drkohler said:
Come to think of this while typing, I actually remember a mythbuster thing where they demonstrated that a propeller plane can start and land on a truck roof moving at take-off speed. This is the same problem, only in a different frame of reference...
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Whoah, there killer. The truck example has nothing in common... The truck is MOVING and therefore there is air movement across the wings of the plance hence providing lift.
Also note that it isn't going to take but a small amount of thrust to overcome the rolling resistance of the plane on the conveyer belt and that level of throttle won't be anywhere near enough to actually get a plane airbore if it was on a concrete runway. It might be enough to taxi, but not enough to actually generate any real lift...