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For the registry prefix used by Starfleet, see NX.

The NX-class was a type of explorer starship in the United Earth Starfleet in service during the mid-22nd century. The NX-class was commissioned as an exploratory vessel as a medium for the new warp 5 engine that would form the basis of Humans first reach into the galaxy. (ENT episode & novelization: Broken Bow)

The first six ships of the class were named after the NASA space shuttle orbiters of the late 20th century. (ENT - The Romulan War novel: Beneath the Raptor's Wing)

History

22nd century

The NX-class was to be medium of the revolutionary warp 5 engine. The Warp Five Complex was dedicated by Doctors Zefram Cochrane and Henry Archer in 2119 on Earth. (ENT episode & novelization: Broken Bow)

On June 1, 2140, Commodore Maxwell Forrest approved the design of the NX-class. (ST reference: Federation: The First 150 Years)

By 2143, the NX Program was underway. Prior to the NX Project, Human ships were incapable of exceeding warp factor 2. A series of NX prototypes, their design mirroring the Phoenix warp ship prototype, were launched. NX-Delta, commanded by Duvall, successfully broke the warp 3 barrier in 2144. (ENT episode: "First Flight")

Enterprise NX-01 was the first NX-class starship built, registry NX-01. The ship was launched ahead of schedule in 2151, under the command of Captain Jonathan Archer, to transport the Klingon courier Klaang back to Qo'noS. Due to the early launch of the Enterprise, several systems—most notably the starship weapon systems—had not yet been completed. These weapon systems were completed in the field at a later date. (ENT episodes: "Broken Bow", "Fight or Flight", "Silent Enemy")

With a series of successful early missions, Starfleet decided to proceed with building further NX class ships. By 2151, three more NX class ships were in the early design stages. Construction of the unnamed NX-02 had begun by the time the Xindi attacked Earth in 2153. The ship, later named Columbia, was completed in November of 2154 and launched under the command of Captain Erika Hernandez. (ENT episodes: "Fortunate Son", "The Expanse", "Home", "Affliction")

In August 2155, the Challenger and Discovery were completed and commissioned. Several months later, the Atlantis and Endeavour entered service. Between mid-2155 and mid-2156, the Columbia, Challenger, Discovery, and Atlantis were destroyed or lost as a result of Romulan attacks. The Endeavour, equipped with countermeasures to the Romulan arrenhe'hwiua telecapture technology, battled with the Romulans at Altair VI. (ENT - The Romulan War novel: Beneath the Raptor's Wing)

In 2156, Enterprise underwent a 180-day refit. The ship was fitted with a secondary hull, essentially becoming a new ship class. The newly-refitted Enterprise saw more combat against the Romulan Star Empire during the Earth-Romulan War. (ST references: Ships of the Line 2011, Ships of the Line 2014, Ships of the Line)

NX-class production would later be restarted by 2159. Captain Picard remembered 15 or 16 ships of this class having been built. Some of them would be Intrepid (NX-07), Avenger (NX-09), and Currie (NX-16). (ST video game: Legacy; TNG novel: Indistinguishable from Magic)

Following the end of the Earth-Romulan War, Enterprise was decommissed in 2161. With Endeavour refitted to what Admiral Jonathan Archer had designated Columbia-class standard, no NX-class starship remained in service. (ENT - Rise of the Federation novel: A Choice of Futures)

Alternate events

In another version of history, the NX-class starships did not follow the naming lineage of NASA orbiters, and more ships survived the end of the Earth-Romulan War. These ships subsequently entered service as Federation starships. (ST reference: Federation: The First 150 Years)

25th century

In 2409, the Starfleet Corps of Engineers built the USS Utopia in the Utopia Planitia Fleet Yards as a replica of the NX-class. The ship entered service as a light escort during the Federation-Klingon War of 2405-2410. While the exterior was a careful replica of the original Earth starship class, its technology was state-of-the-art. (STO - Klingon War mission: "Welcome to Earth Spacedock")

Mirror universe

In the mirror universe, these were known as NX class battleships. There were at least 9 ships in service by January 2155. Most of these were refitted with advanced weapons from the USS Defiant in the same year. (ENT novel: Age of the Empress)

Specifications

NX-class internal cutaway

NX-class internal schematics.

When first launched, the NX-class was meagerly equipped with plasma cannons and spatial torpedoes. Instead of a tractor beam, it used special grappling cables. The first of the NX-class, the Enterprise had three phase cannons in storage, but it wasn't until midway through their first year that they were equipped. During the Xindi superweapon crisis, the Enterprise got retrofitted with twelve phase cannons and the newly developed photonic torpedoes. With these armanents, as well as improved hull plating, it was able to defeat three Klingon birds-of-prey. (ENT episode: "The Expanse")

After saving Earth from the Xindi superweapon, the NX-class received another upgrade including an upgraded navigational deflector, an improved computer interface, pulsed phase cannons, dorsal and ventral torpedo launchers, and polarised hull plating that had 12 percent greater performance than previous versions. (ENT episode: "Home")

In 2159, these vessels were equipped with phase banks and four torpedo launcher banks. (ST video game: Legacy)

Class variations

In the 25th century, the design of the NX-class light escort allowed its commanding officer to choose from different designs of livery, which could be modified further. These options were designated Type 1-5 and Veteran. (STO - The Klingon War mission: "Welcome to Earth Spacedock")

Furthermore, the installation of deflector shields from specific factions modified the hull appearance, including shields from the Reman Resistance, the Breen Confederacy and the Dominion. (STO missions: "Coliseum", "Cold Storage", "Boldly They Rode")

Known vessels

ship name registry ship commissioning disposition
Enterprise NX-01 2151,[1] refit 2156[2] decommissioned (2161)[3]
Columbia NX-02 2154,[4] refit 2410[5] destroyed (2156)[6]
active (2410)[5]
Challenger NX-03 2155[7] destroyed (2156)[7]
Excalibur NX-03 2155/56[6] destroyed (2156)[6]
Discovery NX-04 2155[7] destroyed (2155)[7]
Constellation NX-04 2156[6] active (2160)[6]
Atlantis NX-05 2156[7] destroyed (2156)[7]
active (2160)[6]
Slayton NX-05 by 2159[8] active (2261)[8]
USS Endeavour NX-06
NCC-06
2156,[7] refit 2161[9] active (2165)[10]
Defiant NX-06 or NX-07 2156[6] destroyed (2160)[6]
Lexington NX-06 or NX-07 2156[6] active (2160)[6]
Intrepid NX-07 circa 2160[11] destroyed (2384)[11]
Avenger NX-09 by 2159[12] active (2159)[12]
Currie NX-16 by 2159[12] active (2159)[12]
Utopia NCC-2151-01 2409[13] active (2410)[13]

Mirror universe vessels

ship name registry ship commissioning disposition
ISS Enterprise NX-01 2151[14] destroyed (2155)[15]
ISS Avenger NX-09 by 2155,[15] destroyed (2155)[15]
ISS Akagi by 2155[16] destroyed (2155)[16]
ISS Bismarck by 2155[16] destroyed (2155)[16]
ISS Broadsword by 2155[16] destroyed (2155)[16]
ISS Dauntless by 2155[16] active (2155)[16]
ISS Interceptor by 2155[16] active (2155)[16]
ISS Khan's Wrath by 2155[16] active (2155)[16]

Appendices

Connections

Starship classes of the Earth-Romulan War
United Earth, Starfleet ArrowAssistCavalryChristopherCosmosDaedalusDiscoveryDoppler (scout)EdisonGalliantGangesHopkinsHorizonIntrepid (22nd century)Liberty (picket cruiser)LongMarshallMercury (scout)MessierMinutemanNXPoseidonStriderVerneVanguard (transport)YorktownZeus Emblem of United Earth. Seal of the Earth Starfleet.

Emblem of Alpha Centauri. Andorian emblem. Emblem of Tellar. Emblem of Vulcan.

Coalition of Planets allies Alpha Centauri Concordium of Planets: DjartannaZoenamy Andorian Empire: KumariTaholsinTanathooefThofsin
United Planets of Tellar: DegbaxisG'buqoffPhinda Confederacy of Vulcan: D'KyrSuurokToj Lol
Romulan Star Empire, Imperial Fleet 22nd century bird-of-prey2150s bird-of-preylate-2150s bird-of-prey22nd century cargo shipbiogenic transportAlocalaBattlehawkHathosKlivai Vang'radaiMorlasam Cl'vangasRe'ravsamSkyhawkStelai'delethamS'ten TalasamSwarmSwiftwingTakaanT'LissVas'maklaramVas'rosvlaiVastagor VastarumVastari Sanalam Emblem of the Romulan Star Empire.
Starship classes and spacecraft types of Earth
ArrowAssistCavalryChristopherCosmosCZ-100DY-100DY-500DY-700DY-1100-classDaedalusDiscoveryDoppler (scout)EdisonGalliantGangesHopkinsHorizonIntrepid (22nd century)J (freighter)LongMarshallMercury (scout)MessierMinutemanNeptuneNXPoseidonStriderVanguard (transport)Verne (Earth)Y (freighter)YorktownZeus Seal of United Earth.
Starship classes of the Federation Starfleet
subclass groups

Akira (AlitaArmitageThunderchild) • Ambassador (AlaskaNarendraYamaguchi) • Apollo (Akula frigate / light cruiser) • Cardenas (Buran) • Chesapeake (Mongrel) • Cheyenne (DakotaStargazer) • Concorde (Geneva battlecruiserPresidio) • Constellation (Challenger deep space explorer) • Chimera heavy destroyer (Manticore) • Constitution (AchernarBonhomme RichardTikopaiEnterpriseExeterExcaliburVesperKirkCrossfield (Glenn32nd century refit) • Danube (Yellowstone) • Decatur (Dreadnought) • Defiant (GallantIncursionNachthexenSao PauloValiantVigilant escort) • Dervish (GryphonHermes escortMaelstromTempest) • Destiny (NimbusOracleTrident) • Engle (Earhart) • Excelsior (BismarckCurryKirovNew JerseyResolute) • Galaxy (Andromeda (25th century)CelestialEnvoyGalaxy XMonarch cruiserRossVenture cruiserYamato dreadnought) • Hermes scout (CygnusMonoceros) • Inquiry (Avenger battlecruiserArbiter) • Hoover (Edison) • Intrepid (BellerophonCochrane science vesselDiscovery (25th century)JanewayPathfinderTrailblazerYeager) • Kumari (CharalKhyzon) • Luna (CometPolarisSolTitan) • Magee (Shran (escort)) • Malachowski (Helios (tug)) • Miranda (AntonReliantSoyuz) • Merian (Merian (dreadnought)) • Nebula (Magellan) • New Orleans (Lafayette) • Nimitz (Europa) • Norway (Oslo) • Nova (AuroraQuasarRhode Island) • NX (ColumbiaPoseidon) • Oberth (ClarkeGagarin (23rd century)GrissomSagan) • Odyssey (VerityYorktown (cruiser)) • Olympic (HopeHorizon science vessel) • Prometheus (CerberusHephaestusHestiaPhoenix) • Ptolemy (DollondDopplerKeppler) • Remora (Charger) • Saladin (CochiseSiva) • Santa Fe (Newport) • Saber (GladiusRapierUshaan) • Sentinel (EmissaryNomad cruiserVanguard) • Shepard (Gagarin (25th century)) • Solanae (HeliosMontgomeryOmega) • Sovereign (ArchonImperialMajesticNoble cruiserRegent) • Steamrunner (AppalachiaZephyr) • Vesta (AventineRademaker) • Walker (GeorgiouShenzhou ) • Wells (EternalOuroborosVerne)

Emblem of the United Federation of Planets. Seal of the Federation Starfleet.
other named classes

AA classAakennAchillesAdvanceAegianAeolusAerieAkula destroyer / escortAmbassador HardinAndesAndorAndromeda (24th century)AngelouAntaresApacheAquariusArcherArchimedesArk RoyalArielAscendantAtroxAvenger (scout)BabcockBaderBakerBaton RougeBerenaBodeBolarusBonaventureBradburyBrentonCaliforniaCanadaCanopusCapellaCastorCentaurCentaurusCeresCestusChallengerChandleyChariotChimerChimera fast frigateChristopherClarke (25th century)Cle DanCochrane transportColumbiaCondor (raider)ContinentContortrixCopernicusCourageDaedalusDauntlessDeckerDefenderDeltaD'KyrDenevaDerfDrexlerDurrettEagleEclipseEdwardEinsteinEisenbergEl Doradofuture EnterpriseEpochEpsilonErewonEternalFederationFenlonFermiFijiFreedomFriendshipFrontierGagarin (24th century)GalenGallantGangesGenevaGenserGracefulGraysonGriffonGuardianGeminiHaleHermes fast cruiserHestonHoganHokule'aHorizon cruiserIcarusIlthirinIndomitableIntrepid (22nd century)IowaIstanbulIwo JimaClass JJupiterKarekhKeithKethkinKievK'KmarakKolm-AnKorolevLarsonLauroLaweyaLegacyLenthalLexingtonLibertyLokiLoknarLondonMadisonMakinMannMarklinMarsMarshallM'BengaMediterraneanMercedMercury (courier)Mercury (escort)Mercury (scout)MerianMerian (dreadnought)MessierMeteorMidwayMissionMissouriMobulaiMoKalMoscowMulciberNarcineNautilusNelsonNiagaraNoble laboratory vesselNomad escortNorthamptonOberonOdinOdysseusOkinawaOppenheimerOrionOsakaOverfieldPaladin battlecruiserPaladin destroyerParliamentPaladin (24th century)PerseusPioneerPhalanxPhantomPhiladelphiaPinnaclePiperPolluxPortsmithPralimPremonitionProtostarProximaPyotr VelikiyPyreneesRakotaRanger battlecruiserRanger explorerRanger scoutRenaissanceRickenbackerRigelRochesterRoyal SovereignSagittariusSamsonSaturnSawyerScorpioScryerScyllaSequoiaSevaijenShiKahrSierraSolarSpringfieldSulekSurakSydneyTangentTheophrastusThomas PaineThucydidesThufirTiberiusTiconderogaUniverseTheseusTripperTritiumTyphonTyphoonUkoraUlyssesUralUtahVenture scoutVigilant scoutVoyagerWallenbergWambunduWei-FaWellingtonWilkersonWizardYamatoYorkshireYorktownZodiacunnamed

general type

Defiant pathfinderRaging QueenSun TzuValley ForgeFederation assault shipFederation battleshipFederation cargo shipFederation colony shipFederation construction shipFederation cruiserdeep galaxy shipFederation dreadnoughtFederation freighterFederation frigateFederation galaxy shipFederation holoshipFederation heavy cruiser (2380s heavy cruiser) • Federation light cruiser (Constitution-variant light cruiserIntrepid-variant light cruiser) • Federation medium cruiser (Excelsior-variant medium cruiser) • Federation mining freighterFederation repair shipStarfleet tanker

References

Background

No explanation is given for these vessels' sometimes Federation Starfleet-style "USS" name prefix, despite existing years before the inception of the Federation.

The Legacy game software included numerous other names for ships of this class that were not prepared to be used in gameplay, and are hidden in the game's source code, including USS Adams, USS Aurbach, USS Boston, USS Commonwealth, USS Concord, USS Fenway, USS Liberty and USS Paul Revere. Possibly, these vessels were intended for some feature of the game that was not completed. For example, none of these ships are coded with registry number graphics like those the included ships possess.

External link

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