Bombing Navigation Computer Indicator ID-165/APA-44, of APQ-34 System C-46 The compass body rests in

The compass body rests in a vibration mount

used to indicate the vertical airspeed of the aircraft in a climb or descent

Assume that you are getting a bearing on a light house

but otherwise it is in fine condition for its age

Only 7 were ever built

Bombing Navigation Computer Indicator ID-165/APA-44, of APQ-34 System C-46 The compass body rests inThis is a rare example of the post WWII ID 165 indicator for the APA 44 electronic analog computer used in the APQ 24 bombing navigation system used in the US Air Force B 29 Superfortress. According to the USAF's Development of Airborne Armament 1910 1961, Volume I Bombing Systems: The development of the Western Electric Company APA 44 electronic analogue computer, however, was the key factor in Air Force attempts to equip modern bombers with a truly