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Originally Posted by idimmu
The engine creates a force forwards and the wheels turn due to friction between the wheels and the floor
consider a scenario where the floor is really smooth, no friction on the wheels, the plane will still move forwards even though the wheels arent moving
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This isn't the same, as the plane is moving around here so therefore has airflow.
Quote:
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Originally Posted by idimmu
or a scenario where the plane has no wheels and just has bricks, given a powerful enough engine, the plane could overcome the friction between the 'bricks' and the ground and still move forwards
in this scenario the plane would take off. what id imagine would happen is the wheels wouldnt roll nicely over the ground, but be dragged along by the body of the plane whilst rotating at the same speed as the ground is moving
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This is similar. The plane wouldn't take off. If it could, then why do we have runways at airports? Surely we could just mount all the aircraft on bricks and have them take off from stationary positions? The plane needs the air to move under its wings.