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The United States Navy has approximately 430 ships in both active service and the reserve fleet, with approximately 70 more in either the planning stages or under construction, according to the Naval Vessel Register and published reports. This list includes ships that are owned and leased by the U.S. Navy; ships that are formally commissioned, by way of ceremony, and non-commissioned. Ships denoted with the prefix "USS" are commissioned ships. Prior to commissioning, ships are designated with the prefix "PCU", for "Pre-Commissioning Unit". US Navy support ships are often non-commissioned ships organized and operated by Military Sealift Command. Among these support ships, those denoted "USNS" are owned by the US Navy; those denoted by "MV" or "SS" are chartered. Current ships include commissioned warships that are in active service, as well as ships that are part of Military Sealift Command, the support component and the Ready Reserve Force, that while non-commissioned, are still part of the effective force of the U.S. Navy. Future ships listed are those that are in the planning stages, or are currently under construction, from having its keel laid to fitting out and final sea trials. There exist a number of former US Navy ships which are museum ships (not listed here), some of which may be US government-owned. One of these, the , a three-masted tall ship, is one of the original six frigates of the United States Navy. It is the oldest naval vessel afloat, and still retains its commission (and hence is listed here), as a special commemoration for that ship alone. ==Current ships== (''by type'') ;Commissioned (USS); *1 Afloat forward staging base *10 Aircraft carriers *9 Amphibious assault ships *2 Amphibious command ships *9 Amphibious transport docks *54 Attack submarines *14 Ballistic missile submarines *1 Classic frigate ( *''see'' ) *22 Cruisers *62 Destroyers *12 Dock landing ships *4 Guided missile submarines *5 Littoral combat ships *11 Mine countermeasures ships *13 Patrol boats *2 Submarine tenders *1 Technical research ship ( *''see'' ) ;Non-Commissioned (USNS); *1 Cable repair ship *14 Dry cargo ships *3 Fast combat support ships *4 Fleet ocean tugs *1 Fuel Tanker (''1 of 2'') *2 High speed transports *2 Hospital ships *2 Instrumentation ships *5 Joint high speed vessels *12 Maritime prepositioning ships *2 Mobile landing platforms *5 Ocean surveillance ships *15 Replenishment oilers *4 Salvage ships *6 Survey ships *19 Vehicle cargo ships (''19 of 56'') ;Support (MV, RV - ''or no prefix''); *2 Barracks craft *4 Barracks ships *3 Container ships *2 Dry docks *1 Fast sea frame *6 Harbor tugs *7 Large harbor tugs *2 Oceanographic research ships *1 Self Defense Test Ship *2 Torpedo trials craft *2 Unclassified miscellaneous ;Ready Reserve Force ships (MV, SS, GTS); *2 Aviation logistics support ships *5 Cargo ships *6 Crane ships *1 Fuel tanker (''1 of 2'') *37 Vehicle cargo ships (''37 of 56'') ;Totals; Commissioned: 232 *, Non-Commissioned: 97, Support: 32, Ready Reserve Force: 51. Grand Total: 412 (+18 in Reserve Fleet, 35 under construction and 77 planned) * 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「List of current ships of the United States Navy」の詳細全文を読む スポンサード リンク
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