yaw indicator

yaw indicator

[′yȯ ‚in·də‚kād·ər]
(aerospace engineering)
A device that measures the angular direction of the airflow relative to the longitudinal vertical plane of the aircraft; this may be accomplished by a balanced vane or by a differential pressure sensor that aligns the detector to the airflow, and in so doing transmits the measured angle between the normal axis and the detector as the yaw angle.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

yaw indicator

yaw indicator
Yaw indicator.
A device that measures the angular direction of the airflow relative to the longitudinal vertical plane of the aircraft. This may be accomplished by a balanced vane or by a differential pressure sensor that aligns the detector to the air-flow and, in so doing, transmits the measured angle between the normal axis and the detector as the yaw angle. The yaw is also measured and indicated by a turn and slip indicator (TSI) that uses a rate gyro for the purpose. The turn needle of the TSI indicates the yaw.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved
References in periodicals archive ?
Some airplanes, of course, may not have such an instrument, in which case the simplest, cheapest and perhaps most effective yaw indicator is a piece of string attached in front of the cockpit.