THE CURTISS BIPLANES.—In 1909 came the "June-bug," the united product of Glen Curtiss, Dr. Graham Bell, and J. A. D. McCurdy. Then the box-kite type, 1909, on which Mr. Curtiss won the Gordon-Bennett Race at Reims. Next the "rear-elevator" pusher, 1912, followed by first tractor, 1913, with an outside flywheel. All purely Curtiss machines to that date had independent ailerons intended to get away from Wright patents. Following these came tractors with engines varying from 70 to 160 h.p., fitted with varying types of chassis. All these have ordinary ailerons.
THE BLERIOT (1).—The first engine-driven machine was a "canard" monoplane. Then came the curious tractor monoplanes 1908–1909, in order shown. Famous "Type XI" was prototype of all Bleriot successes. "Type XII" was never a great success, though the ancestor of the popular "parasol" type. The big passenger carrier was a descendant of this type.