Manual, "Here's How - Operation of the C-1 Autopilot" C-54 The knobs are functioning but

The knobs are functioning but stiff

According to the USN ASO Catalog 8801 dated June 1953

The SAGE system was later interfaced with versions of the F-89 Scorpion

In the photo gallery

A-20 Havoc

Manual, "Here's How - Operation of the C-1 Autopilot" C-54 The knobs are functioning butThis is an authentic WWII era illustrated user guide for the C 1 Automatic Pilot System. The C 1 Autopilot system was used extensively in WWII era bomber aircraft of the US Army Air Forces, including the Boeing B 17 Flying Fortress, the Consolidated B 24 Liberator, and the Boeing B 29 Superfortress. It is in near mint condition. 22 pages, Measures 5. 5 inches by 8 inches.