Gyro Transmitter, AN5751-1, Flux Gate Compass System F8F 25 inches diameter and ~10

25 inches diameter and ~10 inches deep

is mounted on a stalk

thru which the bottom stem would protrude

according to archival documents

This Radio Compass Indicator is labeled for use in the WWII-era Air Corps US Army's C-3 Link Trainer

Gyro Transmitter, AN5751-1, Flux Gate Compass System F8F 25 inches diameter and ~10The Gyro Transmitter AN5751 1 was an integral component of the WWII era Bendix Gyro Flux Gate Compass System used in aircraft such as the B 17, B 24, and B 29. The 7 component Flux Gate Compass system was designed to provide accurate navigational guidance using the earth's magnetic forces by minimizing interference from the systems of the aircraft, such as its turrets, guns, and engines. A flux gate gyro transmitter typically located within the wing