PBY Catalina Erection and Maintenance Manual Jan 1941 B-24 and night fighter P-61 Black

and night fighter P-61 Black Widow used this indicator

as used in  aircraft of the US Army Air Force and US Navy with tail wheel or nose wheel landing gear

The interesting aspect of the design of this compass is that the directional mechanism lies horizontally within the rear chamber

part number 646050 to AN-5735-1 spec

This was also used in versions of the trainer T-33

PBY Catalina Erection and Maintenance Manual Jan 1941 B-24 and night fighter P-61 BlackThis is an authentic original (not reproduction or CD) PBY Catalina Catalina 1 Erection and Maintenance Manual dated January 1941, as published by the British Air Ministry and the Consolidated Aircraft Corporation. This 235 page manual contains information on aircraft structure, systems, operation, and maintenance of the PBY flying boat. It is full of procedures, lists, diagrams, charts, and illustrations regarding the details of the aircraft. It is