plane
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
Where invented the first plane?
Igor Sikorski invented the first practical flying helicopter.
usa
The first practical helicopter was invented about 1942
The helicopter was first used as a troop transport.
Igor Sikorsky invented the first practical helicopter
Igor Sikorski, a Russian born American, invented the first practical helicopter.
That is Igor Sikorski, and he was in his 40 's when he invented the first practical helicopter.
Sikorsky
to fly