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HMS Crescent (1892)
HMS ''Crescent'' was a first class cruiser of the in the British Royal Navy. ''Crescent'', and her sister ship , were built to a slightly modified design and are sometimes considered a separate class. She was launched in 1892, saw early service at the Australia Station and the North America and West Indies Station, served in the First World War, and was sold for breaking up in 1921. Construction ''Crescent'' had a length of long overall and between perpendiculars, with a beam of and a draught of . She displaced .Chesneau and Kolesnik 1979, p. 66. Armament consisted of two 9.2-inch guns, on the ships centreline, backed up by ten six-inch guns, of which four were in casemates on the main deck and the remainder behind open shields. Twelve 6-pounder and four 3-pounder guns provided anti-torpedo-boat defences, while four 18 inch (450 mm) torpedo tubes were fitted. The Edgars were protected cruisers, with an arched, armoured deck thick at about waterline level. The casema ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Portsmouth Dockyard
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] |
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] |
Jamaica
Jamaica (; ) is an island country situated in the Caribbean Sea. Spanning in area, it is the third-largest island of the Greater Antilles and the Caribbean (after Cuba and Hispaniola). Jamaica lies about south of Cuba, and west of Hispaniola (the island containing the countries of Haiti and the Dominican Republic); the British Overseas Territory of the Cayman Islands lies some to the north-west. Originally inhabited by the indigenous Taíno peoples, the island came under Spanish rule following the arrival of Christopher Columbus in 1494. Many of the indigenous people either were killed or died of diseases, after which the Spanish brought large numbers of African slaves to Jamaica as labourers. The island remained a possession of Spain until 1655, when England (later Great Britain) conquered it, renaming it ''Jamaica''. Under British colonial rule Jamaica became a leading sugar exporter, with a plantation economy dependent on the African slaves and later their des ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trinidad
Trinidad is the larger and more populous of the two major islands of Trinidad and Tobago. The island lies off the northeastern coast of Venezuela and sits on the continental shelf of South America. It is often referred to as the southernmost island in the West Indies. With an area of , it is also the List of Caribbean islands by area, fifth largest in the West Indies. Name The original name for the island in the Arawak language, Arawaks' language was which meant "Land of the Hummingbird". Christopher Columbus renamed it ('The Island of the Holy Trinity, Trinity'), fulfilling a vow he had made before setting out on his third voyage. This has since been shortened to ''Trinidad''. History Island Caribs, Caribs and Arawaks lived in Trinidad long before Christopher Columbus encountered the islands on his third voyage on 31 July 1498. The island remained Spanish until 1797, but it was largely settled by French colonists from the French Caribbean, especially Martinique.Besson, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Naval Dockyard, Halifax
Royal Naval Dockyard, Halifax was a Royal Navy base in Halifax, Nova Scotia. Established in 1759, the Halifax Yard served as the headquarters for the Royal Navy's North American Station for sixty years, starting with the Seven Years' War. The Royal Navy continued to operate the station until it was closed in 1905. The station was sold to Canada in 1907 becoming Her Majesty's Canadian Dockyard, a function it still serves today as part of CFB Halifax. History Halifax Harbour had served as a Royal Navy seasonal base from the founding of the city in 1749, using temporary facilities and a careening beach on Georges Island. The British purchased the property which now contains the Fleet Maintenance Facility Cape Scott for the Naval Yard. This property had belonged to John Gorham (Gorham Point), Captain Ephraim Cook, Philip Durell, Joseph Gerrish and William Nesbitt. (In the summer of 1751, Gorham built the first registered vessel in Halifax, a brig he named Osborn Galley at Go ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Naval Dockyard, Bermuda
HMD Bermuda ( Her/His Majesty's Dockyard, Bermuda) was the principal base of the Royal Navy in the Western Atlantic between American independence and the Cold War. The Imperial fortress colony of Bermuda had occupied a useful position astride the homeward leg taken by many European vessels from the New World since before its settlement by England in 1609. French privateers may have used the islands as a staging place for operations against Spanish galleons in the 16th century. Bermudian privateers certainly played a role in many English and British wars following settlement, with its utility as a base for his privateers leading to the Earl of Warwick, the namesake of Warwick Parish, becoming the most important investor of the Somers Isles Company. Despite this, it was not until the loss of bases on most of the North American Atlantic seaboard (following US independence) threatened Britain's supremacy in the Western Atlantic that the island assumed great importance as a naval bas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frederick Bedford
Admiral Sir Frederick George Denham Bedford, (24 December 1838 – 30 January 1913) was a senior Royal Navy officer and Governor of Western Australia from 24 March 1903 to 22 April 1909. Naval career Bedford was born on 24 December 1838, and joined the Royal Navy at the age of 14. He later served in the Crimean War. Bedford was appointed Commander-in-Chief, Cape of Good Hope and West Coast of Africa Station in 1892: in 1894, Bedford was involved in an action against Nana Olomu Chief of Benin. Brohomi was burnt down in 1894 by a combined force of the British Naval Brigade and the Niger Coast Protectorate Force under Bedford and the Consul-General Ralph Moor. It is believed over 500–600 slaves were freed during the operation. On 22 February 1895, a British naval force, under the command of Bedford at the behest of the Royal Niger Company, granted a royal charter by Queen Victoria in 1886, laid siege on Brass, the chief city of the Ljo people of Nembe in Nigeria's Niger Delt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flagship
A flagship is a vessel used by the commanding officer of a group of naval ships, characteristically a flag officer entitled by custom to fly a distinguishing flag. Used more loosely, it is the lead ship in a fleet of vessels, typically the first, largest, fastest, most heavily armed, or best known. Over the years, the term "flagship" has become a metaphor used in industries such as broadcasting, automobiles, education, technology, airlines, and retail to refer to their highest profile or most expensive products and locations. Naval use In common naval use, the term ''flagship'' is fundamentally a temporary designation; the flagship is wherever the admiral's flag is being flown. However, admirals have always needed additional facilities, including a meeting room large enough to hold all the captains of the fleet and a place for the admiral's staff to make plans and draw up orders. Historically, only larger ships could accommodate such requirements. The term was also used by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Engineer (UK Magazine)
''The Engineer'' is a London-based monthly magazine and website covering the latest developments and business news in engineering and technology in the UK and internationally. History and description ''The Engineer'' was founded in January 1856. It was established by Edward Charles Healey, an entrepreneur and engineering enthusiast with financial interests in the railways whose friends included Robert Stephenson and Isambard Kingdom Brunel. The journal was created as a technical magazine for engineers. ''The Engineer'' began covering engineering including inventions and patents during a high point of British economic manufacturing power. In the 19th century it also published stock prices of raw materials. Together with the contemporary ''Engineering'' journal the work is considered a valuable historical resource for the study of British economic history. On 10 July 2012 the magazine announced its final print edition, the editor Jon Excell citing "increasing distribution and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steam Engine
A steam engine is a heat engine that performs mechanical work using steam as its working fluid. The steam engine uses the force produced by steam pressure to push a piston back and forth inside a cylinder. This pushing force can be transformed, by a connecting rod and crank, into rotational force for work. The term "steam engine" is generally applied only to reciprocating engines as just described, not to the steam turbine. Steam engines are external combustion engines, where the working fluid is separated from the combustion products. The ideal thermodynamic cycle used to analyze this process is called the Rankine cycle. In general usage, the term ''steam engine'' can refer to either complete steam plants (including boilers etc.), such as railway steam locomotives and portable engines, or may refer to the piston or turbine machinery alone, as in the beam engine and stationary steam engine. Although steam-driven devices were known as early as the aeolipile in the f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boiler
A boiler is a closed vessel in which fluid (generally water) is heated. The fluid does not necessarily boil. The heated or vaporized fluid exits the boiler for use in various processes or heating applications, including water heating, central heating, boiler-based power generation, cooking, and sanitation. Heat sources In a fossil fuel power plant using a steam cycle for power generation, the primary heat source will be combustion of coal, oil, or natural gas. In some cases byproduct fuel such as the carbon monoxide rich offgasses of a coke battery can be burned to heat a boiler; biofuels such as bagasse, where economically available, can also be used. In a nuclear power plant, boilers called steam generators are heated by the heat produced by nuclear fission. Where a large volume of hot gas is available from some process, a heat recovery steam generator or recovery boiler can use the heat to produce steam, with little or no extra fuel consumed; such a configuration is common ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
