Quote:
Originally posted by NY Madman:
Quote:
Originally posted by JeffW:

[b]Therefore, in ALL cases the plane moves with respect to the atmosphere, thus achieving lift.
You and others keep repeating the same exact FLAW.

The plane DOES NOT move in relation to either the atmosphere or the ground. It's engines are ONLY pushing air behind it.

You can't seem to get your arms around that fact. (You can stop posting Branden's drawing. How man times is that now?)[/b]
Holy shit. I'm gone most of the day and you CF'rs still can't grasp that the aircraft is not stationary and that the belt can't make it stationary.

You, Madman, are making an assumption when you state that the plane will not be travelling through the air. The conveyor is said to match the plane's speed, not keep the plane stationary. A plane's speed is measured either through the air or over the ground, not over the surface directly beneath it (if the last were the case, then an aircraft's groundspeed would change when it flew over running water or ocean currents).

Let's try it the other way. The aircraft is already airborne and on approach to the conveyor/runway for a touch-and-go. The runway is spinning at exactly the same speed in the opposite direction, just like when it took off. laugh Now, when the aircraft touches down (no brakes, remember, doing a touch-and-go) will it immediatly come to a complete stop and be unable to take off again (do the "go" part)?