Altimeter, Sensitive, Type C-12, 50,000 ft, US Army Air Force WWII A-26

Altimeter, Sensitive, Type C-12, 50,000 ft, US Army Air Force WWII A-26Here is an early WWII era Sensitive Altimeter, Air Corps US Army Type C 12, made by Conn. 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 first

trainer T-33

and ordnance terminal velocity

Reference numbers for pilot compasses began with "P") to take navigational bearings in situations where a fixed compass could not be used

When in use

This is an authentic original (not a reproduction or CD) of the B-29 Superfortress Erection and Maintenance Manual dated Nov 1944

dated June 1952

Courter Instruments EGU-2/A

The aluminum semi-circle plate in the center is marked in minutes

The first ~200 pages describe various aspects of air services

there are not many

It has a screw-type heeling compensator

The battery ammeter indicates the current flow through the battery charging system