Alberto Santos-Dumont, a daring young Brazilian who a few years earlier had astounded the world with his achievements with dirigible balloons, was the first of the aviators working in Europe to construct a practical man-carrying power flier. Scores of brilliant foreigners were working on the principles for gliders laid down by Lilienthal, but Santos-Dumont, working along the ideas of the scientists who had built power-propelled models, made himself a clumsy biplane equipped with a 50-horsepower motor and actually inaugurated public flights, considering that all done by the Wrights up to that time was experimental and practically in secret.
On August 22, 1906, he made his first flight near Paris. It was brief, but authorities agree that it was the first time in Europe that a power-propelled flier had risen in free flight with a man at the steering wheel since Ader's secret flight in 1892. Two months later he made a public flight of 221 metres in 21 seconds, winning the world's first regularly offered aviation prize. This was the Archdeacon Cup of 2,000 francs authorized by the Aero Club of France for a flight of 100 metres.
Scientists gave these flights more attention than they did the flights of the Wright brothers the year before because they were viewed by many thousands of people and also by men who had studied the science of aviation for years. Besides this, Santos-Dumont made no secret of the construction or workings of his machine as the Wright brothers did. He was already a popular idol through his work with dirigible balloons, and being very rich—the son of a millionaire plantation owner in Brazil—he did not have the same financial incentive for keeping his plans secret.
His flights gave the aviators of France tremendous encouragement and it was but a short time until half a dozen aeroplanes, the makes of which are all well known now, were making successful flights and breaking records.
Santos-Dumont called his biplane an aeromobile. The two main planes had perpendicular surfaces enclosing them so that the wings of each side looked like two box kites hitched together side by side, as shown in the picture. The rudder extended to the front and it also looked like a box kite. The pilot sat just in front of the wings and could manipulate his rudder from side to side or up and down. Thus he could steer his machine from right to left, upward or downward. The Brazilian had not solved the problem of keeping his aeromobile from tipping sideways, so he arranged its wings in a dihedral angle, which balanced it fairly well. The starting and alighting device was a set of wheels which we know so well to-day. The biplane contained 65 square feet of plane surface and the total weight was 645 pounds.
Perhaps the most important factor in this machine was an eight-cylinder 50-horsepower Antoinette gasoline motor. This was the first time that this now famous motor was used in an aeroplane and it gave promise at that time of the prize-winning capabilities it later developed. The propeller, which was made of aluminum, was about six feet in diameter, or about two feet less than the diameter of the twin screws in the early Wright biplanes.
Copyright H. M. Benner, Hammondsport, N. Y.
THE JUNE BUG