海上巡逻飞机一般为岸基固定翼飞机,主要用于保护本国海岸线和所辖海域的安全,是海、空军飞机中的重要组成部分。海上巡逻飞机可以担负搜索、警戒、攻击、救援、运输、布雷和目标指示等任务,按飞机的作战半径,即巡逻范围大致有远程、中程和近程之分。远程海上巡逻机一般用于远洋巡逻,其作战半径最大可达数千千米,最大续航时间10多小时,有的甚至超过20小时,它们的典型代表为美国的P-3C“猎户座”(Orion),英国的“猎迷”(Nimrod),俄罗斯的 A-40“信天翁”(Albatross)和法国的“大西洋 Sea patrol aircraft are generally shore-based fixed-wing aircraft, mainly for the protection of their coastline and the safety of the area under its jurisdiction, sea and air force aircraft is an important part. Patrol aircraft at sea can take the search, alert, attack, rescue, transport, mine and target instructions and other tasks, according to the aircraft’s operational radius, that is, patrol range roughly remote, medium and short range. The long-range maritime patrol aircraft are generally used for ocean patrols. Their combat radius can reach up to several thousand kilometers, the maximum life time is over 10 hours, and some even exceed 20 hours. Their typical representative is the U.S. P-3C Orion ), Britain’s “Nimrod”, Russia’s A-40 “Albatross” and France’s "Atlantic