[froogle]

Garbage for anything Earth-travel related. Gravity is 9.8N/kg, so to generate enough force to counter gravity you'll need to feed this thing 9.8MW per kg.

Your typical 100 HP car engine puts out 75.6kW, so you'd need 130 car engines' worth of power to lift a small 1 kg/~2 pound object. Not to mention that the machinery needed to channel/produce that kind of energy would be so heavy that it could not lift itself.

But it's still possibly useful for space travel. Not needing propellant is huge for long-distance space travel.

That said: they don't know why it works. (If it even works, which I strongly strongly strongly doubt.) If they figure out what produces the phenomenon, it's very possible they could get the drive to be way more efficient.