gyrodyne

(redirected from Heliplanes)
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gyrodyne

(ˈdʒaɪrəʊˌdaɪn)
n
(Aeronautics) an aircraft that uses a powered rotor to take off and manoeuvre, but uses autorotation when cruising
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References in periodicals archive ?
From Andrews Avenue, at least six helicopters, three of them apparently heliplanes, could be seen taking off from the airport at around 1:52 p.m.
Tecu also has been roughed up a bit while doing stories on gyrocopters, gyroplanes and heliplanes. He has a whole new respect for helicopter pilots, especially those who fly in the open below the whirring rotor hub.