So I was looking at what types of Reaction-less engines people might have come up with and I found this Patent on 5197279_Electromagnetic_energy_propulsion I attached it as a PDF It seems to me that the engine generates a Magnetic Field with enough energy to be equal to quiet a bit of mass. It then seems that by some how Ejecting the magnetic field from one side of it at huge speeds, it generates a substantial amount of thrust. It looks as if it is kinda of based off a solar flare? It looks like it does something with Magnetic Tension and forcing a part of the Magnetic field to become disconneted? Is that even possible for a magnetic field to become disconnected from it's source? I found a video that kinda shows what I talking about and it looks like it is possible. Here it is http://www.youtube.com/watch?v=BDZj1CmsJ64&feature=related Also I know Reaction-less engine threads and such aren't usually allowed but this one actually has a patent!!!!!!