here, this is what a guy on anti-rice posted. He gets it.
Quote:
Agreed, the plane would take off. The airspeed of the plane has no relation on the speed of the wheels, who cares how fast they are moving. The speed of the wheels and the thrust coming from the turbines is independent. There is no relation to how fast the plane is moving through the air and how fast the wheels are moving. Here is how it would happen...
At first when the engines were starting to spool up and the plane was just crawling the conveyor would keep it in place. The natural friction of the wheels against the ground and moving parts/bearings would be enough to make it keep pace with the system. Very soon though the thrust from the engines would overtake the friction against the wheels, no matter how fast they were spinning, and the plane would begin to move forward. Its very simple.
If a plane were flying in air and the wheels were spinning 100,000 rpm in the opposite direction do you think it would have any effect on the airspeed? This is effectively the same thing. Imagine if the belt wasn't even there, because the speed of the wheels is irrelevant to the speed of the plane...
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