Aircraft compass with black metal casing. label with "Directional Gyro Indicator" in black coloured square shape, glass dial with swing moving figures `20329'. Has written on the front, "Directional Gyro, Jack & Heintz Inc, Bedford, Ohio, U.S.A"
The Directional Gyro is a gyroscopic navigation instrument designed to provide the pilot with a constant directional reference that is not subject to characteristics of a magnetic compass that cause errors. The vacuum type is operated by the air flow gene
|Dimensions||H-11 W-14 L-12 cm|