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Type 45 Destroyers
The Type 45 destroyer, also known as the D or ''Daring'' class, is a class of six guided-missile destroyers built for the United Kingdom's Royal Navy in the early 21st century. The class is primarily designed for anti-aircraft and anti-missile warfare and is built around the PAAMS (Sea Viper) air-defence system using the SAMPSON Active electronically scanned array (AESA) and the S1850M long-range radars. The first three destroyers were assembled by BAE Systems Surface Fleet Solutions from partially prefabricated "blocks" built at different shipyards; the remaining three were built by BAE Systems Maritime – Naval Ships. The first ship in the ''Daring'' class, HMS ''Daring'', was launched on 1 February 2006 and commissioned on 23 July 2009. The Type 45 destroyers were built to replace the Type 42 (''Sheffield''-class) destroyers that had served during the Falklands War, with the last Type 42 being decommissioned in 2013. The National Audit Office reported that, during an "in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Portsmouth Naval Base
His Majesty's Naval Base, Portsmouth (HMNB Portsmouth) is one of three operating bases in the United Kingdom for the Royal Navy (the others being HMNB Clyde and HMNB Devonport). Portsmouth Naval Base is part of the city of Portsmouth; it is located on the eastern shore of Portsmouth Harbour, north of the Solent and the Isle of Wight. Until the early 1970s, it was officially known as Portsmouth Royal Dockyard (or HM Dockyard, Portsmouth); thereafter the term 'Naval Base' gained currency, acknowledging a greater focus on personnel and support elements alongside the traditional emphasis on building, repairing and maintaining ships. In 1984 Portsmouth's Royal Dockyard function was downgraded and it was formally renamed the 'Fleet Maintenance and Repair Organisation' (FMRO). The FMRO was privatized in 1998, and for a time (from 2002 to 2014), shipbuilding, in the form of block construction, returned. Around 2000, the designation HMS ''Nelson'' (which until then had been specific to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Navigation
Navigation is a field of study that focuses on the process of monitoring and controlling the movement of a craft or vehicle from one place to another.Bowditch, 2003:799. The field of navigation includes four general categories: land navigation, marine navigation, aeronautic navigation, and space navigation. It is also the term of art used for the specialized knowledge used by navigators to perform navigation tasks. All navigational techniques involve locating the navigator's position compared to known locations or patterns. Navigation, in a broader sense, can refer to any skill or study that involves the determination of position and direction. In this sense, navigation includes orienteering and pedestrian navigation. History In the European medieval period, navigation was considered part of the set of '' seven mechanical arts'', none of which were used for long voyages across open ocean. Polynesian navigation is probably the earliest form of open-ocean navigation; it was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Venom (missile)
Sea Venom is an Anglo-French lightweight anti-ship missile developed by MBDA to equip the French Navy and the Royal Navy. The missile is known as ''Anti-Navire Léger'' (ANL) in France and Sea Venom (formerly "Future Anti-Surface Guided Weapon (Heavy)") in the United Kingdom. While initial operating capability had been expected with the Royal Navy in 2022, Sea Venom missiles were reported deployed with Royal Navy Wildcat helicopters operating as part of the Royal Navy's carrier strike group in 2021. The first test launch, from an AS365 Dauphin helicopter of the French DGA defence procurement agency, was successfully conducted on 21 June 2017. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AgustaWestland AW159
The AgustaWestland AW159 Wildcat (previously called the Future Lynx and Lynx Wildcat) is a British military helicopter. It is an improved version of the Westland Super Lynx designed to serve in the battlefield utility, search and rescue and anti-surface warfare roles. In British service, common variants are being operated by both the Royal Navy and British Army, having replaced their Lynx Mk.7/8/9 predecessors. The AW159 has also been offered to several export customers, and has been ordered by the Republic of Korea Navy and the Philippine Navy. Development Background In 1995, the British Government announced that the Royal Navy's existing Westland Lynx helicopters were to be replaced; at that point, the service was intended to operate an all- Merlin fleet. Despite this stated intent, Westland Helicopters continued to hold talks with the Ministry of Defence (MOD) to find a future role for the type during the late 1990s; the firm issued multiple proposals to either extend the l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SSTD
The United Kingdom Surface Ship Torpedo Defence (SSTD) system entered into service with the Royal Navy in 2004. The system is produced by Ultra ElectronicsSSTD Datasheet at the Ultra Electronics website and is known as S2170 or Sonar 270 by the and as Sea Sentor in the export market. The system consists of * an acoustic passive towed array * a towed acoustic countermeasure (flexible) * a single-drum winch * a processing cabinet * 2 display consoles * 2 expendable acoustic device launchers (1 port, 1 starboard) * 16 expendable acoustic devices (8 in each launcher) The system is a footprint compatible replacement for the |
Naval Decoy IDS300
Naval Decoy IDS300 (Inflatable Decoy System) is a passive, off-board, octahedral, corner reflector decoy of the Royal Navy's Type 45 destroyer and the US Navy's destroyer, forming part of a layered defence to counter anti-ship missiles. Unlike chaff, the decoy is persistent and will float for up to three hours in sea state 4. Jane's was first to report the United Kingdom was looking for a new floating decoy as part of a program known as the Naval Passive Off-Board Decoy (N-POD), on March 3, 2019. In US Navy service, it is designated as the Mk 59 decoy launching system. The system is made by Irvin Aerospace Ltd, Hertfordshire in the United Kingdom. Deployment The decoy is launched out of a deck-mounted tube and self-inflates on the sea surface before being released to free-float past the stern to mimic a ship's radar and radio signatures. The deployment and inflation process takes seconds and the decoy is completely independent, requiring no further input from the ship. Typica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seagnat
The Seagnat Control System (sometimes spelled SeaGnat or Sea Gnat) is a British decoy system produced by System Engineering & Assessment (SEA) Ltd firing rounds produced by Chemring Countermeasures Ltd used on many NATO warships to safeguard against incoming missiles. Each unit consists of six launchers that can be loaded with different rounds, depending on the threat: *Mk214 Seduction Chaff *Mk216 Distraction Chaff *Mk245 "GIANT" IR Round *Mk251 "siren" Active Decoy Round (only on later "DLH" versions) The rounds are launched as decoys to trick incoming missiles into missing the ship or to prematurely detonating. Rounds are launched from NATO standard 130mm Mark 36 SRBOC launchers, either fixed or trainable, and typically mounted in groups of around six barrels. The Active Decoy Round has three phases: a low g rocket motor to project it away from the ship, a drogue to slow the round, and a parasail wing that allows the decoy to slowly maneuver as it descends to the water. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IHS Jane's 360
Jane's Information Group, now styled Janes, is a global open-source intelligence company specialising in military, national security, aerospace and transport topics, whose name derives from British author Fred T. Jane. History Jane's Information Group was founded in 1898 by Fred T. Jane, who had begun sketching ships as an enthusiast naval artist while living in Portsmouth. This gradually developed into an encyclopedic knowledge, culminating in the publishing of ''All the World's Fighting Ships'' (1898). The company then gradually branched out into other areas of military expertise. The books and trade magazines published by the company are often considered the ''de facto'' public source of information on warfare and transportation systems. Based in Greater London for most of its existence, the group was owned by the Thomson Corporation, The Woodbridge Company, then IHS Markit, before being acquired by Montagu Private Equity in 2019. Description The company name is officially ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
EDO Corporation
EDO Corporation was an American company which was acquired by ITT Corporation in 2007. EDO designed and manufactured products for defense, intelligence, and commercial markets, and provided related engineering and professional services. It employed 4,000 people worldwide and had revenues of $715 million in 2006. EDO's assets went to ITT Defense Electronics and Services. As of May 2015, these assets were now part of Harris Corporation, and since June 2019 L3Harris Technologies. History Earl Dodge Osborn founded the Edo Aircraft Corporation in 1925. The company's first successful product line was pontoons for floatplanes. With the outbreak of World War II, the company's focus shifted, and EDO began to provide subassemblies for military aircraft. This shift in emphasis led to the company being renamed the EDO Corporation in November 1947. EDO became a public company in 1956 with its listing on the American Stock Exchange, and moved to the New York Stock Exchange in 1983. An ag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ultra Electronics
Ultra Electronics Holdings is a British defence and security company. It was listed on the London Stock Exchange and was a constituent of the FTSE 250 Index until it was acquired by Cobham, which is itself owned by Advent International. History Early activities The company that would eventually become Ultra Electronics was started by wireless specialist Teddy Rosen as Edward E. Rosen & Co. during 1920. The firm was initially focused upon the manufacture of high quality headphones and loudspeakers. During 1923, the company relocated to new premises at Harrow Road, London. In 1925, a new company, known as ''Ultra Electric Ltd.'', was formed; the ''Ultra'' name had been previously used for one of its products, the first commercial moving iron loudspeaker. During 1930, Ultra launched its first all-electric radio receiver. During 1931, the firm introduced its first mains-powered wireless set, known as the ''Ultra Twin Cub''. That same year, Ultra received its first order from the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Raytheon
Raytheon Technologies Corporation is an American multinational aerospace and defense conglomerate headquartered in Arlington, Virginia. It is one of the largest aerospace and defense manufacturers in the world by revenue and market capitalization. In addition, it is one of the largest providers of intelligence services. Raytheon Technologies manufactures aircraft engines, avionics, aerostructures, cybersecurity, guided missiles, air defense systems, satellites, and drones. The company is also a large military contractor, getting a significant portion of its revenue from the U.S. government. The company is the result of the merger of equals between the aerospace subsidiaries of United Technologies Corporation (UTC) and the Raytheon Company, which was completed on April 3, 2020. Before the merger, UTC spun off its non-aerospace subsidiaries Otis Elevator Company and Carrier Corporation. UTC is the nominal survivor of the merger but it changed its name to Raytheon Technologies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
F Band (NATO)
The NATO F band is the obsolete designation given to the radio frequencies from 3 000 to 4 000 MHz (equivalent to wavelengths between 10 and 7.5 cm) during the cold war period. Since 1992 frequency allocations, allotment and assignments are in line to NATO Joint Civil/Military Frequency Agreement (NJFA). However, in order to identify military radio spectrum requirements, e.g. for crises management planning, training, Electronic warfare Electronic warfare (EW) is any action involving the use of the electromagnetic spectrum (EM spectrum) or directed energy to control the spectrum, attack an enemy, or impede enemy assaults. The purpose of electronic warfare is to deny the opponen ... activities, or in military operations, this system is still in use. References Radio spectrum {{Wireless-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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