USS Excalibur (NCC-26517-A)

The USS Excalibur (NCC-26517-A) is a Galaxy class Battleship in service with Starfleet and the Federation during the late 24th century and was the second ship to bear the name.

The Excalibur-A was launched from the Utopia Planitia Fleet Yards in 2375, and was commissioned in 2376. She was intended to be placed under the command of Captain Elizbeth Shelby, but when the returning Captain Mackenzie Calhoun on the day of the vessel's dedication, command was turned over to him.

Vanguard Command
By 2385, the Excalibur-A was placed under the command of Captain Katherine Mueller and was assigned to serve as one of the Battleships of the 67-starship strong Task Force Invincible commanded by Rear Admiral (upper grade) Jean-Luc Picard.