Immense Class

From Bravo Fleet Infobase

Federation Faction


Class Information
Date Entered Service:




Total Compliment:



Up to 6500

Starbases in Service:

View On BFMS

Tactical Systems
Energy Weapons:

60x Type-XII phaser arrays

Torpedo Launchers:

18 dual launch platforms


Multi-Layered Shielding System


Tritanium/Duranium hull structure


The Immense Class starbase is Starfleet’s most heavily fortified frontier space station in use in the late-24th Century. Compared to other classes of starbases, the Immense-class is aimed at providing an intense tactical presence in highly valuable strategic locations on the edges of Federation space.

Class Information

In 2369, the Federation had taken over administrative duties of Deep Space 9, a former Cardassian station, which in its earlier days went from a simple ore-processing station to one of the most important stations (both politically and strategically) in Federation care due to its being the guardian of the recently discovered Bajoran wormhole, the only stable wormhole to have been found. Over the next few years Starfleet would work really hard in upgrading the station’s defences so to ensure the Bajoran claim on the wormhole was strong and to defend against an imminent Dominion attack.

It was during this time that Starfleet was aware of how well a station of its size and calibre was able to remain firm in its conviction on the front lines. Starfleet wanted to make its own class of station that was of a similar ability and size. This design was named the Immense-class and it went through a number of changes in its early days, however by 2378 it was ready to be constructed. This mid-sized station would be able to support an entire task force, house and store plenty of supplies and provide a good defence position to protect Federation interests in the area it was in.

Construction of the first Immense-class starbase started in late 2378 in the Beta Quadrant. Deep Space 19 was finished by early 2381 and was made fully operational thereafter. Deep Space 19 became successful in supporting the Fourth Fleet’s Task Force 21 as it dealt with security threats from nearby hostile races while expanding the Federation’s sphere of influence in the area as well as exploring parts of the Beta Quadrant that had been un-chartered. Deep Space 19 was tested during a number of incidents where it was attacked by antagonistic races, including the Borg. However the station survived each assault and would become the central hub for local diplomatic efforts in maintaining peace with the local powers.

Other Immense-class stations were quickly built during the early 2380s, including Starbase 900 that was built in the Delta Quadrant after the discovery of a stable Iconian Gateway. These classes of starbase have served the Federation well on its borders and will most likely continue to do so for the foreseeable future.

Starbase Specifications

Basic Information
  • Dimensions: 3,330 meters (L) x 975 meters (895 meters for outriders) (W) x 2,330 meters (677 meters for outriders) (H)
  • Decks: 405
  • Expected Duration: 200 years
  • Time Between Resupply: 10 years
  • Expected Refit Cycle: 30 years
Crew Compliment
  • Total Crew: 3,275
    • 375 Officers
    • 2,700 Enlisted
    • 200 Marines

  • Emergency Capacity: 20,000
Station Keeping / Other Propulsion Systems
  • Thrusters: Fusion Thruster Assemblies
  • Other Engines: FIPG-X1 impulse system (for station keeping)
Offensive Systems



  • 18 Dual Launch Platforms


Defensive Systems
Primary Systems

Power Generators:

  • 10 Fusion Generators

Antimatter Generators:

  • 3 FMAPG-X1 M/ARA Antimatter Generators
  • Computer Systems: LCARS Controlled Bio-neural gel pack computer systems
  • Transporters:
    • 40x Eight-Person Personnel Transporters
    • Transporter Range: 45,000 kilometers
  • Sensor Range: 50 lightyears
  • Communications Range: 55 lightyears
Docking & Auxiliary Craft


STARSHIP BAYS: 4 Main Hull, 1 per Outrider



  • Shuttles: 40
  • Workbees: 60
  • Runabouts: 10
  • Fighters: 12
Other Notes


  • Holodecks
  • Shopping centre
  • Public dining
  • Recreation facilities
  • Parks and gardens
  • Hospital


  • Starship Bays
    • 4 main hull (135mx54m, able to fit 1 Nova/Dumont/Diligent/Defiant class in each)
    • 1 each in the outrider stations (1 set of space doors, 250mx250m, 500m long, able to hold 1 Sovereign class in lower half of bay and several smaller classes in upper half)
  • 2 Drydocks (width is 270m wall to wall, 300m long)
  • 4 landing pads at top of main hull (Able to land 1 Intrepid class or smaller each)

Deck Listing

Main Station

Deck/Deck Range Details/Specifications of Deck
Decks 1-10
  • Subspace Communication Network Hub Control
  • Docking Domes 1-4
  • Runabout Launch Pads 1-4
  • Shuttlebay 1-4
Deck 11
  • Main Operations
  • Station Commander’s Office
  • Briefing Room
Decks 12-18
  • Station Commander’s Quarters
  • Senior Officer’s Quarters
  • Command Level Offices
Decks 19-30
  • Promenade
  • Holosuites
  • Arboretum
  • Gymnasiums and Sports Facilities
Decks 31-50
  • Main Armoury
  • Brig 1-10
  • Detention Cells 1-25
Decks 51-100
  • VIP Quarters
  • Enlisted Crew Quarters
  • Transporter Rooms 1-10
  • Conference Rooms
Decks 101-115
  • Main Infirmary
  • Medical Labs
  • Pharmacy
  • Morgue
Decks 116-129
  • Main Computer Core
  • Life Support and Environmental Systems
Decks 130-150
  • Main Science Labs
  • Stellar Cartography
  • Astrometrics Lab
  • Cargo Storage Facilities
  • Junior Officer’s Quarters
  • Enlisted Crew Quarters
Decks 151-160
  • Civilian Living Facilities
  • Enlisted Crew Quarters
  • Cargo Storage Facilities
  • Transporter Rooms 11-20
Decks 161-170
  • Enlisted Crew Quarters
  • Cargo Storage Facilities
  • Primary Cargo Transporters
Decks 171-250
  • Primary Weapons Systems
  • Cargo Storage Facilities
  • Enlisted Crew Quarters
Decks 251-260
  • Marine Barracks
  • Marine Briefing Room
  • Marine Training Holosuites
  • Transporter Rooms 21-30
Decks 261-280
  • Main Docking Bay
  • Docking Domes 1-2
  • Runabout Launch Pads 3-4
  • Drydocks 1-2
  • Starship and shuttle bay 1-4
  • Fighter Launch Bay 1-3
Decks 281-295
  • Main Engineering Facilities
  • Main Fusion Reactors
  • Enlisted Crew Quarters
  • Transporter Rooms 31-35
Decks 296-320
  • Enlisted Crew Quarters
  • Civilian Crew Quarters
  • Hazardous Material Storage
  • Long Term Storage Facilities
  • Fusion Matter Storage
  • Deuterium Storage Tanks
Decks 321-340
  • Enlisted Crew Quarters
  • Transporter Rooms 36-40
  • Fusion Matter Storage
  • Deuterium Storage
Decks 341-368
  • Maintenance Bay
  • Waste Management
  • Emergency Environmental Controls
  • Temporary Guest Quarters
Decks 369-380
  • Enlisted Crew Quarters
  • Auxiliary Fusion Generators
  • Secondary Docking Bays
  • Drydocks 3-4
Decks 381-405
  • Secondary Maintenance Bays
  • Secondary Subspace Communication Network Control

Active Simulations

Official Starbase Specifications
Federation Starbases AuroraImmenseJupiterK ClassNorPresidiumPulsarRegulaRegulusSpacedockUnity
Klingon Starbases yoD QIn'je
Romulan Starbases ch'Haven
Cardassian Starbases Nor