Training Manual, Sperry Automatic Computing Gunsights Type K3, K4, K5 UC-43 self-propelled guns

self-propelled guns

which rotates the checklist around a vertical axis

made by the Pittsburgh Equitable Meter Company (which made gas meters

Here is an authentic WWI aeronautical compass with a very curious history

The indicator has a serial number prefix of "43" evidence of a year of manufacture of 1943

Training Manual, Sperry Automatic Computing Gunsights Type K3, K4, K5 UC-43 self-propelled gunsThis is an original WWII era training manual for the Sperry Automatic Computing Gunsights Types K3, K4, and K5 as used in bomber aircraft of the US Army Air Force and US Navy, such as the B 17 and B 24. Entitled 'Work Sheets', this manual was used in the training of armorers at the Armament Department at Lowry Field, Colorado. The K3, K4, and K5 gunsights were used in manned gun turrets. This 60 page manual describes the disassembly, adjustment,