Unnamed Prometheus class starships

This is a list of unnamed Federation and Terran starships of the.

By year
In 2374 and 2375, deposed Emperor $𝜇$ of the Terran Empire intended to duplicate the captured USS Enterprise (NCC-1701-E) and its first copy, the, in the Goldin Discontinuity in the mirror universe, in order to defeat the Klingon-Cardassian Alliance with a fleet of Sovereign-class starships. 

By 2380, the Starfleet had access to no more than fifteen Sovereign-class starships, including the USS Enterprise (NCC-1701-E). Zelik Leybenzon noted that fact when countless Sovereigns from other quantum realities appeared through a quantum fissure at Gorsach IX. 

Chasing the Excalibur
In a permutation of the mirror universe where the Alliance held the galaxy in the chokehold, three Prometheus-class ships were part of the fleet chasing the insurgent Excalibur. These Prometheus were adorned with the Imperial logo on the prow, and yellow markings on top of the saucer section. Their deflector dish was yellow, too. The fleet failed to prevent the Excalibur's escape into the primary universe through an interdimensional rift. 

Battle of Procyon V
In the 26th century, a ship of this class participated in the Battle of Procyon V, against the Sphere Builders and their Temporal Liberation Front allies.