Nimrod class Fuel Lighter

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Nimrod class Fuel Lighter
Distant Fringe Logo.gif
Distant Fringe vessel.
Type: TF Tanker
Category [[BCS]]
Size 15,000 Tons
Hull Configuration [[Cylinder Hull]]
Streamlining Partially Streamlined Hull
Tech Level TL–10
Computer Model/4
Jump J-0
Maneuver 2 G
Hardpoints 150
Staterooms 0
Crew 83
    Officers 17
    Enlisted 66
High/Mid Passengers 0
Cargo 200,0 Tons
Fuel Tanks 11,700 Tons
Fuel tank 0 Tons
Origin Distant Fringe
Cost MCr5,001.570 (base)
MCr4,001.256 (qty)
Architect fee Ade Stewart
Quick Ship Profile Not applicable
Blueprint Yes
Illustration Yes
Also see Tanker
Canon Published, fan design
Era 1105
Reference Ade Stewart
Starships are designed with the Classic Traveller format, using High Guard.

The Nimrod class Fuel Lighter is a mercantile bigcraft.

Description (Specifications)[edit]

The Fuel Lighter is a non-jump Tanker encountered within the Distant Fringe region and is classified as a Bulk Cargo Carrier. It is designed to operate within a single star system, skimming fuel from gas giant worlds and ferrying it back to the mainworld's Starport facilities or transferring it directly to waiting vessels. Similar designs have been in use from the time the Distant Fringe was first settled.

  • The vessel is a TL-10 design.

Image Repository[edit]

  1. A Nimrod class Fuel Lighter.
    J0 15000dT Fuel Lighter 2.jpg

General Description[edit]

The Nimrod class is a partially streamlined cylinder with a mean diameter of 40 meters and a length of around 160 meters. Some sections are narrower and some are wider, giving it a total enclosed volume of approximately 202,500 cubic meters. Huge fuel tanks form the majority of the interior of the ship. The main tanks are subdivided into smaller interlinked cells containing baffles, compressors, and pumping equipment, and are separated by service decks. The engineering section is located aft, within the core of the vessel, while the bridge and accessible sections of the vessel such as the crew quarters and the cargo hold are located forward. Transfer shafts, offset from one another to reduce the risks associated with accidents or damage, link the various decks together.

J0 15000dT Fuel Lighter Plan.jpg
A basic deck plan of the vessel indicating the general layout and positioning of major elements.

Basic Ship Characteristics[edit]

Following the Imperial Navy and IISS Universal Ship Profile and data, additional information is presented in the format shown here. The small craft factor indicates the number of squadrons (...of ten subcraft) carried on the ship. Tonnage on the universal ship profile is shown in kilotons (...thousands of tons) where necessary. [1]

Basic Ship Characteristics [2]
No. Category Remarks
1. Tonnage / Hull The Fuel Lighter is constructed using a 15,000 dTon hull built in a cylindrical configuration. The hull is partially streamlined and has a limited capability to perform atmospheric operations: its atmospheric handling characteristics are entirely reliant on its onboard gravitic systems.
  • Individual sections of the ship are divided by bulkhead walls.
  • There are multiple airlocks located around the vessel.
  • The configuration of the hull prevents surface landings without the use of a hull cradle to support the vessel.
2. Crew Total Crew Complement: 83
  • x11 Command, x17 Engineers, x9 Gunners, x45 Service, x1x Medic, 5x Specialist Purification Engineers.

There are 54 Staterooms.

Accessible areas of the hull are fitted with grav plates and inertial compensators and have full life support and environmental systems.

  • There are internal monitoring and security systems throughout the vessel. Sections of the ship can be isolated in the event of an emergency.
  • There are multiple Emergency Lockers.
3. Performance The vessel mounts a Maneuver-2 drive and a Power Plant-2, giving performance of 2-G acceleration and producing 300 Energy Points. The ship has an agility rating of 1 and an emergency agility of 2. The dedicated internal fuel tankage gives the power plant 4 weeks duration.
  • The engineering section has a main control room.
    • Ladders, gantries and platforms give access to the machinery.
4. Electronics Adjacent to the bridge is a Model/4 Computer: the vessel has a backup Model/4 Computer.
5. Hardpoints x150 hardpoints.
  • The listed weapons systems are typical for the design. Alternative weaponry may be designated for specific systems.
  • There are 70 unused hardpoints and 70 dTons are set aside for fire control.
6. Armament The Fuel Lighter is generally unarmed.
7. Defenses The hull is unarmored.

x80 triple Sandcaster turrets, grouped into eight batteries each of 10 linked turrets

The vessel is not fitted with screens or other passive defensive systems.

8. Craft Flight Section

The lifeboat is housed in a dedicated hangar located in the bow of the vessel, close to the accommodations: the hangar can be sealed and has a total volume of 65 dTons.

9. Fuel Treatment The vessel has dedicated internal fuel tankage of 300 dTons.

The vessel has commercial fuel tankage of 11,700 dTons.

10. Cost The basic cost of the vessel, complete with its complement of subcraft, is MCr5,001.570
  • If multiple examples of the design are ordered all of the ships in the production run qualify for a 20% discount, which reduces the price per unit to MCr4,001.256
  • The vessel and its subcraft are standard designs. Detailed architectural plans are widely available and no design fee is chargeable.
11. Construction Time 166 weeks (42 months) as standard.
  • Build times can be reduced by mass production and the efficiencies such processes generate, by increased financing, and by allotting additional yard resources and facilities to the construction contract.
12. Comments Standard cargo capacity amounts to 200 dTons.

History & Background (Dossier)[edit]

The design is representative and a large number of variants exist, particularly with regard to the allotted weapons systems, onboard electronics, and the fit out of internal spaces. Fuel Lighters are designed to work within a single system, skimming fuel from gas giant worlds and transporting it back to the local starport, using its onboard refining plant to process and purify the product en route. Examples of the Nimrod class are rarely seen in systems lacking gas giants.

Nimrods are Gas Traders. They may work with orbital port facilities such as the Harbor class Station.

Nimrods and similar vessels are generally regarded as "hell ships", capable of generating immense profits for their owners and driven extremely hard by their captains and masters to do as many skimming runs as possible. In busy ports, with a constant demand for fuel, Nimrods fight to shave minutes off of their total turnaround time.

Distant Fringe Vessels[edit]

The Distant Fringe is said to be a far spinward-rimward area inhabited by colonists and refugees originating on Terra. The region is extremely isolated, separated from the rest of Charted Space by vast, almost uncrossable rifts that were once broached by a system of calibration Points and the use of tankers. Those few academics within Charted Space who have found references to the Distant Fringe regard it as little more than a tall tale. Likewise, many of the inhabitants of the Distant Fringe believe the existence of Charted Space to be mythical.[3]

Vessels originating within the Distant Fringe are very rarely encountered outside of the region. However, misjumps do occur and anomalies with bizarre spacetime and Jumpspace effects exist: as such, craft of this type are not entirely unknown within Charted Space.[4]

Class Naming Practice/s & Peculiarities[edit]

A number of companies manufacture ships equivalent to the Nimrod class. They vary in hull shape and internal layout but all share the same basic design and all have very similar capabilities and performance characteristics.

While fuel lighters are well built and capable vessels, the various classes see hard service and receive relatively low levels of maintenance. They are driven hard by their owners and commanders, exhausting their crews and further increasing the hazards. The engineering decks, in particular, linked by a single transfer shaft and entirely surrounded by fuel tanks, are considered a death-trap.

  • Each variant class is named by the company that produces it: these organizations generally draw on traditional naming protocols. It is not uncommon for a historical class name to be reused.
  • Individual vessels within a class are issued specific serial numbers and transponder codes but traditionally are named by their owners. This is considered a serious affair and a ship with a frivolous name is considered "unlucky".

Selected Variant Types & Classes[edit]

Bigcraft - Fuel Tanker:

Merchant Vessel - Tanker:

References & Contributors (Sources)[edit]

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This list of sources was used by the Traveller Wiki Editorial Team and individual contributors to compose this article. Copyrighted material is used under license from Far Future Enterprises or by permission of the author. The page history lists all of the contributions.
  1. Timothy B. Brown. Fighting Ships (Game Designers Workshop, 1981), 10.
  2. Timothy B. Brown. Fighting Ships (Game Designers Workshop, 1981), 10.
  3. An unpublished factoid written by Maksim-Smelchak
  4. An unpublished factoid written by Maksim-Smelchak