| Model | Sigma-Tek 4000B-30 Directional Gyro 1U262-001-39 |
|---|---|
| Condition | Used |
| Location | Houston , US |
| Date Listed | Aug 25, 2026 |
| Expires | Sep 24, 2026 |
Description
The Sigma-Tek 4000B series is an air-driven directional gyro used to provide aircraft heading reference. The heading card rotates in response to aircraft turns and can be manually reset using the front-mounted push/turn heading selector knob.
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