Altimeter, Sensitive, Type C-14, 35,000 ft, Air Corps US Army WWII B-17, B-24, P-38, P-51 Wellington The Air Force US Army

The Air Force US Army was the predecessor to the US Air Force

I are fitted in the pilots' panels

The core of this instrument is loose within the case

although they typically attempted to dive as steep as 90deg

Here are two types of aircraft Pelorus Drift Sight

Altimeter, Sensitive, Type C-14, 35,000 ft, Air Corps US Army WWII B-17, B-24, P-38, P-51 Wellington The Air Force US ArmyHere is an early WWII era Sensitive Altimeter, Air Corps US Army Type C 14 (also AN 5761 1), made by Bendix, part number 1555 2J A. The C 14 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. AC US ARMY is embossed on its face.