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gyroplane
gyroplane n.
Brit. 
/ˈdʒʌɪrə(ʊ)pleɪn/
, /ˈdʒʌɪrə(ʊ)pleɪn/U.S. /ˈdʒaɪrəˌpleɪn/
= gyrocopter n./ˈdʒaɪrəˌpleɪn/ΘΚΠ
society > travel > air or space travel > a means of conveyance through the air > rotary wing aircraft > [noun] > helicopter or gyrocopter
helicopter1861
automotive1865
gyroplane1907
gyropter1908
gyrocopter1915
egg-beater1937
mixmaster1946
'copter1947
chopper1951
whirlybird1951
1907 Nature 5 Dec. 107/1 The gyroplane of Messrs. Breguet..revives interest in the attempt to overcome gravity by vertical screw propellers.
1935 Jrnl. Royal Aeronaut. Soc. 39 177 Aerodynamic analysis of the gyroplane rotating-wing system.
1969 Daily Tel. 10 Mar. 1/8 Mr. Ernest Brooks, 39, the garage owner who designed and built the Mosquito gyroplane, was fatally injured yesterday when it plunged 250 ft. to the ground.
1969 Daily Tel. 10 Mar. 1/8 The tiny £1,000 gyroplane could cruise at 40 mph at 1000 ft and was capable of 80 mph.
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as lemmas