The KD-44 Knightsword is a super heavy tanker, used to refuel aircraft during operations. It is based on the the civilian E-44 Superliner. The Dropship is atmosphere and space capable, with VTOL capabilities and its own slipspace drive, intended to act as a inter-system transport. The KD-44 is used by the UNSC Navy and Air Force to provide space lift capabilities for Army, Navy, Marine and Air Force personnel and material. The Knightsword has three internally linked decks, with separate docking points. It can carry much of the same capacity as the CD-44 Auk, though often carries extra fuel tanks to facilitate refuelling missions.