Originally Posted by
jantar99
The upper part of the tire moves at twice the speed of the AC, so yes, the debris can fly forward enough.
I'm terribly sorry but I don't follow;
if ground speed is 100knots, the tyre outer skin is rolling at exactly 100 knots against the tarmac.
if it would go faster or slower, you would be burning rubber.
If the tyre it self would be going faster than the AC, you'd have a bit of a rush to catch it.