Offshore patrol vessels do not need to imitate frigates to provide useful hulls for presence and maritime-security work. The discussion notes that sloops also changed character when configured for anti-submarine escort or minesweeping duties. A patrol vessel could likewise be converted for a more specialized requirement without making that fit its everyday identity. The useful test is whether the ship performs its assigned mission, not whether every hull carries a full combatant armament.
Notable Point · 1:53:02-1:53:30
Offshore patrol vessels earn their place through presence
The comparison with wartime sloops separates a patrol ship's normal maritime-security role from specialized combat fits it might receive when required.