heading indicator

(redirected from Directional gyro)
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heading indicator

An instrument which displays heading transmitted electrically from a remote compass system.
Dictionary of Military and Associated Terms. US Department of Defense 2005.
References in periodicals archive ?
You'll need to correct for some gyro precession by slewing the system to the proper heading, just as you would with a conventional directional gyro. When the system is showing a heading error, is the heading flag in view?
(NASDAQ: GRMN), has announced the approval of the G5 electronic flight instrument for installation as a replacement directional gyro (DG) or horizontal situation indicator (HSI) in type-certificated fixed-wing general aviation aircraft, the company said.
We were still IMC, had unreliable radios and appeared to have lost our directional gyro. I thought we should declare an emergency, and my students agreed.
Additionally, the system enables directional gyro mode operation, which minimizes magnetic compass errors.
Two of these navigational aids are the Gyro Horizon Indicator and the Directional Gyro Indicator, designed by Sperry and built by Sperry and Fisher Body.
Many Natoma-machined parts for commercial aircraft end up in assemblies for directional gyro systems, radar units, and flat-screen integrated cockpit panel instrumentation.
The directional gyro, which has a horizontal spin axis, measures yaw rate.
This device supplies the energy to spin vacuum-driven primary flight instruments, typically the artificial horizon and directional gyro of a so-called "steam gauge" airplane.
Aspen calls the E5 a Dual EFI (electronic flight instrument) because it's really a dual instrument, replacing the traditional mechanical attitude indicator and directional gyro in one split display.
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