The Primus class battle cruiser was a mainstay of the Centauri Republic fleet. The Primus was built by House Tavari Armaments at the Hevaria Orbital Shipyards at Tolonius VII. A very powerful warship compared to its contemporaries, the only real weakness of the Primus is its lack of fighter bay facilities. During the last days of the Narn-Centauri War, several Primus class battle cruisers were outfitted with highly illegal mass drivers and were used in the planetary bombardment of Narn.