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USS Excalibur (alternate reality)

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For other uses, see Excalibur.

The USS Excalibur[2] was a Constitution-class flagship operated by the Federation Starfleet in the 2250s[1] of the alternate reality created by the temporal displacement of the Narada.

History and specificsEdit

The Excalibur, then under the command of Captain Prax, was one of the ships assigned to defend Earth from the Varkolak fleet in 2256. During the crisis, Cadet Hikaru Sulu was assigned to the vessel as relief helm officer. Sulu convinced Prax to listen to Spock's Priority One order to stand down from engaging the Varkolak fleet, despite the Excalibur being targeted by twelve different Varkolak vessels. (ST - SA novel: The Assassination Game)

The Excalibur was part of the Starfleet force that battled starships of the Romulan Star Empire in the 2250s. (TOS video game: D-A-C)


commanding officer
  • Captain Prax (2256)
communications officer
  • Lieutenant Chang (2256)
tactical officer



Ships named Excalibur
United Earth, Starfleet Excalibur (NX-03, NX-class) Seal of United Earth United Earth Starfleet Emblem
Federation, Starfleet USS Excalibur (2240s starships)USS Excalibur (NCC-1664, Constitution-class)USS Excalibur II (Constitution-class)USS Excalibur (Miranda-class)USS Excalibur (NCC-2004, Excelsior-class)USS Excalibur (NCC-26517, Ambassador-class)USS Excalibur (NCC-26517-A, Galaxy-class)USS Excalibur (NCC-94547, Excalibur-class)see also: Excalibur-class Ufp-emblem Starfleet Command logo
Federation Starfleet
(Kelvin timeline)
USS Excalibur (Arbiter-class)USS Excalibur (Constitution-class)USS Excalibur (Defender-class)USS Excalibur (Guardian-class)USS Excalibur (Interceptor-class) UFP 2260 alt2250s alt cmd badge
Imperial Starfleet
(mirror universe)
ISS Excalibur (NCC-1664, Constitution-class)ISS Excalibur (NCC-94547, Excalibur-class) TerranEmpire
Galactic Commonwealth, Starfleet
(mirror universe)
Excalibur (free starship)
Khanate Earthfleet
(alternate timeline)
Excalibur (Earthfleet starship) Khan
Warning: The following content contains spoilers for Star Trek Beyond.
Constitution-class heavy cruiser flagships (Kelvin timeline)
Federation, Starfleet USS ArlingtonUSS AuroraUSS CairoUSS ConstellationUSS CutlassUSS EnterpriseUSS Enterprise-AUSS ExcaliburUSS ExultantUSS NebulaUSS PaladinUSS PotemkinUSS RangerUSS SentinelUSS VanguardUSS Yorktown UFP 2260 alt 2250s alt cmd badge
Terran Empire, Starfleet
(mirror universe)
ISS Enterprise TerranEmpire


  1. 1.0 1.1 D-A-C gives no date, but as it features the USS Enterprise it is presumably set after the events of Star Trek, which featured the launch of the Enterprise in 2258.
  2. In D-A-C starship names are selected and allocated at random. The game features eleven Federation starship names which are assigned randomly to all classes of ships in the game. The Arlington is therefore also known as the name of vessels of the four other Starfleet classes in the game.

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