Want to purchase a S-Tec 55X Autopilot

[n86121]

What are the autopilot upgrade/replacement suggestions....?

I still have a Nav-O-Matic 400B. Amazing to realize that was the state of the art tech that went to the moon in 1969. I have just nursed it along.

As a practical matter, the 337 is so stable it never use it. If I do, the only functions used are altitude and heading hold. Just turn the heading knob until the little arrow on my GPS points to my next fix (usually destination), then HOLD. Done.


What have people installed recently? Any new ones? Installed price ballpark?