Gyro Flux Gate Compass System Operations and Service Instructions 1944 Smiths The center knob adjusts the

The center knob adjusts the indexing indicator for the view angle of the pilot

to the level detected in each tank

Once the aircraft reaches 5000 Meters

It appears to be New Old Stock as the red protective paper disc over the vacuum filter is still in place

This an original hard copy technical manual

Gyro Flux Gate Compass System Operations and Service Instructions 1944 Smiths The center knob adjusts theThis is an original WWII era manual of Operations and Service Instructions for the Gyro Flux Gate Compass System, dated 1944. The Gyro Flux Gate Compass System was used in aircraft of the US Army Air Force such as heavy bombers B 17, B 24, and B 29. The 7 component Flux Gate Compass system, a technological innovation of its day, was designed to provide accurate navigational guidance using the earth's magnetic forces by minimizing interference from the