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HMS Jason (J99)
HMS ''Jason'' was a . She was named after the hero in Greek mythology and was the sixteenth Royal Navy ship to carry the name ''Jason''. She was laid down on 12 December 1936, launched on 6 October 1937, and was completed on 9 June 1938. She survived the Second World War and was sold in 1946 to become a cargo ship. She was eventually broken up in 1950. Her pennant number was originally N99, but was changed to J99 in May 1940. Design The ''Halcyon'' class were a class of dedicated minesweepers, designed to be smaller and cheaper than the dual-purpose (minesweeping and colonial patrol vessel) minesweeping sloops that had been built since the late 1920s (i.e. the , and ), which as their design evolved, were becoming increasingly focused on escort duties and becoming too large for use as minesweepers. ''Jason'' was long overall and between perpendiculars, with a beam of and a draught of at deep load. Displacement was standard and deep load. Two Admiralty 3-drum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Troon
Troon is a town in South Ayrshire, situated on the west coast of Ayrshire in Scotland, about north of Ayr and northwest of Glasgow Prestwick Airport. Troon has a port with freight services and a yacht marina. Up until January 2016, P&O operated a seasonal ferry service to Larne. In May 2006, a ferry service to Campbeltown was added, although this was withdrawn the following year. In the 2001 census the population of Troon, not including the nearby village of Loans but including the Barassie area, was estimated at 14,766, a 4.77% increase on the 1991 estimate of 14,094. Name The name ''Troon'' is likely from a Brythonic or Pictish name cognate with Welsh ("nose, cape"). When Scottish Gaelic became the main language, it is possible that the Gaelic form (; "the nose") was used for the name Troon. Since the words ''sròn'' and ''trwyn'' are cognate, it could have been easily adapted from one language to the other. This is similar to the Gaelic name of Stranraer (''An t-Sròn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steam Turbine
A steam turbine is a machine that extracts thermal energy from pressurized steam and uses it to do mechanical work on a rotating output shaft. Its modern manifestation was invented by Charles Parsons in 1884. Fabrication of a modern steam turbine involves advanced metalwork to form high-grade steel alloys into precision parts using technologies that first became available in the 20th century; continued advances in durability and efficiency of steam turbines remains central to the energy economics of the 21st century. The steam turbine is a form of heat engine that derives much of its improvement in thermodynamic efficiency from the use of multiple stages in the expansion of the steam, which results in a closer approach to the ideal reversible expansion process. Because the turbine generates rotary motion, it can be coupled to a generator to harness its motion into electricity. Such turbogenerators are the core of thermal power stations which can be fueled by fossil- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leith
Leith (; gd, Lìte) is a port area in the north of the city of Edinburgh, Scotland, founded at the mouth of the Water of Leith. In 2021, it was ranked by ''Time Out'' as one of the top five neighbourhoods to live in the world. The earliest surviving historical references are in the royal charter authorising the construction of Holyrood Abbey in 1128 in which it is termed ''Inverlet'' (Inverleith). After centuries of control by Edinburgh, Leith was made a separate burgh in 1833 only to be merged into Edinburgh in 1920. Leith is located on the southern coast of the Firth of Forth and lies within the City of Edinburgh Council area; since 2007 it has formed one of 17 multi-member wards of the city. History As the major port serving Edinburgh, Leith has seen many significant events in Scottish history. First settlement The earliest evidence of settlement in Leith comes from several archaeological digs undertaken in The Shore area in the late 20th century. Amongst the f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rockall
Rockall () is an uninhabitable granite islet situated in the North Atlantic Ocean. The United Kingdom claims that Rockall lies within its exclusive economic zone (EEZ) and is part of its territory, but this claim is not recognised by Ireland. It and the nearby skerries of Hasselwood Rock and Helen's Reef are the only emergent parts of the Rockall Plateau. The rock was formed by magmatism as part of the North Atlantic Igneous Province during the Paleogene. Rockall's approximate distances from the closest islands in each direction are as follows: It is west of Soay, Scotland; northwest of Tory Island, Ireland; and south of Iceland. The nearest permanently inhabited place is North Uist, an island in the Outer Hebrides of Scotland, to the east. The United Kingdom claimed Rockall in 1955 and incorporated it as a part of Scotland in 1972. The UK does not make a claim to extended EEZ based on Rockall, as it has ratified the United Nations Convention on the Law of the Sea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Convoy HX 79
HX 79 was an Allied North Atlantic convoy of the HX series which ran during the Battle of the Atlantic in World War II. It suffered major losses from a U-boat attack, and, with the attack on convoy SC 7 the previous day, represents the worst two days shipping losses in the entire Atlantic campaign. Prelude HX 79 was an east-bound convoy of 50 ships which sailed from Halifax on 8 October 1940 making for Liverpool. On 19 October, 4 days from landfall, HX 79 was entering the Western Approaches, and had caught up with the position of SC 7, which was under attack. The escort for the crossing had been meagre, being provided by two armed merchant cruisers against the possibility of attack by a surface raider, but these had departed when HX 79 was sighted by , commanded by ''Kapitänleutnant'' Günther Prien. At this point HX 79 was unescorted; Prien sent a sighting report and set to shadowing the convoy, while '' Konteradmiral'' Karl Dönitz ordered the pack to assemble. Those ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
River Clyde
The River Clyde ( gd, Abhainn Chluaidh, , sco, Clyde Watter, or ) is a river that flows into the Firth of Clyde in Scotland. It is the ninth-longest river in the United Kingdom, and the third-longest in Scotland. It runs through the major city of Glasgow. Historically, it was important to the British Empire because of its role in shipbuilding and trade. To the Romans, it was , and in the early medieval Cumbric language, it was known as or . It was central to the Kingdom of Strathclyde (). Etymology The exact etymology of the river's name is unclear, though it is known that the name is ancient: It was called or by the Britons and by the Romans. It is therefore likely that the name comes from a Celtic language—most likely Old British. But there is more than one old Celtic word that the river's name could plausibly derive from. One possible root is the Common Brittonic , meaning 'loud' or 'loudly'. More likely, the river was named after a local Celtic goddess, '' Clōta ... [...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 Part ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rosyth Dockyard
Rosyth Dockyard is a large naval dockyard on the Firth of Forth at Rosyth, Fife, Scotland, owned by Babcock Marine, which formerly undertook refitting of Royal Navy surface vessels and submarines. Before its privatisation in the 1990s it was formerly the Royal Naval Dockyard Rosyth. Its primary role now is the dismantling of decommissioned nuclear submarines. It is also the integration site for the Royal Navy's newest aircraft carriers, the as well as the Type 31 Frigate. History Construction of the dockyard by civil engineers Easton, Gibb & Son commenced in 1909. At the time, the Royal Navy was strengthening its presence along the eastern seaboard of Great Britain due to a naval arms race with Germany. First World War * In 1903 approval was given with an estimated cost of £3 million for "works" and £250,000 for machinery spread over 10 years. The site consisted of of land, of foreshore, and the main basin would be . This was intended to be large enough for 11 battle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
U-boat
U-boats were naval submarines operated by Germany, particularly in the First and Second World Wars. Although at times they were efficient fleet weapons against enemy naval warships, they were most effectively used in an economic warfare role (commerce raiding) and enforcing a naval blockade against enemy shipping. The primary targets of the U-boat campaigns in both wars were the merchant convoys bringing supplies from Canada and other parts of the British Empire, and from the United States, to the United Kingdom and (during the Second World War) to the Soviet Union and the Allied territories in the Mediterranean. German submarines also destroyed Brazilian merchant ships during World War II, causing Brazil to declare war on both Germany and Italy on 22 August 1942. The term is an anglicised version of the German word ''U-Boot'' , a shortening of ''Unterseeboot'' ('under-sea-boat'), though the German term refers to any submarine. Austro-Hungarian Navy submarines were also ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Belfast
Belfast ( , ; from ga, Béal Feirste , meaning 'mouth of the sand-bank ford') is the capital and largest city of Northern Ireland, standing on the banks of the River Lagan on the east coast. It is the 12th-largest city in the United Kingdom and the second-largest in Ireland. It had a population of 345,418 . By the early 19th century, Belfast was a major port. It played an important role in the Industrial Revolution in Ireland, briefly becoming the biggest linen-producer in the world, earning it the nickname " Linenopolis". By the time it was granted city status in 1888, it was a major centre of Irish linen production, tobacco-processing and rope-making. Shipbuilding was also a key industry; the Harland and Wolff shipyard, which built the , was the world's largest shipyard. Industrialisation, and the resulting inward migration, made Belfast one of Ireland's biggest cities. Following the partition of Ireland in 1921, Belfast became the seat of government for Northern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minesweeper (ship)
A minesweeper is a small warship designed to remove or detonate naval mines. Using various mechanisms intended to counter the threat posed by naval mines, minesweepers keep waterways clear for safe shipping. History The earliest known usage of the naval mine dates to the Ming dynasty.Needham, Volume 5, Part 7, 203–205. Dedicated minesweepers, however, only appeared many centuries later during the Crimean War, where they were deployed by the British. The Crimean War minesweepers were rowboats trailing grapnels to snag mines. Minesweeping technology picked up in the Russo-Japanese War, using aging torpedo boats as minesweepers. In Britain, naval leaders recognized before the outbreak of World War I that the development of sea mines was a threat to the nation's shipping and began efforts to counter the threat. Sir Arthur Wilson noted the real threat of the time was blockade aided by mines and not invasion. The function of the fishing fleet's trawlers with their trawl gear was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bristol Channel
The Bristol Channel ( cy, Môr Hafren, literal translation: "Severn Sea") is a major inlet in the island of Great Britain, separating South Wales from Devon and Somerset in South West England. It extends from the lower estuary of the River Severn ( cy, Afon Hafren) to the North Atlantic Ocean. It takes its name from the English city of Bristol, and is over 30 miles (50 km) wide at its western limit. Long stretches of both sides of the coastline are designated as Heritage Coast. These include Exmoor, Bideford Bay, the Hartland Point peninsula, Lundy Island, Glamorgan, Gower Peninsula, Carmarthenshire, South Pembrokeshire and Caldey Island. Until Tudor times the Bristol Channel was known as the Severn Sea, and it is still known as this in both cy, Môr Hafren and kw, Mor Havren. Geography The International Hydrographic Organization now defines the western limit of the Bristol Channel as "a line joining Hartland Point in Devon () to St. Govan's Head in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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