Smooth-
Angle of attack and Bernoulli are valid, no one is leaving those out. And I confess, I made a variety of statements in the other thread, some quite accurate and some pretty far from correct. Like air hitting the bottom of the airfoil or wing and deflecting down is innaccurate. But the idea in the same post about circulation was correct. I get rusty and have to refresh. The topic started because Ira Flato came on Science Friday and said the bottom of a wing has no effect or role in creating on lift, which is too innaccurate to tolerate. I felt the subject needed some review, and admit that I too need an occasional review.