Quote:
Originally posted by PartsPeddler:
If the conveyor belt negates the forward movement of the aircraft you'll be unable to produce air speed for lift.

Without appropriate air speed an aircraft can not acheive enough lift to take off.

What am I missing?
You're missing that the belt can only spin the tires. It can not effect the motion of what the tires are attached to. Therefore it can not keep the plane from moving down the runway as originally scheduled, acheiving the lift it needs, and flying its merry little way to Vegas, feeling lucky 'cause he beat the odds...