15 Nov '07 15:36>
Originally posted by Sam The ShamThis is an old puzzle and there have been a zillion threads exactly like this. I think someone came up with a formula for how threads on this topic would go which is pretty accurate.
Airplane ain't pushing on any air if it ain't moving through it. It won't take off. For the wings to provide lift it must have velocity relative to the air mass around it. It's so obvious. Engines provide THRUST, not lift. (Well, they do provide a little lift from the air they move over the wings, but it's infinitesimal) The air moving across the wing s ...[text shortened]... ent to full power before the plane started moving.
And the question is poorly worded.
This thread shows that I once thought like you but it turns out I was wrong.
http://www.playtheimmortalgame.com/board/showthread.php?threadid=54537&page=2