yaw damper


Also found in: Acronyms, Wikipedia.

yaw damper

[′yȯ ‚dam·pər]
(aerospace engineering)
A control system or device that reduces the yaw of an aircraft, guided missile, or the like.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

yaw damper

yaw damperclick for a larger image
A part of an automatic flight control system used to keep the aircraft from unwanted yawing. A yaw damper senses the onset of yaw and immediately applies the correct rudder to eliminate it. Yaw dampers are used in swept-wing aircraft to reduce their tendency to dutch roll.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved
Mentioned in ?
References in periodicals archive ?
For example, the left side of the bezel houses three color LEDs located adjacent to the AP (autopilot engage), FD (flight director on/off) and YD (yaw damper on/off) buttons, so there's never any guessing which is engaged.
Aft fuselage strakes add yaw stability and make the PC-12 NG the only airplane we know of that has no restriction to its flight envelope if the yaw damper is inop.
A yaw damper adds the third axis--not heading command as some are led to believe--and uses a dedicated servo to the rudder for coordinated flight.
For example, there's a pitch/rate thumbwheel, rather than a knob or rocker, and there are dedicated keys to engage pitch, rate or airspeed vertical changes, plus dedicated keys for the flight director and--a new feature--a yaw damper. (Considering the SR22's lack of excessive adverse yaw and minimal yaw-roll coupling tendencies at cruise speed, we're not sure how necessary the damper is, but the AP has it and customers of high-end aircraft will probably want it, even if they don't ask for it.