This is a list of active Spanish Navy ships, complete and correct as of February 2013. As of 2013, there are approximately 54 commissioned ships in the Navy (excluding minor auxiliary vessels), including one amphibious assault ship (also used as an aircraft carrier), two amphibious transport docks, 11 frigates, three submarines, six mine countermeasure vessels, 23 patrol vessels and a number of auxiliary ships. The total displacement of the Spanish Navy is approximately 220,000 tonnes.