Igor Sikorski, a Russian born American, invented the first practical helicopter.
No African American invented the helicopter. The first practical helicopter was invented by Igor Sikorski, a Russian American.
Igor Sikorsky
I am wondering where was helicopter invented?
Igor Sikorski invented the first practical flying helicopter.
not a toy helicopter! The helicopter was invented in 1948 by a Russian engineer...
Leonardo DaVinci was from Vinci, Italy. Igor Sikorski, the guy who actually made it work, was Russian.
Nobody invented the helicopter in 1918
Attempts to create helicopters can be traced back to Leonardo da Vinci, but the first working prototype helicopter, the VS-300, was invented by Igor Sikorsky (Russian/American) in 1939. The next model he designed was the R-4 in 1942, which was the world's first mass produced helicopter
An engineer, Igor Sikorski, invented the helicopter.
Igor Sikorsky invented the first practical helicopter around 1940
Igor Sikorsky invented the helicopter.
no