John J Szobocsan

I agree with your points in your post but I was careful to make note of my post being a brief explanation. If I were to add all the details including pressure gradients, center of pressure locations and other important points the post would become a textbook on aerodynamics. I have neither the time nor the inclination to do that. I made a simplification but I think that getting the basic concepts across are more important than adding all the detail. Airplanes do not fly because of the Bernoulli principle. However the large radius of the Audi TT's tail causes air to flow around the curvature before separating. This causes more lift than when the separation point occurs at a point before the air meets the radius of the tail.

A simple demostration is to hold a spoon, bowl side out, against a stream of water from a facuet. If the spoon is held lightly, spoon will be pulled into the steam.

Cordially,

John J. Szobocsan

John J Szobocsan

Oh, by the way the wayward racecars at Le Mans were Mercedes-Benz CLK-GTRs not BMWs.