The Altor-class replenishment ship was an Imperial support ship class that carried fuel for other vessels in the Axis Navy. The Altor-class was a large Imperial supply ship model and carried six pill-shaped fuel containers. In addition, it also contained at least four arm nozzles to refuel capital ships. The Altor was capable of refuelling two battlecruiser- and dreadnought-scale ships at the same time, one on each side. At the stern of the vessel were located several hangar/drydock complexes that could fit frigate-scale capital ships for deep space repairs.