gyrodyne
(redirected from Heliplane)Also found in: Encyclopedia.
gyrodyne
(ˈdʒaɪrəʊˌdaɪn)n
(Aeronautics) an aircraft that uses a powered rotor to take off and manoeuvre, but uses autorotation when cruising
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014