Size-Role Classification

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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

The Size-Role Classification, often abbreviated as Size-Cat or Size-cat, is a measure of a ship's size in tonnage and its rough correspondence with its mission roles, logistics, and other vessel characteristics.

Technical Data.jpg

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



    Description (Specifications)

    No information yet available.

    Generalized Size Classes

    1. Smallcraft
    2. Bigcraft
    3. Largecraft
    4. Adventure Class Ship
    5. Battle Class Ship
    6. Fleet Class Ship
    7. World Class Ship

    Naval Ship Synopsis by Size-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)

    No information yet available.

    Different Naval Understandings

    No information yet available.

    Miniaturization Trends Within Charted Space

    No information yet available.

    Ship Tonnage & Organizational Schema

    A number of Basic Ship Size-Role Classifications are based upon the relative size of a ship in tonnage terms:

    But this is problematic, because by the end of every three tech levels (...or tech epoch), the maximum of minimum size of naval architecture, these parameters change. The Imperial Navy and the Imperial Interstellar Scout Service have employed a system based upon rough standards based on tech epochs over its many centuries of experience.

    TL:13-15 Tonnage Standards

    Tonnage Standards by Tech Epoch: TL:13-15
    Size-Class Tech Epoch Tonnage Remarks
    ACS TL:13-15 100 to 2,499 tons These vessels can be operated by small crews, supported by minor organizations, and serviced at almost any major shipyard or starport.
    • They vessels tend to conduct the lion's share of private and commercial activity for any given sophontic society at this tech epoch.
    BCS TL:13-15 2,500 to 249,999 tons These vessels require significant shipyards to construct and represent large-scale investment of funds, personnel, and resources.
    • They conduct all of paramilitary and military missions of a major polity.
    FCS TL:13-15 250,000 to 999,999 tons Around 500k tonnage is considered the largest practical size in terms of cost-time benefit.
    • Only a limited number of these vessels may be built so only major combatants, very serious industrial & scientific applications, or major government projects will build ships in this size range.
    WCS TL:13-15 1,000,000 tons or larger Such vessels are beyond expensive and represent suprapolity-level investment in many, many RU's that take years to manufacture and sometimes decades.
    • These ships are almost impossibly large for their time and take several generations of leaders and a focused society to construct. They are only built for immensely important missions.

    TL:10-12 Tonnage Standards

    Tonnage Standards by Tech Epoch: TL:10-12
    Size-Class Tech Epoch Tonnage Remarks
    ACS TL:10-12 100 to 1,999 tons These vessels can be operated by small crews, supported by minor organizations, and serviced at almost any major shipyard or starport.
    • They vessels tend to conduct the lion's share of private and commercial activity for any given sophontic society at this tech epoch.
    BCS TL:10-12 2,000 to 199,999 tons These vessels require significant shipyards to construct and represent large-scale investment of funds, personnel, and resources.
    • They conduct all of paramilitary and military missions of a major polity.
    FCS TL:10-12 200,000 tons to 749,999 tons Around 250k tonnage is considered the largest practical size in terms of cost-time benefit.
    • Only a limited number of these vessels may be built so only major combatants, very serious industrial & scientific applications, or major government projects will build ships in this size range.
    WCS TL:10-12 750,000 tons or larger Such vessels are beyond expensive and represent suprapolity-level investment in many, many RU's that take years to manufacture and sometimes decades.
    • These ships are almost impossibly large for their time and take several generations of leaders and a focused society to construct. They are only built for immensely important missions.

    TL:7-9 Tonnage Standards

    Tonnage Standards by Tech Epoch: TL:7-9
    Size-Class Tech Epoch Tonnage Remarks
    ACS TL:7-9 100 to 999 tons These vessels can be operated by small crews, supported by minor organizations, and serviced at almost any major shipyard or starport.
    • They vessels tend to conduct the lion's share of private and commercial activity for any given sophontic society at this tech epoch.
    BCS TL:7-9 1,000 to 149,999 tons These vessels require significant shipyards to construct and represent large-scale investment of funds, personnel, and resources.
    • They conduct all of paramilitary and military missions of a major polity.
    FCS TL:7-9 150,000 to 499,999 tons Around 100k tonnage is considered the largest practical size in terms of cost-time benefit.
    • Only a limited number of these vessels may be built so only major combatants, very serious industrial & scientific applications, or major government projects will build ships in this size range.
    WCS TL:7-9 500,000 tons or larger Such vessels are beyond expensive and represent suprapolity-level investment in many, many RU's that take years to manufacture and sometimes decades.
    • These ships are almost impossibly large for their time and take several generations of leaders and a focused society to construct. They are only built for immensely important missions.

    References & Contributors (Sources)

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    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