Compass, Aperiodic, US Army Air Force Type D-12 BT-13 but remains in decent condition

but remains in decent condition

000s lbs on the outer scale

so it is possible that the rear housing was replaced using that from a Fl 22230 as they would have been interchangeable

This indicator measured the fuel quantity in the protected tanks in the left and right wing tank (each holding 105 gals)

The metal clearly shows the effects of climate and age

Compass, Aperiodic, US Army Air Force Type D-12 BT-13 but remains in decent conditionThe US Army Air Force Type D 12 Direct Reading Aperiodic Compass was used at the navigators station across many US WWII aircraft, including heavy bombers B 17, B 24, B 29, medium bombers B 25 and B 26, and transports C 46, C 47, and C 54. Made by Bendix, part number 1833 1 A, it has a serial number prefix of AF 42, indicative of a manufacturing year 1942. Later versions had a bakelite cover surrounding the 'legs'. The navigators' direct reading