A patrol boat is a relatively small naval vessel generally designed for coastal defence, border security, or law enforcement. There are many designs for patrol boats, and they generally range in size. They may be operated by a nation's navy, coast guard, police, or customs, and may be intended for marine, estuarine, or river environments.
The River class is a class of offshore patrol vessels built primarily for the Royal Navy of the United Kingdom. A total of nine were built for the Royal Navy (RN), four Batch 1 and five Batch 2. One Batch 1 (HMS Clyde), which was the Falklands guard ship, was decommissioned and transferred at the end of its lease to the Royal Bahrain Naval Force.
Patrol Boat, Riverine, or PBR, is the United States Navy designation for a small rigid-hulled patrol boat used in the Vietnam War from March 1966 until 1975. They were deployed in a force that grew to 250 boats, the most common craft in the River Patrol Force, Task Force 116, and were used to stop and search river traffic in areas such as the Mekong Delta, the Rung Sat Special Zone, the Saigon River and in I Corps, in the area assigned to Task Force Clearwater, in an attempt to disrupt weapons shipments. In this role they frequently became involved in firefights with enemy soldiers on boats and on the shore, were used to insert and extract Navy SEAL teams, and were employed by the United States Army's 458th Transportation Company, known as the 458th Sea Tigers. The PBR was replaced by the Special Operations Craft – Riverine (SOC-R)
Patrol Craft Fast (PCF), also known as Swift Boats, were all-aluminum, 50-foot (15 m) long, shallow-draft vessels operated by the United States Navy, initially to patrol the coastal areas and later for work in the interior waterways as part of the brown-water navy to interdict Vietcong movement of arms and munitions, transport South Vietnamese forces and insert SEAL teams for counterinsurgency (COIN) operations during the Vietnam War.
The Hauk-class patrol boats were a series of Norwegian fast attack craft. Hauk means hawk in Norwegian. They were ordered in the 1970s and the first boat, Hauk, was commissioned on 17 August 1977. Designed as a development of the Storm and Snøgg classes, by Lieutenant commander Harald Henriksen, the 14 Hauk-class vessels made up the Coastal Combat Flotilla, responsible for protecting the rugged coastline of Norway. The ships were modernized frequently and in their later form were known as "Super-Hauks." The Royal Norwegian Navy deployed four of these warships for anti-terror patrol in the Strait of Gibraltar.
USS Loggerhead (SS-374/AGSS-374), a Balao-class submarine, was a ship of the United States Navy named for the loggerhead, Caretta caretta, a very large, carnivorous sea turtle common in the warmer parts of the Atlantic, Pacific, and Indian Oceans.
The Royal Thai Navy is the naval warfare force of Thailand. Established in 1906, it was modernised by the Admiral Prince Abhakara Kiartiwongse (1880–1923) who is known as the father of the Royal Navy. It has a structure that includes the naval fleet, Royal Thai Marine Corps, and Air and Coastal Defence Command. The RTN headquarters is at Sattahip Naval Base.
The Grumman G-44 Widgeon is a small, five-person, twin-engined, amphibious aircraft. It was designated J4F by the United States Navy and Coast Guard and OA-14 by the United States Army Air Corps and United States Army Air Forces.
The Armidale class is a class of patrol boats built for the Royal Australian Navy (RAN). Planning for a class of vessels to replace the fifteen Fremantle-class patrol boats began in 1993 as a joint project with the Royal Malaysian Navy, but was cancelled when Malaysia pulled out of the process. The project was reopened in 1999 under the designation SEA 1444, with the RAN as the sole participant. Of the seven proposals tendered, the Austal/Defence Maritime Services (DMS) proposal for twelve vessels based on an enlarged Bay-class patrol boat was selected. Two additional boats were ordered in 2005 to provide a dedicated patrol force for the North West Shelf Venture.
Lamotte-Picquet was a French Duguay-Trouin-class light cruiser, launched in 1924, and named in honour of the 18th century admiral count Toussaint-Guillaume Picquet de la Motte.
The Myanmar Navy is the naval warfare branch of the armed forces of Myanmar. With 24,000 personnel on duty, the navy operates more than 150 vessels. Prior to 1988, the navy was small, and its role in counter-insurgency operations was smaller than those of the army and the air force. The navy has since been expanded to take on a more active role in defense of Myanmar's territorial waters.
HMS Stonehenge was an S-class submarine of the third batch built for the Royal Navy during World War II. Completed in 1943, she made her initial patrol off Norway and was then transferred to the Far East, where she conducted two war patrols, during which she sank two Japanese ships. On her second patrol, Stonehenge disappeared with all hands and was declared overdue on 20 March 1944. The most probable cause of her sinking is that she hit a mine, but her wreck has never been found.
HMS Stratagem was a third-batch S-class submarine built for the Royal Navy during World War II. Completed in 1943, she made her first war patrol off Norway before she was sent to the Far East, where she conducted three war patrols. On her second, she shelled installations on a Japanese-held island. Her only success came on her last patrol, when she torpedoed and sank a Japanese oil tanker. Soon after, she was spotted by aircraft and depth charged by a destroyer. She was forced to surface, and was scuttled to prevent her capture. Ten crew members escaped the sinking submarine and were taken prisoner, of whom only three survived the war.
The Point-class cutter was a class of 82-foot patrol vessels designed to replace the United States Coast Guard's aging 83-foot wooden hull patrol boat being used at the time. The design utilized a mild steel hull and an aluminum superstructure. The Coast Guard Yard discontinued building the 95-foot Cape-class cutter to have the capacity to produce the 82-foot Point-class patrol boat in 1960. They served as patrol vessels used in law enforcement and search and rescue along the coasts of the United States and the Caribbean. They also served in Vietnam during the Vietnam War. They were replaced by the 87-foot Marine Protector-class coastal patrol boats beginning in the late 1990s.
The Keka-class patrol boats are vessels designed by ASC Pty. Ltd. originally for the Royal Thai Navy. A second variant series was designed for the Hong Kong Marine Police.
The PGM-39-class gunboats, designated Patrol Gunboat, Motor by the United States Navy were a class of fifty nine gunboats constructed in various shipyards from 1959–1970. The design was based on the United States Coast Guard Cape-class cutter design with a five-foot (1.5 m) hull extension. It was specifically designed for the U.S. Military Assistance Program and was used by the navies of The Philippines, Indonesia, South Vietnam, Thailand, Burma, Ethiopia, and Ecuador.
The Denel Land Systems GI-2 is an autocannon manufactured by Denel Land Systems (DLS) and used by the South African Army, Navy, Air Force, Royal Thai Navy and Indonesian Navy.
German submarine U-991 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II.
HMS Torrent was a Royal Navy R-class destroyer constructed and then operational in the First World War. She was sunk, with most of her crew in 1917. On 23 December 1917 Surprise, HMS Torrent, and Tornado sank after entering an Imperial German minefield.
Royal Thai Navy 