variable sweep

variable sweep

An aircraft in which the sweep of the wings can be controlled from the cockpit by the pilot. The wings have little or no sweepback at lower speeds, and the sweepback increases as the speed increases. See also variable-geometry aircraft.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved
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The variable sweep of the OFW, according to DARPA, allows for efficient operation at both low and supersonic speeds and excellent flexibility for future military missions requiring rapid deployment, long range, and endurance.
'Flying Wing' program moves ahead

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