Glenn class

For other uses, see Glenn.

The Glenn class was a 25th century Federation starship class, a legendary temporal operative science vessel and variant subclass of the 23rd century Crossfield-class science vessel, in Starfleet service from the 2410s decade. (STO website: Legacy: Legendary Temporal Operative Science Vessel, STO - Legacy mission: "Welcome to Earth Spacedock")

The class was conceived when the Advanced Starship Design Bureau (ASDB) recovered the 150-year abandoned Yard 39 and its Crossfield-class technology. (STO website: Age of Discovery: The Stats of the Europa Class!)

Service history and specifications

The Crossfield-class USS Glenn was active in the 2250s decade. It was one of two science vessels equipped with the experimental spore drive, co-developed by astromycologists Justin Straal and Paul Stamets. Six months after the Battle of the Binary Stars on 11 May 2256, the Glenn was lost after a Klingon attack. (DSC episode: "Context Is for Kings", STO - Age of Discovery mission: "Secrets")

150 years later, in 2410, Ensign Elyos and Lieutenant Whetu of the Utopia Planitia Fleet Yards discussed the recovery of Yard 39 and several hulks of Starfleet ships hastily abandoned there when the star TL-9139 erupted and flooded its system with baryon radiation in 2259. With the radiation suddenly diminishing, Starfleet was able to recover Yard 39 and its assets. (STO - Age of Discovery short story: "Utopia Planetia: The Mystery of Yard 39")

Around the same time, Starfleet learned of the 2256-era

ISS Crossfield

, prototype of the Terran Empire's Crossfield-class destroyer. (STO - Mirror of Discovery short story: "From the Desk of Starfleet Intelligence")

Legendary Crossfields — The *Crossfield*-class family in 2411.

The Glenn, and the relaunched and refitted Crossfield-class, shared the same capabilities and could exchange hull components between them, which mandated they keep a similar size. (STO - Klingon War mission: "Welcome to Earth Spacedock") The Crossfield-class was 750 meters long. (DSC Issue 02: "USS Discovery") Both classes were equipped with an experimental spore drive, a weaponized helical torsion console, and could execute the Lorca maneuver. As temporal operative science vessels, the ships combined timeship systems with regular science vessel abilities.

The prototype USS Glenn was launched in 2411 alongside a refitted USS Discovery replica and the

ISS Crossfield

. (STO website: Legacy: Legendary Temporal Operative Science Vessel, STO - Legacy mission: "Welcome to Earth Spacedock")

Unlike the 23rd century Crossfield-class, the Glenn lacked spokes between the inner and outer ring of its saucer section. The neck connecting primary hull with secondary hull was widened. (STO - Legacy mission: "Welcome to Earth Spacedock")

Discovery tentacled — The 32nd century *Crossfield*-class refit.

In the year 3189, these features were carried over when the time-displaced Crossfield-class USS Discovery received a structural refit at Federation Headquarters to catch up with the technical standards of the 32nd century. (DSC episode: "Scavengers")

Livery

In the 25th century, the design of the Glenn-class legendary temporal operative science vessel allowed its commanding officer to choose from different designs of hull materials, which could be modified further at shipyards. (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")

Known vessels

USS Glenn (NCC-98030)

Appendices

Connections

Crossfield-class starships
Federation Starfleet (primary universe)	standard configuration	Andromeda • Crossfield • Glenn • Discovery • Stamets (imaginary)
Federation Starfleet (primary universe)	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

References

External links

Glenn Legendary Temporal Operative Science Vessel article at Star Trek Online Wiki.
Legendary Temporal Operative Science Vessel dev blog at the ARC website