Star Trek the Official Starships Collection - Steamrunner Class.
Steamrunner-class ships were involved in crucial battles with the Borg and the Dominion in the late 24th century. The Steamrunner class was a type of Starfleet ship that was in operation in the late 24th century. In a radical departure from conventional Starfleet ship design, the main deflector dish was located on the front of a compact secondary hull that hung down below, and behind, the saucer section.
A full description of the vessel, its firepower and abilities can be found in the magazine, along with concept artist Alex Jaeger’s original design sketches.