Jay Honeck writes:

Thanks for the tips! I'd be interested to hear from folks who have
these
things -- do they hunt all over, or can that be damped?

I have a single axis autopilot (Navaid) in my homebuilt. I have it
hooked up to my Garmin 195 GPS or to my Narco 122A NAV (via a switch).
Tracking the GPS is rock solid - no hunting whatsoever. Tracking the
VOR is a roller coaster. I watch the CDI needle, and it's always
jumping around a bit, and the AP tries to follow it, even when it goes a
dot to the left, and then two seconds later, a dot to the right.

The problem is in the VOR, not the AP - if your VOR CDI needle is
jumping around a bit, so will the AP when trying to track it. If your
VOR needle stays stuck (no clue if this jumping is a function of MY
receiver or of the inaccuracy of the basic system), then you'd probably
be OK tracking with the AP.

If I track an ILS/LOC, which never jumps around on my CDI, the AP is
solid, so I know it's not the VOR/AP combination.

At any rate, if it's easy to connect, give it a try. If not, don't
bother, especially if your needle is jumpy.

--
Marc J. Zeitlin
http://marc.zeitlin.home.comcast.net/
http://www.cozybuilders.org/
Copyright (c) 2004