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A naval ship is a military ship (or sometimes boat, depending on classification) used by a navy. Naval ships are differentiated from civilian ships by construction and purpose. Generally, naval ships are damage resilient and armed with weapon systems, though armament on troop transports is light or non-existent. Naval ships designed primarily for naval warfare are termed warships, as opposed to support (auxiliary ships) or shipyard operations. ==Naval ship classification== Naval ship classification is a field that has changed over time, and is not an area of wide international agreement, so this article currently uses the system as currently used by the United States Navy. *Aircraft carrierships that serve as mobile seaborne airfields, designed primarily for the purpose of conducting combat operations by Carrier-based aircraft which engage in attacks against airborne, surface, sub-surface and shore targets. *Surface combatantlarge, heavily armed surface ships which are designed primarily to engage enemy forces on the high seas, including various types of battleship, battlecruiser, cruiser, destroyer, and frigate. *Submarineself-propelled submersible types regardless of whether they are employed as combatant, auxiliary, or research and development vehicles which have at least a residual combat capability. *Patrol combatantcombatants whose mission may extend beyond coastal duties and whose characteristics include adequate endurance and sea keeping providing a capability for operations exceeding 48 hours on the high seas without support. *Amphibious warfareships having organic capability for amphibious assault and which have characteristics enabling long duration operations on the high seas. *Combat logisticsships that have the capability to provide underway replenishment to fleet units. *Mine warfareships whose primary function is mine warfare on the high seas. *Coastal defenseships whose primary function is coastal patrol and interdiction. *Sealiftships that have the capability to provide direct material support to other deployed units operating far from home base. *Supportships, such as oilers, designed to operate in the open ocean in a variety of sea states to provide general support to either combatant forces or shore based establishments. (Includes smaller auxiliaries which, by the nature of their duties, leave inshore waters). *Service type craftnavy-subordinated craft (including non-self-propelled) designed to provide general support to either combatant forces or shore-based establishments. 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「Naval ship」の詳細全文を読む スポンサード リンク
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