Assault Support Patrol Boat
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Assault Support Patrol Boat
The Assault Support Patrol Boat (ASPB) (also known as the Alpha Boat), was a heavily armed and armored riverine patrol boat developed by the United States Navy for use in the Vietnam War from late 1967. History The ASPB was approximately long, its hull was constructed of steel, from the gunwale up it was steel, its superstructure was aluminum which provided protection against 57mm recoilless rifle rounds and armor-piercing bullets up to .50 caliber in size. The first 36 boats were ordered from Gunderson Brothers Engineering Corporation of Portland, Oregon on 25 October 1966. The initial boats were armed with two Mk 48 turrets with either 20 mm cannon or .50 cal machine guns, two single M60 machine guns or Mk 21 machine guns and one Mk 2 Mod 0/1 .50 cal machine gun/81mm mortar in a well in the aft of the boat, but this well was eliminated in later models. The boat had a complement of five crewmen and could carry up to eight soldiers. The boat was powered by two 430  ...
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Republic Of Vietnam Navy
The Republic of Vietnam Navy (RVNN; ; ''HQVNCH'') was the naval branch of the South Vietnamese military, the official armed forces of the former Republic of Vietnam (or South Vietnam) from 1955 to 1975. The early fleet consisted of boats from France; after 1955, and the transfer of the armed forces to Vietnamese control, the fleet was supplied from the United States. With American assistance, in 1972 the VNN became the largest Southeast Asian navy and, by some estimates, the fourth largest navy in the world, just behind the Soviet Union, the United States and the People's Republic of China, with 42,000 personnel, 672 amphibious ships and craft, 20 mine warfare vessels, 450 patrol craft, 56 service craft, and 242 junks. Other sources state that VNN was the ninth largest navy in the world. The Republic of Vietnam Navy was responsible for the protection of the country's national waters, islands, and interests of its maritime economy, as well as for the co-ordination of maritime p ...
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South Vietnam
South Vietnam, officially the Republic of Vietnam ( vi, Việt Nam Cộng hòa), was a state in Southeast Asia that existed from 1955 to 1975, the period when the southern portion of Vietnam was a member of the Western Bloc during part of the Cold War after the 1954 division of Vietnam. It first received international recognition in 1949 as the State of Vietnam within the French Union, with its capital at Saigon (renamed to Ho Chi Minh City in 1976), before becoming a republic in 1955. South Vietnam was bordered by North Vietnam to the north, Laos to the northwest, Cambodia to the southwest, and Thailand across the Gulf of Thailand to the southwest. Its sovereignty was recognized by the United States and 87 other nations, though it failed to gain admission into the United Nations as a result of a Soviet veto in 1957. It was succeeded by the Republic of South Vietnam in 1975. The end of the Second World War saw anti-Japanese Việt Minh guerrilla forces, led by communist fi ...
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Military Boats
A military, also known collectively as armed forces, is a heavily armed, highly organized force primarily intended for warfare. It is typically authorized and maintained by a sovereign state, with its members identifiable by their distinct military uniform. It may consist of one or more military branches such as an army, navy, air force, space force, marines, or coast guard. The main task of the military is usually defined as defence of the state and its interests against external armed threats. In broad usage, the terms ''armed forces'' and ''military'' are often treated as synonymous, although in technical usage a distinction is sometimes made in which a country's armed forces may include both its military and other paramilitary forces. There are various forms of irregular military forces, not belonging to a recognized state; though they share many attributes with regular military forces, they are less often referred to as simply ''military''. A nation's military may ...
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Vietnam War Ships
Vietnam or Viet Nam ( vi, Việt Nam, ), officially the Socialist Republic of Vietnam,., group="n" is a country in Southeast Asia, at the eastern edge of mainland Southeast Asia, with an area of and population of 96 million, making it the world's sixteenth-most populous country. Vietnam borders China to the north, and Laos and Cambodia to the west. It shares maritime borders with Thailand through the Gulf of Thailand, and the Philippines, Indonesia, and Malaysia through the South China Sea. Its capital is Hanoi and its largest city is Ho Chi Minh City (commonly known as Saigon). Vietnam was inhabited by the Paleolithic age, with states established in the first millennium BC on the Red River Delta in modern-day northern Vietnam. The Han dynasty annexed Northern and Central Vietnam under Chinese rule from 111 BC, until the first dynasty emerged in 939. Successive monarchical dynasties absorbed Chinese influences through Confucianism and Buddhism, and expanded ...
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Riverine Warfare
The term brown-water navy or riverine navy refers in its broadest sense to any naval force capable of military operations in littoral zone waters. The term originated in the United States Navy during the American Civil War, when it referred to Union forces patrolling the muddy Mississippi River, and has since been used to describe the small gunboats and patrol boats commonly used in rivers, along with the larger "mother ships" that supported them. These mother ships include converted World War II-era Landing Crafts and Tank Landing Ships, among other vessels. Brown-water navies are contrasted with seaworthy blue-water navies, which can independently conduct operations in open ocean. Green-water navies, which can operate in brackish estuaries and littoral coasts, are the bridge between brown-water navies and blue-water navies. History Napoleonic Wars After losing its blue-water fleet in the Battle of Copenhagen in 1807, the kingdom of Denmark-Norway quickly built a brown- ...
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Pump-jet
A pump-jet, hydrojet, or water jet is a marine system that produces a jet of water for propulsion. The mechanical arrangement may be a ducted propeller (axial-flow pump), a centrifugal pump, or a mixed flow pump which is a combination of both centrifugal and axial designs. The design also incorporates an intake to provide water to the pump and a nozzle to direct the flow of water out of the pump.http://www.hamiltonmarine.co.nz/includes/files_cms/file/JetTorque%2008.pdf Design A pump-jet works by having an intake (usually at the bottom of the hull) that allows water to pass underneath the vessel into the engines. Water enters the pump through this inlet. The pump can be of a centrifugal design for high speeds, or an axial flow pump for low to medium speeds. The water pressure inside the inlet is increased by the pump and forced backwards through a nozzle. With the use of a ''reversing bucket'', reverse thrust can also be achieved for faring backwards, quickly and withou ...
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Pratt & Whitney PT-6
The Pratt & Whitney Canada PT6 is a turboprop aircraft engine produced by Pratt & Whitney Canada. Its design was started in 1958, it first ran in February 1960, first flew on 30 May 1961, entered service in 1964 and has been continuously updated since. It consists of two basic sections: a gas generator with accessory gearbox and a free power turbine with reduction gearbox, and is often seemingly mounted backwards in an aircraft in so far as the intake is at the rear and the exhaust at the front. Many variants of the PT6 have been produced, not only as turboprops but also as turboshaft engines for helicopters, land vehicles, hovercraft, and boats; as auxiliary power units; and for industrial uses. By November 2015, 51,000 had been produced, had logged 400 million flight hours from 1963 to 2016. It is known for its reliability with an in-flight shutdown rate of 1 per 651,126 hours in 2016. The PT6A covers the power range between while the PT6B/C are turboshaft variants for he ...
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Sikorsky Aircraft
Sikorsky Aircraft is an American aircraft manufacturer based in Stratford, Connecticut. It was established by aviation pioneer Igor Sikorsky in 1923 and was among the first companies to manufacture helicopters for civilian and military use. Previously owned by United Technologies Corporation, in November 2015 Sikorsky was sold to Lockheed Martin. History On 5 March 1923, the Sikorsky Aero Engineering Corporation was founded near Roosevelt Field, New York, by Igor Sikorsky, an immigrant to the United States who was born in Kyiv. In 1925, the company name was changed to Sikorsky Manufacturing Company. After the success of the Sikorsky S-38">S-38, the company was reorganized as the Sikorsky Aviation Corporation with capital of $5,000,000, allowing the purchase of land and the building of a modern aircraft factory in Stratford. In 1929, the company moved to Stratford, Connecticut, and it became a part of United Aircraft and Transport Corporation (later United Technologies Corporatio ...
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Assault Support Patrol Boat (ASPB), Mark II
An assault is the act of committing physical harm or unwanted physical contact upon a person or, in some specific legal definitions, a threat or attempt to commit such an action. It is both a crime and a tort and, therefore, may result in criminal prosecution, civil liability, or both. Generally, the common law definition is the same in criminal and tort law. Traditionally, common law legal systems have separate definitions for assault and battery. When this distinction is observed, battery refers to the actual bodily contact, whereas assault refers to a credible threat or attempt to cause battery. Some jurisdictions combined the two offences into a single crime called "assault and battery", which then became widely referred to as "assault". The result is that in many of these jurisdictions, assault has taken on a definition that is more in line with the traditional definition of battery. The legal systems of civil law and Scots law have never distinguished assault from batter ...
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NH 95977
NH or Nh may refer to Businesses and organizations * All Nippon Airways (IATA code NH), formerly Nippon Helicopter, Japan's largest airline * National Agricultural Cooperative Federation, a South Korean cooperative federation also known by its Korean initials NH (''Nonghyup'') * New York, New Haven and Hartford Railroad * NH (media company), formerly ', a Dutch broadcasting company * NH Hotel Group, formerly ', a Spanish-based hotel chain * NH Media ("''Nam Hee''"), a South Korean entertainment agency * Nordsjælland Håndbold, a Danish handball team Places * New Hampshire, US (postal abbreviation NH) * New Haven, a city in Connecticut, United States * Noroton Heights, Connecticut, a town in Connecticut, United States * North Holland, a province in the Netherlands * Nowa Huta, a district of Kraków, Poland In science and technology * Nh (digraph), an orthographic concept * National Hose Thread, a threaded connection standard used on hose couplings * Nickel hydride, a type of rec ...
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Đồng Tâm Base Camp
Đồng Tâm Base Camp (also known as Đồng Tâm Army Airfield) is a former U.S. Army, U.S. Navy, and Army of the Republic of Vietnam (ARVN) base west of Mỹ Tho in the Mekong Delta, southern Vietnam. History 1966–9 Đồng Tâm Base Camp was established on the northern bank of the Mekong River 7 km west of Mỹ Tho upon COMUSMACV General William Westmoreland's decision to gain full control over the upper Mekong Delta region. Westmoreland personally took part in site selection. Westmoreland chose the name Đồng Tâm meaning "united hearts and minds" or "singleness of mind, in thoughts, and actions" in Vietnamese. The total construction price for the Army and Navy ran close to $8,000,000. Due to lack of available dry land, the base was created by dredging from the river. Dredging work to create the base commenced in August 1966 and involved the reclamation of 600 acres of swampland. The Vietcong attempted to sabotage the base construction sinking the dredgeship '' ...
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Viet Cong
, , war = the Vietnam War , image = FNL Flag.svg , caption = The flag of the Viet Cong, adopted in 1960, is a variation on the flag of North Vietnam. Sometimes the lower stripe was green. , active = 1954–1959 ''(as southern Viet Minh cadres)'' , ideology = , position = Far-left , leaders = Liberation Army: Central Office: Liberation Front:Burchett, Wilfred (1963):Liberation Front: Formation of the NLF, ''The Furtive War'', International Publishers, New York. Governance: , merged_into = Vietnamese Fatherland Front , clans = , headquarters = , area = Indochina, with a focus on South Vietnam , predecessor = Viet Minh , successor = Vietnam Fatherland Front , allies = , opponents = , battles = See full list The Viet Cong, ; contraction of (Vietnamese communist) was an armed communist organization in South Vietnam, ...
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