"pgbnh" wrote :
My partner and I have decided it is time to upgrade the old 'wing-leveller'
autopilot (Century I) to a real autopilot. We will likely be looking for
either 2 or 3 axis (altitude would be nice, but we need to factor in cost)

Few APs are 3-axis (pitch, roll and yaw).

and will couple it to the Garmin 530. AP to be installed in a Beech Sierra

So, some questions:
What is your favorite AP

S-Tec

Thoughts on 2 v 3 axis

I think you mean 1 (roll only) vs. 2 (roll & pitch). Definitely go for 2.

Features to look for

GPSS, altitude hold.

Altitude preselect & glideslope capture cost a lot more but are very nice to
have.

Brands to avoid

The only real choice nowdays is S-Tec.

--
Dan
T-182T at BFM