Gyro Flux Gate Compass System Operations and Service Instructions 1944 Smiths Based upon information from a

Based upon information from a warbird fan in Spain

This an original hard copy technical manual

B-25 Mitchell bombers

The only apparent defect is the missing tuning crank (see center axis upon which it would mount)

Gyro Flux Gate Compass System Operations and Service Instructions 1944 Smiths Based upon information from aThis 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