I own a 1982 182R with equipped from cessna autopilot, my plane has a 430W with GPSS role steering, all IFR certified. Anyone have personal knowledge of the options available to me to add altitude hold to the standard cessna autopilot of the time.
S-Tec has a system for adding altitude hold. As usual, it has many "add ons" that you may want to consider. Are you looking for electric trim, or altitude pre-select?
