"Doug" wrote in message
oups.com...
What is keeping the airplane's speed up with the conveyor belt? The
propeller. Said propeller moves air. Air causes lift. The problem is
more complicated than it seems to be at first read.

Another way to say it; it had better be a long conveyer belt, cause the prop
is pulling the plane forward, without caring how fast the wheels are going.
That will make the necessary airspeed to lift off.
--
Jim in NC