For other uses, see Crossfield.

The Crossfield class^[2] was a 32nd century Federation starship type, a tier 6 science spearhead refit^[2] of the 23rd century Crossfield-class^[9] science vessel in Starfleet service from the late 3180s^[9] decade. The first vessel of this configuration was the time-displaced USS Discovery (NCC-1031). (DSC episode: "Scavengers")

History and specifications[]

The 2250s-era Crossfield-class science vessel Discovery travelled from the year 2258^[5] to the future to prevent the rogue AI Control from seizing the sphere data and eradicating all organic life in the galaxy. Discovery arrived in 3189.^[4] Although the vessel was technologically outdated, Fleet Admiral Charles Vance reinstated Discovery as a Starfleet vessel when it proved the capacity of its spore drive during the rescue of the seed vault ship USS Tikhov-M. (DSC episode: "Die Trying")

While docked at Federation Headquarters, Discovery spent three weeks undergoing a refit. The 88^[4] surviving crewmembers received current Starfleet equipment, and programmable matter was integrated into the ship's systems. Captain Saru noted that even its warp nacelles were now detached, to improve maneuverability. The vessel also received the new registry number NCC-1031-A. (DSC episode: "Scavengers")

Like the 25th century Glenn-class refit of the 23rd century Crossfield-class, the modern refit lacked the spokes between the ring segments of the saucer section, and the deflector dish was replaced with its modern counterpart. (STO website: Legacy: Legendary Temporal Operative Science Vessel, DSC episode: "Scavengers")

The vessel was now armed with 32nd century phaser arrays and photon launchers typical of the era. (STO website: House Reborn: The Janeway Class Takes Flight)

Starfleet ships of this era were equipped with a 32nd century Federation cloaking device. (DSC episode: "Su'Kal", STO website: House Reborn: The Janeway Class Takes Flight)

The Discovery-A was captured by Minister Osyraa of the Emerald Chain, a cartel hostile to the surviving Federation. (DSC episode: "Su'Kal")

With its improved deflector shields, Discovery withstood concentrated fire of the Federation starships docked at Federation HQ during Osyraa's Trojan horse gambit. (DSC episode: "There Is A Tide...")

Starfleet recaptured the Discovery and the Emerald Chain splintered following Osyraa's death. With Saru on a sabbatical on Kaminar, Vance appointed Michael Burnham as commanding officer. Discovery's mission was to escort deliveries of dilithium to Federation and non-Federation worlds and facilities. (DSC episode: "That Hope Is You, Part 2")

Due to time travel, the Discovery-A or another version of itself visited Khitomer Alliance space in the year 2411^[10], and the Allied Fleet Service gained access to the Crossfield-class science spearhead refit. (STO website: House Reborn: Command the Crossfield of the Future!)

Known vessels[]

• USS Discovery-A^[9]

Appendices[]

Connections[]

Crossfield-class starships
Federation Starfleet (primary universe)	standard configuration	Andromeda • Crossfield • Glenn • Discovery • Stamets (imaginary)
	variant configurations	Glenn-subclass: Glenn • 32nd century refit: Discovery-A
Terran Empire Starfleet (mirror universe)	standard configuration	Crossfield • Discovery

Starship classes of the Federation Starfleet
subclass groups	Akira (Alita • Armitage • Thunderchild) • Ambassador (Alaska • Narendra • Yamaguchi) • Apollo (Akula frigate / light cruiser) • Cardenas (Buran) • Chesapeake (Mongrel) • Cheyenne (Dakota • Stargazer) • Concorde (Geneva battlecruiser • Presidio) • Constellation (Challenger deep space explorer) • Chimera heavy destroyer (Manticore) • Constitution (Achernar • Bonhomme Richard • Tikopai • Enterprise • Exeter • Excalibur • Vesper • Kirk • Crossfield (Glenn • 32nd century refit) • Danube (Yellowstone) • Decatur (Dreadnought) • Defiant (Gallant • Incursion • Nachthexen • Sao Paulo • Valiant • Vigilant escort) • Dervish (Gryphon • Hermes escort • Maelstrom • Tempest) • Destiny (Nimbus • Oracle • Trident) • Engle (Earhart) • Excelsior (Bismarck • Curry • Kirov • New Jersey • Resolute) • Galaxy (Andromeda (25th century) • Celestial • Envoy • Galaxy X • Monarch cruiser • Ross • Venture cruiser • Yamato dreadnought) • Hermes scout (Cygnus • Monoceros) • Inquiry (Avenger battlecruiser • Arbiter) • Hoover (Edison) • Intrepid (Bellerophon • Cochrane science vessel • Discovery (25th century) • Janeway • Pathfinder • Trailblazer • Yeager) • Kumari (Charal • Khyzon) • Luna (Comet • Polaris • Sol • Titan) • Magee (Shran (escort)) • Malachowski (Helios (tug)) • Miranda (Anton • Reliant • Soyuz) • Merian (Merian (dreadnought)) • Nebula (Magellan) • New Orleans (Lafayette) • Nimitz (Europa) • Norway (Oslo) • Nova (Aurora • Quasar • Rhode Island) • NX (Columbia • Poseidon) • Oberth (Clarke • Gagarin (23rd century) • Grissom • Sagan) • Odyssey (Verity • Yorktown (cruiser)) • Olympic (Hope • Horizon science vessel) • Prometheus (Cerberus • Hephaestus • Hestia • Phoenix) • Ptolemy (Dollond • Doppler • Keppler) • Remora (Charger) • Saladin (Cochise • Siva) • Santa Fe (Newport) • Saber (Gladius • Rapier • Ushaan) • Sentinel (Emissary • Nomad cruiser • Vanguard) • Shepard (Gagarin (25th century)) • Solanae (Helios • Montgomery • Omega) • Sovereign (Archon • Imperial • Majestic • Noble cruiser • Regent) • Steamrunner (Appalachia • Zephyr) • Vesta (Aventine • Rademaker) • Walker (Georgiou • Shenzhou ) • Wells (Eternal • Ouroboros • Verne)
other named classes	AA class • Aakenn • Achilles • Advance • Aegian • Aeolus • Aerie • Akula destroyer / escort • Ambassador Hardin • Andes • Andor • Andromeda (24th century) • Angelou • Antares • Apache • Aquarius • Archer • Archimedes • Ark Royal • Ariel • Ascendant • Atrox • Avenger (scout) • Babcock • Bader • Baker • Baton Rouge • Berena • Bode • Bolarus • Bonaventure • Bradbury • Brenton • California • Canada • Canopus • Capella • Castor • Centaur • Centaurus • Ceres • Cestus • Challenger • Chandley • Chariot • Chimer • Chimera fast frigate • Christopher • Clarke (25th century) • Cle Dan • Cochrane transport • Columbia • Condor (raider) • Continent • Contortrix • Copernicus • Courage • Daedalus • Dauntless • Decker • Defender • Delta • D'Kyr • Deneva • Derf • Drexler • Durrett • Eagle • Eclipse • Edward • Einstein • Eisenberg • El Dorado • future Enterprise • Epoch • Epsilon • Erewon • Eternal • Federation • Fenlon • Fermi • Fiji • Freedom • Friendship • Frontier • Gagarin (24th century) • Galen • Gallant • Ganges • Geneva • Genser • Graceful • Grayson • Griffon • Guardian • Gemini • Hale • Hermes fast cruiser • Heston • Hogan • Hokule'a • Horizon cruiser • Icarus • Ilthirin • Indomitable • Intrepid (22nd century) • Iowa • Istanbul • Iwo Jima • Class J • Jupiter • Karekh • Keith • Kethkin • Kiev • K'Kmarak • Kolm-An • Korolev • Larson • Lauro • Laweya • Legacy • Lenthal • Lexington • Liberty • Loki • Loknar • London • Madison • Makin • Mann • Marklin • Mars • Marshall • M'Benga • Mediterranean • Merced • Mercury (courier) • Mercury (escort) • Mercury (scout) • Merian • Merian (dreadnought) • Messier • Meteor • Midway • Mission • Missouri • Mobulai • MoKal • Moscow • Mulciber• Narcine • Nautilus • Nelson • Niagara • Noble laboratory vessel • Nomad escort • Northampton • Oberon • Odin • Odysseus • Okinawa • Oppenheimer • Orion • Osaka • Overfield • Paladin battlecruiser • Paladin destroyer • Parliament • Paladin (24th century) • Perseus • Pioneer • Phalanx • Phantom • Philadelphia • Pinnacle • Piper • Pollux • Portsmith • Pralim • Premonition • Protostar • Proxima • Pyotr Velikiy • Pyrenees • Rakota • Ranger battlecruiser • Ranger explorer • Ranger scout • Renaissance • Rickenbacker • Rigel • Rochester • Royal Sovereign • Sagittarius • Samson • Saturn • Sawyer • Scorpio • Scryer • Scylla • Sequoia • Sevaijen • ShiKahr • Sierra • Solar • Springfield • Sulek • Surak • Sydney • Tangent • Theophrastus • Thomas Paine • Thucydides • Thufir • Tiberius • Ticonderoga • Universe •Theseus • Tripper • Tritium • Typhon • Typhoon • Ukora • Ulysses • Ural • Utah • Venture scout • Vigilant scout • Voyager • Wallenberg • Wambundu • Wei-Fa • Wellington • Wilkerson • Wizard • Yamato • Yorkshire • Yorktown • Zodiac • unnamed
general type	Defiant pathfinder • Raging Queen • Sun Tzu • Valley Forge • Federation assault ship • Federation battleship • Federation cargo ship • Federation colony ship • Federation construction ship • Federation cruiser • deep galaxy ship • Federation dreadnought • Federation freighter • Federation frigate • Federation galaxy ship • Federation holoship • Federation heavy cruiser (2380s heavy cruiser) • Federation light cruiser (Constitution-variant light cruiser • Intrepid-variant light cruiser) • Federation medium cruiser (Excelsior-variant medium cruiser) • Federation mining freighter • Federation repair ship • Starfleet tanker

Appearances and references[]

Appearances[]

• DSC episode: "Scavengers" (Discovery refitted)
• DSC episode: "Unification III"
• DSC episode: "The Sanctuary"
• DSC episode: "There Is A Tide..."
• DSC episode: "That Hope Is You, Part 2"
• STU Issue 02: "USS Zheng He, "English Boost" promo"
• STO website: House Reborn: Explore Far from Home! (25th century version)
• STO website: House Reborn: Command the Crossfield of the Future! (class name confirmed)
• Shipyards reference: Starfleet Ships 2294 - The Future

References[]

External links[]

• Crossfield class (32nd century) article at Memory Alpha, the wiki for canon Star Trek.
• Crossfield Science Spearheard Refit article at Star Trek Online Wiki.