gyro topple

gyro topple

gyro topple
A phenomenon in which the gyro axes precess at random, giving erratic indications following the gyro's locking once the gimbals come against a mechanical stop. The gyro must be caged and re-erected in a straight and level flight for the gyro instrument to give correct indications. Also called gyro tumble.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved
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