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RDV 01 Crystal
RDV 01 ''Crystal'' was a research vessel of the Royal Navy. An unpowered floating platform, it was designed to be used during sonar research and development projects at the Admiralty Underwater Weapons Establishment (AUWE) at Portland Harbour, Dorset. It was not fitted with any propulsion or steering gear. Ordered from the builders HM Dockyard Royal Navy Dockyards (more usually termed Royal Dockyards) were state-owned harbour facilities where ships of the Royal Navy were built, based, repaired and refitted. Until the mid-19th century the Royal Dockyards were the largest industrial c ..., Devonport, in December 1969, it was launched in March 1971. It was sold on 18 September 1992 to a Dutch concern. References 1971 ships Ships of the Royal Navy {{ship-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HMNB Devonport
His Majesty's Naval Base, Devonport (HMNB Devonport) is one of three operating bases in the United Kingdom for the Royal Navy (the others being HMNB Clyde and HMNB Portsmouth) and is the sole nuclear repair and refuelling facility for the Royal Navy. The largest naval base in Western Europe, HMNB Devonport is located in Devonport, in the west of the city of Plymouth, England. The base began as Royal Navy Dockyard in the late 17th century, but shipbuilding ceased at Devonport in the early 1970s, although ship maintenance work has continued. The now privatised maintenance facilities are operated by Babcock International Group, who took over the previous owner Devonport Management Limited (DML) in 2007. DML had been running the Dockyard since privatisation in 1987. From 1934 until the early 21st century the naval barracks on the site was named HMS ''Drake'' (it had previously been known as HMS ''Vivid'' after the base ship of the same name). The name HMS ''Drake'' and its c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Navy
The Royal Navy (RN) is the United Kingdom's naval warfare force. Although warships were used by English and Scottish kings from the early medieval period, the first major maritime engagements were fought in the Hundred Years' War against France. The modern Royal Navy traces its origins to the early 16th century; the oldest of the UK's armed services, it is consequently known as the Senior Service. From the middle decades of the 17th century, and through the 18th century, the Royal Navy vied with the Dutch Navy and later with the French Navy for maritime supremacy. From the mid 18th century, it was the world's most powerful navy until the Second World War. The Royal Navy played a key part in establishing and defending the British Empire, and four Imperial fortress colonies and a string of imperial bases and coaling stations secured the Royal Navy's ability to assert naval superiority globally. Owing to this historical prominence, it is common, even among non-Britons, to ref ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 navigation, 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Research And Development
Research and development (R&D or R+D), known in Europe as research and technological development (RTD), is the set of innovative activities undertaken by corporations or governments in developing new services or products, and improving existing ones. Research and development constitutes the first stage of development of a potential new service or the production process. R&D activities differ from institution to institution, with two primary models of an R&D department either staffed by engineers and tasked with directly developing new products, or staffed with industrial scientists and tasked with applied research in scientific or technological fields, which may facilitate future product development. R&D differs from the vast majority of corporate activities in that it is not intended to yield immediate profit, and generally carries greater risk and an uncertain return on investment. However R&D is crucial for acquiring larger shares of the market through the marketisation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Admiralty Research Establishment
The Admiralty Research Establishment (commonly known as ARE) was formed on 1 April 1984 from various Admiralty establishments. It became part of the Defence Research Agency on 1 April 1991. Constituent parts on formation * Admiralty Surface Weapons Establishment (ASWE), Portsdown, Portsmouth (1959–1984) * Admiralty Marine Technology Establishment (1978–1984) – formed from amalgamation of other research departments in 1977 * Admiralty Underwater Weapons Establishment (AUWE), Portland, Dorset (1959–1984). References Government munitions production in the United Kingdom Government agencies established in 1984 Admiralty departments Military research establishments of the United Kingdom 1991 disestablishments in the United Kingdom 1984 establishments in the United Kingdom {{UK-mil-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Portland Harbour
Portland Harbour is located beside the Isle of Portland, Dorset, on the south coast of England. Construction of the harbour began in 1849; when completed in 1872, its surface area made it the largest man-made harbour in the world, and remains one of the largest in the world today. It is naturally protected by Portland to the south, Chesil Beach to the west and mainland Dorset to the north. It consists of four breakwaters — two southern and two northern. These have a total length of and enclose approximately of water. Portland Harbour was built by the Admiralty as a facility for the Royal Navy (though access was also available to merchant ships); on 11 December 1923 it was formally designated HM Naval Base (HMNB) Portland, and continued to serve as such until closure in 1995. History Creation of harbour of refuge (1844–1872) The original harbour was naturally protected by the south coast of England, Chesil Beach and the Isle of Portland, providing refuge for ships aga ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The National Archives (United Kingdom)
, type = Non-ministerial department , seal = , nativename = , logo = Logo_of_The_National_Archives_of_the_United_Kingdom.svg , logo_width = 150px , logo_caption = , formed = , preceding1 = , dissolved = , superseding = , jurisdiction = England and Wales, HM Government , headquarters = Kew, Richmond, Greater London TW9 4DU , region_code = GB , coordinates = , employees = 679 , budget = £43.9 million (2009–2010) , minister1_name = Michelle Donelan , minister1_pfo = Secretary of State for Digital, Culture, Media and Sport , minister2_name = TBC , minister2_pfo = Parliamentary Under Secretary of State , chief1_name = Jeff James , chief1_position = Chief Executive and Keeper of the Public Records , chief2_name = , chief2_position = , chief3_name = , chief3_position = , chief4_name = , chief4_position = , chief5_name = , chief5_position = , agency_type = , chief6_name = , chief6_position = , chief7_name = , chief7_position = ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Devonport, Devon
Devonport ( ), formerly named Plymouth Dock or just Dock, is a district of Plymouth in the English county of Devon, although it was, at one time, the more important settlement. It became a county borough in 1889. Devonport was originally one of the "Three Towns" (along with Plymouth and Stonehouse, Plymouth, East Stonehouse); these merged in 1914 to form what would become in 1928 the City of Plymouth. It is represented in the Parliament of the United Kingdom as part of the Plymouth Sutton and Devonport (UK Parliament constituency), Plymouth Sutton and Devonport constituency. Its elected Member of Parliament (MP) is Luke Pollard, who is a member of the Labour Party (UK), Labour Party. The population of the ward at the 2011 census was 14,788. History Plymouth Dock In 1690 the Admiralty gave a contract to Robert Waters from Portsmouth to build a stone dock at Point Froward on the east bank of the Hamoaze at the mouth of the River Tamar. Plymouth Dock, as Devonport was originally ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1971 Ships
* The year 1971 had three partial solar eclipses (Solar eclipse of February 25, 1971, February 25, Solar eclipse of July 22, 1971, July 22 and Solar eclipse of August 20, 1971, August 20) and two total lunar eclipses (February 1971 lunar eclipse, February 10, and August 1971 lunar eclipse, August 6). The world population increased by 2.1% this year, the highest increase in history. Events January * January 2 – 66 people are killed and over 200 injured 1971 Ibrox disaster, during a crush in Glasgow, Scotland. * January 5 – The first ever One Day International cricket match is played between Australia and England at the Melbourne Cricket Ground. * January 8 – Tupamaros kidnap Geoffrey Jackson, British ambassador to Uruguay, in Montevideo, keeping him captive until September. * January 9 – Uruguayan president Jorge Pacheco Areco demands emergency powers for 90 days due to kidnappings, and receives them the next day. * January 12 – The landmark United ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
