Largecraft

Line Combatants (Primary - Capital)				Escort Combatants (Secondary - Subcapital)				Military Auxiliary (Tertiary)
B- Battleship	C- Cruiser	O- Ortillery	V- Carrier	D- Destroyer	E- Escort	F- Fighter	H- Defense/Security	I- Combat Transport	Q- Combat Support	S- Scout	U- Utility	X- Commo	Z- Special

Mercantile Commercial Ships (Trade & Profit)				Non-Mercantile Commercial Ships (Industry & Profit)					Non-Commercial Ships (Nonprofit)			System Craft (Intrastellar)
A- Tramp	M- Freighter	R- Liner	T- Transport	G- Industrial	J- Prospector	K- Expedition	P- Corsair	U- Utility	L- Science	N- Medical	Y- Private	WB- Barge	WA- Satellite	WO- Space Station

Largecraft: Vessels at or over a hundred tons in weight or displacement are considered to be largecraft.

• While most bigcraft are considered to be NAFAL boats, most largecraft are considered FTL craft with jump drives.
• The two definitions possess some semantic overlap.
• Largecraft are the vast majority of star wandering vessels that are not smallcraft nor bigcraft.
• Some very early technology vessels were intended for interstellar voyages despite having only NAFAL engines and these antiquated vessels are considered bigcraft. They include sleeper ships and generation ships.

Library Data Referral Tree

Please refer to the following AAB Library Data for more information:
Starship:

• Starship User Types
  • Civilian Ship
  • Military Ship
  • Non-Commercial Vessel
  • Paramilitary Ship

• Advanced Ship Classifications
  • Ship Mission Code / Supraclass
  • Ship Type Code / Superclass
  • Ship Class Code / Class
  • Model (TL)
  • Bloc (Lot)

• Basic Ship Classifications
  • Adventure Class Ship
  • Battle Class Ship
  • Capital Ship
  • Fleet Class Ship
  • Size-Role Classification
  • Subcapital Ship
  • QSP
  • USP
  • World Class Ship

• Ships by Function
  • Bigcraft
  • Boat
  • Capital Ship
  • Largecraft
  • Non-starship
  • Smallcraft
  • Spaceplane
  • Spaceship
  • Starship
  • Subcapital Ship
  • Subcraft
  • System Craft
  • Warship

Speed of Travel

• Astronomical Unit (AU)
• FTL
• Light Speed (c)
• Light-week (lw)
• Light-year (ly)
• NAFAL (STL)
• Parsec (pc)

Description (Specifications)

Largecraft is the general catchall category for significant, star faring FTL vessels. The category excludes smallcraft and bigcraft… and little else. Almost any large starcraft is a largecraft. The term is so ubiquitous that few feel a need to mention it.

Naval Ship Synopsis by Size-Role

These vary in tonnage and in their intended function or role.

Ship Classification by Size
#	Type	Tonnage	Examples	Remarks
1.	Smallcraft	0 to 99 tons	Shuttle Gig Fighter	Smallcraft are typically Subcraft, designed to be carried by carrier craft.
2.	Spacecraft	100 tons or larger	SDB Rider Monitor	Spacecraft are in-system vessels, lacking interstellar drives. Some Spacecraft are Subcraft, designed to be carried by carrier craft.
3.	Adventure Class Ships (ACS)	100 to 2,499 tons	Merchant Escort Mercenary Cruiser	Adventure Class ships are usually jump-capable. They serve many roles including customs, patrol, planetary defense, tramp freighters, etc.
4.	Battle Class Ships (BCS)	2,500 to about 1,000,000 tons	Cruiser Bulk Trader Battleship Sleeper Ship	Battle Class ships are warships. They are usually jump-capable. Such ships require major investment and only service major roles including megacorporate interstellar trade, warships, Capital Ships, and major endeavors.
5.	World Class Ships (WCS)	Larger than 1,000,000 tons	Loeskalth planetoid generation ship.	World Class ships are beyond expensive and represent suprapolity-level investment. They take many years to build. This class represents immense World-Ships, very large Super Dreadnoughts, Superweapons, etc. Operational staff are typically residents as much as crew. These ships are interacted with as worlds or events, rather than ships.

History & Background (Dossier)

The rise of size-based ship terminology came from the unique properties of the conventional jump drive in Charted Space. Jump Drives from TL-10 to TL-15 require a minimum mass of 100.0 tons or larger. Proper jump bubbles and fields cannot be created with less mass displacement. Some day, someone will miniaturize the technology and be able to create a jump transition bubble at any mass displacement, but the peculiarities of the contemporary technology preclude smaller craft. This greatly affects naval architecture.

Bigcraft vs. Largecraft

• Bigcraft are NAFAL boats over a 100 tons without a jump drive.
• Largecraft are FTL vessels over a 100 tons with a jump drive.

References & Contributors (Sources)

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.

• Traveller Wiki Editorial Team
• Author & Contributor: Lord (Marquis) and Master of Sophontology Maksim-Smelchak of the Ministry of Science