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trim tab

noun, Aeronautics
an independently controlled tab set in the trailing edge of a control surface, as an elevator, aileron, or rudder, to hold it in a position suitable for stabilizing the aircraft in a flight attitude.
Also, trimming tab. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for trim tab
  • The elevator trim tab was found attached, and cable continuity was established from the trim tab to the middle of the cabin floor.
  • The trim tab controller shall be located at the operator's station.
  • Maintenance personnel investigated and found a bolt and bushing missing from the right elevator trim tab horn.
  • The horizontal tail plane has a fixed stabilizer with an elevator and trim tab.
  • The left trim tab is an adjustable tab, which is operated by the pilot.
  • Where irreversible trim tab control systems are used.
  • The inboard portion of the trim tab was intact and moved freely.
British Dictionary definitions for trim tab

trim tab

a small control surface attached to the trailing edge of a main control surface to enable the pilot to trim an aircraft
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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