Really ?
There is a LOT of info out there, not surprising either considering man has been making these craft for 80 years or so.
"In the mid-1960s and electromagnetic submarine designed by Dr. Stuart Way, who was on leave from Westinghouse Research Laboratory, was successfully tested. It made use of the fact that electric and magnetic fields at right angles to each other produce a (Lorentz) force at right angles to both. The force pushes against the surrounding electromagnetically conducting fluid (seawater) which pushes back and moves the submarine. It is possible to envision an airborne analog in which seawater is replaced by ionized electrically conducting air, and conventional electromagnetic fields are produced by superconducting magnets which need little space, very little power and weight, and generate very high magnetic fields. Substantial research, much of it classified, has been done showing that a magnetoaerodynamic system would be capable of solving all the problems of high-speed flight by controlling lift, drag, heating, and sonic-boom production—all electromagnetically rather than mechanically or chemically. The resulting system would be symmetric, highly maneuverable, relatively silent, often have a glow around it, and be capable of sudden starts and stops. It could carry its own power supply or be charged up on board its mother ship in much the same manner as a golf cart which carries only a storage battery."
From
http://www.stantonfriedman.com/index.php?ptp=articles&fdt=2009.02.03
I'll spare you what they have now & who they got it off, maybe we need a proper UFO thread on here ?