单词	autorotation
释义	autorotation noun au·​to·​ro·​ta·​tion ˌȯ-tō-rō-ˈtā-shən  : the turning of the rotor of an autogiro or a helicopter with the resulting lift caused solely by the aerodynamic forces induced by motion of the rotor along its flight path autorotate ˌȯ-tō-ˈrō-ˌtāt  intransitive verb Example Sentences Recent Examples on the Web The altitude record for a rotorcraft stands at just over 40,000 feet, and during that flight the engine flamed out and the pilot had to land using autorotation. Jay Bennett, Popular Mechanics, 15 May 2018 According to People, an autorotation is when an aircraft flies purely through air moving up its rotors. Megan Friedman, Country Living, 14 Sep. 2017 The company also should not have let an inexperienced instructor perform an autorotation on Kristian Blackwell's first night flight, the lawsuit said. Samantha Matsumoto, OregonLive.com, 25 May 2017 Word History First Known Use 1926, in the meaning defined above
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