I just heard Ira Flato, the big science guy who does NPR's Science Friday series claim that aircraft wings do nothing on the bottom side as far as lift is concerned and it all comes fom the top side. Brilliant! I can't believe it, next week he will say the earth is flat. And this is coming from NPR of all places. He said that engines and armaments like rockets are mounted on the underside of wings because nothing much goes on under aerodynamically, and it's a great place to put stuff. I think someone should offer to put him under there and go flying. No wonder the public is so dense about aviation.