Helicopters were designed as early as the one by Leonardo DaVinci in 1493, but none were built.
The inventor of the first actual rotor aircraft was Igor Skorsky in 1909, and his first successful demonstration was in 1910. The first actual autonomous flight was by the Breguet-Dorand gyroplane in 1933-1935. Until late 1941, helicopters had not flown continuously for more than 92 minutes.
no but, they were drawn on a piece of paper in the 15 century.
No African American invented the helicopter. The first practical helicopter was invented by Igor Sikorski, a Russian American.
Igor Sikorsky invented the first practical helicopter around 1940
Igor Sikorski invented the first practical flying helicopter.
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The helicopter was first used as a troop transport.
Igor Sikorsky invented the first practical helicopter
The first practical helicopter was invented about 1942
That is Igor Sikorski, and he was in his 40 's when he invented the first practical helicopter.
Igor Sikorski, a Russian born American, invented the first practical helicopter.
to fly
Sikorsky