Can this be answered???

[James Ellington]

Basic aerodynamics states that lift is created by thrust weight and drag, all of which contributes to air flow under and over the wings of the aircraft. The air flow under the wings increase air pressure and the airflow over the wing decrease allowing the aircraft to become airborne. Low wing aircraft create more lift by a cushion effect than high wing aircraft thus allowing them to rise into the air quicker and easier.
So, if the ground under the aircraft is the only thing moving and not the air, the aircraft should not get airborne, no lift. In actuality, the ground moving under and aircraft will 'drag' the aircraft backwards unless there is an equal force pushing it forward (thrust) or holding it in place. However, the movement of the ground creates air movement to some extent and thus can create some lift for the aircraft. But unless the aircraft is very light weight, like an ultra lite or hand glider, and has some sort of thrust, all that will happen is the nose gear will bounce up and down like it was in a 30knot head wind.
I laugh at the Myth Busters

[G-force]

You guys that think it wont take off need to stop thinking like a car. The wheels of an aircraft do not propell it like a car, the thrust from the propeller or jet make it move, not the wheels. The wheels are just along for the ride...they simply do whatever they want based on the speed diference between the aircraft and the ground. Again, the wheels have zero bearing on the plane achiving lift...thats a factor of the propeller or jet accelerating the plane through the air. It doesnt mater if there are wheels, skies, floats on water, or heck, a convayer belt, turning any direction or speed it wants. The plane is held in place by friction from the air (drag), the wheels just freewheel any darn way they please. In simple numbers, if you had a plane that lets say lifted off at 100 MPH, and you were on a convayer belt moving forward at 100mph, the wheels would not be turning. The forward speed of the plane and the belt are the same=no wheels turning. Now reverse the convayer belt, the plane is still being thrust forward 100mph by the propeller, the belt is moving rearwards at a 100 mph= the wheels are turning at a speed of 200 mph because the speed differential (100 forward and 100 backwards) equals 200mph. At any time in either scenerio, the convayer belt could stop, reverse, speed up or slow down...it wont effect the planes airspeed at all, only the speed and or directon the wheels are rotating. This is assuming there is zero friction in the wheel bearings, which there is not, there is a tiny amount, but that is not enough to matter in any of the above scenerios. Make sense?

[eamarquardt]

The airplane doesn't care if the ground is moving, a conveyor on the ground is moving, or whatever.  All that matters is the "flight path relative wind".  As long as there is movement of air over the wings the plane will fly.  The friction of the wheels is a verrrrrrrrrrry small factor in getting the airplane moving relative to the air.  I saw the Mythbuster's episode and it clearly demonstrated that the conveyor made no difference.I don't know everything, but I did learn enough to solo (and did in fact solo) a twin engine jet that could go 250 knots indicated, pull 4G's continously and maintain lever flight.  We did, however have to get up to 350 knots indicated to do a loop.  It was fun!.  Don't try these manuvers in a Cessna as you won't get very far.Now would anyone like to argue that a sailboat can't sail into the wind cause I have done that too.Hope this helps,Cheers,Gus