"Dale" wrote in message
...
In article ,
"Bill Denton" wrote:

Everybody talking about "looking at the wings" needs to rethink their
advice.

You can see an entire airplane much farther away than you can
distinguish
the wings.

If he's so far away that you can't determine what he's doing it's likely
the other traffic isn't a factor...at least not at the speeds of most GA
aircraft.

Rely on relative motion. If the dot isn't moving relative to your
viewpoint, you're on a collision course.


Not necessarily. The dot could be moving directly away from you.