Autopilot Turn Controller for A-5 Auto Pilot System, Sperry ME-109 The two sliding markers along

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

revealing the bulb and circuitry

fighters F-100 Super Sabre and F-86 Sabrejet

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

Autopilot Turn Controller for A-5 Auto Pilot System, Sperry ME-109 The two sliding markers alongThe 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