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NRP Arpão (S161)
NRP ''Arpão'' (S161) is a Tridente-class attack submarine of the Portuguese Navy. It was commissioned in 2010. References Tridente-class submarines Attack submarines 2010 ships {{submarine-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lisbon Naval Base
The Lisbon Naval Base (Portuguese: ''Base Naval de Lisboa''), is the main installation and operational base of the Portuguese Navy. Located at the former Royal Estate of Alfeite on the south bank of the Tagus river's estuary, near the city of Almada, the installation is sometimes referred to as the Alfeite Naval Base. Most of the Portuguese Naval fleet ships are based at Alfeite, as well as many of its administrative, training and support services. Within its perimeter are also located the Naval School, the Naval Technologies School, the Alfeite Arsenal, the Marine corps Base and other Portuguese Navy units. The Lisbon Naval Base is an administrative entity that – besides the main naval station at Alfeite – manages several other smaller naval facilities in the region. History Lisbon and the neighbor Tagus estuary has always been the largest and most important naval base of Portugal, since the 12th century. During the Age of Discovery, in the 15th and 16th centuries, Lisbo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Torpedo Tube
A torpedo tube is a cylindrical device for launching torpedoes. There are two main types of torpedo tube: underwater tubes fitted to submarines and some surface ships, and deck-mounted units (also referred to as torpedo launchers) installed aboard surface vessels. Deck-mounted torpedo launchers are usually designed for a specific type of torpedo, while submarine torpedo tubes are general-purpose launchers, and are often also capable of deploying naval mine, mines and cruise missiles. Most modern launchers are standardized on a diameter for light torpedoes (deck mounted aboard ship) or a diameter for heavy torpedoes (underwater tubes), although other sizes of torpedo tube have been used: see Torpedo#Classes and diameters, Torpedo classes and diameters. Submarine torpedo tube A submarine torpedo tube is a more complex mechanism than a torpedo tube on a surface ship, because the tube has to accomplish the function of moving the torpedo from the normal atmospheric pressure within t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rádio E Televisão De Portugal
Rádio e Televisão de Portugal (RTP) is the public service broadcasting organisation of Portugal. It operates four national television channels and three national radio stations, as well as several satellite and cable offerings. The current company dates from 2007, with the merger of two previously separate companies Radiodifusão Portuguesa (RDP; the radio broadcaster) and Radiotelevisão Portuguesa (television broadcaster), although they had been grouped under a single holding company and common branding since 2004. RTP is funded by the ''taxa de contribuição audiovisual'' (broadcasting contribution tax), which is incorporated in electricity bills, and television advertising revenues. History Radio The Emissora Nacional de Radiodifusão - usually referred to by its abbreviated designation Emissora Nacional (EN) - was established on 4 August 1935 as the public national radio broadcaster, inheriting the previous broadcasting operations of the Portuguese postal service (CT ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Portuguese Navy
The Portuguese Navy ( pt, Marinha Portuguesa, also known as ''Marinha de Guerra Portuguesa'' or as ''Armada Portuguesa'') is the naval branch of the Portuguese Armed Forces which, in cooperation and integrated with the other branches of the Portuguese military, is charged with the military defense of Portugal. On 12 December 2017, the Portuguese Navy commemorated the 700th anniversary of its official creation by King Denis of Portugal. Tracing its origins back to the 12th century, it is the oldest continuously serving navy in the world. The Navy played a key role at the beginning and during the great voyages of the Age of Discoveries in the 15th and 16th centuries. The result of this technical and scientific discoveries led Portugal to develop advanced ships, including the caravel, new and more sophisticated types of carracks for interoceanic travel and the oceanic galleon, [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tridente-class Submarine
The ''Tridente''-class submarines, also designated as U 209PN, are diesel-electric submarines based on the Type 214 submarine developed by Howaldtswerke-Deutsche Werft GmbH (HDW) for the Portuguese Navy. This class of submarines was acquired by Portugal to replace the previous submarines of the , then being operated by the navy. Originally, HDW proposed the Type 209 submarine (U-209) during the competition, but decided to later enter a new proposal based on the Type 214. It is for this reason that the ''Tridente'' class is commonly designated as the U 209PN. The class and its ships are the first to not be named after marine animals, thus breaking a tradition retracing back to 1913, when the first submarine entered service with the Portuguese Navy. Ships The ''Tridente''-class submarines are wrongly classed in the "diesel-electric" class. Their propulsion is exclusively electric, with electric motors powered by batteries. These batteries may be charged while submerged by "fuel- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harpoon (missile)
The Harpoon is an all-weather, over-the-horizon, anti-ship missile manufactured by McDonnell Douglas (now Boeing Defense, Space & Security). The AGM-84E Standoff Land Attack Missile (SLAM) and later AGM-84H/K SLAM-ER (Standoff Land Attack Missile – Expanded Response) are cruise missile variants. The regular Harpoon uses active radar homing and flies just above the water to evade defenses. The missile can be launched from: * Fixed-wing aircraft (the AGM-84, without the solid-fuel rocket booster) * Surface ships (the RGM-84, fitted with a solid-fuel rocket booster that detaches when expended, to allow the missile's main turbojet to maintain flight) * Submarines (the UGM-84, fitted with a solid-fuel rocket booster and encapsulated in a container to enable submerged launch through a torpedo tube); * Coastal defense batteries, from which it would be fired with a solid-fuel rocket booster. Development In 1965, the United States Navy began studies for a missile in the range ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Torpedo
A modern torpedo is an underwater ranged weapon launched above or below the water surface, self-propelled towards a target, and with an explosive warhead designed to detonate either on contact with or in proximity to the target. Historically, such a device was called an automotive, automobile, locomotive, or fish torpedo; colloquially a ''fish''. The term ''torpedo'' originally applied to a variety of devices, most of which would today be called naval mine, mines. From about 1900, ''torpedo'' has been used strictly to designate a self-propelled underwater explosive device. While the 19th-century battleship had evolved primarily with a view to engagements between armored warships with naval artillery, large-caliber guns, the invention and refinement of torpedoes from the 1860s onwards allowed small torpedo boats and other lighter surface combatant , surface vessels, submarines/submersibles, even improvised fishing boats or frogmen, and later light aircraft, to destroy large shi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alenia Marconi Systems
Alenia Marconi Systems (AMS) was a major European integrated defence electronics company and an equal shares joint venture between BAE Systems and Finmeccanica (now Leonardo S.p.A.) until its dissolution on 3 May 2005. AMS was formed in 1998 by the merger of GEC-Marconi, GEC-Marconi Radar and Defence Systems and Alenia Difesa. Equal shares in the resulting company were then held by Finmeccanica, and GEC-Marconi (later Marconi Electronic Systems (MES)), a division of The General Electric Company (GEC). With the demerger and subsequent sale of its MES division in 1999, GEC's interest in AMS passed to BAE Systems. In 2001 AMS' missile systems division was merged with Aerospatiale Matra Missiles and Matra BAe Dynamics to form MBDA. On 7 October 2003 the United Kingdom, UK holding company for AMS changed its registered name from Alenia Marconi Systems Limited to AMS Limited to comply with the agreements reached regarding use of the name "Marconi" following the sale of Marconi Electr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atlas Elektronik GmbH
Atlas Elektronik is a naval/marine electronics and systems business based in Bremen, Germany. It is involved in the development of integrated sonar systems for submarines and heavyweight torpedoes. The company was a subsidiary of BAE Systems until December 2005, when it was sold to ThyssenKrupp and EADS. Atlas Elektronik became a wholly owned subsidiary of ThyssenKrupp Marine Systems in 2017. History Early history The company was founded in 1902 as ''Norddeutsche Maschinen- und Armaturenfabrik GmbH'', focusing on shipbuilding and naval engineering services. Its name was changed in 1911 to ''Atlas Werke AG'', the origin of its modern-day name. During the First World War, Atlas Werke built U-boats for the Imperial German Navy. After the war, the company shrank in size and began to focus on civilian technology, due to restrictions imposed by the Treaty of Versailles. Following the Nazi seizure of power, the company grew to become an arms supplier for the Kriegsmarine. Atlas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Portugal
Portugal, officially the Portuguese Republic ( pt, República Portuguesa, links=yes ), is a country whose mainland is located on the Iberian Peninsula of Southwestern Europe, and whose territory also includes the Atlantic archipelagos of the Azores and Madeira. It features the westernmost point in continental Europe, and its Iberian portion is bordered to the west and south by the Atlantic Ocean and to the north and east by Spain, the sole country to have a land border with Portugal. Its two archipelagos form two autonomous regions with their own regional governments. Lisbon is the capital and largest city by population. Portugal is the oldest continuously existing nation state on the Iberian Peninsula and one of the oldest in Europe, its territory having been continuously settled, invaded and fought over since prehistoric times. It was inhabited by pre-Celtic and Celtic peoples who had contact with Phoenicians and Ancient Greek traders, it was ruled by the Ro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kelvin Hughes
Hensoldt UK, formerly Kelvin Hughes, is a British company specialising in the design and manufacture of navigation and surveillance systems and a supplier of navigational data to both the commercial marine and government marketplace. The company provides radar systems to navies, governments, coastlines, ports and VTS installations as well as radars for land based security and surveillance applications. Part of Kelvin Hughes' history includes producing the first Type Approved commercial radar in 1947 as well as the first paper chart tracing service in 1971. Modern day products that Kelvin Hughes sell include SharpEye™, a solid state radar with clutter management and Doppler processing. History The Kelvin connection The Kelvin connection is based upon the professional relationship between William Thomson (later-Lord Kelvin) (1824–1907), Professor of Natural Philosophy at Glasgow University from 1846–1899 and James White (1824–1884), a Glasgow-based Optical Instrument ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
