Largecraft

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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.
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Description (Specifications)[edit]

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[edit]

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

Ship Classification by Size
# Type Tonnage Examples Remarks
1. Smallcraft 0 - 99 tons Smallcraft are typically Subcraft, designed to be carried by carrier craft.
  • Small/Light ACS Craft
  • Ship-Type Code "Q-"
2. Spacecraft 100 tons
or larger 		Spacecraft are in-system vessels, lacking interstellar drives. (Occasionally known as "Bigcraft" or "Spaceships" or "System Ships")
3. Starships 100 tons
or larger 		Starships are vessels with interstellar drives. (Occasionally known as "Largecraft")
4. Adventure Class Ships (ACS) 10 tons
-
2,400 tons 		Adventure Class Ships are usually jump-capable.
  • Small Adventure Class (Small ACS): 10 ton - 100 ton ("Smallcraft")
  • "Standard" Adventure Class (Small ACS): 100 ton - 1000 ton
  • Large Adventure Class (Large ACS): 1000 ton - 2400 ton ("Very Light" Battle Class Ships (BCS))
5. Battle Class Ships (BCS)
Capital Class Ships (CCS) 		2,500 tons
-
250 ktons 		Battle Class Ships are warships and comprise both smaller Capital Primary Warships as well as Subcapital Secondary Warships that include Cruisers & Fleet Escorts. They are usually jump-capable.
  • Civilian corporate concerns may use the term Bulk Class Ships for vessels they field in this size category.
  • Such ships require major investment and only service major roles including megacorporate interstellar trade, warships, Capital Ships, and major endeavors.
» "Subcapital Ships": Escort Cruisers: Provincial/Colonial Cruisers; Heavy System Defense Boats
  • Small Battle Class 2 ("Light" BCS): 2,500-ton - 10-kton
» "Subcapital Ships": Fleet Escorts; System Defense Cruisers
  • "Standard'" Battle Class ("Standard" BCS): 10-kton - 100-kton
» "Subcapital Ships": Cruisers (Fleet & Independent); System Dominance Vessels; System Monitors
» "Light & Standard Capital Ships / Battleships"; "Supermonitors"
* Capital Class Ships (CCS) 100 ktons
-
250 ktons 		The Higher End of Battle Class Ships and the Lower End of Fleet Class Ships (100,000 - 250,000 tons) have had varying categorizations to various commentators. The category is generally seen to overlap both, depending upon one's chosen definition of Battle Class and Fleet Class. [1]
6. Capital Class Ships (CCS)
Fleet Class Ships (FCS) 		100 ktons
-
1 Mton 		Fleet Class Ships are Capital Primary Warships. They are usually jump-capable.
  • Such ships require major investment and only service major roles including major megacorporate interstellar trade and capital projects, Heavy Capital Warships, and other similar major endeavors.
7. World Class Ships (WCS) > 1 Mton 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.
  • Small World Class 1 ("Very Light" WCS): 100-kton - 250-kton ( = "Capital Class Ships" (CCS): "Heavy" Battle Class Ships (BCS))
  • Small World Class 2 ("Light" WCS): 250-kton - 1-Mton ( = "Fleet Class Ships" (FCS))
  • "Standard" World Class ("Standard" WCS): 1-Mton - 10-Mton
  • Large World Class ("Heavy" WCS): 10-Mton - 25-Mton +

History & Background (Dossier)[edit]

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[edit]


Library Data Referral Tree[edit]

Please refer to the following AAB Library Data for more information: (Click "Expand" to reveal)

Starship:

  • Speed of Travel
    • NAFAL (STL) - (Not As Fast As Light) / (Slower Than Light)
    • Light Speed (c)
    • FTL - (Faster Than Light) - "Superluminal"
    » Imperial Standard Astronomical Unit
    » Solomani Parsec
    » Vilani Parsec ("Deshi")
    » Imperial Standard Parsec


    References & Contributors (Sources)[edit]

    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 Mongoose Publishing or by permission of the author. The page history lists all of the contributions.
    1. ↑ T5.10 Book 2, p.31 defines the BCS range as 2,500 tons - 100 ktons and the FCS range as > 100 ktons, whereas the MgT2 Starship Operators Manual, p.6 defines the BCS range as 2,500 tons - 250 ktons and the FCS range as 250 ktons - 1 Mton. The Capital Class (CCS) range is introduced here to define the overlap (100 ktons - 250 ktons). - WHULorigan
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