Vertical Gyro Control, US Air Force Type E-4 Autopilot/A-12 Gyrosyn, 656518 F4U Corsair as documented in the F-86F

as documented in the F-86F Maintenance Manual dated Sept 1954 (see photo of page from this manual showing the instrument and the AN #)

as used in B-17s (glass cracked)

It was used in conjunction with suitable beacons for night landing of parachute troops

It is in very nice condition given its age

Vertical Gyro Control, US Air Force Type E-4 Autopilot/A-12 Gyrosyn, 656518 F4U Corsair as documented in the F-86FHere is a Vertical Gyro Control of the Sperry A 12 Gyrosyn Automatic Pilot, known in the US Air Force as the Type E 4 autopilot system during the late 1940's and 1950's. The Sperry part number is 656518 and labeled for a Boeing aircraft specification. When electrically powered and in flight, the gyro produced vertical attitude signals which were amplified and transmitted to the autopilot system and indicators on the flight deck of the aircraft. The