"Peter" wrote in message
...

"Doug" wrote:

Let us say you are approaching a waypoint headed due west. You push
direct to and have a course line to the waypoint. Now let us say thay
you move to the south by 1/2 mile. The waypoint is to your right
(north). The CDI reads to the right as it should. Your GPS says your
waypoint is 1/2 mile right. Now you DO A 180 DEGREE turn (to the south
so you are still south of the waypoint. Your CDI still says it is to
the right, indicating it is to the SOUTH!.

Which, presumably, why an HSI is better because one can see at a
glance that the course pointer is pointing the opposite way to one's
heading, so one can clearly see the deflection of the bar is not in
the correct direction.

How does the 480 correct for this? To do anything, it needs to be
aware of the aircraft heading. Does it have a heading input?


It could just use track.

Mike
MU-2