Osowiec Class Heavy Frigate

Induction
The Osowiec Class Heavy Frigate was the first UNSC ship type to make use of the then newly introduced Magnetic Accelerator Cannons. First built in the early 2400s as UNSC naval doctrine was reformed around the use of new MAC guns in light of rising rebellion, the Osowiec dropped the light armaments of the early UNSC navy and began toting the signature big stick of the unsc navy; the MAC. At 406 meters in length the ship was considered small and under-powered by the onset of the late 2400s.