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HMS Sovereign (S108)
HMS ''Sovereign'' was a nuclear-powered fleet submarine of the Royal Navy. Construction Construction of the boat began on 18 September 1970. She was launched on 17 February 1973 and commissioned on 11 July 1974. Operational history In 1976, ''Sovereign'' played a role in Operation Brisk; the submarine surfaced at the geographical North Pole on 20 October 1976 as part of the exercise, testing navigational systems and equipment performance in low temperatures. HMS ''Sovereign'' actually surfaced on 21 October 1976 about halfway between the Geographic North Pole and the northern tip of Ellesmere island. Brisk was a coordinated operation between the Royal Navy and the Canadian Forces Maritime Proving & Evaluation Unit (MP&EU) from CFB Summerside, Prince Edward Island. MP&EU was in a six-year project of evaluating airborne remote sensing devices including a SLAR, Satellite laser ranging, ILRS and a Laser Profilometer which were all used to do imaging during ''Sovereign''s through ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vickers
Vickers was a British engineering company that existed from 1828 until 1999. It was formed in Sheffield as a steel foundry by Edward Vickers and his father-in-law, and soon became famous for casting church bells. The company went public in 1867, acquired more businesses, and began branching out into military hardware and shipbuilding. In 1911, the company expanded into aircraft manufacturer, aircraft manufacture and opened a flying school. They expanded even further into electrical and railway manufacturing, and in 1928 acquired an interest in the Supermarine. Beginning in the 1960s, various parts of the company were nationalised, and in 1999 the rest of the company was acquired by Rolls-Royce Holdings, Rolls-Royce plc, who sold the defence arm to Alvis plc. The Vickers name lived on in Alvis Vickers, until the latter was acquired by BAE Systems in 2004 to form BAE Systems Platforms & Services, BAE Systems Land Systems. History Early history Vickers was formed in Sheffield ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SLAR
Side-looking airborne radar (SLAR) is an aircraft- or satellite-mounted imaging radar pointing perpendicular to the direction of flight (hence ''side-looking''). A squinted (nonperpendicular) mode is possible also. SLAR can be fitted with a standard antenna (real aperture radar) or an antenna using synthetic aperture. The platform of the radar moves in direction of the x-axis. The radar "looks" with the looking angle ''θ'' (or so called off-nadir angle). The angle ''α'' between x-axis and the line of sight (LOS) is called cone angle, the angle ''φ'' between the x-axis and the projection of the line of sight to the (x; y)-plane is called azimuth angle. Cone- and azimuth angle are related by cos''α'' = cos''φ'' ∙ cos''ε''. On the earth surface the wave comes in at the (nominal ellipsoidal) incident angle ''β'' with respect to the vertical axis at this point. (In some publications the incident angle is denominated to as ''θi''.) The antenna illuminate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bay Of Biscay
The Bay of Biscay (), known in Spain as the Gulf of Biscay ( es, Golfo de Vizcaya, eu, Bizkaiko Golkoa), and in France and some border regions as the Gulf of Gascony (french: Golfe de Gascogne, oc, Golf de Gasconha, br, Pleg-mor Gwaskogn), is a gulf of the northeast Atlantic Ocean located south of the Celtic Sea. It lies along the western coast of France from Point Penmarc'h to the Spanish border, and the northern coast of Spain west to Cape Ortegal. The south area of the Bay of Biscay that washes over the northern coast of Spain is known locally as the Cantabrian Sea. The average depth is and the greatest depth is . Name The Bay of Biscay is named (for English speakers) after Biscay on the northern Spanish coast, probably standing for the western Basque districts (''Biscay'' up to the early 19th century). Its name in other languages is: * ast, Mar Cantábricu * eu, Bizkaiko golkoa * br, pleg-mor Gwaskogn * french: golfe de Gascogne (named after Gascony, France) * gl, ... [...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] |
NATO
The North Atlantic Treaty Organization (NATO, ; french: Organisation du traité de l'Atlantique nord, ), also called the North Atlantic Alliance, is an intergovernmental military alliance between 30 member states – 28 European and two North American. Established in the aftermath of World War II, the organization implemented the North Atlantic Treaty, signed in Washington, D.C., on 4 April 1949. NATO is a collective security system: its independent member states agree to defend each other against attacks by third parties. During the Cold War, NATO operated as a check on the perceived threat posed by the Soviet Union. The alliance remained in place after the dissolution of the Soviet Union and has been involved in military operations in the Balkans, the Middle East, South Asia, and Africa. The organization's motto is ''animus in consulendo liber'' (Latin for "a mind unfettered in deliberation"). NATO's main headquarters are located in Brussels, Belgium, while NATO ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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] |
Faslane
His Majesty's Naval Base, Clyde (HMNB Clyde; also HMS ''Neptune''), primarily sited at Faslane on the Gare Loch, is one of three operating bases in the United Kingdom for the Royal Navy (the others being HMNB Devonport and HMNB Portsmouth). It is the navy's headquarters in Scotland and is best known as the home of Britain's nuclear weapons, in the form of nuclear submarines armed with Trident missiles. History Faslane was first constructed and used as a base in the Second World War. During the 1960s, the British Government began negotiating the Polaris Sales Agreement with the United States regarding the purchase of a Polaris missile system to fire British-built nuclear weapons from five specially constructed submarines. In the end, only four were constructed; , , and . These four submarines were permanently based at Faslane. Faslane itself was chosen to host these vessels at the height of the Cold War because of its geographic position, which forms a bastion on the relative ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rosyth
Rosyth ( gd, Ros Fhìobh, "headland of Fife") is a town on the Firth of Forth, south of the centre of Dunfermline. According to the census of 2011, the town has a population of 13,440. The new town was founded as a Garden city-style suburb and naval dockyards in 1909, and was built as the coastal port of Dunfermline. Rosyth is almost contiguous with neighbouring Inverkeithing, separated only by the M90 motorway. Rosyth railway station is on the Fife Circle Line. Governance Rosyth is within the Cowdenbeath constituency of the Scottish Parliament, currently held by Annabelle Ewing of the Scottish National Party, as well as the Mid Scotland and Fife electoral region. For the UK Parliament, Rosyth is located in the Dunfermline and West Fife Westminster constituency, currently held by Douglas Chapman MP for the Scottish National Party. Rosyth has three representatives on Fife Council: Brian Goodall (Scottish National Party), Tony Jackson (Scottish National Party) and Andrew ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laser Profilometer
A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation. The word "laser" is an acronym for "light amplification by stimulated emission of radiation". The first laser was built in 1960 by Theodore H. Maiman at Hughes Research Laboratories, based on theoretical work by Charles Hard Townes and Arthur Leonard Schawlow. A laser differs from other sources of light in that it emits light which is coherence (physics), ''coherent''. Spatial coherence allows a laser to be focused to a tight spot, enabling applications such as laser cutting and Photolithography#Light sources, lithography. Spatial coherence also allows a laser beam to stay narrow over great distances (collimated light, collimation), enabling applications such as laser pointers and lidar (light detection and ranging). Lasers can also have high temporal coherence, which allows them to emit light with a very narrow frequency spectrum, spectru ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Satellite Laser Ranging
In satellite laser ranging (SLR) a global network of observation stations measures the round trip time of flight of ultrashort pulses of light to satellites equipped with retroreflectors. This provides instantaneous range measurements of millimeter level precision which can be accumulated to provide accurate measurement of orbits and a host of important scientific data. The laser pulse can also be reflected by the surface of a satellite without a retroreflector, which is used for tracking space debris. Satellite laser ranging is a proven geodetic technique with significant potential for important contributions to scientific studies of the earth/atmosphere/ocean system. It is the most accurate technique currently available to determine the geocentric position of an Earth satellite, allowing for the precise calibration of radar altimeters and separation of long-term instrumentation drift from secular changes in ocean topography. Its ability to measure the variations over time in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CFB Summerside
Canadian Forces Base Summerside (CFB Summerside) was an air force base located in St. Eleanors, Prince Edward Island, Canada, now part of the city of Summerside. RCAF Station Summerside World War II The airfield was constructed by the Royal Canadian Air Force (RCAF) between 1940–1941 and was named RCAF Station Summerside. It was home to No. 9 Service Flying Training School RCAF, a flight school that operated under the British Commonwealth Air Training Plan (BCATP). Relief or emergency airfields were located at nearby RCAF Station Mount Pleasant and Wellington. Airmen were trained on Harvards. In July 1942 No. 9 SFTS moved to RCAF Station Centralia and was replaced by No. 1 General Reconnaissance School RCAF which flew Ansons. No. 1 GRS was renamed to No. 1 Reconnaissance and Navigation School in 1945. Aerodrome information The airfield was constructed in the typical BCATP wartime pattern, with runways formed in a triangle. In approximately 1942 the aerodrome was listed as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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