The Orion Express is a medium size cargoship of Interstellar Transportation Inc. The Orion features docking ports for 6 standard cargo-units. These units can hold a few thousands standard containers, which are known since the middle of the 20th century. The Cargo units can be docked and undocked very fast, so that freighters like the Orion Express don't have to stop long at space stations for loading and unloading. Since the cargo-units don't have an own propulsion-system for docking-maneuvers, the Orion carries two tugs, which move the cargo units from one place to another.