. If the +movement is made neatly the craft should, when only a few feet from +the ground, change from a descent into horizontal flight, and continue +on this horizontal flight for a short distance, losing speed naturally +each moment--seeing that there is no driving power behind it--and so +losing altitude also through its decrease in speed, until its wheels +come lightly in contact with the ground, and it runs forward and then +stands still. What the novice may do, if he is not careful, is to +"flatten out" when he is too high above the ground. The result is that +the machine slows up till it stands still in the air, robbed of its +speed, and then makes what is called a "pancake" landing: it descends +vertically, that is to say, instead of making contact with the ground +at a fine angle and with its planes still supporting it; and the +effect of such a "pancake," if the machine comes down with any force, +may be that the landing-chassis is damaged, or perhaps wrecked. But as +a rule, remembering that he has careful instruction to guide him +before he attempts a gliding descent, the pupil masters the art of +landing without difficulty, and without mishap. + +Now, after repeating perhaps certain of his evolutions, at the +discretion of his instructor, in order to make sure that he can +accomplish them with ease, the pupil is ready for the tests which will +give him his certificate of proficiency. + + + + +CHAPTER VI + +THE TEST FLIGHTS + + +The sport of aviation is controlled throughout the world, and flying +tests and events of a competitive character are governed, by the +International Aeronautical Federation. To the deliberations of this +central authority are sent delegates from the Aero Clubs of various +countries; and to these Aero Clubs, each in its respective country, +falls the task of governing flight, according to the rules and +decisions of the central authority. In Britain, controlling aviation +in the same way that the Jockey Club controls the Turf, we have the +Royal Aero Club of the United Kingdom; and it is this body, acting in +its official capacity, which grants to each new aviator, after he has +passed certain prescribed tests, a certificate which proclaims him a +pilot of proved capacity, and without which it is impossible for him +to take part in any contests held under the auspices of the Club. The +certificate, which is of a convenient size for carrying in the pocket, +contains a photograph of the pilot for purposes of identification, and +specifies also the rules under which the certificate is issued and +held. + +The theory of these tests, as imposed by the Club before it grants its +certificates, is that the novice should--so far as is possible in one +or two flights, made over a restricted area, and in a limited space of +time--be called on to show that he has a full control over a machine +in what may be called the normal conditions of flight. He is asked to +ascend, for instance, and gain a fair flying altitude; then to make +such evolutions as will demonstrate his command over the control +surfaces of the machine; and finally to show that he can, with his +motor switched off, descend accurately in a vol-plane, and bring his +machine to a halt within a specified distance of a mark. The tests are +set forth, officially, as follows:-- + + _A and B._ Two distance flights, consisting of at least 5 kilometres + (3 miles 185 yards) each in a closed circuit, without touching the + ground; the distance to be measured as described below. + + _C._ One altitude flight, during which a height of at least 100 metres + (328 feet) above the point of departure must be attained; the descent + to be made from that height with the motor cut off. The landing must + be made in view of the observers, without re-starting the motor. + +The rules drafted by the Club to govern these flights +are set forth herewith:-- + + The candidate must be alone in the aircraft during the tests. + + The course on which the aviator accomplishes tests A and B must be + marked out by two posts situated not more than 500 metres (547 yards) + apart. + + The turns round the posts must be made alternately to the right and to + the left, so that the flights will consist of an uninterrupted series + of figures of eight. + + The distance flown will be reckoned as if in a straight line between + the two posts. + + The alighting after the two distance flights in tests A and B shall be + made:-- + + (_a_) By stopping the motor at or before the moment of touching the + ground. + + (_b_) By bringing the aircraft to rest not more than 50 metres + (164 feet) from a point indicated previously to the candidate. + + All alightings must be made in a normal manner, and the observers must + report any irregularity. + +These flights as specified to-day, though they present no difficulty +to the pupil who has been well trained, are more stringent than they +were in the first scheme of tests as prescribed by the Club, and as +enforced for several years. In those early rules the distances were +the same as they are to-day, but in the altitude flight the height +required was only 50 metres (164 feet)--just half the height specified +to-day. It was not laid down, either, in the first rules, that the +engine should be stopped in this altitude flight when at the maximum +height, and that the descent should be made in a complete vol-plane, +without once re-starting the motor. As originally framed, indeed, the +rule as to the control of the engine in this altitude test was the +same as in regard to the distance flights--_i.e._, that it should be +stopped "at or before the moment of touching the ground." What the +present rule means, in this respect, is that the pupil must be really +proficient at making a vol-plane, without any aid at all from his +engine, before he can hope to pass the test; and such a proved +skill--say in the making of his first cross-country flight, should his +engine fail suddenly--may spell the difference between a safe or a +dangerous landing. + +The test flights for the certificate, undertaken only in such weather +conditions as the pupil's instructor may think suitable, are watched +by official observers appointed by the Royal Aero Club. It is the +business of these observers, when the prescribed flights have been +made, to send in a written report concerning them to the Club; and +acting on this report, after it has been considered and shown to be in +order, the Club issues to the pupil his numbered certificate. With the +successful passing of his tests the pupil's tuition is at an end. He +is regarded no longer as a novice, but as a qualified pilot. + + + + +CHAPTER VII + +PERILS OF THE AIR + + +There are people, very many people, who still regard flying as an +undertaking of an unreasonable peril, essayed mainly by those who are +in quest of money, notoriety, or sensation at any price. Such +people--still to be met with--have one mental picture, and one only, +of the flight of an aeroplane. They imagine a man in the air--and this +mere idea of altitude makes them shudder; and they picture this man in +a frail apparatus of wood and wire, capable of breaking to pieces at +any moment; or even if it does not break, needing an incessant +movement of levers to maintain it in a safe equilibrium; while they +reckon also that, should the engine of the machine suffer any +breakdown, the craft will drop to earth like a stone. Prejudice dies +hard; harder no doubt in England than in other countries. There are +still people, not few of them but many, who would be ready to declare, +offhand, that one aeroplane flight in six ends in a disaster. + +It is a truism, but one that has a peculiar truth in aviation, to say +that history repeats itself. To-day we find large numbers of people +who still cherish the opinion that--save perhaps when on service in +war--it is nothing less than criminal foolishness for men to ascend in +aeroplanes. That attitude of mind persists; the growing safety of +flight has not affected it to any appreciable degree. But those eager +for the progress of aviation need not despair, or imagine that their +particular industry is being treated with any exceptional +disapprobation. They have only to look back a little in our history, +no great distance, and read of the receptions that were accorded the +first pioneers of our railways. Public meetings of protest have not +been held to condemn aviation; yet they were frequent in the days when +the first railways were projected. Vast indignation was indeed aroused; +it was declared to be against all reason, and a matter of appalling +risk, that people should be asked to travel from place to place in +such "engines of destruction." But the railways managed to survive +this storm. They were placed here and there about the country; they +were improved rapidly; and it would be hard, to-day, to find a safer +place than the compartment of a railway train. + +Motor-cars, when their turn came, had to go through a similar ordeal. +There was the same indignation, the same chorus of protest; and when +the first of the pioneers, greatly daring, began actually to drive +their cars on the public highway, there were people who believed, and +who declared forcibly, that to permit such machines on our roads was +the crime of the century. Had not these pioneers struggled valiantly, +sparing neither time nor money, it is possible that the motor-car +might have been driven from the highway. But here again progress, +though it was retarded, could not be checked. The motor-car triumphed. +It grew rapidly more reliable, more silent, more pleasing to the eye; +and to-day it glides in thousands along our roads, a pleasure to those +who occupy it, a nuisance neither to pedestrians nor to other wheeled +traffic; more under control when it is well driven, and more ready to +stop quickly when required, than any horsed vehicle which it may have +replaced. At one time the papers were full of such headlines as: +"Another Motor-car Accident." Each small mishap received prominent +attention: and to the majority of people it seemed the wildest folly +to travel in such vehicles. Yet to-day--such is progress--these same +people ride in a motor-car, or a motor-cab, quite as a matter of +course and without a thought of risk. + +When one discusses flying and its dangers, it is essential to maintain +an accurate sense of proportion. In the very earliest days, for +instance, it must be realised that the few men who then flew--they +could be numbered on the fingers of one hand--exercised the greatest +caution. They did not fly in high winds; they treated the air, +realising its unknown perils, with a very great and a very commendable +respect. Thus it was that thousands of miles were flown, even with the +crudest of these early machines, and with motors that were constantly +giving trouble, without serious accident. But after this, and very +quickly, the number of airmen grew. New aviators appeared every day; +contests were organised extensively; there were large sums of money to +be won, provided that one pilot could excel another. And the spirit of +caution was abandoned. Even while they were still using purely +experimental machines--craft of which neither the stability nor the +structural strength had been tested adequately--there grew a tendency +among airmen to fly in higher winds, to subject their machines to +greater strains, and to attempt dangerous manoeuvres so as to please +the crowds who paid to see them fly. + +It was not surprising, therefore, that flying entered upon an era of +accidents. Such disasters were inevitable--inevitable, that is to say, +in view of the tendencies that then prevailed; though it is a +melancholy reflection that, had men been content to go ahead with the +same slow sureness of the pioneers, many of those lives which were +lost could have been saved. + +To the public, not aware exactly of all that was going on, it appeared +as though the navigation of the air, instead of growing safer, was +becoming more dangerous. There were suggestions, indeed, made quite +seriously and in good faith, that these endeavours to fly should cease; +that the law should step in, and prevent any more men from risking +their lives. What people failed to realise, when they adopted this +view, was that instead of one or two men flying there were now +hundreds who navigated the air; that flights in large numbers were +being made daily; that thousands of miles instead of hundreds were +being traversed by air--and often under conditions the pioneers would +have considered far too dangerous. These facts, had they been realised, +would have shown people what was actually the true state of affairs; +that, though accidents seemed numerous, and were indeed more frequent +than they had been in the earliest days of flying, they were as a +matter of proportion, reckoning the greater number of men who were +flying, and the thousands of miles which were flown, growing steadily +less frequent. + +There was this important fact to be reckoned with also. Each accident +that happened taught its lesson, and so made for future safety. A +considerable number of those early accidents can, for instance, be +traced to some structural weakness in a machine. The need in an +aircraft then, as now, was lightness; and in those days designers and +builders, owing purely to their inexperience, had not learned the art, +as they have to-day, of combining lightness with strength. So it was +that, as more powerful motors began to be fitted to aeroplanes, and +greater speeds were attained, it happened sometimes, when a machine +was being driven fast through a wind, that a plane would collapse, and +send the machine crashing to the ground; or in making a dive, perhaps, +either of necessity or to show his skill, a pilot would subject his +machine to such a strain that some part of it would break. + +From such disasters as a rule, greatly to be regretted though they +were, the industry emerged so much the wiser. The strength of machines +was increased; the engines which drove them were rendered more +reliable; and gradually too, though none too rapidly, the airmen who +piloted them grew in knowledge and skill. But all this time, while +flying was being made more safe, there were accidents frequently for +the papers to report; and this was due entirely to the fact that there +were now thousands of men flying, where previously there had been +fifties and hundreds. The public could not realise how rapidly the +number of airmen had grown; that practically every day, at aerodromes +scattered over Europe, flights were so frequent that they were +becoming a commonplace. It was in 1912, as one of its many services to +aviation that the Aero Club of France was able to show, by means of +statistics which could not be questioned, that for every fatality +which had occurred in France, during that particular year, a distance +of nearly 100,000 miles had been flown in safety. + +The cause of many of the early accidents was, as we have suggested, +the breakage of some part of a machine while in flight. In an analysis +for instance of thirty-two such disasters, it was shown that fourteen +were due to the collapse of sustaining planes, control-surfaces, or +some other vital part of a machine. And this risk of breakage in the +air was increased, in many cases, by the building of experimental +machines by men who had no qualifications for their task, and who +erred only too frequently, in their desire to attain lightness, on the +side of a lack, rather than an excess, of structural strength. + +There are many cases, unfortunately, that might be cited; but one may +be sufficient here. A man with an idea for a light type of biplane, a +machine designed mainly for speed, had an experimental craft +built--this was in the pioneer days of 1909--and insisted on fitting +to it a motor of considerable power. It was pointed out to him that +his construction was not sufficiently strong, in view of the speed at +which his machine would pass through the air. But he was of the quiet, +determined, self-opinionated type, who pursued his own way and said +little. He did not strengthen his constructional, and he began a +series of flying tests. In the first of these, which were short, the +planes stood up to their work, and the fears of the critics seemed +groundless. But a day came when, venturing to some height, the aviator +encountered a strong and gusty wind; whereupon one of his main-planes +broke, and he fell to his death. + +As a contrast to this tragedy, and a welcome one, there is a humorous +story, that is true, told of one experimenter. His knowledge of +construction was small, but what he lacked in this respect he made up +for in confidence; and he built a monoplane. This was in the days just +after the cross-Channel flight, and experimenters all over the world +were building monoplanes, some of them machines of the weirdest +description. The craft built by this enthusiast seemed all right in +its appearance; nothing had been spared, for instance, in the way of +varnish. When wheeled into the sun, for its first rolling test under +power, it looked an imposing piece of work. Friends were in attendance, +photographers also; and the would-be aviator was in faultless flying +gear. Mounting a ladder, which had been placed beside the machine, he +allowed his weight to bear upon the fusilage, and proceeded to settle +himself in his seat. But he, and the onlookers, were startled as he +did so by an ominous cracking of wood. It grew louder; something +serious and very unexpected was happening to the machine. As a matter +of fact, and just as it stood there without having moved a yard, the +whole of the flimsy structure parted in the middle, and the machine +settled down ignominiously upon the ground, its back broken, and with +the discomfited inventor struggling in the _debris_. + +It was far from easy, in the early days, for even an expert +constructor to calculate the strains encountered under various +conditions of flight. In wind pressure, under certain states of the +air, there are dangerous fluctuations--fluctuations which, even with +the knowledge we possess to-day, and this is far from meagre, exhibit +phenomena concerning which much more information is required. Machines +have collapsed suddenly, while flying on a day when the wind has been +uncertain, and have done so in a way which has suggested that they had +encountered, suddenly, a gust of an altogether abnormal strength. +Occasionally, though research work in this field is extremely +difficult, it has been possible to gain data as to the existence of +conditions, prevalent as a rule over a small area, which would spell +grave risk for any aeroplane which encountered them. There is a +strange case, verified beyond question, which occurred during some +tests with man-lifting kites at Farnborough. These kites are strongly +built, and withstand as a rule extremely high winds. On this +particular day a kite, when it had reached a certain altitude, was +seen to crumple up suddenly. The wind did not seem specially +strong--not at any rate on the ground; and there appeared no reason +for the breakage of the kite. Another was sent up; but the same thing +happened, and at the same altitude. Then the officer who was in charge +of the kites sent for a superior. A third kite was flown to see what +would happen. This one broke exactly as the others had done, and at +just the same height--about five hundred feet. Precise data could not +be gained as to this phenomenon; but the breaking of these +kites--which had withstood extremely high pressure in previous +tests--was reckoned to be due to the fact that, when they reached a +certain point in the air, they were subjected to the violent strain of +a sudden and complete change in the direction of the wind. To the +pilot of an aeroplane, entering without warning some such area of +danger, the result might naturally be serious in the extreme. + +The air has been, and is still, an uncharted sea. It does not flow +with uniformity over the surface of the earth. It is a constantly +disturbed element, and one that has the disadvantage of being +invisible. An aviator cannot see the dangerous currents and eddies +into which he may be steering his craft; and so it was not surprising, +in those days when aircraft were frailer than they should have been, +and cross-country flights were first being made, that machines broke +often while in flight and that the airman's enemy, the wind, claimed +many victims. + +Wind fluctuations that are dangerous, those which possess for one +reason or another an abnormal strength, are encountered frequently +when a pilot is fairly near the earth; and his peril is all the +greater in consequence. On a windy day, one on which there are heavy +gusts followed by comparative lulls, it is when he is close to the +ground, either in ascending or before alighting, that a pilot has most +to fear. If he is well aloft, with plenty of air space beneath him, +and particularly if he has a machine that is inherently stable, he has +little to fear from the wind; save, perhaps, should his engine fail +him, or should he find--as has been the case in war flying--that the +force of the wind, blowing heavily against him, and reducing the speed +of his machine, has prevented him from regaining his own lines before +his petrol has become exhausted. The modern aeroplane, when its +engine-power is ample, and it is at a suitable altitude, can wage +battle successfully even with a gale. But it must rise from the earth +when it begins a flight, and return to earth again when its journey is +done; and here, in the areas of wind that are disturbed by hills, +woods, and contours of the land, there are often grave dangers. The +wind at these low altitudes blows flukily. Its direction may be +affected, for instance, owing to the influence of a hill or ridge. A +side gust, blowing powerfully and unexpectedly against a machine, just +as it is nearing the ground before alighting, may cause it to tilt to +such an angle that it begins a side-slip. If the craft was +sufficiently high in the air, when this happened, the pilot would be +able, probably, to convert the side-slip into a dive, and the dive +into a renewal of his normal flight. But if such a side-slip begins +near the ground, and there is an insufficient amount of clear space +below the machine, it may strike the ground in its fall, and become a +wreck, before there is time for the pilot, or for the machine itself, +to exercise a righting influence. The fact that a craft may be forced +temporarily from its equilibrium, say by a side-slip, is known now to +represent no great risk for the airman, granted always that he has the +advantage of altitude. The machine, in such circumstances, falls a +certain distance. This is inevitable, and for the reason that it must +regain forward speed--which it has lost temporarily in its +side-slip--before its own inherent stability can become effective, or +its pilot regain influence over his controls. And it is this +unavoidable descent, this short period during which the machine is +recovering its momentum, and during which the pilot has no power of +control, that represents in a heavy wind the moments of peril, should +a pilot enter an area of disturbance just as he nears the ground. + +An aeroplane, when it sets out to fly in bad weather, may be likened +to a boat that is being launched from a beach upon a rough and stormy +sea. It is the waves close inshore, which may raise his craft only to +dash it to destruction, that the boatman has chiefly to fear; and for +the aviator, when he leaves the land and embarks upon the aerial sea, +or when he returns again from this element and must make his contact +with the earth, there lurks a risk that, caught suddenly by an air +wave, and with insufficient space beneath his machine, he may be +forced into a damaging impact with the ground. But the skill of +designers and constructors, to say nothing of the growing experience +of aviators, is working constantly towards a greater safety. + +Of the risk attached to engine failure, when he is piloting a craft +fitted with only one motor, an airman is reminded frequently, not only +from his own experience, but from that of other flyers. With the +aeroplane engine, even with types that have gained a high average of +reliability, there are many possibilities of a slight mishap--each of +them sufficient, for the moment, to put an engine out of action--that +the pilot who is flying across country must, all the time he is in the +air, have at the back of his mind the thought that at any moment, and +perhaps without any warning, he may find that his motive power has +gone. A magneto may fail temporarily; an ignition wire or a valve +spring break. The aeroplane engine of to-day is, of course, an +infinitely more reliable piece of apparatus than it was in those early +days when Henry Farman, working with extraordinary patience at +Issy-les-Moulineaux, was endeavouring--and for a long time without +success--to make the motor in his Voisin biplane run for five +consecutive minutes without breakdown. The war has shown us, and under +working conditions which have been exceptionally trying, how reliable +the aero-motor has become. But until duplicate plants have been +perfected, and more than one motor is fitted to aircraft as a matter +of course, there must always be this risk of failure. + +In the mere stoppage of a motor no great danger is implied. The pilot +must descend; that is all. His power gone, he must glide earthward. +But where the risk does lie, in engine failure, is that it may occur +at a moment when the airman is in such a position, either above +dangerous country or while over the sea, that he cannot during his +glide reach a place of safety. A study of flying will show how awkward, +and how perilous on many occasions, has been the stoppage of a motor +while a machine is in the air. Two historic instances, though they did +not, fortunately, end in a loss of the pilot's life, were the +compulsory descents into the Channel made by the late Mr. Hubert +Latham, during his attempts, in 1909, to fly from Calais to Dover. In +both these cases--once when only a few miles from the French shore, +and on the second occasion when the aeroplane was quite near its +destination--the motor of the Antoinette monoplane failed suddenly, +and the aviator could do nothing but plane down into the water. On the +first occasion he alighted neatly, suffering no injury, and being +rescued by a torpedo boat; but in the second descent, striking the +water hard, he was thrown forward in his seat and his head injured by +a strut. + +Less fortunate, in a case of presumed engine failure that will become +historic, was Mr. Gustave Hamel. Eager to reach Hendon, so as to take +part in the Aerial Derby on May 23rd, 1914, his great experience of +Channel flying induced him to risk the crossing with a motor which, on +his flight from Paris to the coast, had not been running well. His +monoplane was a fast machine, and the flight across Channel would have +taken him less than half an hour. But at some point during the +crossing, it seems obvious, his engine failed him, and he was unable +to prolong his glide either to gain the shore, or the vicinity of a +passing ship. His monoplane was never recovered; but the body of the +aviator--whose loss was mourned throughout the flying world and by the +general public as well--was discovered by some fishermen while +cruising off the French coast, and identified by means of a map, +clothing, and an inflated motor-cycle tyre; the last-named being +carried by the airman round his body to act as an improvised life-belt. + +Engine failure, though a fruitful cause of minor accidents, and of the +breakage of machines, has led to few fatalities; and this has been due +very largely to the fact that, though machines have descended under +dangerous circumstances, and have been wrecked in a manner that would +appear almost certain to kill their occupants, the pilots and +passengers have, as a matter of fact, escaped often with no more than +a shock or bruises. An aeroplane does not strike the ground with the +impact of a hard, unyielding structure. It is essentially frail in its +construction; and this frailness, though it spells destruction for the +machine in a bad descent, provides at the same time an element of +safety for its crew. Take the case for instance of a machine falling +sideways, and striking the ground with one plane or planes. These +planes, built of nothing stronger as a rule than wood, crumple under +the impact. But in their collapse, which is telescopic and to a +certain extent gradual, a large part of the shock is absorbed. By the +time the fusilage which contains the pilot touches ground, the full +force of the impact is gone. And it is the same, often, if a machine +makes a bad landing, say on awkward ground, and strikes heavily +bow-first. Granted that the occupants of the machine are well-placed, +and prevented by retaining belts from being flung from the machine, +they should escape injury from the fact that there is so much to be +broken, in the way of landing-gear and other parts, before the shock +of the impact can reach them in their seats. + +Had it not been for the capacity of the aeroplane to alight in awkward +places without injury to its pilot, many lives might have been lost +through descents in which motors have failed. Aviators have been +obliged to land in most unsuitable places: on the roofs of houses, for +instance, in small gardens, and frequently on the tops of trees. If he +finds his engine fail him when he is over a wood or forest, and there +is no chance save to descend upon the trees, a skilled pilot may save +himself as a rule from injury. Planing down, till he is just above the +tree-tops, he will then check suddenly, by a movement of his elevator, +the forward speed of his machine. The craft will come to a standstill +in the air; then, the support gone from its planes owing to the loss +of forward speed, it will sink down almost vertically, and with very +little violence, on to the tops of the trees. The machine itself will +naturally be damaged, seeing that boughs will pierce its wings in many +places, and that one or more of its planes may possibly collapse. But +the net result of such a landing--and this is the point which is +important for the pilot--is that the machine will be caught up and +suspended on the trees, making a comparatively light and gradual +contact, instead of there being any risk of its driving through the +trees and making a heavy impact with the ground. + +Humour, sometimes, may be extracted from such a predicament as engine +failure, though it needs an aviator with a very deeply ingrained sense +of humour to do so. The story is told, however, of a pilot who, flying +across difficult country with a passenger, found that his motor +failed--as they often will--just at a moment when there seemed no +possible landing-point below. Looking over the side of his machine, +and glancing quickly here and there, the aviator saw no alternative +but to bring his craft down in an orchard that lay below. Pointing +downward, to acquaint his passenger with their unpleasant situation, +and to call his attention also to the orchard, the pilot said with a +smile: + + "I hope you're fond of apples!" + +There is a risk in engine failure which has been emphasised more than +once; and it is that which may attend the pilot who, while prolonging +a glide in order to reach some landing-point, may be struck by a gust, +or enter some area of disturbed wind, just before he reaches the +ground and while his machine, moving slowly, is not in a position to +respond effectually to its controls. In one case an aviator, +struggling back towards the aerodrome with a motor which was not +giving its power, found that it stopped suddenly when he was not far +from a wood. Beyond the wood, which stood on a ridge, there was a +stretch of grassland. Endeavouring to reach this promised +landing-point, and holding his machine on a long glide, the airman +came across above the trees. He had almost reached his goal when his +machine entered a sudden down-current of wind--occasioned, no doubt, +by the proximity of the trees and ridge. Caught by this eddy, with no +motive power to help him and very little speed on his machine, the +pilot could not check its sudden dive; and the craft struck ground so +heavily that both he and his passenger were killed. + +We have mentioned previously, as a fruitful cause of accident, that +structural weakness of machines which has led, when conditions have +been unfavourable, to a sudden collapse in the air. But apart from +weakness in construction, and notably in accidents with early-type +machines, there was the risk attached to mistakes in design, which +produced machines which were unstable under certain conditions--and +the dangers also which were due to inefficient controlling surfaces. +It was no uncommon thing, in pioneer days, for a machine to be built +which would not respond adequately to its elevator or rudder; though +this unpleasant fact might not be discovered by the pilot until he was +actually in flight, and perhaps at some distance from the earth. In +one case, which is authenticated, a two-seated monoplane of a new type +was tested at first in a series of straight flights, and found to be +promising in its behaviour. A skilled pilot then took charge of it, +and, carrying a passenger, proceeded to some more ambitious flights. +Steering the machine away across the aerodrome, and flying at a low +elevation, he approached a belt of woods. The machine was too near the +ground to pass over the tops of the trees; so the aviator decided to +make a turn, and fly parallel with the wood. But when he put his +rudder over, so as to bring the machine round in a half-circle, he +found to his dismay that there was no response. In the design of the +machine, as it was found afterwards, the rudder had been made too +small: it would not steer the machine at all. In the little space that +was left him, and to avoid crashing into the trees, the pilot had to +bring his craft to earth in such an abrupt dive that it was wrecked +completely. He and the passenger, though, escaped unhurt. + +Carelessness has, fairly frequently, played its part in aeroplane +disasters. Sometimes a pilot has been careless, or perhaps in a hurry, +and has failed to locate some defect which, had it been seen and +attended to, would have saved a disaster when a machine was in flight. +Such inattention, which is sufficiently dangerous in the handling of +any piece of mechanism, is deadly in its peril when those who are +guilty of it navigate the air. A man who brings out a machine time +after time, and ascends without examining it carefully, is adding +vastly to the risks that may attend his flight; and the same remark +will apply to the carelessness of mechanics; though as a class, in +view of the arduous nature of their work, and of the long hours they +have frequently to be on duty, with no more than hasty intervals for +rest, their average of care and accuracy is very high. But there have +been cases--mostly in the past though--in which a machine has +developed a structural defect, or some defect say in its control gear, +which ought to have been observed by its mechanics, but which has not +been so detected, and has led to a catastrophe in flight. With +machines built lightly, and subjected to heavy strains when at high +speeds, it is vital that the inspection of such craft, that the +examination of every detail of them, should be carried out in a spirit +of the greatest care. The fraying through of a control wire, unnoticed +by those in charge of a machine, has been sufficient to cause a +disaster; while carelessness in overhauling a motor, a task of supreme +importance, seeing that its engine is the heart of an aeroplane, has +been another cause of accident. It is vital that, when an airman +ascends, both his machine and his motor should be in perfect working +trim. He himself, before he flies, and after his aeroplane has been +wheeled from its shed, should make it a habit to look over the machine, +so as to impose his own personal check upon the work his mechanics +have done. + +Even when every care has been taken, and a machine ascends in perfect +trim, there is the human factor, represented by the pilot, which must +be considered always in a study of aeroplane accidents. There is often, +when a catastrophe seems imminent, a choice of things that may be +done. If an engine fails, for instance, under awkward circumstances, +the pilot may have, say, three courses open to him in regard to his +descent. Two may spell disaster and the third safety. It is here that +the innate judgment of a pilot, combined with his experience, will +tell its tale. But this personal element in flying, and particularly +in regard to an accident, is often a very difficult one for which to +make allowances. + +The whole problem of aeroplane disasters is, to the analyst, one of +unusual complexity. Take for example the case of a pilot who is flying +alone in his machine, and at an altitude of several thousand feet. +Suddenly something happens; the machine is seen to fall and the pilot +is killed. Experts come to examine the aircraft, but it is wrecked so +completely that little which is reliable can be gathered from any +inspection; while the man who could explain what has happened--the +pilot of the machine--is dead. The statements of eyewitnesses, when +taken on such occasions, are often misleading. One person heard a +crash, and saw something fall away from the machine. Another declares +the engine stopped suddenly and that the machine "fell like a stone." +Another says he is sure he saw one of the wings fold upwards and the +machine swing and fall. And so on. It is extremely difficult, even for +a technical eye-witness, to be sure of what he sees when things happen +quickly and at a distance from him; while the statements of +non-technical people, who are not trained in observation, are +generally so unreliable as to be useless. + +It has happened often therefore, far too often, in aeroplane +fatalities that have happened from time to time, that the cause of +such accidents has, even after the most careful investigation, had to +be written down a mystery. But in more than a few cases, though the +evidence has been far from conclusive, it has been considered that a +pilot has been guilty of some error of judgment. There were puzzling +instances, notably in the early days of flying, when airmen began +first to make cross-country flights, of engines being heard to fail +suddenly, and machines seen to fall to destruction. That engines +should break down was not surprising; they were doing so constantly; +but there was no reason why, even if they did fail, a machine should +fall helplessly instead of gliding. But what was thought to have +happened, in more than one of these cases, was that the pilot, through +an error of judgment, had failed to get down the bow of his machine +when his motor gave signs of stopping. The craft concerned were, it +should be mentioned, "pusher" biplanes; and the same rule applied to +them, in cases of engine failure, as has been explained in a previous +chapter, and as is emphasised nowadays in the instruction of the +novice. But in those days the beginner had frequently to learn, not +from wise tuition, but from bitter experience; and he was lucky, often, +if he learned his lesson and still retained his life. On certain +early-type biplanes, for instance, machines with large tail-planes, +and engined as a rule by a motor which was giving less than its proper +amount of power, it was most dangerous for a pilot if, on observing +any signs of failing in his engine, he sought to fly on in the hope +that the motor would "pick up" again, and continue its work. Directly +there was a tendency of the motor to miss-fire, or lessen in the +number of its revolutions per minute, the consequent reduction of the +propeller draught, as it acted on the tail of the machine, would cause +this tail to droop, and the machine to assume very quickly a dangerous +position. And when once it began to get tail-down, as pilots found to +their cost, there was nothing to be done. The machine lost what little +forward speed it had, and either fell tail-first, or slipped down +sideways. Such risks as these, which were very real, were rendered +worse owing to the fact that, in much of the cross country flying of +the early days, pilots flew too low. They lacked the confidence of +those who followed them, and were too prone to hug the earth, instead +of attaining altitude. It was not realised clearly then, as it is now, +that in height lies safety. And so when a machine lost headway through +engine failure, and was not put quickly enough into a glide, it +happened often that it had come in contact with the earth, and had +been wrecked, before there was any chance for the pilot to regain +control, or for the machine itself to exhaust its side-slip, and come +back to anything like a normal position. + +But the failure of the human factor in flying, the lack of skill of a +pilot that may lead to disaster, is shown by statistics to play no +more than a small part, when accidents are studied in numbers and in +detail. Some time before the war, in an analysis of the accidents that +had befallen aviators in France--accidents concerning which there was +adequate data--it was shown that only 15 per cent. of them could be +attributed to a failure in judgment or skill on the part of the pilot. + +Apart from errors, however, in what may be called legitimate piloting, +there have been regrettable accidents due to trick or fancy flying. +Putting a machine through a series of evolutions, to interest and +amuse spectators, is not of course in itself to be condemned. In such +flying, and notably for instance in "looping the loop," facts were +learnt concerning the navigation of the air, and as to the apparently +hopeless positions from which an aeroplane would extricate itself, +which were of very high value, from both a scientific and practical +standpoint. Public interest in aviation was increased also by such +displays; and it is very necessary that there should be public +interest in flying, seeing that it is the public which is asked to pay +for the development of our air-fleets. But the man who undertakes +exhibition flying needs not only to be a highly-skilled pilot, but a +man also of an exceptional temperament--a man whose familiarity with +the air never leads him into a contempt for its hidden dangers; a man +who will not, even though he is called on to repeat a feat time after +time, abate in any way the precautions which may be necessary for his +safety. In looping the loop, for instance, or in upside-down flying, +it is necessary always that the aeroplane should be at a certain +minimum height above the ground. Then, should anything unexpected +happen, and the pilot lose command temporarily over his machine, he +knows he has a certain distance which he may fall, before striking the +ground; and during this fall the natural stability of his machine, +aided by his own operation of the guiding surfaces, may bring it back +again within control. But if he has been tempted to fly too near the +ground, and has ignored for the moment this vital precaution, and if +something happens for which he is not prepared, then the impact may +come before he can do anything to save himself. + +In the early days of flying, when aviators attempted an acrobatic feat, +they ran a far heavier risk than would be the case to-day; and for +the simple reason that their machines, not having a strength +sufficient to withstand any abnormal stresses, were likely to collapse +in the air if they were made to dive too rapidly, or placed suddenly +at any angle which threw a heavy strain on their planes. A machine for +exhibition flying needs to be constructed specially; but this was not +realised till accidents had taught their lesson. + +It is a regrettable fact, one which emerges directly from a study of +aeroplane accidents, that many of them might have been avoided had men +been content to follow warily in the footsteps of the pioneers, and +not run heavy risks till they themselves, and the machines they +controlled, had been prepared, by a long period of steady flying, to +meet such greater dangers. The first men who flew realised fully the +risks they ran. But when flying became more general, and men found +machines ready to their hands, machines which it was a simple matter +to learn to fly, this early spirit of caution was forsaken, and feats +were attempted which brought fatalities in their train, and which +seemed to emphasise the risks of aviation, and did it the very bad +service that they fixed in the public mind a notion of its dangers, +and prevented men from coming forward to take up flying as a sport. + + + + +CHAPTER VIII + +FACTORS THAT MAKE FOR SAFETY + + +It has been calculated that nearly half the aeroplane disasters of the +early days were due to a structural weakness in machines, or to +mistakes either in their design, or in such details as the position, +shape, and size of their surfaces. To-day, thanks to science, and to +the growing skill and experience of aeroplane designers and +constructors, this risk of the collapse of a machine in the air, or of +its failure to respond to its controls at some critical moment through +an error in design, has been to a large extent eliminated. That such +risks should be eliminated wholly is, as yet, too much to expect. + +One of the factors making for safety has been the steady growth in the +general efficiency of aircraft: in the curve of their wings which, as +a result largely of scientific research, has been made to yield a +greater lift for a given surface and to offer a minimum of resistance +to their passage through the air; in the power and reliability of +their engines; in the efficiency of their propellers; and in the +shaping of the fusilage of a machine, and in the placing and +"stream-lining" of such parts as meet the air, so as to reduce the +head resistance which is encountered at high speeds. Such gains in +efficiency, which give constructors more latitude in the placing of +weight and strength where experience show they are needed, have gone +far to produce an airworthy machine. In the old days, when machines +were inefficient, a few revolutions more or less per minute in the +running of an engine meant all the difference between an ascent and +merely passing along the ground. But nowadays, through the all-round +increase in efficiency that has been obtained, a machine will still +fly upon its course without losing altitude, and respond to its +controls, even should the number of revolutions per minute of its +engine be reduced considerably. + +When given a greater efficiency in lifting surfaces and +power-plants--and profiting also from the lessons that had been learnt +in the piloting of machines--constructors were able to devote their +attention, and to do so with certainty instead of in a haphazard way, +to the provision of factors of safety when a craft was in flight. With +a machine of any given type, if driven through the air at a certain +speed, it is possible to estimate with accuracy what the normal +strains will be to which it is subjected. But even if such data are +obtained, and the machine given the strength indicated, this factor of +safety is insufficient. It is not so much the normal strains, as those +which are abnormal, that must be guarded against in flight. A +high-speed machine, if piloted on a day when the air is turbulent, may +be subjected to extraordinarily heavy strains; rising many feet in the +air one moment, falling again the next, and being met suddenly by +vicious gusts of wind--in much the same way that a fast-moving ship, +when fighting its way through a rough sea, is beaten and buffeted by +the waves. Air waves have not of course the weight, when they deliver +a blow, that lies behind a mass of water; but that these wind-waves +attain sometimes an abnormal speed, and have a tremendous power of +destruction, is shown in the havoc that is caused by hurricanes. + +It seems astonishing to many people that such a frail machine as the +aeroplane, with its outspread wings containing nothing stronger often +than wooden spars and ribs, covered by a cotton fabric, should be +capable of being driven through the air at such a speed, say, as 100 +miles an hour, encountering not only the pressure of the air, but +resisting also the fluctuations to which it may be subjected. But, +underlying the lightness and apparent frailty of such a wing, when one +sees it in the workshop in its skeleton form, before it has been +clothed in fabric, there is a skill in construction, and an experience +in the choice, selection, and working of woods, that produces a +structure which, for all its fragile appearance, is amazingly strong. +And the same applies, nowadays, to all the other parts of an +aeroplane. That it should have taken years to gain such strength, and +to reduce so largely the risk of breakage, is not in itself +surprising. Men had to devise new methods in construction--always with +the knowledge that weight must be saved--and to create new factors of +safety, before they could build an airworthy craft. + +To-day, when a man flies, he need have no lurking fear, as had the +pioneers, that his craft may break in the air. Even when it is driven +through a gale, plunging in the rushes of the wind, yet held straining +to its task by the power of its motor, the modern aeroplane can be +relied upon; and not in one detail of its construction, but in every +part. Experience, the researches of science, and the growing skill +with which aircraft are built, stand between the airman and many of +his previous dangers. The aeroplane to-day, one of the structural +triumphs of the world in its lightness and its strength, has a factor +of safety which is sufficient to meet, and to withstand, not merely +ordinary strains, but any such abnormal stresses as it may +encounter--and which may be many times greater than the strains of +normal flight. + +The aviator knows also that his engine, as it gives him power to +combat successfully his treacherous enemy, the wind, represents the +fruit of many tests and of many failures, and of the spending of +hundreds of thousands of pounds. Many of its defects have revealed +themselves, and been rectified; it is no longer light where it should +have weight of metal, nor weak where it should be strong. So far as +any piece of mechanism can be made reliable, consisting as it does of +a large number of delicate parts, operating at high speed, the +aeroplane motor has been made reliable. But, so long as one motor is +used, there must always, as we have said, remain a risk of breakdown. +It is for this reason that, thanks largely to the stimulus of the +war--which has created a practical demand for such machines--aeroplanes +are now being built, and flown with success, which are fitted with +duplicate motors. With such machines, which give us a first insight as +to the aircraft of the future, engine failure begins to lose its +perils--particularly in regard to war. More than once during the great +campaign, when flying a single-engine machine, an aviator has found +his motor fail him, and has been obliged to land on hostile soil; with +the result that he has been made prisoner. But with dual-engine +machines it has been found that, when one motor has failed +mechanically, or has been put out of action by shrapnel, the remaining +unit has been sufficient--though the machine has flown naturally at a +reduced rate--to enable the pilot to regain his own lines. + +In peace flying, too, as well as in war, the multiple-engined +aeroplane brings a new factor of safety. If one of his motors fails, +and he is over country which offers no suitable landing-place, the +pilot with a duplicate power-plant need not be concerned. His +remaining unit or units will carry him on. There are problems with +duplicate engines which remain to be solved--problems of a technical +nature--which involve general efficiency, transmission gear, and the +number and the placing of propellers; but already, though this new +stride in aviation is in its earliest infancy, results that are most +promising have been obtained. + +To those who study aviation, and have done so constantly, say from the +year 1909, one of the most striking signs of progress lies in the fact +that, though unable at first to fly even in the lightest winds, the +aviator of to-day will fight successfully against a 60 miles-an-hour +wind, and will do battle if need be, once he is well aloft, with a +gale which has a velocity of 90 miles an hour. He will ascend indeed, +and fly, in any wind that permits him to take his machine from the +ground into the air, or which the motor of his craft will allow it to +make headway against. And here, though machines are still experimental, +there is removed at one stroke the earliest and the most positive +objection of those who criticised a man's power to fly. When the first +aeroplanes flew the sceptics said: "You have still to conquer the wind, +and that you will never do. Aeroplanes will be built to fly only in +favourable weather, and this will limit their use so greatly that they +will have no significance." But to-day the aviator has ceased, one +might almost say, to be checked or hampered by the wind. If the need +is urgent, as it often is in war, then it will be nothing less than a +gale that will keep a pilot to the ground, provided he has a +sufficiently powerful machine, and a suitable ground from which to +rise--and granted also that he has no long distance to fly. +Wind-flying resolves itself into a question of having ample +engine-power, of being able to launch a machine without accident, and +get it to earth again without mishap; and of being able to make a +reasonable headway against the wind when once aloft; and these +difficulties should solve themselves, as larger and heavier machines +are built. + +Apart from the growing skill of the aviator, which has been bought +dearly, science can now give him a machine, when he is in a wind, that +needs no exhausting effort to hold it in flight. Craft are built, as a +matter of certainty and routine, which have an automatic stability. +Science has made it possible indeed, by a mere shaping and placing of +surfaces, and without the aid of mechanical devices, to give an +aeroplane such a natural and inherent stability that, when it is +assailed by wind gusts in flight, it will exercise itself an adequate +correcting influence. To understand what this means it should be +realised that, when such a machine is in flight say in war on a +strategical reconnaissance, and carries pilot and passenger, the +former can take it to a suitable altitude and then set and lock his +controls, and afterwards devote his time, in common with that of his +passenger, to the making of observations or the writing of notes. The +machine meanwhile flies itself, adapting itself automatically to all +the differences of wind pressure which, if it had not this natural +stability, would need a constant action of the pilot to overcome. All +he need do is to maintain it on its course by an occasional movement +of the rudder. With such a machine, even on a day when there is a +rough and gusty wind, it is possible for an airman to fly for hours +without fatigue; whereas with a machine which is not automatically +stable, and needs a ceaseless operation of its controls, the physical +exhaustion of a pilot, after hours of flight, is very severe. + +So, already, one sees these factors of safety emerge and take their +place. There is no longer a grave peril of machines breaking in the +air; there need be no longer, with duplicate power-plants, the +constant risk of engine failing; while that implacable and treacherous +foe, the wind, is being robbed daily of its perils. + + + + +CHAPTER IX + +A STUDY OF THE METHODS OF GREAT PILOTS + + +The masters of flying, and this is a fact the novice should ponder +well, have been conspicuous almost invariably for their prudence. No +matter how great has been their personal skill, they have never lost +their respect for the air; and this is why so many of the great flyers, +after running the heaviest of risks in their pioneer work, have +managed to escape with their lives. What patience and sound judgment +can accomplish, when pitted even against such dangers as must be faced +by an experimenter when he seeks to fly, is shown by an incident from +the early career of the Wright brothers. With one of their gliders, a +necessarily frail machine, and in tests made when they were both +complete novices, they managed to make nearly 1000 glides; and not +once in all those flights, during which they were learning the +rudiments of balance and control, did they have a mishap which damaged +at all seriously their machine. + +These two brothers, Wilbur and Orville, offer to the student of flying, +apart from the historical interest which is attached to their work, a +temperamental study of the greatest interest. Wilbur, who was grave, +judicial--a man of infinite patience and with an exceptional power of +lucid thinking--found in his brother and co-worker, Orville, a +disposition just such as was necessary to strengthen and support him +in his great research; a disposition more vivacious and more +enthusiastic than his, and one which acted as a balance to his own +gravity. The method of these brothers in first attacking a mass of +data, most of it contradictory--and a large amount of it of little +intrinsic value--and then framing their own research on lines which +they discussed and studied with methodical care, forms a model of +sound judgment for workers in any complex field. Their kite +experiments, their gliders, their refusal to hasten their steps unduly +in the fitting of an engine to their machine, reveal again their +discretion, and that judgment which never failed them. Perseveringly +and unswervingly, exhibiting doggedness without obstinacy, and with +their work illuminated always by the highest intelligence, they moved +surely from stage to stage; and at last, when they fitted a motor to +their machine, such was their knowledge of the air, and of the control +of their craft when in flight, that they were able to make this +crucial step, from a glider to a machine driven by power, without any +breakage of their apparatus or injury to themselves. + +The same self-control marked them when, having demonstrated that men +can ascend in a power-driven machine, and steer such a craft at will, +they dismantled their apparatus and commenced their negotiations with +foreign Governments. Wilbur Wright, too, when he came to France to +give his first public demonstrations, provided by his methods a model +for aviators, either present or future. He resisted all temptations to +make injudicious flights. If he considered the weather conditions at +all unsuitable he said that he would not ascend, no matter who might +have come to see him fly, and that settled the question once and for +all. He was deaf to all pleadings, to all proffered advice. When +conditions were perfectly suitable, and then only, would he have his +craft brought from its shed. + +The same meticulous care, in every flight he made, marked his +preparation of his machine. Motor, controls, propeller-gearing, every +vital part, received its due attention; and this attention was never +relaxed, no matter how frequently he flew, nor how great was his +success. An observer of one of his early flights at Le Mans has given +us an impression that is typical of this unremitting care. There was a +question of some small adjustment that Wilbur had instructed should be +made to the machine. When the time came to fly, and he was in the +driving-seat waiting for the motor to be started, he called a question +as to whether this detail had been attended to. He was assured it had. +But this was not enough for Wilbur Wright. Climbing from his seat and +walking round the biplane, he made a careful examination for himself, +and then returned quietly to the front of the machine. People who came +to see him fly, and expected some picturesque hero, leaping lightly +into his machine and sweeping through the air, found that reality +disappointed them. This quiet, unassuming man, who slept in his shed +near his aeroplane, and took his meals there also, refused to be feted +or made a fuss of; while his deliberation in regard to every flight, +and his indifference to the wishes or convenience of those who were +watching him, drove nearly frantic some of those influential people +who, coming in motor-cars and with a patronising spirit, thought the +aviator might be treated rather as a superior mountebank, who would be +only too glad to come out and fly when a distinguished guest arrived. + +M. Louis Bleriot, whose name was next to become world-famous, after +that of the Wrights, and who owed his distinction to his crossing of +the English Channel by air, revealed in his character determination +and courage, and imagination as well. And yet allied to these +qualities--and here lay his temperamental strength--he had a spirit of +quiet calculation and an eery considerable shrewdness. He knew, and was +not afraid of showing that he knew, the full value of caution. And yet +on occasion also--as in the cross-Channel flight--he was ready to put +everything to the test, and to take promptly and with full knowledge +the heaviest of risks. The motor in his cross-Channel monoplane was an +experimental one of low power, air-cooled, and prone to over-heat and +lose power after only a short period of running. To cross the Channel, +even under the most favourable circumstances, he knew this engine must +run without breakdown for thirty-five or forty minutes. This it had +not done--at any rate in the air--before. There was a strong +probability--and Bleriot knew this better than anyone else--that the +motor would fail before he reached the English shore, and that he +would have to glide down into the sea. It was arranged that a +torpedo-boat-destroyer should follow him, and this afforded an element +of safety. But Bleriot guessed--as was actually the case--that he +would outdistance this vessel in his flight, and soon be lost to the +view of those upon it. And he did not deceive himself as to what might +happen, if his engine stopped and he fell into the water. His +monoplane, as it lay on the surface of the water, would, he knew, +prove a very difficult object to locate by any vessel searching for it; +while it was so frail that it would not withstand for long the +buffeting of the waves. He carried an air-bag fixed inside the +fusilage, it is true; but, in spite of this precaution, Bleriot knew +he ran a very grave peril of being drowned. There was, on the morning +of his flight, another disturbing factor to be reckoned with. The wind, +calm enough when he first determined to start, began very quickly to +rise; and by the time he had motored from Calais to the spot where his +aeroplane lay, and the machine itself was ready for flight, the wind +out to sea was so strong that the waves had become white-capped. But +Bleriot, aware of the value at such moments of decision, had made up +his mind. He knew that, if his engine only served him, his flight +would be quickly made. And so he reckoned that, even though the wind +was rising, he would be able to complete his journey before it had +become high enough seriously to inconvenience him; and in this +calculation, as events proved, he was right. His motor did its work; +and, though the wind tossed his machine dangerously when he came near +the cliffs of the English coast, he succeeded in making a landing and +in winning the L1000 prize. + +M. Hubert Latham, Bleriot's competitor in the cross-Channel flight, +had that peculiar outlook on life, with its blend of positive and +negative--puzzling often to its owner as well as to the onlooker--that +is called, for the sake of calling it something, the artistic +temperament. He was impulsive, yet impassive often to a disconcerting +extent: extremely sensitive and reserved as a rule, yet on occasion +almost boyishly frank and communicative. He lacked entirely ordinary +shrewdness, or everyday commonsense. He was a man of a deeply romantic +temperament, and this inclined him towards aviation and the conquest +of the air; while in actual piloting he had such a quickness and +delicacy of touch, and such a sure and instinctive judgment of +distance and of speed, that he was undoubtedly a born aviator--one of, +if not the, finest the world has seen. That he did not attain greater +success, from a practical point of view, was due to the fact that he +was without the level-headedness and the business ability which +characterised others of the pioneers. When he was in flight in his +Antoinette--Latham flew that machine and no other--he was a supreme +artist. His machine was beautiful, and his handling of it was +beautiful. + +M. Henri Farman, beyond question, of course, another of the great +pioneers, is a man of imagination and of a highly nervous temperament, +yet possessing at the same time a very pronounced vein of caution. No +success has for an instant caused him to lose his head. At Rheims, in +1909, when he had created a world's record by flying for more than +three hours without alighting, those who hastened to congratulate him, +after his descent, found him absolutely normal and unmoved. Washing +his hands at a little basin in the corner of the shed, he discussed +very quietly and yet interestedly, and entirely without any +affectation of nonchalance, the details of his flight and the +behaviour of his motor. His attitude was that the flight was something, +yet not a great deal, and that very much more remained to be done; a +perfectly right and proper attitude, one which was just as it should +be, yet one encountered very rarely under such circumstances--human +nature being what it is. + +Farman's patience, his perseverance, were in the very early days what +gave him his first success. With the biplane the Voisins built him, +for example, nothing but his own determination, and his ceaseless work +upon his engine, enabled him to do more with this type of machine than +others had done. + +As the aeroplane increased in efficiency, and in the reliability of +its engine, and was used in cross-country journeys, there came an era +of flying contests, in which large prizes were offered, and in which +airmen passed between cities and across frontiers, and traversed in +their voyages the greater part of Europe. In the making of these +flights, which needed an exceptional determination and skill, allied +also to a perfect bodily fitness, there came into prominence certain +aviators whose precision in their daily flights, passing across +country with the speed and regularity of express trains, won +admiration throughout the world. Prominent among these champions was +the French naval officer, Lieut. J. Conneau, who adopted in his +contests the flying name of "Beaumont." His success and his exactitude, +when piloting a Bleriot monoplane for long distances above unknown +country, guiding himself by map and compass, gave the public an +indication, for the first time, of what might be accomplished by an +expert airman when flying a reliable machine. Lieut. Conneau's success, +winning as he did several of the great contests one after another, +and the absence of error in his flying from stage to stage, and his +accurate landings upon strange and often badly-surfaced aerodromes, +should provide for the novice in aviation--when the secret of this +success is understood--an object-lesson that is of value. + +This quiet, efficient airman, and his methods in making himself so +competent, afford indeed an interesting study. Here was one who, +suited already by temperament for the tasks he undertook, trained +himself with such care, with such patience, that he attained as nearly +to the ideal as is possible for living man. When he had asked for, and +obtained, permission from the Minister of Marine to study aviation in +all its aspects, he began his task in a spirit that was admirable. "I +was convinced," he wrote afterwards, "that a perfect knowledge of +machines and motors was necessary before one could use them." For +nearly a year, on leaving the sea, he worked to obtain a certificate +as a practical engineer. This gained, he went through a period of +motor-cycling and motor-car driving, varied by flights in captive +balloons and free balloons, and afterwards in airships. Following this +he obtained leave to stay for a time at Argenteuil, and enter the +works of the builders of the Gnome motor. Here he lived the life of a +mechanic, and learned to understand completely the operation of this +famous engine, which he was destined to drive afterwards in his great +flights. + +Presently he went to Pau, in order to obtain his certificate as an +aeroplane pilot. At first, taking his turn with a number of other +pupils, he could only get a few minutes at a time in a machine. But +being a keen observer he found that, by listening to the instructors, +and watching the flights made, he could pick up useful information +without being in the air; and this led him to the observation that "to +learn to fly quickly, one must begin by staying on the ground." + +He secured in due course his certificate of proficiency, astonishing +the instructors by his skill and sureness in the handling of his +machine. Then followed what might be called an apprenticeship to +cross-country flying. He made constant flights in all weathers, flying +for instance from Pau to Paris, and studying closely not only the +piloting of his machine and the aerial conditions he encountered, but +also the art of using a map and compass, and in finding a path without +deviation from point to point. Improving daily in confidence and skill, +and learning practically all there was to be learned as to the +handling of a Gnome-engined Bleriot, he was able soon to fly under +weather conditions which would have seemed hopeless to a pilot of less +experience; while engine failure and other troubles, which overtook +him frequently on these long flights, taught him to alight without +damaging his machine on the most unpromising ground. + +Now, feeling himself at last competent, he obtained permission to +figure on the retired list, so that he might take part in the aviation +races which were then being organised. Of these great contests Lieut. +Conneau won three in succession--the Paris-Rome Race, in which he flew +928 miles in 21 hours 10 minutes; the European Circuit, in which he +flew 1,060 miles in a total flying time of 24 hours 18 minutes; and +the Circuit of Britain, in which he flew 1,006 miles in 22 hours 26 +minutes. Lieut. Conneau's success, which appeared extraordinary, and +his skill in finding his way across country, which seemed abnormal, +were due as a matter of fact to his assiduous preparation, and to a +temperament which, even under the heavy strains of constant flying, +saved him from errors of judgment or ill-advised decisions. His +temperament was, indeed, ideal for a racing airman. He was quiet and +collected, with a natural tendency to resist excitement or confusion. +His physique was admirable, and he had that elasticity of strength, +both in body and nerve, which are invaluable to a pilot when on long +flights. Also, and this was of importance, Lieut. Conneau had a +natural cheerfulness of disposition which carried him without +irritation or despondency through those ordeals of weather, and of +mechanical breakdowns and delays, which are inseparable from such +contests as those in which he was engaged. + +A contrast to Lieut. Conneau, both in temperament and method, was his +rival Jules Vedrines--the aviator who, notably in the Circuit of +Britain, flew doggedly against Lieut. Conneau from stage to stage. +Vedrines, who had not had the advantages in tuition that had been +enjoyed by Lieut. Conneau, nor his grounding in technique, was +nevertheless a born aviator; a man of a natural and exceptional skill. +In energy, courage, and determination he was unexcelled; but such +qualities, though of extreme value in a long and trying contest, were +marred by an impetuosity and an excitability which Vedrines could not +master, and which more than once cost him dear. He had not, besides, +as was shown in the Circuit of Britain, that skill in steering by map +and compass which aided Lieut. Conneau so greatly in all his flying. + +A personality of unusual interest was that of the late Mr. S. F. +Cody--a man of a great though untutored imagination, and of an +extraordinary and ceaseless energy. A big man, and one whom it might +be thought would have been clumsy in the handling of an aeroplane, he +piloted the biplanes of his own construction with a remarkable skill. +He flew no other, of course, and this was greatly to his advantage in +actual manipulation. The great pilots who have excelled--one may +instance again Lieut. Conneau--have concentrated their attention as a +rule on one type of machine, learning all there is to be learned about +this particular craft, and being prepared in consequence, through +their knowledge both of its capacities and weaknesses, for any +contingency that may arise in flight. Another instance of such +specialisation was provided by Mr. Gustave Hamel. M. Bleriot--an +admirable judge in this respect--singled out Mr. Hamel, while this +young man was learning to fly in France, as an aviator of quite +unusual promise; and his prediction was, of course, more than +fulfilled. Devoting himself exclusively to the monoplane, Mr. Hamel +became a pilot whose perfection of control, very wonderful to witness, +was marked strongly by his own individuality. He had beautiful +"hands"--a precision and delicacy on the controls which marked his +flying from that of all others; while his judgment of speed and +distance, which was remarkable, represented natural abilities which +had been improved and strengthened by his constant flying. + + + + +CHAPTER X + +CROSS-COUNTRY FLYING + + +When a pupil has finished his flying school tests, and has received +his certificate from the Royal Aero Club, he is in a stage of +proficiency which means that he has learned to control an aeroplane +when above an aerodrome and in conditions that are favourable, and +that he may be relied on to make no elementary mistakes. But as to +cross-country flying, with its greater hazards, he is still a novice, +with everything to learn. And so it is to flights from point to point, +generally between neighbouring aerodromes, that he next devotes +himself. + +Aviators have been commiserated with, often, on what is thought to be +the monotony of a cross-country flight. The pilot, raised to a lonely +height above the earth, is pictured sitting more or less inertly in +his seat, with nothing to do but retain his control on the levers, and +look out occasionally so as to keep upon his course. But the beginner, +when he first attempts cross-country flying, will have an impression +not of inactivity, but of the necessity to be constantly on the alert. +He will be engrossed completely by the manipulation of his machine, +with no time to sit in idle speculation, or to analyse his feelings as +the country passes away below. + +When preliminaries on the ground have been gone through, and the pilot +is in the air, there will first be a need to gain a height of several +thousand feet. Altitude is essential in cross-country flying. The +higher a pilot flies, within reason and having regard to the state of +the atmosphere, the better chance will he have of making a safe +landing, should his motor fail suddenly and force him to descend. So +the first concern is climbing--and in doing so the pilot must remember +the teachings of his instructor, and not force his craft on too steep +or rapid an ascent. He may prefer, in his early flights, to remain +above the aerodrome while he is gaining altitude, watching his height +recorder from moment to moment so as to note his progress upward. He +will be occupied also with his engine, listening to its rhythm of +sound, and keeping an eye on the indicator that tells him how many +revolutions per minute the motor is actually making, and which will +warn him at once should it begin to fail. + +Granted his motor is running well, a pilot should soon gain altitude. +Then, assuming the air is clear--as it should be on his early +flights--he will note some landmark, away on the line of his flight, +and set off across country towards it. Fixed conveniently in front of +him will be a map, of a kind devised specially for the use of +aviators. A pilot's view, as he flies high above the ground, is +bird-like. Landmarks fail to attract his attention, at this altitude, +which would be clearly seen if he were on the ground. Hills, for +example, unless they are high, are so dwarfed as he looks down on them +that they scarcely catch his eye. What is done, by the designer of air +maps, is to accentuate such details of a landscape as will prove +conspicuous when seen from above. A river, or an expanse of water, is +clearly seen; so also are railways and main roads; while factory +chimneys, and large buildings which stand alone, may be identified +from a distance when a pilot is in flight. So on an airman's map, made +to stand out by various colourings in a way that catches the eye, are +railways, roads, rivers, lakes and woods, with here and there a +factory chimney or a church, should these be in a position rendering +them visible easily from the air. That such maps should be bold in +their design, and free from a mass of small details, is very necessary +when it is remembered that the aviator, passing through the air at +high speeds, has no time for a leisurely inspection of his map. + +With a good map, and aided when necessary by the compass that is +placed in a position so that he can see it readily, a pilot has no +difficulty as a rule, once he has acquired the facility that comes +with practice, in steering accurately from point to point, even when +on a long flight. On a favourable day, when the land below is clearly +visible, he will glance ahead, or to one side, and after observing +some landmark, look on his map to identify the position he has just +seen. Under such conditions steering is easy, and the compass plays a +subsidiary part. But it may happen that, while he is on a long flight +and at a considerable altitude, the earth below may be obscured by +clouds, or a low-lying mist, and all landmarks vanish from his view. +Sometimes too, he may find himself flying through mist and cloud, with +all signs of the earth gone from below. Whereupon, robbed for awhile +of any direct guidance, he must fly by aid of his map and compass, +holding his machine on its compass course, and noting carefully the +needle of his height-recorder, so that he is sure of maintaining +altitude. A risk exists under such conditions, when there is no +visible object by which to judge a course, that an airman may make +leeway, unconsciously, under the pressure of a side-wind; and so he +must be ready to note carefully, immediately that a view of the earth +is vouchsafed him, whether he has actually been making leeway, either +to one hand or the other, even while the bow of his machine has been +held on its compass course. There is a risk also, when a pilot is +flying in fog or at night, that, having no visible horizon from which +to gauge the inclination of his craft, it may assume gradually some +abnormal angle, without his own sensations telling him what is taking +place. The craft may, for the sake of illustration, incline sideways, +imperceptibly to the pilot, till it begins to side-slip. But science +can meet this danger by providing inclinometers, fitted within the +hull so that the aviator can see them easily; and by means of these +instruments, which are illuminated at night, it is possible for a +pilot to tell, merely by a glance, at what angle his machine is moving +forward through the air--whether it is up or down at the bow, or +whether its position laterally is normal. + +The beginner, on his first cross-country flight, need not be troubled +by such intricacies. He is flying, one assumes, on a fine day, with +the land spread clearly below him. So as he moves through the air, +listening always to the hum of his motor, he need have no fear, +granted that his observation is ordinarily keen, of losing his way. + +Naturally, being a novice, he will feel the responsibility of his +position. His eyes will rove constantly from one instrument to another; +as indeed, from habit, do those of a practised flyer. He will glance +at the height recorder; then at the engine revolution indicator; then +at the dial which tells him what his speed is relative to the air. +There is a dial, also, showing the pressure in his petrol-tank; while +there will be a clock on his dashboard at which he will glance +occasionally, after he has marked some position away on the land below, +so as to determine what progress he is making from the point of view +of time. + +Besides these preoccupations, and the ceaseless even if almost +unconscious attention that he must pay to his engine, there is the +need to bear constantly in his mind's eye the lie of the land. Should +his motor fail suddenly, or something happen which necessitates an +immediate descent, it is imperative that he should be able, without +delay, to choose from the ground that is visible below him some field +or open space that will provide a safe landing-point. And this is +easier said than done. The earth, when viewed by a airman who looks +down almost directly upon it, is apt to be deceptive as to its +contour. A field that is selected say, from a height of several +thousand feet, may not prove--as the aviator nears it in his glide--to +be at all the haven he imagined it. More than once, seeking to alight +on a field which appeared to him, as he was high above it, to be level +as a billiard table, a pilot has found, when it is too late, that the +ground has sloped so steeply that his machine, after landing, has run +on downhill and ended by crashing into a fence or ditch. + +It is very necessary for an airman to learn to judge, by its +appearance, the difference between an expanse, say, of pasture land, +or a field which is in green corn or standing hay. It has happened +often that a pilot, descending after engine failure towards what he +has reckoned a grass field, has discovered--when too low to change his +landing-point--that his pasture land is actually a field of green corn; +and a landing under such conditions, with the corn binding on the +running-gear of the machine, may end in the aircraft coming to an +abrupt halt, and then pitching forward on its nose; with a broken +propeller and perhaps other damages in consequence. + +In choosing a landing ground, as in other problems that face the +novice in cross-country flying, experience will prove his safeguard. +He will learn for instance that cattle or sheep, if they can be +discerned below in a field, go to show that this field is one of +pasture and not of crops. If no cattle are to be seen in a field, and +the aviator is doubtful about it, and yet if it happens to be the only +suitable one he can locate, then he may look closely at the gateway +which leads into the field. If, in this gateway, he can detect such +scars or markings on the ground as are caused by the feet of cattle as +they walk daily in and out, he may feel satisfied the field is one of +pasture. + +When cattle or sheep are seen standing in a field so that they face in +the same direction, this may suggest either the existence of a slope, +or the presence of a strong ground wind; while a stream or brook at +the edge of a stretch of open land, or a belt of woods, may suggest a +sloping of the ground. + +It is amusing for a pilot--or it was so, rather, in the days when few +aeroplanes were in existence--to note the astonishment which his +descent, made quite unexpectedly perhaps in some quiet and rural +country, will occasion amongst the inhabitants. Sometimes, under the +stress of such an excitement, people appear to lose for the time being +their power of coherent speech. A pilot in a cross-country contest, +not being sure whether he was on his right course, decided to make a +landing and ask his way. He noticed, after a while, the figure of a +man in a field below. Planing down, and alighting in the field, he +shouted questions to this man, switching his engine off and on, while +he did so, in order that his words, and those of the other, might be +audible. But the man in the field, demoralised by the advent of this +being from the air, and gazing at him and his machine with an +expression of blank amazement, was unequal to the task of giving even +the simplest directions. He waved his arms, it is true, but no words +that could be understood issued from his lips. The pilot repeated his +questions, but it was no good. The man waved and mouthed, and rolled +his eyes, but when he tried to speak intelligibly he could not. So the +aviator, loath to waste further time, accelerated his engine again and +continued his flight. + +As a contrast to this, there was the experience of a pilot who, after +a long flight from England to the Continent, landed at length near a +small village. In the next field to that in which he alighted there +was a labourer, digging patiently. The aviator expected that this man +would fling down his spade in excitement, and run wildly towards the +aeroplane. But such was not the case. This labourer, a marvel of +placidity and unconcern, merely raised his head slowly and looked +across at the aircraft, and then went on with his digging. + +In his first cross-country flights, being concerned chiefly as to the +manipulation of his machine, and having so many things to think of, +the novice may feel tired after even a short journey by air. His chief +sensation, as he switches off his engine to descend towards the +aerodrome he sees below him, will be one of relief that he has escaped +engine failure, and that he has been able to find his way from point +to point. The joy of flight, of passing swiftly thousands of feet +above the earth, will have made but a small impression upon him--at +any rate consciously. It will not be until the handling of his machine +becomes less laborious, and he has time to accustom himself to his +unique view-point, and the strangeness and beauty of the scene below +him, that the novice will realise some of the fascinations of aerial +travel; fascinations that it is difficult to describe. The sensation +of having thrown off the bonds of earth-bound folk; of soaring above +the noise and dust of highways; of being free from the obstructions of +traffic; of sweeping forward smoothly, swiftly, and serenely--the land +stretching below in an ever-changing panorama, with the drone of the +motor in one's ears, and a wine-like exhilaration in the rush of the +air: these, and others more obscure, are among the sensations of +cross-country flying. + + + + +CHAPTER XI + +AVIATION AS A PROFESSION + + +Young men, and parents on their behalf, are seeking always some +profession which will yield an adequate return for the enthusiasm +which youth lavishes upon it. Too often, though, at any rate in the +past, this search for a man's work in life has been narrowed into ruts; +conducted on certain set lines which, though they have found +employment for the beginner, have given him no scope for that +enthusiasm with which he will attack the first tasks presented him. +Aviation, till the coming of the war, was looked at askance by parents +who had sons on their hands. Apart from the risks of flying, which +appeared to them ceaseless and terrible, the actual industry of +building aeroplanes, regarded as an industry, seemed so haphazard and +objectless an affair--so much like playing at work--that they +discouraged any wish that a youth might show to enter it. Many people, +these people of intelligence, regarded the building and flying of +aeroplanes as being no more than a passing phase, and a regrettable +one, which it was hoped men would soon abandon, and turn their +attention to tasks more serious and profitable. But that was before +aircraft had proved their value as instruments of war. Now it is known +that aeroplanes have the power, granted they are supplied in +sufficient numbers, of altering the tenor of a great campaign, both by +land and sea; and that in any future war of nations, should one come, +a battle between the hostile flying fleets, fought to determine the +command of the air, will determine also, to a very large extent, the +fortunes of armies on the land and navies on the sea. It is clear +indeed that, for any great nation that strives to maintain its place, +a powerful air fleet has become a necessity; while for Britain, an +island no longer from the military point of view, seeing that we must +face seriously the question of invasions by air, there is a vital need +to strive for command of the air, as we now hold command of the sea. + +The building up of our air fleet will be an arduous task, needing men, +money, and time; but without it we cannot be secure. Therefore the +work must be faced, the men and the money forthcoming. Aviation, as an +industry, must prepare for years of strenuous work. A great air +service must be created. Machines must be designed and built in +thousands instead of hundreds, and men trained to fly them. Nor is +this all. The aeroplane, though it has such significance as a weapon +of war, is destined primarily and eventually to be an instrument of +peace; a machine for the transport by air of passengers, mails, and +goods, at speeds greater than will be feasible by land or water; and a +craft also for the use of travellers and tourists, enabling them to +make such journeys, with ease and pleasure, as will again prove +impossible by land or sea. So aviation has two immense tasks ahead of +it, instead of one. Not only must it create, by years of patient and +determined effort, a flying service which will command the air, but +craft must be designed and built also for the mail, goods, and +passenger-carrying services, and to meet the needs of the aerial +tourist. + +This new task that has been given to men, that of designing, building, +and piloting aircraft, is still on the eve of its expansion. The +opportunities it offers to young men--to men whose minds are quick to +grasp a new idea and who have the powers of initiative and +decision--are almost boundless. Flying will, as it develops, +revolutionise the world's system of transport; while the developments +even of the immediate future promise to be so great, and so important, +that it is not easy to visualise them. But this at least is clear: now +is the time for newcomers to enter the world of flight. Aviation needs +men, is calling aloud for men; and they are needed for many kinds of +work. First, of course, should be placed the flying services, naval +and military, to join which during the war men have come forward so +admirably. But it will need, in the expansion that must follow this +campaign, a steady and a ceaseless growth in numbers, not only of the +men who handle machines in flight, but of those who serve the +squadrons by their work on land, and who build up the organisation +which is vital to success. + +For skilled aviators, other than those who join the services, there is +scope for remunerative work. A constant demand exists for men who will +test and fly in their trials the new machines that are built by +manufacturers; for men who will fly, in public exhibitions, the craft +that are used at the various aerodromes; and for men who will qualify +as instructors, and join the flying schools which are already in +existence, or in process of formation. In countries oversea, too, +there is the definite promise that aircraft will be needed, not only +for survey work over wide tracts of land, and for maintaining +communication and bearing mails over districts where land travel is +difficult, but also for exploration; and this again means that pilots +will be required. New aerodromes must come into existence also; not +only to act as alighting points for touring craft, but to provide +grounds for the training of pupils; and at these aerodromes pilots +will be needed. + +Of other opportunities, apart from the piloting of aircraft, there are +many--though it is desirable for a man to learn to fly, and obtain his +certificate of proficiency, even if afterwards he does not intend +continuing as a pilot. The practical experience he gains, while +learning actually to handle an aircraft in flight, will prove +extremely useful to him subsequently, even though the task he +undertakes is one that keeps him on the ground. He may qualify, for +instance, for a post in a aeroplane factory as a designer or +draughtsman; or he may specialise in aero-motors, and seek a post in +the engine-shops. At the aerodromes, too, there are openings which +present themselves; as, for example, in the management of a flying +school. + +It has been shown that the public will go in thousands to see sporting +contests with aeroplanes, and here is another field for organisation +and effort; while there is a constant demand for men of ability in the +executive departments of firms which are established already in the +industry, and are expanding steadily, or in those which are now being +formed, or are joining aviation from day to day. + +The industry is at last on a footing that is practical and sound. It +presents a new field for effort, and one that is unexploited; while +for the man who enters it--and this should be the attraction for +youth--there are occupations as fascinating as one's imagination could +depict. But one thing must be understood clearly. Flying is, of exact +sciences, surely the most exact. The man who is only half-trained, who +is more or less slovenly in his work, who will not bend his whole +energies to his task, will find no place in this new industry. A young +man is wasting his time, if, after deciding to enter aviation, he +acquires knowledge that is no more than haphazard. He who contemplates +aviation as a profession must set himself the task of learning all +there is to be learned, and in the right way. + +Individual opportunities and circumstances will, necessarily, play so +large a part in the steps taken by a young man--or by his parents on +his behalf--to launch him on a career in aviation that it is +impossible, here, to do more than generalise. Certainly, as we have +said, it is an excellent preliminary to learn to fly; and it may be +stated also that it is now possible to place, with aviation companies +of repute, premium pupils who will undergo instruction extending over +a period of three years. A youth may, also, gain his knowledge of the +industry by becoming an indentured apprentice. + +One may say, as a conclusion to this chapter, that a great, new, and +potential industry is springing up in our midst, one which will prove +to be equally if not more important and far-reaching than the British +shipbuilding industry, and one which will employ thousands of skilled +engineers and artisans. Ships are limited to one element, the water, +which has very definite boundaries. Aircraft, too, are limited to one +element, the air; but this element has no boundaries so far as the +earth is concerned, and aircraft will be navigable to any and every +part of the globe. + + + + +CHAPTER XII + +THE FUTURE OF FLIGHT + + +It is a hopeful augury, to those concerned with aviation, that public +interest in flying should not only be keen, but should be growing. In +the early days, even when aeroplanes were so great a novelty, it was +difficult to induce people in any numbers to witness a flying display. +The first meetings, though they were organised with enthusiasm, ended +as a rule with a heavy financial loss; and this fact of course, when +it became known, had a discouraging influence on those who might, had +these early meetings proved a success, have been willing to finance +aerodromes and the building of machines. But as it was, business men, +who are quick to form conclusions, said that people would never be +induced to pay to see aeroplanes fly. But here they failed to reckon +with the fact that, though public interest in flying has been of very +slow growth, yet at the same time it has been a steady and continuous +growth. From month to month, and from year to year, as aeroplane +constructors and pilots have continued at their tasks, overcoming +technical difficulties and personal risks, the interest of ordinary +people has grown perceptibly. Even before the war--which has done so +much to focus attention on flying--the attitude of scepticism and +apathy had been greatly changed. When the London Aerodrome at Hendon +was established, there were shrewd men in the city, men who are +ordinarily very sound in their conclusions, who declared the public +would never go there in appreciable numbers. How wrong they were, how +little they gauged the change that was taking place in the public mind, +is shown by the fact that, on a popular day at this aerodrome, as +many as 60,000 people have paid for admission. + +In the immediate future, as in the immediate past, aviation will be +concerned largely with the building of naval and military craft. This +will, so to say, be the foundation of its development in other +directions. War for instance, notably in the fitting of craft with +duplicate power-plants, will provide data that is invaluable in the +building of commercial craft, and in machines also for the use of the +tourist. In aerial touring there lies an important field for the +development of aircraft--one which may serve to bridge the gap between +a relatively small, purely pleasure-type machine, and a craft which +has utility in the fields of commerce. The motor-car provides an +enjoyable means of travelling from place to place; but in the +aeroplane, once it is airworthy, reliable, and comfortable, the +tourist has a vehicle which is distinctly more pleasurable and +exhilarating. The day was dawning before the war, and will now be +hastened, when, garaging his aircraft at the London Aerodrome as a +convenient starting-point, an aerial traveller will tour regularly by +air, using his flying machine as he would a motor. Already, dotted +about England, are aerodromes he may use as halting-points on his +flight, and at which he can house his machine and secure the attention +of mechanics; and the number of these grounds should grow rapidly in +the future. + +In the aeroplane for the tourist, for the man who buys a machine and +flies for his own pleasure, it is necessary to combine comfort and +safety. As regards comfort, though much remains to be done in the +perfection of detail, the occupants of a machine are now more studied +than they were in the pioneer days. Then a pilot sat out on a crude +seat, exposed fully to the rush of wind as a machine moved through the +air. Now he is placed within a covered-in hull, a screen to protect +him from the wind. From this stage, as was the case with the motor-car, +rapid progress should be made in a provision of comfort. + +When touring by air under favourable conditions, there should be no +more risk with an aircraft than with a motor-car. One of the most +frequent causes of accident, as we have shown, has been the structural +weakness of a machine. Now, with the experience of the war on which to +draw, and with many clever brains focussed on the development of the +industry, this risk may be regarded as almost non-existent; as +negligible a factor as it is possible to make it, remembering that +aircraft, like other mechanism, have to be built by human hands. + +Another risk, that of engine failure, may, as we have explained, be +eliminated by the use of more than one motor. In the application of +such systems there is still much to be learned; but the obstacles are +not insuperable. One advantage that can be offered the aerial tourist, +reckoning him as a pilot of no more than average skill, who needs all +the aid that science can give him, is that he can obtain a machine +which, owing to its automatic stability, requires merely to be taken +into the air and brought to earth again, and which will practically +fly itself, once it is aloft. + +One of the needs with a touring machine, to which makers must devote +their attention, is that it should be able to leave the ground quickly +in its ascent, and so permit its pilot to rise even from a small +starting ground. And it is equally necessary that, on occasion, a +machine should be able to alight safely, and at a slow speed, in quite +a small field. An aviator who had given up aviation temporarily, after +a long spell of cross-country flying, was asked one day when he was +going to fly again. "I shan't do so," he said, "till I can buy a +machine with which I can alight in my own garden." + +Already there are craft which, provided high speeds are not expected +of them, and they are given ample plane-surface, will alight at quite +a moderate pace; but in the future, by the use of machines which have +the power of increasing or reducing their wing-surfaces while in +flight, it should be possible to descend in a space no larger, say, +than a garden. In the construction of variable-surface machines, +technical problems need to be faced which are unusually difficult. The +theory with such craft is that their sustaining planes, either by a +telescopic system, or by some process of reefing, are built so that +they can be expanded or contracted at the will of the pilot. Thus in +rising, when a machine is required to ascend with a minimum run +forward across the ground, a large area of lifting surface would be +exposed; and at the moment of alighting, also, when it was desired +that a machine should make its contact with the ground at the slowest +possible speed, a maximum of plane surface would be employed. But when +aloft, and in full flight, the pilot would be able if he so desired to +reduce the area of his lifting surface, and so increase materially his +speed. With a machine of this type, when perfected, it should be +possible to rise quickly, and descend slowly, and yet at the same time, +when well aloft, attain a high speed with moderate engine-power. + +The commercial possibilities of aviation are vast and far-reaching: +not for nothing, after centuries of striving, have men conquered the +air. The aeroplane is destined, by the facilities it offers for +communication between nations, to play a vital part in the growth of +civilisation. The construction and perfection of a commercial +aeroplane, a machine which can be used for the transport of passengers, +mails, and goods, represents largely a question of time and of money. +Technical problems still need to be solved. But none of them are +insurmountable. All should be overcome by an expenditure of money and +in the process of time--granted of course that research is directed +upon the right lines. A sufficient amount of money for experimental +work, which in aviation is very costly, was one of the prime +difficulties before the war. Capitalists were chary of aviation; they +had no faith in it. Now, after the work aircraft have done in war, and +with the need to provide the world with air fleets, the industry need +live no longer from hand to mouth. There should be funds available for +experiments with commercial-type aeroplanes. + +As to the factor of time, this depends largely on the facilities that +are obtained by the industry--apart from its work on naval and +military craft--for test work with other machines. But in five years' time, +granted progress continues on the lines now promised, we should +have a service of passenger aeroplanes, each carrying fifty or more +people, flying daily between London, the Midlands, and the North; +while in ten years' time it should be possible to cross the Atlantic, +from London to New York, by means of a regular service of aerial craft. + +The commercial aeroplane, even when perfected, would not be likely to +compete successfully with other means of transit unless it could offer +the advantages of a greater speed. Here, indeed, in the speeds they +will attain, lies the future of aircraft. The air will be our highway +because, in the air, speeds will be reached that are impossible on +land or sea. As civilisation extends--this is of course a +truism--there grows with it a need for speedier travel; and we have +seen land and sea transit striving to meet this demand. But both have +reached, or are rapidly reaching, a limit of speed--a limit imposed by +the need to carry their passengers and goods on a remunerative basis. +On the sea, by burning excessive quantities of coal, it is possible to +add a few knots to the speed of a great liner. But then the problem +becomes one of profit and loss; while with trains--so nearly under +existing conditions have they reached a limit of speed--that a +difficulty is experienced, even on long runs, and under favourable +circumstances, in saving a minute here and there. It is not of course +to be assumed, when the spur of a greater necessity comes, that land +and sea transit will fail altogether to increase their existing +speeds. There is the mono-rail system of land traction, electrically +propelled, which has yet to be tested in a practical way; while on the +sea, perhaps, under pressure of competition, and with an increasing +demand for greater speeds, it may be possible to adapt with advantage, +even on large craft, some principle of the hydroplane. + +But by way of the air, granted even a speeding-up on land and sea, +should go the high-speed traffic of the future. By a greater +efficiency in lifting surfaces and by reductions in the resistance a +craft offers to its own passage through the air; by the provision of +systems which will permit a pilot to reduce plane-area when his +machine has gained altitude and he desires a maximum speed; by the +equipping of craft with motors developing thousands of horse-power for +a very low weight--by such means, and by a general improvement in +design, it should be possible, eventually, to attain flying speeds of +150, 200, and even 250 miles an hour. From London to New York by air +liner, in less than twenty hours; such, for instance, should be an +attainment of the future. + +It seems probable, in the development of the commercial aeroplane, we +shall have machines for touring and for pleasure flights--craft not of +large size but in which efforts are made to obtain a greater +reliability and comfort. Then it appears likely that aircraft may +reach a practical use as carriers of mails and of light express goods; +first of all in localities, and under conditions, which favour +specially an aerial transit. And from this phase we should move to the +passenger-carrying craft; to the days when we shall be able to spend a +week-end in New York, as readily as it has been the habit to do in +Paris; when we shall be able to reach any part of the world in a +journey by air lasting, say, a week or ten days. Then, as a recompense +for the lives that have been lost, and for a conquest that has been so +dearly won, the world will enter upon an age of aerial transit--the +age when frontiers and seas will act as barriers no longer, when +journeys that now last weeks will be reduced to days, and those of +days to hours; when first of all Europe, and then the world, will be +linked by airway. + + +THE END. + + + + +INDEX + + + AERODROMES, their evolution, 14 + + Age, its relation to flying, 11 + + Alighting, operation of, 51 + + + BIPLANES and tuition, the "pusher" type, 16 + + Bleriot, Louis, study of his methods as a pilot, 84 + + + CERTIFICATE of proficiency, tests for, 54 + + Cody, S. F., 90 + + Commercial possibilities of aviation, 107 + + Conneau, Lieut. J. ("Beaumont"), 87 + + Constructional weakness in aeroplanes, risks of, 60 + + Controllability of aeroplanes, problems of, 33 + + Cross-country flying, pupils' first experiences, 92 + + + DUAL-ENGINE machines, 79 + + + ENGINE failure, risks of, 65 + + Enjoyment of learning to fly, 12 + + + FARMAN, Henri, pioneer work as an aviator, 86 + + Fees for tuition, 13 + + First flights, pupil as passenger, 39 + + + HEALTH and flying, 10 + + Human factor in relation to accidents, 71 + + + IMPROVEMENTS in aircraft which spell safety, 76 + + Industry of aviation, its expansion, 100 + + Instructors, qualifications necessary, 15 + + + LATHAM, HUBERT, temperamental study, 86 + + Learning to fly not dangerous, 11 + + + MANUAL dexterity, need of, 12 + + + OPPORTUNITIES for the newcomer in aviation, 101 + + + "ROLLING" (handling a machine on the ground), 43 + + + SCHOOL aeroplanes, types of, 16 + ---- aeroplanes, need for ample supply, 15 + ---- biplane, its controls, 34 + + Schools, modern, their conveniences, 18 + + Sensations of flight, 41 + + Speed in its relation to flying, 31 + + Speed, promise of the future, 109 + + Straight flights, 44 + + Sustaining planes, their operation, 32 + + + TEMPERAMENT, the ideal for flying, 22 + + Time required in learning to fly, 19 + + Touring by air, 105 + + Turning in the air, 46 + + + VEDRINES, Jules, his piloting, 90 + + Vol-plane, the, 48 + + + WEATHER, its effect on tuition, 38 + + Wind fluctuation, dangers of, 62 + ---- flying, 80 + + Wrights, Wilbur and Orville, 82 + + + + +BIBLIOGRAPHY + + +_Some books selected as being likely to appeal to a man, without +technical knowledge, who contemplates learning to fly._ + +"THE AIRMAN," by CAPTAIN C. MELLOR, R.E. Published by Mr. John Lane, +the Bodley Head, London. (3s. 6d.) + +Describes the author's experiences, in France, while obtaining a +brevet on a Maurice Farman biplane. + +"THE ESSAYS OF AN AVIATOR." Obtainable from "Aeronautics," 170, Fleet +Street, London, E.C. (2s. 6d.) + +A series of admirable papers, written by a pilot and from a pilot's +point of view. + +"THE AERONAUTICAL CLASSICS." A series of booklets issued at 1s. each +by the Aeronautical Society, 11, Adam Street, Adelphi, London, W.C. + +Describe authoritatively, and very interestingly, the work of great +pioneers. + +"FLIGHT WITHOUT FORMULAE," by COMMANDANT DUCHENE, of the French Genie +(translated from the French by John H. Ledeboer). Published by +Longmans, Green & Co., 39, Paternoster Row, E.C. (7s. 6d.) + +Instructive discussions, clearly expressed, on the mechanics of the +aeroplane. + +"PRINCIPLES OF FLIGHT," by A. E. BERRIMAN. Obtainable from "Flight" +Offices, St. Martin's Lane, London, W.C. (2s.) + +"AERO ENGINES," by G. A. BURLS. Published by Charles Griffen & Co., 12, +Exeter Street, Strand, London, W.C. (8s. 6d.). + + * * * * * + +AUTHORS' NOTE.--The above list does not, of course, pretend to +be in any way complete. It is designed merely to act as a +suggestion for the novice.--C. G.-W., H. H. + + * * * * * + +THE LONDON AND NORWICH PRESS LIMITED, LONDON AND NORWICH, ENGLAND + + + + + +End of the Project Gutenberg EBook of Learning to Fly, by +Claude Grahame-White and Harry Harper + +*** END OF THIS PROJECT GUTENBERG EBOOK LEARNING TO FLY *** + +***** This file should be named 27557.txt or 27557.zip ***** +This and all associated files of various formats will be found in: + https://www.gutenberg.org/2/7/5/5/27557/ + +Produced by the Online Distributed Proofreading Team +at https://www.pgdp.net (This file was produced from +images generously made available by The Internet +Archive/American Libraries.) + + +Updated editions will replace the previous one--the old editions +will be renamed. + +Creating the works from public domain print editions means that no +one owns a United States copyright in these works, so the Foundation +(and you!) can copy and distribute it in the United States without +permission and without paying copyright royalties. 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