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Class J starship

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For other uses, see J class starship.

The Class J starship was a type of Federation starship in use by Starfleet in the 23rd century. A large design that rivaled the Constitution-class in size, it was considered old by 2266. Starfleet continued to use ships of the type for Starfleet Academy training missions, despite the feeling of some officers, such as Commodore José Mendez, that the class should be decommissioned. (TOS comic: "Captain's Log: Pike", TOS novel: Burning Dreams)

Although most Class J vessels had indeed been retired from service by the 2260s, Starfleet Command began a mass recommissioning of the class in 2267 as part of the effort to make Starfleet ready for the upcoming conflict with the Klingon Empire. (TOS novel: Demands of Honor)

Commodore Mendez identified and reported a number of structural flaws in the vessels, including the dangerously insufficient radiation safety systems in the engineering spaces. The engineering blast doors were too far down the connecting corridor to prevent radiation from spreading through the ships' Jefferies tubes and turbolift shafts. (TOS novel: Burning Dreams)

Known vesselsEdit

AppendicesEdit

ConnectionsEdit

Starship classes of the Federation Starfleet
subclass groups

Akira (ArmitageThunderchild) • Ambassador (AlaskaYamaguchi) • Apollo (Akula light cruiser frigate) • Avenger battlecruiser (Arbiter) • Chesapeake (Mongrel) • Cheyenne (DakotaStargazer) • Concorde (Geneva battlecruiserPresidio) • Constellation (Challenger deep space explorer) • Chimera heavy destroyer (Manticore) • Constitution (AchernarBonhomme RichardTikopaiEnterpriseExeterExcaliburVesper) • Danube (Yellowstone) • Decatur (Dreadnought) • Defiant (GallantIncursionSao PauloVigilant escort) • Dervish (GryphonHermes escortMaelstromTempest) • Destiny (NimbusOracleTrident) • Excelsior (BismarckKirovNew JerseyResolute) • Galaxy (Andromeda (25th century)CelestialEnvoyGalaxy XMonarch cruiserVenture cruiserYamato dreadnought) • Hermes scout (CygnusMonoceros) • Intrepid (BellerophonCochrane science vesselDiscovery (Federation)Pathfinder) • Kumari (CharalKhyzon) • Luna (CometPolarisSol) • Miranda (AntonReliantSoyuz) • Nebula (Magellan) • Norway (Oslo) • Nova (AuroraQuasarRhode Island) • NX (ColumbiaPoseidonOberth (Gagarin (23rd century)Sagan) • Olympic (HopeHorizon science vessel) • Prometheus (CerberusHephaestusHestiaPhoenix) • Ptolemy (DollondDopplerKeppler) • Remora (Charger) • Saladin (CochiseSiva) • Santa Fe (Newport) • Saber (GladiusRapierUshaan) • Sentinel (EmissaryNomad cruiserVanguard) • Solanae (HeliosMontgomeryOmega) • Sovereign (ImperialRegentMajesticNoble cruiser) • Steamrunner (Zephyr) • Vesta (AventineRademaker) • Wells (Polarity)

Ufp-emblem Starfleet Command logo
other named classes

AA classAakennAchillesAdvanceAegianAeolusAerieAkula destroyer escortAmbassador HardinAndesAndorAndromeda (24th century)AntaresApacheAquariusArcherArchimedesArielAscendantAtroxAvenger (23rd century)BabcockBaderBakerBaton RougeBodeBolarusBonaventureBradburyBrentonCanadaCanopusCapella (23rd century)Capella (24th century)CastorCentaurCentaurusChallengerChandleyChariotChimeraChristopherCle DanCochrane transportColumbiaContinentContortrixCopernicusDaedalusDauntlessDeckerDefenderDeltaD'KyrDenevaDerfDrexlerDurrettEagleEclipseEdwardEinsteinEl Doradofuture EnterpriseEpochEpsilonEternalFederationFenlonFermiFijiFreedomFrontierGagarin (24th century)GalenGangesGenevaGenserGracefulGraysonGriffonGuardianGeminiHaleHermes fast cruiserHestonHoganHokule'aHorizon cruiserIcarusIlthirinIndomitableIntrepid (light cruiser)IowaIstanbulIwo JimaClass JJupiterKarekhKeithKethkinKievK'KmarakKolm-AnKorolevLarsonLauroLaweyaLegacyLenthalLexingtonLibertyLokiLoknarLondonMakinMannMarklinMarshallM'BengaMediterraneanMercedMercury (courier)Mercury (escort)MerianMessierMidwayMissionMissouriMobulaiMoKalMoscowMulciberNachthexen) • NarcineNautilusNelsonNew OrleansNiagaraNoble laboratory vesselNomad escortNorthamptonOberonOdinOdysseusOdysseyOkinawaOppenheimerOrionOsakaOuroborosOverfieldPaladin battlecruiserPaladin destroyerPaladin (24th century)PerseusPioneerPhalanxPhantomPhiladelphiaPinnaclePiperPolluxPortsmithPremonitionProximaPyotr VelikiyPyreneesRakotaRanger battlecruiserRanger cruiserRanger scoutRenaissanceRickenbackerRigelRochesterRoyal SovereignSagittariusSamsonSawyerScorpioScryerScyllaSequoiaSevaijenShi'KahrSierraSolarSpringfieldSurakSydneyTangentTempestTheophrastusThomas PaineThucydidesThufirTiberiusTiconderogaTheseusTritiumTyphonTyphoonUkoraUlyssesUralUtahVenture scoutVigilant scoutVoyagerWambunduWilkersonWei-FaWellingtonYamatoYorkshireYorktownZodiacunnamed

general type

Defiant pathfinderJohn GlennHuronRaging QueenSun TzuValley ForgeFederation assault shipFederation cargo shipFederation colony shipFederation construction shipFederation cruiserdeep galaxy shipFederation frigateFederation galaxy shipFederation holoshipFederation light cruiser (Constitution-variant light cruiserIntrepid-variant light cruiser) • Federation medium cruiser (Excelsior-variant medium cruiser) • Federation mining freighterFederation repair shipStarfleet tanker

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