Instrument Flying, Advanced, Instructor Syllabus, USAAF WWII F-80 The third section describes various

The third section describes various gun turrets and their operation

The vacuum is generated by either a engine-powered vacuum pump or externally-mounted power venturi tube

Likely a bench instrument and not used in flight

including bombers B-17 Flying Fortress

Instrument Flying, Advanced, Instructor Syllabus, USAAF WWII F-80 The third section describes variousThis is an original WWII era Instructor Syllabus of the instruction manual for Advanced Instrument Flying, covering Radio Range and Radio Compass, TO 30 100B 2 dated March 1944. It is in very good condition given its age. It came to us from the estate of a B 17 flight instructor.