The exact response depends on the autopilot system Some digital autopilots
(I think like the KFC 225 or KAP 150) will respond to the course changes
provided by the Garmin flight plan, do hold entries, etc.

On the other hand, the analog systems (Like the KFC200) require either roll
steering, or manual input of either the heading in heading mode (via the
heading bug), or course input via the course indicator (in nav mode).

I have an analog system, and am thinking about adding roll steering, which
would be particularly useful in flying DME arcs and holds, etc, and
especially in tracking the 90 degree turn in GPS approaches (which NAV mode
doesn't do every well).


"Sam Spade" wrote in message
...
wan2fly99 wrote:
On Nov 24, 10:09 pm, "Viperdoc" wrote:

This is correct unless you have either a digital autopilot or roll
steering
installed in the plane.

Otherwise, each course change needs to be entered by the heading bug (in
heading mode), or the NAV pointer in nav mode on an HSI.




The auto has a heading mode and Nav mode

So even though the GPS is selected we actually have to steer it by
heading mode? Auto won't follow the course on the GPS?

Like the other poster said, the auto-pilot has to be capable of roll
steering, rather than CDI steering.