Definition of autorotation in English:

autorotation

Syllabification: au·to·ro·ta·tion
Pronunciation: /ˌôtōrōˈtāSHən
 
/

noun

  • 1Rotation of an object caused by the flow of moving air or water around the shape of the object (e.g., a winged seed).
  • 1.1Autorotation in the rotor blades of a helicopter that is descending without engine power.
    More example sentences
    • I entered autorotation, jettisoned the external load and landed the aircraft.
    • Unless the crew had the presence of mind to close both throttles at the instant of autorotation, an asymmetric thrust condition would have made an inverted spin even more unstable.
    • The two were reportedly practicing high-altitude autorotations at 6,000 ft near the northern Italian air force base at Rimini.

Derivatives

autorotate

Pronunciation: /-ˈrōtāt/
verb
More example sentences
  • Diaspores are 22-mg and 22 mm long samara-like winged seeds that autorotate while falling at an average terminal velocity of 0.81 [+ or -] 0.01 m/s, mean [+ or -] 1 SE.
  • During a previous flight, the pilot successfully autorotated to a field when the dual magneto failed.
  • Subsequent to the ‘flameout,’ the aircraft was autorotated and a safe landing was made.

More definitions of autorotation

Definition of autorotation in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day maelstrom
Pronunciation: ˈmeɪlstrəm
noun
a powerful whirlpool in the sea