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Deceleron

From Wikipedia, the free encyclopedia
An A-10 Thunderbolt II with its decelerons opened

The deceleron, or split aileron, was developed in the late 1940s by Northrop, originally for use on the F-89 Scorpion fighter. It is a two-part aileron that can be deflected as a unit to provide roll control, or split open to act as an air brake. Decelerons are used on the Fairchild Republic A-10 Thunderbolt II, and in turn to a stabilizer the Northrop Grumman B-2 Spirit flying wing.[1] In differential use they impart yaw moment, potentially obviating the rudder and vertical stabilizer control surface, although requiring active flight control.

See also

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References

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  1. "NORTHROP FLYING WINGS-PART 1" (PDF). United States Department of Defense. Retrieved 19 Oct 2025.
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  • Wikimedia Commons logo Media related to Decelerons at Wikimedia Commons
  • XF-89 Research Report