Mediscout Vessel RV79β was an ambulance ship piloted by Captain Henriat Galving. Captain Galving used it during the Last Great Time War to take wounded people to Arcking for medical attention.
Whilst returning to Arcking Station 12, the Daleks attacked the ship and killed most of those aboard. The ship crashed and the survivors - Jem Carnell and Cole Jarnish - were taken for emergency medical care. (AUDIO: The Good Master)