They were thrown a thousand light years away from the planet by
. On the way back they were sabotaged; the "The emergency bypass control of the matter/antimatter integrator is fused', which caused the engines to go "running wild". They solved it by using a magnetic probe to shut off the fuel flow.So whilst it wasn't something they did themselves, all that the sabotage did was basically eliminate the safety system and so dump the maximum possible power into the warp drive - essentially exactly what the Orion would have done with his engines.
