Directional Gyro Control, USAF Type E-4 Autopilot/A-12 Gyrosyn, 673447 & Clear Cover Lily Bomber At almost 200 pages

At almost 200 pages

Grumman aircraft after these

This indicator is stamped with the US Navy anchor symbol

This stock number was used in the US Navy's Grumman F8F Bearcat fighter

Directional Gyro Control, USAF Type E-4 Autopilot/A-12 Gyrosyn, 673447 & Clear Cover Lily Bomber At almost 200 pagesHere is a Directional 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 USAF type is S3A, and the Sperry part number is 673447. When electrically powered and in flight, the gyro produced directional indication signals which were amplified and transmitted to the autopilot system and indicators on the flight deck of the aircraft. The cover can be