Quote:
Originally Posted by kdoir345
Because the plane shouldnt move until the propeller generates enough of a force to counter what the belt is doing to the plane. Say what you will about the wheels not driving the plane, but there is still going to be an element of friction there that the wheels cant over come completly
|
There will be an element of friction yeah, but it's orders of magnitude lower than the thrust of an airplane.
Assuming the belt moves backwards at the same speed the plane moves forward, then it only has to overcome twice as much friction as it would have to if it was taking off from the runway.