Sorry! I was being facetious.

If your not afraid to read some mathematics, take a look at "Low-Speed Aerodynamics" by Katz & Plotkin (Cambridge).

Some web resources...

Here's one decent explanation:
http://zardoz1.topcities.com/aviation/490476.htm

This next one is nice because it gives a bunch of explanations:
http://www.aerospaceweb.org/question...cs/q0005.shtml

Unfortunately, neither of the above cover symmetrical airfoils, but the previous post does!


Ken - www.litkoaero.com
R/C Aircraft Laser Cutting and Design