autorotatev.
/ˌɔːtə(ʊ)rə(ʊ)ˈteɪt/, U.S. /ˌɔdoʊˈroʊˌteɪt/, /ˌɑdoʊˈroʊˌteɪt/ Aeronautics.
intransitive. To undergo, exhibit, or use autorotation.
ΘΚΠ
society > travel > air or space travel > a means of conveyance through the air > rotary wing aircraft > [verb (intransitive)] > rotate unpowered (of rotor)
autorotate1920
1920 Flight 12 1194/2 Below 15° the aerofoil remains at rest, but at high angles it auto-rotates, slowly at first, and then more quickly.
1938 Jrnl. Royal Aeronaut. Soc. 42 578 The lifting screw in this case autorotates and is not engine driven.
1977 New Yorker 2 May 79/1 Because the Messerschmidt had two engines..he would not have to autorotate down if one were to fail.
2006 J. G. Leishman Princ. Helicopter Aerodynam. (ed. 2) vii. 393 The ability to autorotate in an emergency condition..is a fundamental safety of flight capability that must be designed into all helicopters.
This is a new entry (OED Third Edition, June 2011; most recently modified version published online December 2021).
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