unnamed Federation starships of the .
Utopia Planitia Shipyards
2371, at least one of these starships was being constructed at the Utopia Planitia Fleet Yards in orbit of Mars. ( : " VOY ")
This appearance is the earliest chronologically dated, in-universe appearance in the series, showing that the class was in service at least two years prior to its 2373 appearance in . Star Trek: First Contact
Battle of Sector 001
2373, several of these starships fought against the Borg in the Battle of Sector 001.
One ship engaged the
Borg cube near Earth, but was destroyed by the time the USS led the attack that ultimately destroyed the cube. ( Enterprise-E )
Star Trek: First Contact
Another ship joined in the assault on the Borg cube, led by the
Enterprise-E, by firing phasers at the coordinates defined by Captain Jean-Luc Picard. This ship was consumed in the explosion that destroyed the cube. ( )
Star Trek: First Contact
Steamrunner-class ships in the Second Fleet
2373, several of these starships belonged to the Second Fleet.
Dominion attacked Deep Space 9, during the second Battle of Deep Space 9, several of these vessels crossed the Cardassian border and destroyed the Dominion shipyards on Torros III. These ships later joined with the USS and Defiant IKS , following the evacuation of DS9, for a counterattack against the Dominion forces. ( Rotarran : " DS9 ")
Call to Arms
starship was one of at least two that participated in the Operation Return battle of the Dominion War in 2374. ( : " DS9 ")
Favor the Bold
This ship with two others on patrol
...and then there were two.
starship, along with an Akira-class starship and a Saber-class starship, were on patrol near Deep Space 9 in mid- 2374 through early- 2375. ( : " DS9 ", " Statistical Probabilities ", " The Magnificent Ferengi ")
The trio later became a duo, with the departure of their
Akira-class partner, mid-year. ( : " DS9 ")
Field of Fire
First Battle of Chin'toka
2374, this at least one of these starships was part of the Federation assault fleet that attacked the Chin'toka system. ( : " DS9 ")
Tears of the Prophets
Second Battle of Chin'toka
starship participated in the second Battle of Chin'toka where it was destroyed by the Breen. ( : " DS9 ")
The Changing Face of Evil
Battle of Cardassia
In late 2375, at least one of these
starships was part of the Federation Alliance fleet that was engaged by the Dominion defending Cardassia Prime. ( : " DS9 ")
What You Leave Behind
This scene was reused footage from " " with the planets in the background removed and replaced with empty space. Tears of the Prophets
Earth defense fleet
Among the fleet
2378, this starship, stationed near the Sol system, was dispatched by Admiral Owen Paris to a defensive point near an opening Borg transwarp aperture near Earth.
This ship, along with a task force of several other Federation starships, opened fire on the emerging
Borg sphere, and assisted in its destruction. Following the emergence of USS from the debris, the starships assisted in escorting Voyager Voyager back to Earth. ( : " VOY ")