How about a contest?
We have had the local police stop by and radar our combat planes. Their guns are more sensetive than the under $100 versions. We have tried a cheap one or two and they can't seem to pick up the small planes.
The only reason I mentioned the police, or sherriff or state cop for that matter, was to get an objective third party involved. Might eliminate some creative cheating.
I would agree that most planes probably go slower than what we think they are doing.
Last time I was at a drag strip they where using electronic timing, light beams and reflectors.
Anyway, do you all think its possible?