Here is my take:

Just imagine you are trying to cycle a normal bicycle (fitted with real aeronautical wings and tail) across the length of the runway. Suddenly, the runway starts moving against your direction under your wheels faster and faster until your bicycle is no longer achieving any physical distance no matter how much harder and faster you are paddling. The wheels of your bicycle is now spinning very fast as you paddle harder and harder, but you are not moving forward at all.

What can you do now to make your bicycle move forward???

Well, the solution is as simple as that;

Just turn on your twin turbo-prob engines fitted under both wings and watch the propellers spin faster and faster. Very soon, (provided you continue paddling at the same rate), your bicycle would start moving forward as usual (regardless of the conveyor-belt runway moving rapidly against your direction under your wheels).

Increase the speed of the twin turbo-probes engines (to take off) and your bicycle would accelerate forward as usual and gradually get faster and faster until you take off successfully.

The only difference here is that the wheels of your bicycle were spinning much faster than usual during the process of taking off; as the twin turbo-probe engines propelled you forward regardless of the conveyor belt moving rapidly against your direction under your wheels.

But what about a plane coming in to land on a conveyor-belt that is moving rapidly against the direction of the incoming plane???

This post has been edited by Benjamin911: Aug 7 2009, 11:25 PM