The River Class vessels are larger and more effective than the Island Class vessels they replaced. This is because it is expected that they will serve twice as many days at sea.
The Hunt Class MCMVs are pivotal in the wider military utility of the FPS. In addition to fulfilling a large share of the routine patrolling, explosives experts on board are involved in the safe disposal of Second World War mines trawled up by fishermen.
The P2000 boats are mainly used by the University Royal Naval Units (URNUs). HM Ships Pursuer and Dasher form the Faslane Patrol Boat Squadron (FPBS).”