Class four container transport

Imperial cargo ships were enormous crafts, designed to haul large numbers of crates and containers from port to port. They required the presence of an inventory droid to track and monitor all the cargo. In the third year before the Battle of Yavin, the rebel astromech Chopper stowed away on an Imperial cargo ship, stationed on the Horizon Base, eventually joining forces with an inventory droid AP-5 to steal the vessel from the Empire.