Onimaru Class

From Bravo Fleet Infobase

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Class Information


Ship's Complement
Crew Complement:


Overall Dimensions

520 meters


325 meters


121.6 meters



Warp Performance
Cruising Speed:

Warp 7

Energy Weapons:

14 Type-XII phaser arrays

Torpedo Launchers:
  • 1 forward rapid fire torpedo launcher
  • 4 aft burst-fire torpedo launchers
Torpedo Payload:

Multi-Layered Shielding System

Auxiliary Craft






Class Description

During the near 40 years since the development of the Galaxy class starship began, Starfleet Engineering and the ASDB spent many years analysing the performance of every class of ship to enter service. Technical upgrades and overhauls to different ships often resulted in improvements being made to the next class in development to ensure that Starfleet always had vessels with cutting edge of technology and that they learnt from the mistakes and faults of other systems. Arguably, two of the most successful starship designs to grace the fleet during the intervening years were the Galaxy and Sovereign class starships, but even in 2382 the Galaxy took an age to produce and was beginning to fall behind the times whilst the Sovereign class had diverted away from being a ship of exploration and now fulfilled combat and command roles around the fleet. Many of the fleets dedicated exploration vessels were aging and falling well behind the times. The Excelsior was on the verge of retirement whilst the Galaxy, Nebula and other sister ships were becoming outdated themselves. Newer exploration vessels didn’t have the power resources to include the most up to date weapons systems. This led Starfleet to request that a team at the ASDB consider designs for a ship that essentially had the best of both worlds; sensor suites and science facilities to rival a Galaxy class but enough armaments so that she could defend herself against the modern threats of species such as the Dominion.

Many designs, both new and already on the drawing board, were considered for the project but most were too similar in design to the Sovereign or too frail to withstand modern threats. No one ship bridged the two classes as Starfleet desired until an Engineer, Dr Ross Mitchell and his partner, Lieutenant Commander Nilani Azulas, submitted a design for the Onimaru-class starship.

Initial designs proved ideal for what Starfleet had requested. Not only had they planned for the systems to give it the teeth they desired but also a science suite to rival the Galaxy, the design was the ideal cross between the two. Permission was granted for initial simulations and construction to begin on the class prototype. Initial construction of the prototype began in 2382 and moved along quickly. The design integrated many of Starfleet’s newest technologies whilst combining elements from both the Galaxy and Sovereign-classes.

The ship benefited from the impressive defensive systems of the Sovereign class including the multiphasic and regenerative shielding systems and the type-XII phaser arrays whilst she was due to include the saucer separation capability of the Galaxy class. This system was precluded from the final design for the initial vessel in order to make additional room for an increased shuttlebay capacity and additional cargo bays, sensor suites and a new tactical astrometrics suite.

The initial vessel completed construction in early 2385. Designated as the USS Onimaru, her initial cruise was successful, with surprisingly few problems presented themselves, aside from issues resulting from the uprated warp core she had been fitted with. Power was often below the average desired, which required extensive tweaking over several months to correct. Nevertheless, Starfleet was pleased with the results and, as the Onimaru returned to dock in November 2386 after a successful year of service, the class was deemed enough of a success to push forward with an initial batch of five new vessels to be constructed. By mid-2388, the first three of the completed Onimaru class vessels were flowing from the shipyards.

Class History

2382: Design work begins. New M/ARA design is standardized for the class. Galaxy and Sovereign designs modified and approved. Full specifications are forwarded to Utopia Planitia for designations. USS Onimaru production begins with a projected 3 year turnover for the prototype ship. Design on saucer separation mechanisms arrive from the Vulcan Construction Agency and considered for inclusion but ultimately rejected. Torpedo launchers from Sovereign project used. Saucer section nears 20% chassis completion.

2383: The Stardrive section nears chassis completion. Primary and secondary chassis's now at 80% completion. Computers are delivered for fitting work. Bridge module fitted based on modified Galaxy module.

2384: Work continues on habitat and outer hull sections for USS Onimaru. Late year, computer cores are activated and ship functions begin to be transferred from station control to ship control. Computer system is soon operating at 70% of maximum. System expected to become self-aware within the year. Warp core begins primary testing. Ablative Armor integrated. Antimatter regulation control and phaser power regulation is found to be outside acceptable levels. Stardrive section near completion with final attachment of navigational deflector array.

2385: Type-XII phaser arrays installed. Warp Core passes Review Three and is tested to 85% peak efficiency. Computer system fully self-aware and umbilicals from the station are cut as the ship becomes self-sufficient. Impulse systems pass Review Three and begin autonomous low level power control. Secondary Backup Generators are shut down and become Auxiliary system control. USS Onimaru leaves dry dock for primary testing.

2386: USS Onimaru returns to Utopia Planitia late in year and warp stress coating, final exterior markings and paint is applied. USS Onimaru begins deep space assessments. On 24th November 2386 the USS Onimaru is officially commissioned by Starfleet during a brief ceremony. Bridge plaque is put in pride of place and Captain Jon’aal takes command. USS Onimaru is ordered to begin shakedown cruises estimated to last two years.

2388: Vessels two, three and four of the Onimaru class are completed around the Federation.

Official Federation Starship Specifications
Starship Classes 24th Century AkiraAmbassadorAntaresAresArgonautAscensionAtlantiaAquariusCardiffCerberusCentaurCenturyChallengerCheyenneConcordeDefiantDiligentDumontElysionExcaliburFreedomGalaxyGalaxy RefitInsigniaIntrepidKelvinLunaNew OrleansNebulaNorwayNovaOdysseyOlympicOnimaruPathfinderPrometheusRavenReliantRhode IslandRoninSaberSovereignSpringfieldSteamrunnerTitanVestaWallaceWildcat
Starship Classes 23rd Century AkulaCardenasConstellationConstitutionConstitution (Refit)CrossfieldEngleExcelsiorExcelsior (Refit)HooverMageeMalachowskiMirandaNimitzOberthOhioShelleyShepardSoyuzSydneyWalker
Starship Classes 22nd Century ColumbiaDaedalusFranklinNXNX Intrepid Yorktown