Pulau Rau-class Minesweeper
The ''Pulau Rau''-class minesweepers were a class of ten motor minesweepers of the Indonesian Navy, in service during the Cold War. Design and construction In 1954, the Indonesian Navy ordered 10 ''Pulau Rau''-class minesweepers from Abeking & Rasmussen in West Germany West Germany was the common English name for the Federal Republic of Germany (FRG) from its formation on 23 May 1949 until German reunification, its reunification with East Germany on 3 October 1990. It is sometimes known as the Bonn Republi .... The ''Pulau Rau''-class were modified R boats (i.e. motor minesweepers of a German World War II design) armed with one Bofors 40mm L/60 Mk 3 gun, two Oerlikon 20mm/70 Mk 10 guns and also mechanical minesweeping gear. They were built between 1954 and 1957 and remained in service for the next thirty years. Ships in class ''Pulau Rau'' (501)''Pulau Roma'' (502)''Pulau Rass'' (503)''Pulau Roti'' (504)''Pulau Rupat'' (505)''Pulau Rangsang'' (506)''Pulau Rindja'' (50 ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Indonesian Navy
The Indonesian Navy (, TNI-AL) is the Navy, naval branch of the Indonesian National Armed Forces. It was founded on 10 September 1945 and has a role to patrol Indonesia's lengthy coastline, to enforce and patrol the territorial waters and Exclusive economic zone of Indonesia, Exclusive Economic Zone (EEZ) of Indonesia, to protect Indonesia's maritime strategic interests, to protect the islands surrounding Indonesia, and to defend against seaborne threats. The Navy is headed by the Chief of Staff of the Indonesian Navy, Chief of Staff of the Navy ( – KSAL or KASAL). The Indonesian Navy consists of three major fleets known as "wikt:armada#Noun, Armada", which are (1st Fleet Command) located in Tanjung Uban, (2nd Fleet Command) located in Surabaya, (3rd Fleet Command) located in Sorong (city), Sorong, and one (Military Sealift Command). The Navy also heads the Indonesian Marine Corps, Marine Corps. Mission According to Article 9 of Law No.34/2004 on the Indonesian National Ar ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Abeking & Rasmussen
Abeking & Rasmussen (A&R) is a shipyard situated in Lemwerder, near Bremen in the Germany, German state of Lower Saxony. The shipyard is on the left bank of the Weser, River Weser, and currently comprises five production halls with associated workshops and offices, an inner harbour and a syncrolift. The business was founded in 1907 by Georg Abeking and Henry Rasmussen. Abeking, mechanical engineer at the Nordseewerke yard in the harbour of the north German city of Emden, was a friend of Rasmussen and became his partner. With the support of the Frederick Augustus II, Grand Duke of Oldenburg, Grand Duke of Oldenburg, a sailing enthusiast, Abeking and Rasmussen founded their yacht- and shipyard at Lemwerder on the south side of the Weser, opposite the small town of Bremen-Vegesack, Vegesack. Rasmussen, who idolised American yacht designer Nathanael Herreshoff, was known as a talented yacht skipper and proved to be equally adept as a yacht designer himself. Rasmussen built his first sa ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Motor Minesweeper
A motor minesweeper is a small minesweeper, powered by an internal combustion engine, very often of wooden construction, designed to locate and destroy mines in coastal waters and harbors. Many navies have used such ships. Motor minesweepers include: * Auxiliary motor minesweepers (YMS), small wood-hulled minesweepers commissioned by the United States Navy for service during World War II, originally designated yard minesweepers (YMS) ** s, a class of auxiliary minesweepers established for the United States Navy in 1941, some of which were transferred to the United Kingdom or Canada during World War II ** or ''Bluebird''-class minesweepers, auxiliary motor minesweepers built for the United States Navy throughout the 1950s until 1978. The first ship of the class was to be USS ''Adjutant'', but the first ship commissioned was ''Bluebird'', where the US ships got their class name. * s, wooden motor minesweepers built in the US for the (UK) Royal Navy from 1941 to 1943 * s, inshore min ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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2 Cm FlaK 30/38/Flakvierling
The Flak 30 (''Flugzeugabwehrkanone 30'') and improved Flak 38 were 20 mm anti-aircraft guns used by various German forces throughout World War II. It was not only the primary German light anti-aircraft gun but by far the most numerously produced German artillery piece throughout the war. It was produced in a variety of models, notably the Flakvierling 38 which combined four Flak 38 autocannons onto a single carriage. Development 2 cm C/30, 2 cm Flak 30 The Germans fielded the unrelated early 2 cm Flak 28 just after World War I, but the Treaty of Versailles outlawed these weapons and they were sold to Switzerland. The original Flak 30 design was developed from the Solothurn ST-5 as a project for the Kriegsmarine, which produced the 2 cm C/30. The gun fired the "Long Solothurn", a 20 × 138 mm belted cartridge that had been developed for the ST-5 and was one of the more powerful 20 mm rounds. The C/30, featuring a barrel length of 65 ca ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Naval Mine
A naval mine is a self-contained explosive weapon placed in water to damage or destroy surface ships or submarines. Similar to anti-personnel mine, anti-personnel and other land mines, and unlike purpose launched naval depth charges, they are deposited and left to wait until, depending on their fuzing, they are triggered by the approach of or contact with any vessel. Naval mines can be used offensively, to hamper enemy shipping movements or lock vessels into a harbour; or defensively, to create "safe" zones protecting friendly sea lanes, harbours, and naval assets. Mines allow the minelaying force commander to concentrate warships or defensive assets in mine-free areas giving the adversary three choices: undertake a resource-intensive and time-consuming minesweeping effort, accept the casualties of challenging the minefield, or use the unmined waters where the greatest concentration of enemy firepower will be encountered. Although international law requires signatory nations ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Depth Charge
A depth charge is an anti-submarine warfare (ASW) weapon designed to destroy submarine A submarine (often shortened to sub) is a watercraft capable of independent operation underwater. (It differs from a submersible, which has more limited underwater capability.) The term "submarine" is also sometimes used historically or infor ...s by detonating in the water near the target and subjecting it to a destructive shock factor, hydraulic shock. Most depth charges use high explosives with a fuze set to detonate the charge, typically at a specific depth from the surface. Depth charges can be dropped by ships (typically fast, agile surface combatants such as destroyers or frigates), patrol aircraft and helicopters. Depth charges were developed during World War I, and were one of the first viable methods of attacking a submarine underwater. They were widely used in World War I and World War II, and remained part of the anti-submarine arsenals of many navies during the Cold War, duri ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Motor Minesweeper
A motor minesweeper is a small minesweeper, powered by an internal combustion engine, very often of wooden construction, designed to locate and destroy mines in coastal waters and harbors. Many navies have used such ships. Motor minesweepers include: * Auxiliary motor minesweepers (YMS), small wood-hulled minesweepers commissioned by the United States Navy for service during World War II, originally designated yard minesweepers (YMS) ** s, a class of auxiliary minesweepers established for the United States Navy in 1941, some of which were transferred to the United Kingdom or Canada during World War II ** or ''Bluebird''-class minesweepers, auxiliary motor minesweepers built for the United States Navy throughout the 1950s until 1978. The first ship of the class was to be USS ''Adjutant'', but the first ship commissioned was ''Bluebird'', where the US ships got their class name. * s, wooden motor minesweepers built in the US for the (UK) Royal Navy from 1941 to 1943 * s, inshore min ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Cold War
The Cold War was a period of global Geopolitics, geopolitical rivalry between the United States (US) and the Soviet Union (USSR) and their respective allies, the capitalist Western Bloc and communist Eastern Bloc, which lasted from 1947 until the dissolution of the Soviet Union in 1991. The term ''Cold war (term), cold war'' is used because there was no direct fighting between the two superpowers, though each supported opposing sides in regional conflicts known as proxy wars. In addition to the struggle for ideological and economic influence and an arms race in both conventional and Nuclear arms race, nuclear weapons, the Cold War was expressed through technological rivalries such as the Space Race, espionage, propaganda campaigns, Economic sanctions, embargoes, and sports diplomacy. After the end of World War II in 1945, during which the US and USSR had been allies, the USSR installed satellite state, satellite governments in its occupied territories in Eastern Europe and N ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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West Germany
West Germany was the common English name for the Federal Republic of Germany (FRG) from its formation on 23 May 1949 until German reunification, its reunification with East Germany on 3 October 1990. It is sometimes known as the Bonn Republic after its capital city of Bonn, or as the Second German Republic. During the Cold War, the western portion of Germany and the associated territory of West Berlin were parts of the Western Bloc. West Germany was formed as a political entity during the Allied occupation of Germany after World War II, established from 12 States of Germany, states formed in the three Allied zones of occupation held by the United States, the United Kingdom, and France. At the onset of the Cold War, Europe was divided between the Western and Eastern Bloc, Eastern blocs. Germany was divided into the two countries. Initially, West Germany claimed an exclusive mandate for all of Germany, representing itself as the sole democratically reorganised continuation of ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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R Boats
The R boats (''Räumboote'' in German, literally "clearing boats", meaning minesweepers) were a group of small naval vessels built as minesweepers for the ''Kriegsmarine'' (German navy) before and during the Second World War. They were used for several purposes during the war, and were also used post-war by the German Mine Sweeping Administration for clearing naval mines. Twenty-four boats were transferred back to the post-war German Navy (the ''Bundesmarine'') in 1956 and remained in service until the late 1960s. In 1954, the Indonesian Navy ordered 10 ships of a modified R-boat design (the ''Pulau Rau''-class) from Abeking & Rasmussen in West Germany. Design and construction The R boats were nine classes of motor minesweepers built for the Nazi German Navy (the ''Kriegsmarine'') from 1929 to the end of World War II. They had standard displacements ranging from 60 to 160 tons and were from 37 to 41 meters in length. Originally armed with one to two 20mm guns they were up-gun ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Bofors 40 Mm Gun
Bofors 40 mm gun is a name or designation given to models of 40 mm calibre automatic anti-aircraft guns designed and developed by the Swedish company Bofors: * Bofors 40 mm Automatic Gun L/43 - developed in the 1930s with market entry in 1934, widely used in World War II and into the 1990s *Bofors 40 mm Automatic Gun L/60 The Bofors 40 mm Automatic Gun L/60 (often referred to simply as the "Bofors 40 mm gun", the "Bofors gun" and the like, see #Name, name) is an Anti-aircraft warfare, anti-aircraft autocannon, designed in the 1930s by the Swedish arms ... - developed in the 1930s with market entry in 1936, widely used in World War II and into the 1990s, still in minor use * Bofors 40 mm Automatic Gun L/70 - developed in the 1940s with market entry in 1948, widely used in the Cold War to today Other Bofors gun disambiguation pages * Bofors 57 mm gun * Bofors 120 mm gun External links {{set index ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Oerlikon 20 Mm Cannon
The Oerlikon 20 mm cannon is a series of autocannons based on an original German Becker Type M2 20 mm cannon design that appeared very early in World War I. It was widely produced by Oerlikon Contraves and others, with various models employed by both Allied and Axis forces during World War II. Many versions of the cannon are still used. Blowback-operated models History Origins During World War I, the German industrialist Reinhold Becker developed a 20 mm caliber cannon, known now as the 20 mm Becker using the advanced primer ignition blowback (API blowback) method of operation. This used a 20×70mmRB cartridge and had a cyclic rate of fire of 300 rpm. It was used on a limited scale as an aircraft gun on ''Luftstreitkräfte'' warplanes, and an anti-aircraft gun towards the end of that war. Because the Treaty of Versailles banned further production of such weapons in Germany, the patents and design works were transferred in 1919 to the Swiss firm SEMAG (''Seebach M ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |