"Dean Wilkinson" wrote in message ...
Its called parallax. Your motion, the motion of the plane, and the
background were in the right configuration so that the parallax made the
plane appear to be stationary when in fact it was not...

Are you sure? Parallax is when you try to show a student how to make a
coordinated turn and you end up with the ball out to the left because
you aren't looking at the turn coordinator straight on.

-Robert, CFI