小型作战舰艇排水量大多在数十吨一数百吨之间,用于执行对舰、对潜攻击,近海巡逻、警戒,护航、护渔,海上搜索、救援,以及运送物资、人员等任务。世界上大量拥有小型作战舰艇、并把它们作为水面舰艇部队主力的当属第三世界国家。发达国家把大、中型舰艇作为发展重点,但也配备了数量不等的小型舰艇,用于近海巡逻和警戒。据《简氏 Small battleships mostly displace between tens of tons and hundreds of tons to perform tasks such as on-ships, submarine attacks, offshore patrols, vigilance, escort, protection of fisheries, maritime search, rescue, and delivery of materials and personnel. The world has a large number of small-scale warships, and they are the main force of the surface warships belong to the Third World countries. Developed countries regard large and medium-sized warships as the focus of their development, but they are also equipped with a small number of warships ranging from coastal patrols and warnings. According to "Jane’s