Tachometer, Chronometric, Type C-11, WWII Air Force US Army Japanese This one has a serial

This one has a serial number prefix of AF-45

Loop Antenna AS-

and trainers AT-7 and AT-11

This is a matched set of dual engine Torque Pressure / BMEP Indicators

Tachometer, Chronometric, Type C-11, WWII Air Force US Army Japanese This one has a serialHere is an example of the WWII era Chronometric (i. e. mechanical) Tachometer, Type 11, as used by single engine aircraft of the Air Force US Army. According to the US Army Air Force Maintenance Interchangeability Chart dated Feb 1945, the C 11 tachometer was used in fighters P 40 Warhawk (E N), early versions of the P 47 Thunderbolt, and P 51 Mustang, dive bombers A 35 Vengeance and A 36 Apache, and transports UC 61 and UC 64A. This tachometer has a