USS Excelsior
NCC-2000, previously NX-2000
Pathfinder and transwarp drive testbed.[43] In The Search for Spock, the ship dubbed ‘the great experiment’ and was days away from its first test run. It was unexpectedly called into service to stop Admiral Kirk and his crew from stealing the soon to be decommissioned Enterprise. Attempting to use the transwarp drive to bring the ship back to spacedock, the Excelsior was sabotaged by Montgomery Scott and was left inoperable. Following the embarrassing failure, the Excelsior underwent repairs in spacedock before its recommission into active duty. Fails in attempt to rescue Captain James T. Kirk and Dr. Leonard McCoy from Qo’noS.[75] Helps defeat General Chang over Khitomer.[51] Ship aboard which Tuvok serves as science officer.[75] Commanded by Captain Styles in Star Trek III: The Search for Spock and Captain Hikaru Sulu in Star Trek VI: The Undiscovered Country.