(Dean Wilkinson) wrote in
m:

My 4 year-old son got one of these from a friend... it does fly like
a rock. I didn't realize they were claiming it was supposed to be
aerodynamic, but it seems to be lacking the fundamentals of flight...

I like the section on "natural dynamic propulsion." True, the accelerated
air out the back "could be" considered a bit of thrust... if it weren't for
the force required to accelerate that air. This comes from the increased
pressure ahead of the duct inlet... or what is otherwise simply known as
DRAG!

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James M. Knox
TriSoft ph 512-385-0316
1109-A Shady Lane fax 512-366-4331
Austin, Tx 78721
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