I have an aircraft certified only to use Chelton AP-3C. If any of you plan to upgrade your unit to a modern autopilot, please consider selling my your old Chelton AP-3C. Chelton AP-3C autopilot was a well-designed unit and was way ahead of its time but it has been discontinued after a merger between S-Tec and Chelton.
Looking for an used Chelton AP-3C autopilot
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