Paul Cornu (; 15 June 1881 – 6 June 1944) was a French engineer.
Cornu first built an unmanned experimental design powered by a 2 hp Buchet engine.
His manned helicopter was powered by a Antoinette engine. eurocopter.com He piloted this construction himself at Normandy, France on 13 November 1907. Previously, a French helicopter, the Breguet-Richet Gyroplane I, had managed to lift off under its own power, but it had been held in position by men standing on the ground. Cornu's performance was a considerable progress because his aircraft flew without additional support and lifted Cornu about 30 cm (1 ft) for 20 seconds. Unfortunately this early helicopter was scarcely maneuverable and had only a few additional flights. The construction was not much further developed by this technical pioneer, who had to keep on making a living by manufacturing .
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