http://adleave.com/joe%20067.jpg
The above pic is a design of new propulsion system.
It is very simple. Some of you guys may have the access to build and test it.
The principle is space is a magnetic field, it may fill up something like ether. If we rotate a fan that is made by superconducting material in a vacuum chamber and keep it below critical temperature, we should have a thrust of magnetic wind.
Maybe that's how UFO's fly around. Because magnetic wind moves no mass, the new motor should be high efficiency.
Thanks. Try it out and also study Victor Schaubergers work in and after WorldWar2.
Pity there are no room temperature superconductors...The energy required to cool the superconductor would probably exceed the output...unless you actually put it in space, where it's very, very cold.