Class J Cargo Ship

From Bravo Fleet Infobase


Class Information

Cargo Ship



Date Entered Service:


Ship's Complement
Crew Complement:


Overall Dimensions


Warp Performance
Cruising Speed:

Warp 1.5

Energy Weapons:

2 Plasma Cannons

Auxiliary Craft

Class Information

Aft view of a Class J Cargo Ship while at warp

The Class J Cargo Ships were civilian cargo vessels operated under the authority of the Earth Cargo Service The first of the Class Js were put into service in the late 2090's.Each ship's name was prefixed with E.C.S.The ships of the J class consisted of two sections, the forward Command Section and the aft Cargo Section.Unlike the Class Y cargo ships which were a solid unit the Class Js were capable of detaching the forward command section from the cargo section.

The forward Command Section housed the bridge, crew quarters, and ship systems. The Command section also housed the ships mess hall which served as the central meeting area for the crew during their off time. The lower decks of the command section housed the ships systems such as life support, Impulse and Warp propulsion.

The Command Section of a J Class detaching from the aft Cargo Section

The aft Cargo Section housed the central access corridor and the cargo modules. Each of the cargo modules were labeled with a numeric designation painted on the outside of the ships hull. Like the command section each individual cargo module could be disengaged from the rest of the ship should the need arise to jettison any of the modules.

The Class Js were able to maintain a cruising speed of warp 1.5 and could achieve and maintain a top speed of warp 2 even when fully loaded. Both the warp and impulse engines were housed in twin nacelle like pods slung under the forward Command Section with one pod on the port side and the other on the Starboard side of the ships hull.

The Class J Cargo Ships were equip ed with twin plasma cannons with one mounted to the dorsal surface of the hull of the cargo section and the other mounted to the ventral sufferance of hull of the cargo section. These ships were also equipped with hull polarization systems to provide an extra measure of protection to the ship.

Basic Information
  • Role: Cargo Ship
  • Dimensions: 230 meters (L) x 53 meters (W) x 50 meters (H)
  • Decks: 5
  • Expected Duration: 60 Years
  • Time Between Resupply: 5 years
  • Expected Refit Cycle: 15 years
Crew Complement
  • Total Crew: 10
    • 1 Officers
    • 9 Enlisted

  • Emergency Capacity: 50
  • Thrusters: RCS Thusters
  • Sublight Speed: 1/4 the speed of light
  • Warp Speed
    • Cruising Speed: Warp 1.5
    • Maximum Warp: Warp 2
    • Emergency Warp: Warp 2.2 (for 6 hours)
  • Slipstream Capable?:
Offensive Systems

ENERGY WEAPONS 2 Plasma Cannons

  • 1 Dorsally mounted plasma cannon
  • 1 Ventrally mounted plasma cannon


  • None
Defensive Systems
  • Shields: Hull polarization
Primary Systems
  • Computer Systems:
  • Standard computer system
  • Transporters:


  • Sensor Range: 5 light years
  • Communications Range: 5 light years
Auxiliary Craft



Other Notes


  • Mess Hall'


  • The J class cargo ships were civilian craft operated by the United Earth Cargo Service and therefore had ECS before their name.
  • The Drive section could detach from the cargo section
  • The J class cargo ships could carry up to 30,000 metric tons of cargo
  • The J class cargo ships made use of engine pods that housed both warp and impulse engine systems

Deck Listing

Deck Details/Specifications of Deck
Deck 1:
  • Dorsal plasma cannon
  • Cargo modules 1-5 upper level
Deck 2:
  • Bridge
  • Docking ports 1(port) and 2 (starboard)
  • Cargo section access hatch
  • Cargo modules 1-5 mid-levels
Deck 3:
  • Crew quarters
  • Mess Hall
  • Galley
  • Life support systems
  • Deflector generator
  • Deflector dish
  • Sensor systems
Deck 4:
  • Warp reactor
  • Deuterium tanks
  • Antimatter pods
  • Waste management systems
  • Engine pod access hatches