Production information
Manufacturer Federated-Boeing Interstellar[1]
Production Year 2790[2]
Use Cargo Carrier
Type Military Spheroid
Tech Base Inner Sphere
Technical specifications
Mass 12,500 tons
Structural Integrity 12
Length 175 meters
Width 160 meters
Height 120 meters
Drive System Merlin 2400
Safe Thrust 1.5 g
Max Thrust 2.5 g
Fuel (tons) 346 tons
Fuel (days) 197.82 days
Armor 17.5 tons Standard
Fore: 82
Sides: 72
Aft: 62
Crew 18
Escape Pods/Life Boats 2/2
Heat Sinks 128 (256)
BV (1.0) 4,555[1]


Designed as the best military cargo transports in the late Star League era, the Cargomaster (also spelled CargoMaster) was a prototype DropShip that never entered full production. Built using state-of-the-art technology, the Cargomaster sported a fully automated self-loading system, keeping the ship's crew numbers small with no additional workforce required to handle the cargo.[1]

After the Star League accepted the design, preproduction began in 2781 at the Federated-Boeing Interstellar megaplex at Galax. However, by the time the first prototype was built in 2790, the Star League had fallen and the Inner Sphere was in the grips of the First Succession War. The resources and technology to build and support the massive Cargomaster had become scarce, and so the prototype and production line were scrapped.[1]


The Cargomaster was armed at each angle with one ER Large Laser and mixed supportive weaponry: 3 ER PPCs in the front, two medium lasers, 1 ER PPC, and an LRM-20 at the sides, and two medium lasers in the back. All LRM-20s were outfitted with Artemis IV Fire Control Systems and carried 132 rounds of ammunition.[1]


Designed to replace the aging civilian Mule cargo carrier, each of the Cargomaster's four self-loading bays could store as much as 2,200 tons of cargo. These interconnected bays could be isolated in case of a hull breach or similar disasters.[1]


The Cargoking, the civilian variant of the Cargomaster, was developed and produced at the same time. Both DropShip classes shared the same fate.[1]




  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 Technical Readout: 3026 Revised, p. 116, "Cargomaster Profile"
  2. MUL online date for the Cargomaster