Altimeter, Mk XIIIB, 0-20,000ft, British Royal Air Force A-30

Altimeter, Mk XIIIB, 0-20,000ft, British Royal Air Force A-30Here is a British Altimeter (Height Indicator) Mk XIIIB as used in pre WW2 aircraft as well as aircraft during WW2, with a maximum ceiling of 20,000ft. It has the original crown symbol of the Air Ministry on the back. The knob rotates the face of the instrument to correct the scale. According to the Royal Australian Air Force 346 Types and Locations of Instruments dated 1945, this indicator was used in the Avro Anson, Supermarine Seagull V, and Short

not gallons

We've been told that this was used in a version of the F4F Wildcat fighter

California) dated 06 Jan 1964

according to an attached tag dated May 5

Used across many versions of US Army Air Force aircraft with navigator crew during the era

The {Gentex} H-4 was a further development of H-3

or for that B-50 that you are building in your garage

The dial measures 2

It is in reasonable condition given its age

This is a rare opportunity to own an instrument that was in all likelihood made specifically for the largest piston-engined aircraft ever mass-produced

It is very similar to I-65 compass indicators used in aircraft of the Air Corps US Army during WW2 (the primary difference in appearance being the centerpoint of direction

This case of this indicator is not affixed