USS Excalibur
From Star Trek: Theurgy Wiki
The USS Excalibur (NCC-26517) was a 24th century Federation Ambassador-class starship operated by Starfleet.
The Excalibur was under the command of Captain Al Smutko in the early 2360's until 2367, when Captain Smutko retired to his homeworld of Daa’V.
Petty Officer Third class Nolak Kalmil transferred to the Excalibur in 2362 and remained part of her crew until 2369.
Chief Petty Officer T'Less of joined the crew of the Excalibur in 2364 and served aboard her until 2368 when she left to enroll in Starfleet Academy to become an officer.
In early January of 2368, when the Excalibur put in for repairs at Starbase 234, the ship's crew was reassigned. Later that year, the ship was selected for a mission into Klingon territory under the command of Commander William T. Riker. After the mission was over, Riker relinquished command. (TNG: "Redemption II") During that mission, Petty Officer William Robert "Billy Bob" O'Connell was temporarily assigned to the Excalibur where he met Nolak Kalmil, who had made petty officer first class by then.
In 2369 the USS Excalibur encountered the Borg Cube 45208 and many of the officers and crew were lost or assimilated. Only the timely but desperate actions of Petty Officer Kalmil and the remaining crew of Excalibur prevented the ship from being completely assimilated into the collective. (VOY: "Survival Instinct") (Source: Memory Alpha)
After the USS Excalibur returned home to be refitted and repaired from the Borg encounter, Nolak Kalmil took a two year leave of absence to recover on his home planet.
