autorotation

noun
au·to·ro·ta·tion | \-rō-ˈtā-shən \

Definition of autorotation 

: 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

Keep scrolling for more

Other Words from autorotation

autorotate \-ˈrō-ˌtāt \ intransitive verb

Examples of autorotation in a Sentence

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, "How to Fly a Helicopter on Mars," 15 May 2018 According to People, an autorotation is when an aircraft flies purely through air moving up its rotors. Megan Friedman, Country Living, "An Official Report Details What Went Wrong in Troy Gentry's Fatal Helicopter Crash," 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, "Wife of man killed in helicopter crash sues flight school," 25 May 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'autorotation.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of autorotation

1926, in the meaning defined above

Keep scrolling for more

Learn More about autorotation

Share autorotation

Statistics for autorotation

Look-up Popularity

Time Traveler for autorotation

The first known use of autorotation was in 1926

See more words from the same year

Comments on autorotation

What made you want to look up autorotation? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

lying above or upon

Get Word of the Day daily email!

Test Your Vocabulary

Words from Greek and Roman Mythology Quiz

  • the-triumph-of-venus-by-alessandro-magnasco
  • Boreal comes from the name of the ancient Greek god of which wind?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!