Heliplane revisits Rotodyne’s high-speed hopes

On the subject of compound autogyros, Flight International alumnus Stewart Penney points me to this great video of the Fairey Rotodyne – Groen’s inspiration for the Heliplane gyrodyne. The Rotodyne’s rotor was tipjet-driven for take-off and landing and autorotated in the cruise, propulsion being provided by a pair of Napier Eland turboprops. The Rotodyne set a speed record of 190.9mph in 1959, but was cancelled in 1962 for reasons more political than technical.

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