Matt Whiting wrote in news:Fj%ng.29$Pa.4943
Then how do you explain how well a simple flat disk such as a CD will
fly? It certainly has no airfoil shape.

Skywise wrote:
They don't. At least none of the CD's that I've ever thrown went
very far. They all roll immediately and change direction.

I agree, CD's fly about as well as a crumpled up piece of paper. You
can throw them across the room, but they're not really flying due to
lift. Spinning the CD just keeps it somewhat stable, but I don't think
it generates any lift. I think throwing a CD vertically will go about
the same distance as throwing a CD horizontally.