First flight of the first British compound helicopter (Fairey Gyrodyne/FB-1)
Sunday, December 7, 1947
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Description
The aircraft featured a powered main rotor and used a propeller mounted on the starboard wing as both an ant-torque device and for forward propulsion. Source: "Hybrid Helicopters: Compounding the Quest for Speed", Raymond L. Robb, VERTIFLITE Summer 2006, Page 35
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