Quote:
Originally Posted by Donger
Because it is not an accurate test of the theory, as I said earlier. If the plane's wheels are not locked and free to spin, the treadmill underneath the plane would simply spin the plane's wheels and the plane would not move forward at all. If the plane is not moving forward (that's how planes generate enough speed to move enough air over the wings to produce lift), the plane will not take-off.
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Haven't read this whole thread yet so this may have already been stated, but a vertical takeoff plane would also be able to take off. I forget what they are called.