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Sigma Tek 4000C Directional Gyro

  • Model Number: 4000C-15 (S3330-2)
  • Manufactured by Sigma Tek for Cessna Singles Bendix King Autopilots.

 

Includes:

  • Sigma Tek 4000C/52D54 Directional Gyro, Air, Autopilot, CFS Outputs, Unit only.
  • Lighting bar can be purchased separately.

 

Please contact us for more information.

 

Product Photographs Disclaimer: Stock photographs do not show the actual product for sale. While Pacific Avionics makes its best effort to ensure all products are of good repair, photos of the item for sale are available on request.

Available Options

Part NumberDescriptionConditionPriceAvailabilityStockOrder Qty 
1U262-042-2Sigma Tek 4000C Directional GyroSVC$1,995.00In stock1
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IN-HOUSE INSTALLS AND MAINTENANCE

Serial Number: T49847B In Stock    

  • Product Condition: Serviceable when removed (AR)
  • ARC Provided: No
  • Notes: This unit has been removed serviceable from the aircraft and it was in working condition at that time. For sale is the unit only. Please contact us if you require any further details or assistance sourcing similar parts.
Serial Number: T58502E In Stock    

  • Product Condition: Serviceable (SVC)
  • ARC Provided: Yes - Casa Form 1
  • Notes: This unit has been tested and released serviceable by our instrument workshop. For sale is the unit only. Please contact us if you require any further details or assistance sourcing similar parts.

 

The 4000C/D is an air-driven directional gyro with A.C. autopilot pickoffs. Left turns produce clockwise dial rotation and right turns produce counter-clockwise rotation. Two knobs control the gyro. The left knob is used to cage the unit, and the right knob is used to select the instrument’s heading.

To change course, the right selector knob is pressed and turned to disengage the dial shaft and set the pointer to a new heading. Releasing the selector knob re-engages the pointer with the dial shaft. As the aircraft turns onto a new course, the pointer returns to its original position. The on-course position of the pointer is always at the top of the azimuth circle (0° on the dial with the aircraft headed north).

  • Sigma Tek 4000C/52D54 Directional Gyro, Air, Autopilot, Century Flight System Outputs, Unit only.
  • P/N: 1U262-042-2 (S3330-2) – Tested serviceable, As removed.
  • No connector or fittings supplied.

All used avionics sold by Pacific Avionics comes with 90 days warranty. For more information, please visit our Terms & Conditions page.

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Serial Number: T49847B In Stock    

  • Product Condition: Serviceable when removed (AR)
  • ARC Provided: No
  • Notes: This unit has been removed serviceable from the aircraft and it was in working condition at that time. For sale is the unit only. Please contact us if you require any further details or assistance sourcing similar parts.
Serial Number: T58502E In Stock    

  • Product Condition: Serviceable (SVC)
  • ARC Provided: Yes – Casa Form 1
  • Notes: This unit has been tested and released serviceable by our instrument workshop. For sale is the unit only. Please contact us if you require any further details or assistance sourcing similar parts.

 

The 4000C/D is an air-driven directional gyro with A.C. autopilot pickoffs. Left turns produce clockwise dial rotation and right turns produce counter-clockwise rotation. Two knobs control the gyro. The left knob is used to cage the unit, and the right knob is used to select the instrument’s heading.

To change course, the right selector knob is pressed and turned to disengage the dial shaft and set the pointer to a new heading. Releasing the selector knob re-engages the pointer with the dial shaft. As the aircraft turns onto a new course, the pointer returns to its original position. The on-course position of the pointer is always at the top of the azimuth circle (0° on the dial with the aircraft headed north).