Vertical Gyro Control, US Air Force Type E-4 Autopilot/A-12 Gyrosyn, 656518 F4U Corsair as used in B-17s (glass

as used in B-17s (glass cracked)

See the photo of the Sherman Tank with the driver's and assistant driver's hatches open

The WWII-era Radio Altitude Indicator

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

similar to those used in the US Navy's PBY-5A Catalina

Vertical Gyro Control, US Air Force Type E-4 Autopilot/A-12 Gyrosyn, 656518 F4U Corsair as used in B-17s (glassHere 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