Autopilot Turn Controller for A-5 Auto Pilot System, Sperry ME-109 but is frozen in position

but is frozen in position in this specimen and may be able to be repaired

revealing the bulb and circuitry

The two sliding markers along the perimeter of the scale are marked E (for QFE) and F (for QFF)

5 inch thick manual contains a collection of training instructions from 1944 and 1945 for select systems of the B-29

fighters F-100 Super Sabre and F-86 Sabrejet

Autopilot Turn Controller for A-5 Auto Pilot System, Sperry ME-109 but is frozen in positionThe A 5 Automatic Pilot was used primarily in WWII era bomber aircraft of the Air Corps US Army such as the Consolidated B 24 Liberator (see photo of B 24 cockpit showing the location of the A 5 panel). The A 5 system appeared in aircraft manufactured during or before 1943, the year when the Honeywell C 1 system became the standard autopilot system for large multi engine aircraft. Theoretically, the A 5 system may also have appeared in the Boeing B 17