Wow, another forum full of idiots who think it won't take off because it won't move.... it does move.
The wheels on the plane are free rolling. Even though the runway is moving backward, the plane is not affected. Why? Because the plane is powered through the engines, the wheels just spin.
All of you who say it won't take off are imagining a car instead fo a plane, if a car was on the runway, you would be correct (aside form the fact that cars can't fly). This is because the cars motion is dependent on the wheels, therefore it would just stay still in the same scenario. However the power from the plane comes from the engines and NOT the wheels... pretend the runway was stationary for a moment, the plane would take off, now when the run way is moving, the engines push the plane forward and the wheels just spin twice as fast to compensate for the moving runway, and it takes off.
Imagine a plane mounted on a hovercraft (it's been done), the hovercraft would glide over the runway since it is not in contact with it, and the plane would take off. It's the same principal with the wheels, the wheels do not restrict the planes motion and do not propel it they would just spin faster on a moving conveyer as the plane accelerates foward.
If you still don't believe me, try putting a matchbox car or skateboard on a treadmill, now move it forward with your hand, it moves forward- magic! The power provided by your arm is analagous to the thrust of the engines, which allow the plane to take off.
The wheels on the plane are free rolling. Even though the runway is moving backward, the plane is not affected. Why? Because the plane is powered through the engines, the wheels just spin.
All of you who say it won't take off are imagining a car instead fo a plane, if a car was on the runway, you would be correct (aside form the fact that cars can't fly). This is because the cars motion is dependent on the wheels, therefore it would just stay still in the same scenario. However the power from the plane comes from the engines and NOT the wheels... pretend the runway was stationary for a moment, the plane would take off, now when the run way is moving, the engines push the plane forward and the wheels just spin twice as fast to compensate for the moving runway, and it takes off.
Imagine a plane mounted on a hovercraft (it's been done), the hovercraft would glide over the runway since it is not in contact with it, and the plane would take off. It's the same principal with the wheels, the wheels do not restrict the planes motion and do not propel it they would just spin faster on a moving conveyer as the plane accelerates foward.
If you still don't believe me, try putting a matchbox car or skateboard on a treadmill, now move it forward with your hand, it moves forward- magic! The power provided by your arm is analagous to the thrust of the engines, which allow the plane to take off.
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