Compass, Magnetic, Type B-14, Air Corps US Army, Pre-WWII Dinah Reconaissance

Compass, Magnetic, Type B-14, Air Corps US Army, Pre-WWII Dinah ReconaissanceThis is a example of a pre WWII era Magnetic Compass, Type B 14, made by Kollsman using its Poly Plane Compensator design. It was made for an order by the Air Corps US Army (as evidenced by the embossed AC US ARMY) in 1937 (further evidenced by the serial number prefix AC 37). It is an electrically lighted compass, with two small lamps intact, one each above and below the lens. The fluid is discolored and about 2 3rds level. But for an 80 year old

The receiver function tunes from 200-1750 kHz across 3 bands

evidence of a manufacturing year 1943

25 inches diameter by 6

40mA) Turn and Bank Indicator Type EZS-3 made by

so it may have been used in a twin-engine bomber such as the B-25

See image of technical description of the system

whose fuel quantities are indicated individually on their dedicated gages on the Engineer's panel

Here is a Direct Reading Magnetic Compass (Busola)

this indicator was used in the Avro Anson

Measures 2 inches diameter by ~2

The tachometer is definitely 'experienced' but is in reasonable condition given its age

It has a few small nicks from its service