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De Bothezat Helicopter 1939

bothezat-1940


De Bothezat who, after abandoning his first helicopter in 1923, had created a firm for the design and  manufacturing of industrial fans, returned in 1937 to the helicopter: he created then the Helicopter Corporation of America and built a coaxial helicopter.


A single-seat close-cockpit helicopter with 85hp radial engine and two coaxial rotors, the machine was completed by De Bothezat's colleagues after he passed away in 1939.
Testing was entrusted to a Russian ace of World War I Captain Sergievsky.

 


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