In the civil war of 192-193, the fleet supported Septimius Severus, and, together with the classes Misenensis, it participated in the campaign against Pescennius Niger, transporting his legions to the East.
•
Some of the sailors were based in Rome itself, initially housed in the barracks of the Praetorian Guard, but later given their own barracks, the Castra Ravennatium across the Tiber.