Gyro-Horizon G6A/3182 643720-R

Used on RAAF aircraft in WWII.

The gyro-horizon, a device which created for pilots an artificial horizon so that the orientation of an aircraft with respect to the earth's horizon could be indicated accurately without the earth's horizon being visible. Like the directional gyro it consisted of a spinning wheel (15,000 revolutions a minute) supported by gimbals, but it was also fitted with a pendulum and vanes which automatically corrected any drift error caused by friction in the bearings.

Made by AWA under license to Sperry Corp.

Installed on the following Aircraft during WW2;

Airacobra P39D
B25 NA 62
Beaufort
Boomerang CA12
Boston 111A A20C
CA-17
Catalina P.B.Y.
Kittyhawk P40AM
Kittyhawk P40N
Liberator D
Liberator JL
Lightning P38D
Lodestar C60
Martin Mariner PBM
Norseman UG64
Sikorsky 052U
Vengeance A35
Ventura B34
Ventura PV1
Wackett Trainer
Wirraway
 

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Elenco delle radio e altri apparecchi della Amalgamated Wireless (Australasia) Ltd. (AWA); Sydney