USS Mjolnir (NCV-85050)

The USS Mjolnir (NCV-85080) was a Federation starship, a temporal escort  in Starfleet service in the 26th century. The Mjolnir participated in the pivotal Battle of Procyon V. 

History
In the 26th century, the Mjolnir was part of an allied fleet, with representatives from the 22nd century to the 31st, dispatched by Temporal Agent Pavel Chekov to defend the USS Enterprise (NCC-1701-J) during the assault on the Tuterians' command sphere. The Mjolnir subsequently engaged Temporal Liberation Front forces from various factions, including Krenim, Vorgons, Terran Empire, Na'kuhl, and Sphere Builders.