directional gyro


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directional gyro

[də′rek·shən·əl ′jī·rō]
(aerospace engineering)
A flight instrument incorporating a gyro that holds its position in azimuth and thus can be used as a directional reference. Also known as direction indicator.
(mechanics)
A two-degrees-of-freedom gyro with a provision for maintaining its spin axis approximately horizontal.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

directional gyro

directional gyroclick for a larger image
directional gyro
i. A two-degree-of-freedom gyro with a provision for maintaining its spin axis approximately horizontal.
ii. A flight instrument incorporating a gyro that holds its position in azimuth and thus can be used as a directional reference.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved
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As one who recently suffered the failure of my directional gyro and watched it spin wildly as it wound down, I wouldn't want to be distracted by those actions while, say, shooting an ILS to minimums.
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However [section]91.205 (d) specifies additional equipment required for IFR which we condense into the memory aid GRABCARD--generator, radios, alternator, ball, clock, attitude indicator, rate of turn indicator, directional gyro. Note that the clock is supposed to be built into the panel, not a wristwatch.
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Without a nav or GPS interface, think of the G5 simply as a digital directional gyro with heading reminder, plus there is a data field at the top of the display showing current heading.
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Place the paper clip on the face of the directional gyro with the tail on the holding radial.
Everyone's got a better hold

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