Altimeter, Sensitive, Type C-12, 50,000 ft, US Army Air Force WWII Royal Navy Above that limit

Above that limit

PB4 Privateer

was adopted by the RAF as the standard turret and free gun sight for their aircraft

It is ~ 3 inches thick in a USAF Publications hard binder and the contents are in very good condition given its age

The serial number prefix of 44 indicates a year of manufacture of 1944

Altimeter, Sensitive, Type C-12, 50,000 ft, US Army Air Force WWII Royal Navy Above that limitHere is an early WWII era Sensitive Altimeter, Air Corps US Army Type C 12, made by Kollsman. The C 12 Altimeter was used across all aircraft of the Air Corps US Army, including heavy bombers B 17 and B 24, medium bombers, B 25 and B 26, Fighters P 38, P 39, P 40, P 47, and P 51, and transports C 46 and C 47, according to the Maintenance Interchangeability Chart dated Dec 1943. The C 12 Sensitive Altimeter displayed altitude using 3 pointers. The