Who has made helicopter
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The craft made its first flight—tethered for safety—on September 14, 1939, at the company's plant at Stratford, CT, with Sikorsky himself at the controls. Igor Sikorsky with Orville Wright upon delivery of the first helicopter (XR-4) to the US Army at Wright Field in 1942
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Question :-
Who has made helicopter ?
Answer :-
Igor Sikorsky, Paul Cornu and Arthur M. Young
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