25 Human made Flying Machines

#13 – Helicopter

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This is a kind of rotorcraft in which rotors provide lift and push, the helicopter is an aircraft that can take off and land itself, it can fly forward, in reverse, and sideways. There have been several ideas like current helicopters recorded for the past hundreds of years, yet it wasn’t discovered until 1936 when the helicopter was created by Focke-Wulf FW 61.