Forum:Agent of the Imperium ship types

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Ship Hierarchy / Organization Links (2019)[edit]






Notes (2019)[edit]

This is the system that I implemented at the wiki after extensive discussion with selected members of the Inner Circle and that was approved by MWM.

  • It doesn't fully reconcile with the earlier wiki ship classifications system ( the amazing Jmattera) or with every Trav edition, but it is as close a workable compromise as is probably possible.
  • If you have a better system and are reading this, please contact the current Traveller RPG Wiki administrator. We should all be open to change and improvement where it is warranted.
Imperial Ship Classification
# Level Designation Synopsis Example/s
1. Ship Mission Codes SUPRACLASS MISSION Free Trader AKA Merchant
2. Ship Type Codes SUPERCLASS TYPE Type A class Free Trader
3. Ship Class Codes CLASS CLASS Beowulf class Free Trader
4. Ship Model Codes MODEL TL & Model TL-14 Beowulf Build
  • Models aren’t always mentioned, but if they are, they are usually referred to by a TL designation.
5. Ship Bloc Codes LOT or BLOC Named Ship “The Lonesome Wolf” of ‘Bloc 312-1115d’
  • Ship Lots or Bloc Codes are rarely used except by naval shipyards, patrol craft, and the like. They are recorded in the ship’s computer as well as a number of places on the hull.
  1. INTERNAL LINK: Ship Mission Code (#1. Top Level)
  2. INTERNAL LINK: Ship Type Code (#2. Second Level)
  3. INTERNAL LINK: Ship Class Code (#3. Third and most common level)
- Maksim-Smelchak (talk) 09:52, 2 May 2019 (EDT)

Military Auxilaries (2019)[edit]

COMPLETED: Blend Combat Support Ship and Military Auxiliary

- Maksim-Smelchak (talk) 13:59, 6 June 2019 (EDT)

Notes - Research (2019)[edit]

Major ship classification systems compared from CT to WIKI.

Letter Code Comparison
Ltr CT
A Auxiliary Merchant Vessel Trader Auxiliary, Minor;
Secondary Modifier: Armored
Trader A-class Merchant Vessels (Tramps - Cargo & Low-volume Passengers)
  • Military Auxiliaries now go to Q-class
  • Traders or Tramps remain
  • All manner of traders: Free, Deep, Far, etc.
Somewhat consistent.
  • Slightly conflicted.
B Battleship Battleship Boat, Beagle Battleship, Battle, Primary, Capital, Dreadnought, Ship-of-the-Line;
Secondary Modifier: Beam
Battleship B-class Battleships Mostly consistent.
C Cruiser Cruiser Cruiser Cruiser Cruiser C-class Cruisers
  • No need to change. Weight tonnage cruisers remain
  • Corvettes go to E-class
  • Small (speed) Cruisers go to E-class
Completely consistent.
D Destroyer Destroyer Defender Secondary Modifier: Monitor Defender (SDB) D-class Destroyers
  • Anything not a destroyer goes to E-class
  • Defenders and SDBs go to H-class
Mostly consistent.
E Escort Escort Corvette, Escort Unused Corvette, Escort E-class Escorts
  • Includes all manner of tiny vessels
  • Brigs, Corvettes, FACs, Sloops, etc.
  • Patrol ships here if military and Imperial Navy. Otherwise to H-class.
Mostly consistent.
F Frigate Fighter, Frigate Freighter Fighter;
Secondary Modifier: Fast or Flag
Fighter, Freighter, Frigate F-class Fighters
  • Only fighters now
  • Fighters = Dedicated combatant smallcraft (...mostly)
  • Fighters bigger than 100 tons go to E-class or elsewhere
  • Non-combat-dedicated utility smallcraft go to U-class
  • Frigates go to E-class
  • Freighters go to A, M, R, or T-class
Somewhat consistent.
  • Slightly conflicted.
G Commercial Vessel Refinery Vessel Corvette
Unused Industrial Vessel, Frigate G-class Industrial Vessels (Commercial)
  • Frigates and Corvettes go to E-class
  • Refinery
  • Ag / Farming
  • Factory Ships
  • Refinery ships
  • Largecraft tug
Somewhat consistent.
  • Slightly conflicted.
H Fuel Tanker Hunter Vessel Ortillery Ship Unused Ortillery Ship, Security Vessel H-class Security Vessels Somewhat consistent.
  • Slightly conflicted.
I Intruder Vessel Intruder Vessel Unused Unused Assault Transport, Intruder Vessel I-class Combat Transports
  • Includes troop transports, assault landers, etc,
Somewhat consistent.
J Intruder Vessel Intruder Vessel Prospector, Seeker Unused Prospector, Seeker J-class Prospector Vessels
  • Prospectors and seekers remain
  • Intruders go to I-class
Somewhat consistent.
  • Slightly conflicted.
K Courier Vessel, Safari Ship Courier Vessel, Safari Ship Safari Ship, Expedition Ship Secondary Modifier: Strike Expedition Ship, Safari Ship K-class Expedition Ships Mostly consistent.
L Lab Ship Lab Ship Lab Ship Secondary Modifier: Lander Lab Ship L-class Science Vessels Completely consistent.
M Merchant Vessel Merchant Vessel Liner Secondary Modifier: Missile Liner M-class Merchant Vessels (Freighters - Bulk Freight)
  • No changes although most named liners go to R-class
Mostly consistent.
N Unused Ferry Survey Ship, Monitor, Medical Ship Unused Hospital Ship N-class Medical Ships
  • Ferries go to Q-class or U-class
Somewhat consistent.
  • Slightly conflicted.
O Ordnance Vessel Unused Unused Secondary Modifier: Orbital Ortillery Vessel O-class Ortillery Vessels
  • Bombardment Ship
  • Siege Engine
  • etc.
  • Military Ordinance vessels go to Q-class
  • Slightly conflicted.
P Fighter Planetoid Vessel Corsair Vessel, Marauder, Patrol Ship, Picket Ship, Privateer, Unused Corsair Vessel, Patrol Ship, Fighter P-class Corsair Vessels
  • Fighters all go to F-class
  • Planetoids get spread around by their role and function (P is a secondary modifier)
  • Raiders become PR
  • Q-ships become PQ
  • Marauders
  • Privateers
Somewhat consistent.
  • Slightly conflicted.
Q Military Specialty, Decoy Auxiliary, Decoy Unused Secondary Modifier: Quarantine (Obsolete) Auxiliary, Decoy Q-class Military Auxiliary/s
  • Decoys
  • Military Speciality
  • All manner of military auxiliaries
  • Hospital remain at N-class
  • Q-ships go to P-class
Somewhat consistent.
  • Slightly conflicted.
R Liner, Battle Rider Liner, Raider Vessel Raider Vessel, Merchant Vessel Secondary Modifier: Rider Merchant Vessel, Raider Vessel R-class Merchant Vessels (Liners - Medium Cargo & Medium-volume Passengers)
  • R now a dedicated merchant code
  • Raiders go to PR
  • Battle riders now classified by role or size (...becomes a secondary modifier)
Somewhat consistent.
  • Slightly conflicted.
S Scout Vessel Scout Vessel Scout Vessel, Courier, Messenger, Sentinel Siege Engine;
Secondary Modifier: Slow
Scout Vessel S-class Scout Vessels
  • Sieges go to O-class
  • Includes all sorts of other Scout vessels, but not explorers, which go to K-class expeditions
Mostly consistent.
  • An inconsistency.
T Tenders, Transports Tankers, Tenders, Transports Tenders, Transports, Tugs, Assault Ship Unused Tankers & Transports T-class Tankers & Transports (Bulk Trade Freight)
  • T-class are now dedicated transports and tankers
  • Tenders go to V-class or elsewhere depending on role
  • Patrol ships go to E-class if escorts and H-class if system defenders or security vessels
  • Tugs go to G-class, Q-class, or U-class depending on size and user.
Mostly consistent.
U Utility Craft Tug Packet Ship Unused, Utility Craft U-class Utility Vessels & Utility Craft
  • Packets ships go to X-class
  • Ferries
  • Smallcraft tug
  • Jump Ship Jump cabooses, jump ferries that are not tenders
  • Tugs remain or go to Q-class if military-dedicated
  • Includes U-class smallcraft except fighters, which are F-class
Somewhat consistent.
  • Slightly conflicted.
V Carrier Carrier Destroyer Carrier Carrier V-class Subcraft Carriers
  • Carriers
  • Tenders
  • Some tenders go to X-class (Xboat tenders) or T-class if commercial
  • Other possibilities are available although rare
Completely consistent.
W Space Station (Orbital Complex) Barge Barge Unused Space Station, Barge W-class Space Stations & Satellites & Barges (System Craft - Non-Interstellar)
  • Includes little to no drive and no mission beyond the star system
  • Might include far system craft or stations
Somewhat consistent.
  • Slightly conflicted.
X Unused Express Ship Express Ship Unused Communication Vessel, Tender X-class Communication Vessels
  • X-boats
  • X-boat tenders
  • Packets
  • Dedicated non-military couriers
  • Alternate mail ships
  • Relay Ships
  • etc.
Mostly consistent.
Y Yacht Yacht Yacht Unused Yacht Y-class Yachts (Private Craft)
  • All manner of privately owned craft
  • Including commuter or passenger smallcraft if system-dedicated and not elsewhere
Completely consistent.
Z Experimental Craft (Hybrid) Experimental Craft Unclassified Ship Unused Unclassified Ship, Experimental Craft Z class Special Mission Ships Mostly consistent.
- Maksim-Smelchak (talk) 13:54, 16 May 2019 (EDT)

Table Discussion[edit]

It might ease some of the Class Code difficulties for T5/AotI if one remembers that the ACS (civilian, military and paramilitary) and BCS (largely military, with a few large civilian/commercial types) ship classification systems are largely independent of one another. Since ACS vs. BCS is clearly indicated by tonnage, an ACS and a BCS ship could potentially use the same code for different meanings, without significant ambiguity. The place where one would want to maintain a basic level of consistency would be among naval vessels across the ACS/BCS divide.
--WHULorigan (talk) 09:41, 17 June 2019 (EDT)

Thanks for your expert advice, Wayne.

- Maksim-Smelchak (talk) 12:47, 17 June 2019 (EDT)

Marc's BCS mission codes are usually only modifier codes, omitting the mission.
I also see that the table also is in error, propagating the High Guard mistake of switching R (merchant) and M (liner).
- Rje (talk) 16:36, 17 March 2022 (EDT)

Interstellar Trade Boundaries (2019)[edit]

  • Pg. 25, 38-40 GT-Far Trader
    • Cargo Types
      • Wet Bulk
      • Dry Bulk
      • Breakbulk
      • Container
      • RO/RO
  • Pg. 53 GT-Far Trader
    • Cargo (Non-bulk) vs. Freight (Bulk) vs. Passengers
    • (Tramp vs. Trader) & (Freighter vs. Liner)
  • Pg. 55 GT-Far Trader
    • Bulk, Dry
    • Bulk, Gas
    • Bulk, Liquid
    • Breakbulk
  • Need to define these categories so everything can be consistent
    • Breakbulk: Consisting of several individual small and different sized items, loads, or units.
    • Breakbulk Cargo: Packaged but non-containerized cargo. Loose cement, grains, ores, etc., are termed bulk cargo, whereas cargo shipped as a unit (bags, bales, barrels, boxes, cartons, drums, pallets, sacks, vehicles, etc.) is termed break bulk.
    • Bulk: Unpackaged, homogenous, dry or liquid goods, without mark or count and usually free-flowing, bought and sold by weight or volume, such as grains, oils, and ores.
    • Cargo: Goods carried on a ship, aircraft, or motor vehicle.
      • All articles, goods, materials, merchandise, or wares carried onboard an aircraft, ship, train, or truck, and for which an air waybill, or bill of lading, or other receipt is issued by the carrier. It includes livestock, but usually does not include bunkers (fuel for powering the vessel or vehicle), accompanying baggage, vessel or vehicle's equipment and spare parts, mail, and stores. Personnel carried onboard are classified as crew or passengers.
    • Freight: Goods transported in bulk by truck, train, ship, or aircraft.
      • 1. A charge paid for carriage or transportation of goods by air, land, or sea.
      • 2. A colloquial term for freight charge. Goods may be transported on freight-prepaid or freight-collect basis: (1) If the freight is paid by the consignor (as under C&F and CIF terms) the goods remain the consignor's property until their delivery is taken by the consignee upon their arrival at the destination, and payment of the consignor's invoice. (2) If freight is paid by the consignee (as under FOB terms) the goods become the consignee's property when handed over to the carrier against a bill of lading.
    • Container, Containerized: Stowed and shipped, and handled and delivered, as a unit load device (ULD).
    • Unit load device (ULD): Standardized cargo container for air, land, or sea transportation.

Merchant Vessels now formally spread across A, M, R, and T-class with occasional support from others

- Maksim-Smelchak (talk) 20:05, 2 June 2019 (EDT)
Merchant Vessel Letter Code Comparison
Class Mission Class Codes Indication/s (Mission) Freight Volume Remarks
A-class Merchant Vessels (Tramps) Non-Bulk Freight (Cargo & Low-volume Passengers) Low Military Auxiliaries now go to Q-class
  • Traders or Tramps remain
  • All manner of traders: Free, Deep, Far, etc.
R-class Merchant Vessels (Liners) Non-Bulk Freight (Medium Cargo & Medium-volume Passengers) Medium R now a dedicated merchant code
  • Raiders go to PR
  • Battle riders now classified by role or size (...becomes a secondary modifier)
M-class Merchant Vessels (Freighters) Bulk Freight High No changes although most named liners go to R-class
T-class Merchant Vessels (Tankers & Transports) Bulk Freight Very High T-class are now dedicated transports and tankers
  • Tenders go to V-class or elsewhere depending on role
  • Patrol ships go to E-class if escorts and H-class if system defenders or security vessels
  • Tugs go to Q-class or U-class

The confusion between R and M must be switched, and I want us to re-evaluate the decisions made here. Rje (talk) 16:41, 17 March 2022 (EDT)

Ship Navbar (2019)[edit]

Line Combatants (Primary Combatants)

  • B-class Battleship
  • C-class Cruiser
  • O-class Orty
  • V-class Carrier

Escort Combatants (Secondary Combatants)

  • D-class Destroyer
  • E-class Escort
  • F-class Fighter
  • H-class Defender & Security

Military Auxiliary (Tertiary Combatants)

  • I-class Combat Transport
  • Q-class Combat Support
  • S-class Scout
  • U-class Utility
  • X-class Commo
  • Z-class Spec-Miss

Mercantile Commercial Ships

  • A-class Merchant
  • M-class Liner
  • R-class Liner
  • T-class Transport

Non-Mercantile Commercial Ships

  • G-class Commercial Industrial
  • J-class Prospectors
  • P-class Corsair
  • U-class Utility

Non-Commercial Ships

  • K-class Expedition
  • L-class Research
  • N-class Medical
  • Y-class Private

System Craft

  • WO-class Space stations (Orbital Complexes)
  • WS-class Satellites
  • WB-class Barges

Ship Types Notes (2018)[edit]

I've been informed, though can't confirm, the book Agent of the Imperium has a new set of ship type codes. Because the wiki uses our own set of Ship type codes, Ship Hull Designations, Military Starship Types, and Civilian Starship Types.

Can someone post the list from the book to see what changes we would need to make to synchronize the two lists.

- Tjoneslo (talk) 12:25, 7 January 2018 (EST)

Yes, I will post some of my notes.

  • We should also post at CotI and at FB.
- Maksim-Smelchak (talk) 16:36, 7 January 2018 (EST)

Agent of the Imperium Notes (2017-19)[edit]

Imperial Navy Ship Classification per Agent

Agent type Agent Type Code Wiki Type Wiki type Code
Minor 1 A Auxiliary A
Battle 2 B Battle B
Cruiser C Cruiser C
Seige S SmallCraft S 》 U or F or Q
Carrier V Carrier V
  • Here the only real difference is the S (Seige vs Smallcraft).

1 - aka Auxiliary.
2 - aka Battleship, Capital Ship, Dreadnought, Primary, Ship-of-the-Line.

ID-2/3: Mission-2:

These are largely T5 MODIFIER codes, rather than primary codes. Rje (talk) 16:51, 17 March 2022 (EDT)
Agent Mission Agent Mission Code T5 Mission Modifier Wiki Mission (Primary Tasking) Wiki Mission code
Armored A Armored Heavy 》 Tramp Vessel A
Beam, Battle B Battle Battle B
Monitor D Defense Destroyer D
Fast F Fast Frigate 》 Fighter F
Flag F Flag * F
Fighter F - * F
Strike K - Courier 》 Expedition K
Lander L Lifeboat Light 》 Lab L
Missile M - Missile 》 Freighter M
Orbital O - * O
Quarantine Q Quarantine Decoy 》 Combat Support Ship Q
Rider R Rider Rider 》 Liner R
Slow S Slow Strike 》 Scout S
Extended Ship Classification System XSCS: "Where Primary Classification addresses Dreadnoughts and their brethren, the Extended Classification system is more comprehensive and includes a much wider range of ships. The system is too extensive to be addressed here." (Annotated PDF, p. 230)

AOTI Novel Ship List[edit]

ID-1/2/3:	Type:	        Remarks:	             Page/s
* BB Ikaniil	BB  (Capital)	Beam Battleship	             - (Pgs. 9, 18)
* BKF Kobokoon	BKF (Capital)	Strike Battleship, Flag      - (Pgs. 29, 34 (per footnote in annotated PDF version, p.21))
* CB Stalwart	CB  (Capital)	Battlecruiser, INS Stalwart. - (Pg. 38 (per footnote in annotated PDF version, p.28))
* ISS Talon	ISS (Capital)	Imperial Scout Service (Cruiser) - (Pgs. 45, 50)
* BF Extreme	BF  (Capital)	Battleship, Flag             - (Pgs. 52, 56 (per footnote in annotated PDF version, p.39))
* AF Ukaammur	AF  (Non-capital) Fast Auxiliary/Fleet Corvette Ukaammur - (Pgs. 57, 60 (per footnote in annotated PDF version, p.44 - "AF. Auxiliary Fast. 
                                                                              The code is potentially ambiguous: it could equally be interpreted as Auxiliary Flag or 
                                                                              Auxiliary Fighter (both of which make little sense)."))
* BB Courageous BB  (Capital)	Beam Battleship	             - (Pgs. 62- 63)
* AF Kadalesh	AF  (Non-capital) [??]                       - (Pgs. 65, 67)
* [Lioness Class] [??] (Capital)  [??]                       - (Pg. 65)
* BBF Courageous BBF (Capital)	Beam Battleship, Flag        - (Pgs. 67, 250 (per footnote in annotated PDF version, p.50))
* BB Inarik	BB  (Capital)	Beam Battleship	             - (Pg. 84)
* BKF Basiiri	BKF (Capital)	Strike Battleship, Flag      - (Pg. 100 (per footnote in annotated PDF version, p.74))
* INS Argushii	[AF?]           TF-HA63	                     - (Pgs. 111, 122, 227-228 (TF = Fast Transport, per footnote in annotated PDF version, p.83))
* BMF Koliliss	BMF (Capital)   Missile Battleship, Flag     - (Pg. 116-117, 119-120 (per footnote in annotated PDF version, p.87))
* BB Kokaasii	BB  (Capital)	Beam Battleship	             - (Pg. 96-99: annotated PDF version).
* [Yacht]	???	        Marquis Pryden.	             - (Pg. x)
* BK Lioness			                             - (Pgs. 189-190, 200-201, 206, 211)

Hey Thomas, please note that my notes aren't 100% complete. I still need to review the rest of the book for this kind of detail.

- Maksim-Smelchak (talk) 17:35, 7 January 2018 (EST)

Thank you, Wayne for upgrading the list.

- Maksim-Smelchak (talk) 07:19, 18 June 2019 (EDT)

From Marc on the AOTI codes:

The US Navy has an extensive classification system for vessels (and aircraft). But the admirals and the public just say:

- Battleship - Carrier - Cruiser - Destroyer

Often while not being clear on what the mission or role is.
I do that with Battle, Siege, and Cruiser.
Marc Miller (March 19, 2022)