Quote:
Originally Posted by AnarChrist
I would say the conveyor. There is still going to be substantial pressure on the conveyor caused by the mass of the plane, so any thrust in one direction is going to be countered by movement in the opposite on the conveyor. The plane may gain some forward movement, but not near enough to develop enough airflow to generate lift.
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If a plane takes off without the conveyor moving, then there's x amount of force holding the plane back due to the wheels and landing gear and such right? Then if the conveyor is activated, then only 2x that force is there.
I can push a car if the brake isn't on, the amount of energy to overcome the friction of rolling on the runway is very small compared to the amount of energy to push the plane through the air (it's a cube power relationship).