Control Unit C-4, of ARN-7 Automatic Radio Compass, B-17, B-24, B-29 Nick Fighter The indicator measures ~3

The indicator measures ~3

using an A-6 cartridge containing 50 feet of 16mm film and a 35mm lens

and emergency conditions

The subject of this 10 page report is New Japanese Navy Fight Jack II

but not the Royal Air Force since it didn't come into existence until 1918)

Control Unit C-4, of ARN-7 Automatic Radio Compass, B-17, B-24, B-29 Nick Fighter The indicator measures ~3Here is a WWII era Control Unit for the ARN 7 Automatic Radio Compass system used for direction finding and homing. The receiver function tunes from 100 1750 kHz across 4 bands, which were selected by rotating the center knob below the frequency band window. The center knob rotates a flexible shaft connected to a rotatable loop antenna. The ARN 7 system (see diagram), were one of several generations of radio navigational systems installed in an