Quote Originally Posted by 2manymustangs View Post
Why? Why do you say the treadmills is spinning the wheels faster and faster?


Lets start with some "ground" rules, what is the FIXED speed of your treadmill? Tishimself, lets make it interesting:

The treadmill is ONE MILE LONG, fixed speed of 6MPH (ten minute mile)
The engines on the aero-plane are NOT running
There is a cliff at both ends that drops to the abyss and the plane is sitting at the FAR end and has one mile / ten minutes to throttle UP and get airborn...

OR else...

Press GO and the airplane is now moving in reverse at 6MPH...

Now what???
The fallacy of your logic (as I see it at least), is that you're forgetting something. The wheels of the airplane are connected to the plane, and friction exists between the runway (conveyor belt) and the wheels.

For the plane to take off, it has to reach a certain airspeed - the speed at which the air passing over the wing is enough to create lift. In order for the plane, which is on the ground, to reach a forward speed, its wheels would need to be travelling in a net forward direction. In order for this to happen, their speed would have to be GREATER than that of the belt running beneath them.

If, as the above indicates, the speeds are ALWAYS equal, then the plane will not move.