The USS Raven (NAR-32450) was a small Federation-registered ship, Raven type, that rogue civilian scientists Magnus and Erin Hansen used in their voyages.
Overview
The plaque of the USS Raven.
During the 2350s, the Hansens took the Raven on a field mission to locate and study a rumored race of cybernetic beings from beyond the Romulan Neutral Zone known to the peoples of the Beta Quadrant as the Borg. In the course of their mission, they stopped at the Drexler outpost in the Omega sector, as recorded in the logs of Deep Space 4. After leaving the station, they deviated from their flight plan, disobeyed a direct order to return and crossed into the Neutral Zone as part of their study into the Borg. After tracking stray readings and sensor echoes for eight months, the Hansens were able to locate a Borg cube. The ship was pulled into a transwarp conduit whilst trailing the cube and was transported to the Delta Quadrant. The Raven continued its exploration of the Borg for three years until 2356, when an ion storm damaged the vessel's multi-adaptive shielding. The shields went offline for 13.2 seconds, and the Borg detected and pursued the Hansens. The Hansens and their daughter, Annika, were assimilated and the ship, also partially assimilated, crashed onto a moon in B'omar space. (VOY: "The Gift", "Dark Frontier")
The Raven assimilated
The vessel's Borg components continued to emit a resonance frequency despite its damage. This resonance frequency drew Seven of Nine, who had once been Annika Hansen, to the vessel in 2374. Shortly afterward, the vessel was destroyed by B'omar forces. (VOY: "The Raven")
Background
In "The Raven", the ship was described as being a Federation civilian vessel, with the prefix "SS." In "Dark Frontier", however, it was referred to as the "USS Raven," despite the Hansens clearly being civilians. Presumably, this is a mistake on the part of the writers of "Dark Frontier."
Other References
The USS Raven exists in the Activision FPS game "Star Trek Voyager: Elite Force" developed by Raven Software as a multiplayer map patterned after the floorplan of the Raven Software Developer's Studio in Wisconsin. The floorplan of Raven Software has appeared in several of the games they have developed including Soldier of Fortune and Soldier of Fortune II/Double Helix.