How does the ground moving in the opposite direction affect lift, drag etc....Originally Posted by {X}Echo419
Here...lets do another experiment... a plane is flying 3 feet over the ground and then fly's over a huge treadmill...how would that effect the plane? The answer is it wouldn't. The only purpose of a plane's wheels touching the ground is to reduce rolling resistance until the plane reaches a high enough speed to take off. It doesn't matter how fast they go or slow. The plane's speed is determained by how fast it's engines can draw air through and push it.




+1 for someone with some damn sense. 
