Autopilot, Directional Gyro, Type A-3A, Jack & Heintz Halifax This PDI is in exceptional

This PDI is in exceptional condition for its age and could be new old stock

The compass consists primarily of a cylindrical metal bowl filled with compass fluid

Here is a WW2-era German Airspeed Indicator FI

Here is an Altimeter

Used to alter the Heading Index

Autopilot, Directional Gyro, Type A-3A, Jack & Heintz Halifax This PDI is in exceptionalHere is a WWII era Directional 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 Force. Would be connected with the Vertical Gyro module and the Speed Control Valves 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 (see images from B 25 flight