- For other uses, see Excelsior.
Variants and subclasses of the 2280s-era Excelsior-class in 2411.
Throughout the history of the universe, there have been multiple timelines, alternate realities and parallel universes that have all contained versions of the starship type commonly known as Excelsior-class, as well as various refits and facsimiles.
By the year 2411, Federation Starfleet and its Khitomer Alliance partners operated several variants, subclasses and refits of the Excelsior-class, dating from the 2250s to the 2410s. (STO website: House Reborn: The Legendary Excelsior Miracle Worker Heavy Cruiser)
History[]
In the primary universe, Starfleet worked on the USS Repulse (NCC-1900), prototype of the Repulse-class miracle worker heavy cruiser in the 2250s and 2260s decades. (STO website: House Reborn: The Legendary Excelsior Miracle Worker Heavy Cruiser)
With the launch of the USS Excelsior (NCC-2000) in the 2280s, the Excelsior-class entered service. (TOS movie, novelization & comic adaptation: The Search for Spock)
In the 2380s, the USS Archimedes appeared as a large Excelsior-class ship outfitted with Sovereign-class warp nacelles. (LD episode: "First First Contact")
The Excelsior II-class intel heavy cruiser was active in the 2400s and 2410s decades. (STO website: Ascension: The Excelsior II!)
Alternate timelines[]
In an alternate reality where United Earth did not join the Coalition of Planets in 2155, 23rd century Earth Starfleet were working on the Excelsior-class "Great Experiment" at the Utopia Planitia Fleet Yards on Mars in the year 2264. (TOS - Myriad Universes - Infinity's Prism novel: A Less Perfect Union)
In an alternate timeline where Vulcans had remained a violent and emotional species, the Interstellar Union's Interstellar Guard deployed IG battlecruisers in the 2290s. Their Excelsior-class was an Andorian design based on the 22nd century Kumari-class. (ST - Myriad Universes - Shattered Light novel: The Tears of Eridanus)
Excelsior-class variants[]
