01-31-2008, 10:44 AM
They took a tarp (a looooooooong tarp) and drug it from a truck while an ultralight stood on it.
They determined the speed required by the ultralight to take off, and ran the "treadmill" at that speed.
But they also did a dozen scale demonstrations, and showed why it works. (I.E. A plane is not a car, the wheels are just the interface with the ground, the primary motivation is still via a plane's propeller which does not interact with the ground in any way.)
They determined the speed required by the ultralight to take off, and ran the "treadmill" at that speed.
But they also did a dozen scale demonstrations, and showed why it works. (I.E. A plane is not a car, the wheels are just the interface with the ground, the primary motivation is still via a plane's propeller which does not interact with the ground in any way.)
1987 Oldsmobile Cutlass 442