An Artificial Horizon and Compass on the DC-3.
- On-Off indicator
- Heading Adjustment
- Pitch Adjustment
- Autopilot heading
- Aircraft Heading … same as DG heading
- AP On-Off switch
- Correction Control to synchronize DG with compass reading
- AP Pitch Reference Window
- Actual Aircraft Pitch
- Horizon Reference
- Attitude reference knob … adjust to show level flight
- AP Caging knob 12 … this knob locks the AP gyros so they won’t be
damaged in heavy turbulence. Notice that there is also a caging knob on
the Artificial Horizon on the main panel, for the same reason.
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