Directional Gyro Control, US Air Force Type E-4 Autopilot/A-12 Gyrosyn, 673447


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Current Price: 29.50 USD

Directional Gyro Control, US Air Force Type E-4 Autopilot/A-12 Gyrosyn, 673447

Directional Gyro Control, US Air Force Type E-4 Autopilot/A-12 Gyrosyn, 673447

Here 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 removed to reveal the gyro inside.  The gyro has apparently been worked on, and all components may not be present.  However, the gyro does spin when manually rotated. Note the appearance of some corrosion internally. Would make a very cool display.  See photos.  PDF copies of the A-12 manuals can be provided if desired.

Please note that seller does not represent that this specific instrument was actually removed from any aircraft cited in the description, but that any documentation referenced here is evidence that it is the same type number and/or manufacturer's part number, used in these aircraft, or if such numbers are not available, the item closely resembles photos of the aircraft's instrument panel. We do our best to link instruments to specific aircraft, but Buyer accepts responsibility to perform the research to verify the item's use in specific aircraft.

2BAnAviator is presenting vintage military aircraft instruments from the 1940's, 50's, 60's, and 70's, ready for casual or serious collectors interested in aviation history. Our inventory includes instruments from aircraft of the US Navy, US Army Air Corps (i.e., pre March 1942), US Army Air Force (March 1942 to Sept 1947) and the US Air Force (post Sept 1947). Watch 2BAnAviator for many more listings coming soon.

Note that items are sold for collectors. Unless otherwise specified, seller makes no representation of the item’s serviceability or fitness for use in an aircraft other than for static display.

Will ship once payment is processed. Please note that ex-US shipments have a handling fee due to the additional documentation required. Payment within 2 days of winning bid is appreciated. Thanks for looking


Directional Gyro Control, US Air Force Type E-4 Autopilot/A-12 Gyrosyn, 673447 Directional Gyro Control, US Air Force Type E-4 Autopilot/A-12 Gyrosyn, 673447 Directional Gyro Control, US Air Force Type E-4 Autopilot/A-12 Gyrosyn, 673447
Directional Gyro Control, US Air Force Type E-4 Autopilot/A-12 Gyrosyn, 673447 Directional Gyro Control, US Air Force Type E-4 Autopilot/A-12 Gyrosyn, 673447 Directional Gyro Control, US Air Force Type E-4 Autopilot/A-12 Gyrosyn, 673447
Directional Gyro Control, US Air Force Type E-4 Autopilot/A-12 Gyrosyn, 673447 Directional Gyro Control, US Air Force Type E-4 Autopilot/A-12 Gyrosyn, 673447 Directional Gyro Control, US Air Force Type E-4 Autopilot/A-12 Gyrosyn, 673447
Directional Gyro Control, US Air Force Type E-4 Autopilot/A-12 Gyrosyn, 673447 Directional Gyro Control, US Air Force Type E-4 Autopilot/A-12 Gyrosyn, 673447


Click here to purchase or contact the seller of this item on eBay