Definition of flat spin in English:

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flat spin

Pronunciation: /ˈflat ˈˌspin/

noun

Aeronautics
A spin in which an aircraft descends in tight circles while remaining almost horizontal.
Example sentences
  • The human tolerance to a flat spin is about 140 RPM, and uncontrolled spin rates of up to about 200 RPM can occur.
  • His port wing clipped the canyon wall and sent him into a violent flat spin in excess of Mach Seven.
  • The glider then began a flat spin from about 300 feet.

For editors and proofreaders

Syllabification: flat spin

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