Helicopter

Airplanes fly while Helicopters simply beat the air into submission – unknown

Helicopters can be though of evolving seeds, to ancient Chinese toys, to the Through and evolution of Staring from early toys, Helicopters were conceived first by da Vinci

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https://en.wikipedia.org/wiki/Juan_de_la_Cierva

 

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V/STOL Aerodynamics and Modeling Copyright © by mi508668. All Rights Reserved.

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