Might as well...
Temporal Warp Drive. Uses loophole in temporal physics to bring a ship forward in time to a point where it has reached its destination, which is the exact moment it left. It is used exclusively by the Cyraith Republic, and no trading, bartering, or outright theft will be allowed of the designs. It only works on ships of larger mass, as small ships do not "Weigh" enough to stabilize the rift. Experiments involving the Temporal Warp Drive have had drastic consequences, and incorrect usage could cause devastation of a galactic scale.
To an outside observer, a ship activating the Temporal Warp Drive appears to stutter, then simply cease to appear in that location. The Drive can be used in an atmosphere, but it will produce an effect akin to a sonic boom as air rushes in to the space previously occupied by the ship.
To a viewer within the ship, no time at all passes, however, exterior mounted camera footage shows the space outside the ship seems to sink into the ship as the space of the destination folds out of the ship.
The operation of the device is so complicated, the Cyraith coordinate system revolves around it. The device requires an extremely large amount of power to operate. The Drive cannot be used multiple times in rapid succession, and the most efficient know Drive has a "Cooldown" time of two (2) hours, and the worst know Drives are single use.