The Rover class is a ship class of "Small Fleet Tanker" of the Royal Fleet Auxiliary of the United Kingdom. They are tasked with the support of naval warships by the replenishment at sea (RAS) with fuel oils and with limited supplies of other naval stores. For RAS tasking, they can refuel a vessel on either beam and a third trailing astern and have a large flight deck to allow vertical replenishment (VERTREP) with helicopters.