The Enterprise-class (or Enterprise-subclass, also known as the Constitution II-class) was a variant of the Constitution-class heavy cruisers which entered service in the late 23rd century. (FASA RPG modules: Federation Ship Recognition Manual, Star Trek: The Next Generation Officer's Manual; ST video games: Starfleet Command, Klingon Academy; ST reference: Spaceflight Chronology)

History and specifications[]

Specifications[]

The style hull seen on the Enterprise class was already in use on Soyuz-class ships like the the USS Collins, by the year 2265. (TOS - Spock: Reflections comic: "Issue 3")

The five-year mission of the Constitution-class ship USS Enterprise inspired some of the technological upgrades included in the refit, and the Enterprise had the honor to be the first Constitution class starship to receive those upgrades. (ST - DTI novel: Forgotten History)

The refit lasted a little over two years, from 2270 to 2273. (TOS movie: The Motion Picture, TOS novel: Ex Machina)

In the mirror universe, the Terran Empire also chose the Imperial Starfleet flagship, the ISS Enterprise, as the first ship to be refitted to the new configuration. (ST - Mirror Universe novel: The Sorrows of Empire)

By Reference stardate 2/2802 Starfleet was far enough in its experimentations with transwarp technology that it decided to refit 50 Enterprise-class heavy cruisers with transwarp engines when it felt the need for a support vessel capable of both exploration and combat, aside from the different propulsion metod the refitted vessels were also equipped with 2 additional aft torpedo launchers. The USS Valiant was the first vessel of this class to be refitted to these specification. (FASA RPG module: Star Trek: The Next Generation Officer's Manual)

By 2409, the Constitution-class refit was deemed a middling cruiser, and officers ranked lieutenant commander or higher were able to command one. Starfleet launched sister ship classes in the 2390s decade, namely the Excalibur- and Vesper-class cruisers. Later in 2409, a more advanced retrofit variant entered service, the Exeter-class. (STO - Klingon War mission: "Welcome to Earth Spacedock")

Phaser banks and photon torpedo launchers were standard equipment on these ships. The saucer, nacelles, pylons and hull were interchangeable with Excalibur-, Exeter- and Vesper-class starships. (STO - Klingon War mission: "Welcome to Earth Spacedock")

Livery[]

In the 25th century, the design of the Enterprise-class advanced escort allowed its commanding officer to choose from different designs of livery, which could be modified further at starbases. These options were designated Type 1-6, 8, 8b and Veteran. (STO - 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")

Type 1

Type 2

Type 3

Type 4

Type 5

Type 6

Type 8

Type 8b

Veteran

Known vessels[]

This article or subsection has an associated category.	Enterprise class starships

Enterprise-subclass (Constitution-class class XI/class XII cruiser/heavy cruiser starships)
Federation, Starfleet	Ships of various specifications	NCC-1335 • Achilles • Apollo • Boone • Christopher Pike • Explorer • Furious • Huntington • Icarus • Independence • Jefferson • Kelleghan • Lucas • Musashi • Rauer • Salazar • Somers • Tigress • Vengeance • heavy cruiser (CA): Constellation II • Goeben • Eximer • Oriskany • Republic • Reshadije • Ramilles • Constitution • Enterprise • Farragut II • rear-fire heavy cruiser (CAR): Yorktown • Exeter • Intrepid II • Valiant II • Potemkin • Monitor • Hornet • Merimac • Endeavour • Defiance • advanced heavy cruiser (CA+): Excelsior • Hood • Wasp • El Dorado • Ari • Saratoga • Tori • Krieger • Port Moresby • Pharsallus • Hastings • Arbela • heavy drone cruiser (CAD): Agincourt • Ballista • Barr • Reprisal • Vulture • command cruiser (CC): Essex • Excalibur II • Kongo • Lafayette • Lexington • heavy command cruiser (CB): Alesia • Alfeld • Austerlitz • Basra • Cannae • Coral Sea • Gaugamela • Gettysburg • Golan • Gravelotte • Inchon • Isandhlwana • Kadesh • Khe Son • Kursk • Panjsher • Rocroi • Rossbach • Suomussalmi • Tannenberg • Thermopolae • Poltava • Vincennes • fire support cruiser (CFS): Highwayman • Knight Errant • Paladin • Ranger • advanced fire support cruiser (CFS+): Berserker • Cavalier • Fencer • Samurai • tactical command cruiser (TCC): Enterprise-A • galactic survey cruiser: Achernar
	Refit to mk I specification	Enterprise • Bismark • Excalibur II • Yamato • Challenger • Valiant II • Essex • Bonhomme Richard • Potemkin • Constellation II • Intrepid • Centurion (fm. Farragut II) • Lexington • Yorktown • Wasp • Forrestal • Republic • Akagi • Rivoli	Built to mk I specification	Exeter • Defiant • Hood • Valley Forge • Oriskany • Republic • Hancock • Minsk • Yorktown
	Refit to mk II specification	Eagle • Santissima Trinidad • Marseille • Radetsky	Built to mk II specification	Zuiho • Graf Zeppelin • Soryu • Hiryu • King George V • Prince of Wales • Franklin • Victory II • Scharnhorst • Gneisenau • Kaga II •Kirishima • Freidland • Konigsberg • Clemenceau
	Refit to mk III specification	Kongo • Saratoga • El Dorado • Ticonderoga • Kitty Hawk	Built to mk III specification	Kearsarge • Bunker Hill • Chikuma • Emperador • Ukrania • Marcello • Fontana • Java
Terran Empire, Starfleet (mirror universe)		Constellation • Contemptible • Deceiver • Enterprise (refit) • Enterprise-A • Farragut • Intrepid • Nixon • Relentless

Appendices[]

Connections[]

Variants and sub-classes of the Constitution-class starship
	Constitution-class (mk I) • Bonhomme Richard-class (mk II) • Achernar-class (mk III) • Tikopai-class (mk IV) • Enterprise-classes (mk I-III refits) • Excalibur-class (24th century) • Vesper-class (24th century) • Exeter-class (25th century) • Kirk-class (31st century) • Constitution-class (Kelvin timeline) • Constitution-class (mirror universe)

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

References[]

• TOS movie, novelization & comic adaptation: The Motion Picture
• ST video game: Starfleet Command

External link[]

• Constitution II class article at Memory Alpha, the wiki for canon Star Trek.