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George Cayleys 1796 helicopter model
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George Cayleys 1796 helicopter model
Right: George Cayleys 1796 helicopter model: the contra-rotating rotors are feathers stuck in corks, operated by a bow-string. It is a variation of the models made in 1784 by Launoy and Bienvenu (left)
Media ID 9894341
© The Royal Aeronautical Society (National Aerospace Library) / Mary Evans Picture Library
1784 1796 Cayley Cayleys Contra Corks Feathers Helicopter Models Operated Right Rotating Rotors String Stuck Variation
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