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dive brake

noun

, Aeronautics.
  1. a flap deployed from the wings or fuselage of an aircraft, as a dive bomber or sailplane, that increases drag to permit a relatively steep angle of descent without a dangerous buildup in speed.


dive brake

noun

  1. a flap or spoiler extended from the wings of a ground-attack aircraft for controlling a dive
  2. another name for air brake
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word History and Origins

Origin of dive brake1

First recorded in 1935–40
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Example Sentences

Well, they calculated to set the dive brakes at twelve degrees at the point where Lynds was.

The jet fighter was coming up astern, dive brakes extended to reduce its speed.

I switched off the automatic controls at the point where the dive brakes were to have been engaged.

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