"Jose" wrote in message
...
When I got up to the mouth of the bay, I turned around and followed
the bug back south. [...] my destination was 5,900 miles distant, and
the time to
get there was 84 hours.

When I got home, I scanned out and out on the map, to find that my
waypoint was now located in the Andes on the Argentinian side of the
Chile-Argentina border.

What happened?

What happened was precisely why I am so vocal about paper charts and
against reliance on this newfangled gizmo thang. (and horrified at the
thought of central computer control of airplane systems)

As a cub driver you are probably with me on this. I've had my home
airport move to the other side of the country several times. Dunno why.

I use a KLN 94, but when I input coordinates and waypoints, I always
crosscheck the distances and bearing with a chart to see if everything makes
sense. Computerized systems do what we tell them to do, which is not
necessarily what we want them to do .