[editor-surveyor]

"I am very familiar with Bernoulli’s Principle, but you are forgetting that the wing is a pump that is constantly displacing air equal to the weight of the plane in level flight"

Sorry LG, but the wing is not the pump. The engine is the pump, and the wing is a fixed passive reactor. Ultimately, the force of lift comes from the combustion chamber of the engine. (or in a glider, from the combustion chamber in the tow plane)

[LeGrande]

Sorry LG, but the wing is not the pump. The engine is the pump, and the wing is a fixed passive reactor. Ultimately, the force of lift comes from the combustion chamber of the engine. (or in a glider, from the combustion chamber in the tow plane)

LOL I think we are carrying this analogy a little too far : )

I am truly amazed at the power of the combustion chambers in the tow plane yesterday! I dropped off at the end of Heber's runway yesterday, probably 800' AGL and yet I managed to ride a wave to 30k. I think I will have to congratulate the designer of that perpetual motion machine, he single handedly has solved the energy crises : )