Autopilot Turn Controller for A-5 Auto Pilot System, Sperry ME-109 I have also confirmed its

I have also confirmed its use in the P-2E by its parts manual dated 1966

400 cycles

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

and the PBY5A Catalina Seaplane (which used 2)

Autopilot Turn Controller for A-5 Auto Pilot System, Sperry ME-109 I have also confirmed itsThe 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