Autopilot, Vertical Gyro, Type A-3A, Jack & Heintz F-80 but otherwise the case is

but otherwise the case is in very good condition given its age

and would be filled with sand or water

which is engaged by turning a small knob on the side

This example is in very good condition for its age

Autopilot, Vertical Gyro, Type A-3A, Jack & Heintz F-80 but otherwise the case isWW2 vintage Vertical Gyro module of the Type A 3A Automatic Pilot system, made by Jack & Heintz, with a serial # prefix of 42, indicating a manufacturing date of 1942, for the US Army Air Corps. Would be connected with the Directional Gyro module and the Speed Control Valve module of the same system and installed on the flight control panel. The A 3A autopilot was used in bombers B 24C Liberator, B 25C,D,G Mitchell, fighter P 61 Black Widow, and