 A secondary propulsion system is fitted separately from the main engines and used for economic mode or emergencies.The main mission is the surveillance of Moroccan EEZ and control of fisheries in the Atlantic Ocean, with secondary roles including detecting illegal immigration, smuggling and drug trafficking and supporting counter terrorism and search and rescue patrols along Moroccan coasts.The armament was recycled from decommissioned warships and from Royal Moroccan Army's inventory, later added after reception of the ships between 1995 and 1997 in Moroccan Navy Bases.