WWII Gyro Stabilized Flux Gate Compass System Manual AN 05-15-16 1944 Restricted USAAF T-shirts NPM achieved high performance ratings

NPM achieved high performance ratings in military adverse-conditions testing

Air Force Technical Order: TO 31P6-2TPS1-214

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excellent overall condition

WWII Gyro Stabilized Flux Gate Compass System Manual AN 05-15-16 1944 Restricted USAAF T-shirts NPM achieved high performance ratingsOriginal World War II U. S. Army Air Forces Handbook of Operation and Service Instructions for the Gyro Stabilized Flux Gate Compass System, Technical Manual AN 05 15 16. This original Restricted publication is dated 15 April 1944 with a 20 May 1944 revision, housed in its original blue military loose leaf binder. Flux gate compass systems were among the most advanced aircraft navigation technologies of WWII, providing highly accurate heading