Autopilot Turn Controller for A-5 Auto Pilot System, Sperry ME-109 likely when they were removed

likely when they were removed from the aircraft

This is a fine example of a Cold War-era Mach Speed Indicator Mk 3A Ref 6A/3300

"The N-6 was the first of the N- series to be specifically designed for flexible gunnery for use in turrets not equipped with compensated sights

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

Autopilot Turn Controller for A-5 Auto Pilot System, Sperry ME-109 likely when they were removedThe 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