1U262-007-40, Model 4000HR-2 Sigma-Tek Directional Gyro, Air, Heading reference
The 4000HR air-driven directional gyro offers some of the best features of our other popular models. It inherited all of the functionality and reliability of the industry standard 4000B upon which it’s based, and it picked up a heading reference bug from the 4000C autopilot model.
Many pilots find the heading reminder a valuable feature whenever the cockpit is busy, such as during an approach with heavy ATC traffic. Setting a new heading during a long, cross-country flight eliminates the tedious math associated with frequent navigational crosschecks. A quick glance at the instrument instantly reminds the pilot of his heading. We can position the heading bug anywhere around the heading card by turning the right knob.
- Graduation marks are white per STI 8A015-002 on black background per 8A004-001.
- Aeroplane and also index markers are silk-screened on inside surface of the glass. Colour is Day-Glo ARC yellow (ie: orange).
- Heading reference bug and knob markings are Day-Glo Saturn yellow.
- FAA approved as conforming to TSO C5c requirements.
Depth: 7.06″ (max)
Also, Weight: 2.5 lbs. (max)
Markings: Matte white
Lastly, Finish: Flat black