# Physics Question **URL:** \ **Category:** SON240sx Automotive\ **Created:** [December 22, 2006, 7:23am UTC](https://forums.speedlife.net/t/physics-question/102635 "2006-12-22T07:23:38Z")\ **Posts on this page:** 1\ **Showing post:** 150
**Author:** ![krgoodwin](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/krgoodwin/32/5559_2.png) [@krgoodwin](https://forums.speedlife.net/u/krgoodwin)\ **Post date:** [December 28, 2006, 12:03pm UTC](https://forums.speedlife.net/t/physics-question/102635/150 "2006-12-28T12:03:45Z")
> [@Now I've been hit pretty hard before](https://forums.speedlife.net/t/now-ive-been-hit-pretty-hard-before/10748/2): > > That’s what your basic mistake is. You’re assuming the plane will not create any lift. I was thinking the same thing until I stopped to think about it. It will, just as much as normally. The treadmill does not affect the normal operation of the airplane in the slightest. Plane ignores treadmill, speeds down treadmill/runway odd contraption, since it doesn’t use shaftwork transmitted to wheels, but thrust, and it generates lift as it normally would, and takes off as it normally would. well yes, thats all well and good but. lift is created by the plane moving forward. the whole point of the treadmill is for the plane to stand still. lift is created by air moving past the wings. i mentioned before that you theoreticly could create lift by plancing very large engines infront of the wings. so the engines would push air over the wings and create lift. then the plane would fly. but you would need very large engines and they would most likely melt or tear apart the wings, so its basicly a physical imposibililty to create such a plane. propeller planes excluded since they cannt create enough thrust. the bottom line is the plane needs to be moving forward to create lift. the whole point of this experiment is to keep the plane still. without air moving past the wings there is no lift and in turn there is no takeoff. Solarian: how does the plane generate lift as it normaly would? --- _[View the full topic](https://forums.speedlife.net/t/physics-question/102635)._