The Gyrodyne was a private venture development by Fairey to investigate potential designs for high speed rotorcraft. The initial prototype used a conventional, transmission drive with anti-torque provuded by a forward thrusting propeller mounted on the starboard side. The second version used tip jets as the main rotor drive with dual propellers mounted on stub wings to provide thrust compounding.
December 7, 1947
Gyrodyne (FB-1): First flight of the first British compound helicopter (Fairey Gyrodyne/FB-1)
June 28, 1948
Gyrodyne (FB-1): Fairey Gyrodyne/FB-1 establishes a world speed record for rotorcraft