A patrol boat is a relatively small naval vessel generally designed for coastal defense duties. There have been many designs for patrol boats. They may be operated by a nation's navy, coast guard, or police force, and may be intended for marine (blue water) and/or estuarine or river ("brown water") environments. They are commonly found engaged in various border protection roles, including anti-smuggling, anti-piracy, fisheries patrols, and immigration law enforcement. They are also often called upon to participate in rescue operations.
They may be broadly classified as inshore patrol vessels (IPVs) and offshore patrol vessels (OPVs). They are warships typically smaller in size than a corvette and can include fast attack craft, torpedo boats and missile boats, although some are as large as a frigate. The offshore patrol vessels are usually the smallest ship in a navy's fleet that are large and seaworthy enough to patrol off-shore in the open ocean. In larger militaries, such as in the United States military, offshore patrol vessels usually serve in the coast guard, but many smaller nations navies operate these type of ships.
During both World Wars in order to rapidly build up numbers, all sides created auxiliary patrol boats by arming motorboats and sea going fishing trawlers with machine guns and obsolescent naval weapons. Some modern patrol vessels are still based on fishing and leisure boats. Seagoing patrol boats are typically around 30m (100 ft) in length and usually carry a single medium caliber artillery gun as main armament, and a variety of lighter secondary armament such as machine guns or a close-in weapon system. Depending on role, vessels in this class may also have more sophisticated sensors and fire control systems that would enable them to carry torpedoes, anti-ship and surface-to-air missiles.
Most modern designs are powered by gas turbine arrangements such as CODAG, and speeds are generally in the 25–30 knot range. They are primarily used for patrol in a country's Exclusive Economic Zone. Common tasks are fisheries inspection, anti-smuggling (usually anti-narcotics) duties, illegal immigration patrols, anti-piracy patrols and search and rescue (law enforcement-type of work). The largest OPVs might also have a flight deck and helicopter embarked. In times of crisis or war, these vessels are expected to support the larger vessels in the navy.
Their small size and relatively low cost make them one of the most common type of warship in the world. Almost all navies operate at least a few offshore patrol vessels, especially those with only "green water" capabilities. They are useful in smaller seas such as the North Sea as well as in open oceans. Similar vessels for exclusively military duties include torpedo boats and missile boats. The United States Navy operated the Pegasus class of armed hydrofoils for years, in a patrol boat role. The River Patrol Boat (PBR, sometimes called "Riverine" and "Pibber") is a U.S. design of small patrol boat type designed to patrol waters of large rivers.
Other articles related to "patrol boat, boat, boats":
... The Point class cutter was a 70 ton, 82-foot (25 m) patrol vessel ... It had a crew of 10 men, and a top speed of 16.8 knots (31.1 km/h 19.3 mph) ...
... P31 Dzūkas Norway Storm-class patrol boat Fast patrol boat 2007 ... Former P965 HNoMS Kjekk P33 Skalvis Norway Storm-class patrol boat Fast patrol boat 1967 2001 ...
3 Pacific class patrol boat (Australia, displacement 162 t, length 31,5 m, width 8,1 m, draught 1,8 m, power 2 x 1,050 kW, maximal speed 20 knots (37 km/h), crew 17 man ... These boat replace discharged Redwing-class minesweepers FNS Kula, Kikau and Kiro, gain 1975 - 1976 from the United States Navy ... RFNS 201 Kula (May 1994) RFNS 202 Kikau (May 1995) RFNS 203 Kiro (October 1995) 2 patrol boat (USA, displacement 97 t, crew 11 man, equipment machine guns 1 x 12,7 mm) RFNS 101 ...
... Live footage showing some of the riverine boats is used, but tall metal electric power lines are visible in the background of the speeding PBRs ... the PBR, referred to as a "pibber", in the Electronic Arts game Nuclear Strike although the boats were never referred to as a "pibber" in the Navy ...
... In May 2011, Indonesia has received 19 Patrol Boat from US. ...
Famous quotes containing the word boat:
“Every time I get happy
the Nana-hex comes through.
Birds turn into plumbers tools,
a sonnet turns into a dirty joke,
a wind turns into a tracheotomy,
a boat turns into a corpse....”
—Anne Sexton (19281974)