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 - SAnovel: The Assassination Game)
↑ 1.01.1D-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.
↑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.