(Doug) wrote in message . com...
Autopilot failure modes are a bit of a mystery, but I can tell you
from first hand experience, some failure modes would be very bad
indeed. One absolutely needs to keep an eye on the gyros the autopilot
DOES NOT use and turn the autopilot off if there is disagreement.

Mine once turned the yoke full right to the stops and rolled us into a
steep turn until I was able to grab it and right the craft. I was
following a VOR and the VOR went out of range. However, that isn't
what the autopilot is suppose to do in that situation.

-Robert