Simon the magician—A monk who sprang from a tower—The Saracen who “rose like a bird.” In learning to fly, men have passed through five definite and clearly-marked stages which have extended over centuries, and cost many lives. These five stages may be summarized thus: 1. Haphazard and foolhardy tests—ending generally in death. 2. A period of scientific research, in which the flight of birds was studied and experiments made with lifting planes of various shapes. 3. A phase during which engineers built large, power-driven machines, but had not the skill to control them when in flight. 4. A stage in which, making a simple apparatus of wings, men glided from hilltops, and learned to balance themselves while in the air. 5. The stage in which, perfecting the gliding machines they had learned to control, men fitted petrol motors to them, and achieved at last a power-driven flight. In dim, remote ages, watching winged creatures as they skimmed above the earth, men longed passionately to fly; instead of scaling hills or creeping through woods, they desired to pass high above them; to spurn “With each advent of spring, when the air is alive with innumerable happy creatures; when the storks, on their arrival at their old northern resorts, fold up the imposing flying apparatus which carries them thousands of miles, lay back their heads and announce their arrival by joyfully rattling their beaks; when the swallows have made their entry and hurry through our streets and pass our windows in sailing flight; when the lark appears as a dot in the ether and manifests its joy of existence by its song; then a certain desire takes possession of man. He longs to soar upward and to glide free as a bird over smiling fields, leafy woods, and mirror-like lakes, and so enjoy the fairy landscape as only a bird can do.” But man’s first attempts to fly were ill-judged and foolish. He failed to understand the problems involved; he forgot that, even were he able to build a machine which would navigate the air, he must learn to control this craft; must learn to steer and balance it, and make it ride the gusts. One might, for example, take a bicycle and say to a man: “Here is a machine that can be propelled along the road; mount it and ride away.” But if the man had not learned to handle a bicycle, and balance himself on one, he would swerve for a few yards and then fall. So with the man who, without forethought or study, sought to navigate the air. Probing the recesses of history we find that, even as far back as the reign of the Emperor Nero, there was one Simon the magician who—if legend can be credited—sought “to rise towards Heaven.” Simon, Fig. 1. Looking back into history, one fact is striking; and this is the part that monks played in studying flight. They had leisure to think, and time in which to make tests; and in many a monastery, hundreds of years ago, quaint theories were propounded and queer craft planned. In the eleventh century, at Malmesbury in England, there was a Benedictine monk named Elmerus, or Oliver, more ambitious than many of his brethren. He built himself a machine with wings; then, in order to put it to the test, he ascended a tall tower, faced the wind, and sprang into the air. That he had studied weighting and balance to some purpose In the fifteenth century, working upon more sensible lines of thought, Leonardo da Vinci—an Italian genius who was painter, inventor, sculptor, writer, and musician “The kite and other birds, which beat their wings little, go seeking the course of the wind, and when the wind prevails on high then will they be seen at a great height, and if it prevails low they will hold themselves low. When the wind does not prevail at all, then the kite beats its wings several times in its flight in such a way that it raises itself high and acquires a start, descending afterwards a little and progressing without beating its wings, repeating the same performance time after time.” Da Vinci, too, had some notion as to the need for balancing a machine while in the air, and did not seem—like most others of the early pioneers—to imagine that once a man had launched himself from a height he would be able to control his craft by instinct. He wrote, indeed, suggesting the position of a pilot in a flying machine, that “he should be free from the waist upwards, in order that he might keep himself in equilibrium, as one does in a boat.” He realised, too, a fact that the modern airman always bears in mind; and that is the value of flying high. Da Vinci wrote in this regard: “Safety lies in flying at a considerable height from the ground, so that if equilibrium be temporarily upset there may be time and space for regaining it.” Among the machines Da Vinci planned was an ornithopter, or craft with arched wings which would flap like those of a bird; and a helicopter, or apparatus in which revolving screws are used to draw it up into Fig. 2.—Besnier’s Apparatus. From this time, until the beginning of the nineteenth century, men still strove to fly, but all of them failed to see a vital point: that they must learn gradually to balance themselves in the air, even as the young birds have to do. So those who were not killed were badly injured, and those who persisted in experiments were looked upon either as madmen or fools. Some, however, were not so foolish as they seemed. They brought forward schemes so as to attract the attention of kings and those in high places; and this was particularly the case in France, during the reigns of Louis XIV. and Louis XV. Fig. 3.—De Bacqueville (1744). |