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Maritime patrol

A maritime patrol aircraft is a fixed-wing military aircraft designed to operate for long durations over water in maritime patrol roles—in particular anti-submarine, anti-ship, and search and rescue. Some patrol aircraft were designed for this purpose, like the Kawasaki P-1. Many others are modified designs of pre-existing aircraft, such as the Boeing P-8 Poseidon, which is based on the Boeing 737-800 airliner. While the term maritime patrol aircraft generally refers to fixed wing aircraft, other aircraft types, such as blimps and helicopters, have also been used in the same roles.