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Submarine Command Course
The Submarine Command Course (SMCC), previously known as the Commanding Officers Qualifying Course (COQC), and informally known as The Perisher is a training course for naval officers preparing to take command of a submarine. Created by the Royal Navy during World War I, the course was originally intended to address the high attrition rate of submarine commanders, as the previous method of handing down knowledge from officer to officer was prevented by wartime deaths. Following World War II, the Royal Netherlands Navy became involved in the course; the Dutch later partnered with the British to run the course, and following the British conversion to a fully nuclear submarine fleet, took over responsibility for running the course for diesel-electric submarines. Officers from other nations regularly participate. The four-month course is run in four stages, the first and third involve learning ashore in simulators, while the second involves learning at sea. The fourth phase is the asse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Submarine
A submarine (or sub) is a watercraft capable of independent operation underwater. It differs from a submersible, which has more limited underwater capability. The term is also sometimes used historically or colloquially to refer to remotely operated vehicles and Autonomous underwater vehicle, robots, as well as medium-sized or smaller vessels, such as the midget submarine and the wet sub. Submarines are referred to as ''boats'' rather than ''ships'' irrespective of their size. Although experimental submarines had been built earlier, submarine design took off during the 19th century, and they were adopted by several navies. They were first widely used during World War I (1914–1918), and are now used in many navy, navies, large and small. Military uses include attacking enemy surface ships (merchant and military) or other submarines, and for aircraft carrier protection, Blockade runner, blockade running, Ballistic missile submarine, nuclear deterrence, reconnaissance, conventio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Walrus Class Submarine
The ''Walrus''-class submarine is the only submarine class currently in operation in the Royal Netherlands Navy. The boats have been in service since 1990 and are all named after sea mammals. History In 1974, the Royal Netherlands Navy announced, through the Ministry of Defence's 10-year plan , that it wanted to replace its aging s.H. Vredeling, C.L.J. van Lent, A. Stemerdink, pp. 61. Since the 1960s, the Royal Netherlands Navy had been conducting studies and research into a suitable replacement attack submarine. This research initiative concluded that the Netherlands should build conventional diesel-electric submarines, as nuclear submarines were costly and could only be constructed, crewed, and maintained by countries with major navies such as the United States, France and the United Kingdom. Nonetheless, even with the diesel-electric submarine, the Dutch government sought to work together with international allies to reduce construction costs. Between 1975 and 1978, the desig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Naval Education And Training In The United Kingdom
A navy, naval force, or maritime force is the branch of a nation's armed forces principally designated for naval and amphibious warfare; namely, lake-borne, riverine, littoral, or ocean-borne combat operations and related functions. It includes anything conducted by surface ships, amphibious ships, submarines, and seaborne aviation, as well as ancillary support, communications, training, and other fields. The strategic offensive role of a navy is projection of force into areas beyond a country's shores (for example, to protect sea-lanes, deter or confront piracy, ferry troops, or attack other navies, ports, or shore installations). The strategic defensive purpose of a navy is to frustrate seaborne projection-of-force by enemies. The strategic task of the navy also may incorporate nuclear deterrence by use of submarine-launched ballistic missiles. Naval operations can be broadly divided between riverine and littoral applications (brown-water navy), open-ocean applications ( bl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Navy Submarine Service
The Royal Navy Submarine Service is one of the five fighting arms of the Royal Navy. It is sometimes known as the Silent Service, as submarines are generally required to operate undetected. The service operates six fleet submarines ( SSNs), of the and es (with two further ''Astute''-class boats currently under construction), and four ballistic missile submarines (SSBN), of the . All of these submarines are nuclear powered. Since 1993 the post of Flag Officer Submarines has been dual-hatted with the post of Commander Operations. The Royal Navy's senior submariner was for many years located at in Hampshire. It moved from ''Dolphin'' to the Northwood Headquarters in 1978. The Submarine School is now at at Torpoint in Cornwall. History In 1900 the Royal Navy ordered five submarines from Vickers Shipbuilding and Engineering of Barrow-in-Furness, designed by Electric Boat Company. The following year the first submarine, , was launched, and the navy recruited six officers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Submarine Warfare Insignia
The Submarine Warfare Insignia (usually known as '"Dolphins"') are worn by qualified submariners. Australia In the Royal Australian Navy Submarine Service, sailors who qualify as submariners are awarded a badge depicting two dolphins and a crown. This badge (known as a sailor's 'dolphins') was designed by Commander Alan McIntosh and was introduced in 1966. United Kingdom The British Royal Navy Submarine Service first issued badges to crew members during the 1950s, and adopted the current badge depicting two dolphins and a crowned anchor in 1972. The "dolphin" is a second specialization earned after completing initial training in a chosen trade. France The French Navy has three levels of badges: * Basic level: For beginners in the world of submariners, who have succeeded in a course and the final exam (''Certificat Elementaire de sous-marinier'' or CE) * Superior level: For confirmed submariners who have succeeded in the exam (''Certificat Supérieur de sous-marinier'' or CS) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Situational Awareness
Situational awareness or situation awareness (SA) is the perception of environmental elements and events with respect to time or space, the comprehension of their meaning, and the projection of their future status. An alternative definition is that situation awareness is adaptive, externally-directed consciousness that has as its products knowledge about a dynamic task environment and directed action within that environment. However, while Endsley's definition is widespread, the theory and measures used to develop it do not attract widespread consensus. SA is a nebulous concept which shares many criticisms with those levelled at the idea of consciousness itself. An early criticism of the definition and model illustrates a reasoning fallacy which has yet to be addressed in the development of SA definition and theory: Situation awareness has been recognized as a critical, yet often elusive, foundation for successful decision-making across a broad range of situations, many of which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Active Sonar
Sonar (sound navigation and ranging or sonic navigation and ranging) is a technique that uses sound propagation (usually underwater, as in submarine navigation) to navigate, measure distances (ranging), communicate with or detect objects on or under the surface of the water, such as other vessels. "Sonar" can refer to one of two types of technology: ''passive'' sonar means listening for the sound made by vessels; ''active'' sonar means emitting pulses of sounds and listening for echoes. Sonar may be used as a means of acoustic location and of measurement of the echo characteristics of "targets" in the water. Acoustic location in air was used before the introduction of radar. Sonar may also be used for robot navigation, and SODAR (an upward-looking in-air sonar) is used for atmospheric investigations. The term ''sonar'' is also used for the equipment used to generate and receive the sound. The acoustic frequencies used in sonar systems vary from very low (infrasonic) to extrem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fin (submarine)
In naval parlance, the sail (American usage) or fin (British/Commonwealth usage) (also known as a fairwater) of a submarine is the tower-like structure found on the Dorsum (biology), dorsal (topside) surface of submarines. Submarine sails once housed the conning tower (command and communications data center), the periscope, periscope(s), radar and communications masts (Antenna (radio), antenna), though most of these functions have now been relocated to the hull proper (and so the sail is no longer considered a "conning tower"). When above the water's surface, the sail serves as an observation platform. It also provides an entrance and exit point on the submarine that has enough Freeboard (nautical), freeboard to prevent the submarine being swamped. Under water, the sail acts as a vertical stabilizer. In some submarines, the sail also supports diving planes (or fairwater planes), which are control surfaces used for underwater stability and steering.Office of Naval ResearchSubmarines ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rules Of Engagement
Rules of engagement (ROE) are the internal rules or directives afforded military forces (including individuals) that define the circumstances, conditions, degree, and manner in which the use of force, or actions which might be construed as provocative, may be applied. They provide authorization for and/or limits on, among other things, the use of force and the employment of certain specific capabilities. In some nations, articulated ROE have the status of guidance to military forces, while in other nations, ROE constitute lawful command. Rules of engagement do not normally dictate how a result is to be achieved, but will indicate what measures may be unacceptable. While ROE is used in both domestic and international operations by some militaries, ROE is not used for domestic operations in the United States. Instead, the use of force by the U.S. military in such situations is governed by Rules for the Use of Force (RUF). An abbreviated description of the rules of engagement ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Military Exercise
A military exercise or war game is the employment of military resources in training for military operations, either exploring the effects of warfare or testing strategies without actual combat. This also serves the purpose of ensuring the combat readiness of garrisoned or deployable forces prior to deployment from a home base. While both war games and military exercises aim to simulate real conditions and scenarios for the purpose of preparing and analyzing those scenarios, the distinction between a war game and a military exercise is determined, primarily, by the involvement of actual military forces within the simulation, or lack thereof. Military exercises focus on the simulation of real, full-scale military operations in controlled hostile conditions in attempts to reproduce war time decisions and activities for training purposes or to analyze the outcome of possible war time decisions. War games, however, can be much smaller than full-scale military operations, do not typi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corruption (linguistics)
Language change is variation over time in a language's features. It is studied in several subfields of linguistics: historical linguistics, sociolinguistics, and evolutionary linguistics. Traditional theories of historical linguistics identify three main types of change: systematic change in the pronunciation of phonemes, or sound change; borrowing, in which features of a language or dialect are altered as a result of influence from another language or dialect; and analogical change, in which the shape or grammatical behavior of a word is altered to more closely resemble that of another word. All living languages are continually undergoing change. Some commentators use derogatory labels such as "corruption" to suggest that language change constitutes a degradation in the quality of a language, especially when the change originates from human error or is a prescriptively discouraged usage. Modern linguistics rejects this concept, since from a scientific point of view such inn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Den Helder
Den Helder () is a municipality and a city in the Netherlands, in the province of North Holland. Den Helder occupies the northernmost point of the North Holland peninsula. It is home to the country's main naval base. From here the Royal TESO ferryboat service operates the transportation link between Den Helder and the nearby Dutch Wadden island of Texel to the north. Etymology Before the year 1928 the official name of Den Helder was Helder. The origin of the name Helder is not entirely clear. The name Helder may have come from ''Helle/Helde'', which means "hill" or "hilly grounds", or from ''Helre'', which means a sandy ridge. Another explanation is that the name derived from ''Helsdeur'' (Hell's Door), likely because in the water between Den Helder and Texel (called Marsdiep) the current was so strong that many ships were lost. History Huisduinen was the original older part of the city, whereas Helder itself was a nearby smaller hamlet. When a harbour was built near Hel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
