View Single Post
Old 03-05-2006, 04:09 PM
David Simmons David Simmons is offline
Charter Member
Join Date: Nov 2001
Posts: 12,684
Originally Posted by enipla
I went way way back to the original question. Before Cecil addressed it.

I was wrong about the ‘plane speed/wheel speed’ thing. The original question states wheel speed.

I think someone in that thread showed that it is impossible for the treadmill to match the wheel speed unless everything was at a full stop.
I'm quite sure the last statement is true. The wheel speed is always the aircraft speed plus the conveyer speed so unless the plane's speed is zero the conveyor and wheel can't have the same speed. it appears to be an unstable system. In order for the conveyer belt to move, the plane has to move. Once the plane moves in the slightest then the conveyer rapidly accelerates to its limiting speed, or to destruction whichever occurs first.