Originally Posted by bokuda

On a visit to the Air Force Museum last summer I saw a placard in the aerodynamics section that said the curvature of a wing's airfoil causes lower pressure on the upper surface of a wing than the lower and the wing is "literally sucked upwards." I had quite a discussion with one of the docents who could not understand why I saw this as an error.

What do you think of this?

I was concerned because the Air Force should obviously be knowledgeable about aerodynamics and this sign is read every day by the public.