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Ah, the pendanticality.
Nope, I don't blame them either, tone is indeed very hard over the net, everything sounds so freakin' angry.

What a cracking thread. 3 pages and people still disagree. Normally one side has won by now in this sort of riddle/question.

I say the plane will take off. Unlike a car, where power/force is provided to the wheels, the power of a plane is acting against the air. If a car is above the ground by 1mm, and it's wheels are spinning at 100mph, it won't move. A car is reliant on the ground to move. If the ground is moving against it at 100mph, it will be stationary.

However, if a plane is 1mm above the ground, and it's prop is providing 100mph of thrust, it will move at 100mph. It's forward thrust/power is independant of the speed of the ground. If the ground is moving at 100mph against it, it will provide a force against the direction of travel, but only equal to the friction imposed by it's counter-rotating wheels which are not attached to the drive train (like a car). This force is not affecting the planes method of thrust.

Here we go again...

[Edit] You can ignore this post (even if it is correct) because the 'Last Page' button took me to the end of page 2 when there were 3 pages. Didn't know this last page of replies was even here!

When you go running on a treadmill, propulsion is from your legs through the treadmill. As you go faster, it goes faster and you stay still.

A plane does not get it's propulsion through it's wheels (and therefore through the conveyor belt). It's propulsion comes from the thrust of the jet engines. And as we all know, the thrust provides forwards motion as an opposing force pushing against the air behind the plane.

So, the wheels are simply to prevent friction from reducing the thrust from the engines - and to prevent messy take-offs and landings!

So, the plane will absolutely, 100% certainly will move forward and eventually the airspeed will create lift... as has already been stated earlier in this thread.

TDK_Man