[bigtime]

If someone is running on a treadmill and you walk up behind and push them they are going to move forward. It doesnt matter how fast or slow they are moving, they will move forward.

It is the same with the plane. When the engines provide force to the plane, it will move forward, just like it were on a normal runway. It will move forward and take off in the same distance as on a normal runway. No ifs ands or buts.

 

[bigtime]

So... you claim that humans and aircraft have the same center of gravity and areodynamics?



Nope. Just trying to help you see the light.

Knocking someone off-balance has nothing to do with how aircraft fly. Or how the forces that cause aircraft to fly are applied.

This has nothing to do with how airplanes fly. This is about what happens when force is applied to an object. Why would the plane not move forward when jet engines are giving it a big push?

 

[bigtime]

Uhhhh.... sorry. No it isn't.

This is cheating the test. First of all, the original scenario was based on the premise of a single aircraft overcoming the belt. It can't be done IF this fictional belt can compensate for any application of power. The belt is resisting an internal source of power in the OP. IF the belt can compensate for any new application of power, the aircraft will be stationary and will not lift off. Period.

IF, however, in this fictional scenario... we introduce a source of power and propulsion that *cannot be accounted for by the belt*... then the comparison has no meaning.

You are talking about a *powered* aircraft not considered by the belt lifting an ultralight off a runway that is only considering the wheelspeed of an unpowered ultralight. And even if the speed was considered... no matter. Because the belt itself would not be actively resisting the power of the tow aircraft.

Exchange the rope for engines... and the belt WOULD be resisting it.

Foul ball there, guys.

You have to get off the runway and get up in the sky. Out of the trees and into the forrest.

When the force is applied from the airplane engines to the plane, it must move. For every action there is an equal and opposite reaction.