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Net-class Boom Defence Vessel
The Net class were a class of boom defence vessels of the Royal Navy and Royal Australian Navy during World War II. Ships Of the eleven ships of the class ten were built in shipyards in northern England and Scotland, while the eleventh was built in Sydney, Australia. One ship, HMS ''Bayonet'', was lost when it struck a mine in the Firth of Forth on 21 December 1939, probably laid by the on 4 November. Royal Navy * * * * * * * * * * *HMS Sonnet (Z47) Royal Australian Navy * See also * Bar class boom defence vessel The Bar class were a class of boom defence vessels of the Royal Navy, Royal Australian Navy and South African Navy during World War II. Ships Royal Navy * HMS ''Barbain'' (Z01) * HMS ''Barbarian'' (Z18) * HMS ''Barbastel'' (Z276) * HMS ''Barbe ... References External links {{WWII British ships World War II net laying ships Auxiliary gateship classes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blyth Shipbuilding Company
The Blyth Shipbuilding & Dry Docks Company Ltd. was a British shipyard located in Blyth, Northumberland, England. Company history Early history Shipbuilding began on the site on the south bank of the River Blyth in 1811. In the 1840s the yard was purchased by Beaumont and Drummond. In 1863 the yard was taken over by Hodgson and Soulsby who repaired and built small wooden sailing ships. In 1880 the first two iron ships were built at Blyth for the Russian Government. Foundation On 2 March 1883 the Blyth Shipbuilding & Dry Docks Company Ltd. was registered as a limited liability company. It built cargo liners, tramp steamers and colliers. The fifth ship built at the yard was for the shipping company Stephens and Mawson of Newcastle. Daniel Stephens eventually became a Director, and then the Chairman of the company. World War I In 1914 a cargo ship under construction was purchased by the Admiralty and converted into the Navy's first seaplane carrier . During the war the com ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vertical Triple Expansion
A compound steam engine unit is a type of steam engine where steam is expanded in two or more stages. A typical arrangement for a compound engine is that the steam is first expanded in a high-pressure ''(HP)'' cylinder, then having given up heat and losing pressure, it exhausts directly into one or more larger-volume low-pressure ''(LP)'' cylinders. Multiple-expansion engines employ additional cylinders, of progressively lower pressure, to extract further energy from the steam. Invented in 1781, this technique was first employed on a Cornish beam engine in 1804. Around 1850, compound engines were first introduced into Lancashire textile mills. Compound systems There are many compound systems and configurations, but there are two basic types, according to how HP and LP piston strokes are phased and hence whether the HP exhaust is able to pass directly from HP to LP ( Woolf compounds) or whether pressure fluctuation necessitates an intermediate "buffer" space in the form of a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bar Class Boom Defence Vessel
The Bar class were a class of boom defence vessels of the Royal Navy, Royal Australian Navy and South African Navy during World War II. Ships Royal Navy * HMS ''Barbain'' (Z01) * HMS ''Barbarian'' (Z18) * HMS ''Barbastel'' (Z276) * HMS ''Barberry'' (Z257) * HMS ''Barbette'' (1937) (Sold to the Turkish Navy 3 March 1941) * HMS ''Barbette'' (Z242) (Broken up October 1965 in Belgium) * HMS ''Barbican'' (Z43) * HMS ''Barbour'' (Z169) * HMS ''Barbourne'' (Z170) * HMS ''Barbrake'' (Z173) (transferred to the South African Naval Forces in 1943) * HMS ''Barbridge'' (Z222) * HMS ''Barbrook'' (Z03) * HMS ''Barcarole'' (Z287) * HMS ''Barcastle'' (Z09) * HMS ''Barcliff'' (Z70) * HMS ''Barclose'' (Z174) * HMS ''Barcock'' (Z177) * HMS ''Barcombe'' (Z16) * HMS ''Barcote'' (Z52) * HMS ''Barcroft'' (Z22) * HMS ''Bardell'' (Z195) * HMS ''Bardolf'' (Z171) * HMS ''Barfair'' (Z31) * HMS ''Barfield'' (Z42) * HMS ''Barfoam'' (Z182) * HMS ''Barfoil'' (Z194) * HMS ''Barfoot'' (Z202) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Firth Of Forth
The Firth of Forth () is the estuary, or firth, of several Scottish rivers including the River Forth. It meets the North Sea with Fife on the north coast and Lothian on the south. Name ''Firth'' is a cognate of ''fjord'', a Norse word meaning a narrow inlet. ''Forth'' stems from the name of the river; this is ''*Vo-rit-ia'' (slow running) in Proto-Celtic, yielding '' Foirthe'' in Old Gaelic and '' Gweryd'' in Welsh. It was known as ''Bodotria'' in Roman times. In the Norse sagas it was known as the ''Myrkvifiörd''. An early Welsh name is ''Merin Iodeo'', or the "Sea of Iudeu". Geography and economy Geologically, the Firth of Forth is a fjord, formed by the Forth Glacier in the last glacial period. The drainage basin for the Firth of Forth covers a wide geographic area including places as far from the shore as Ben Lomond, Cumbernauld, Harthill, Penicuik and the edges of Gleneagles Golf Course. Many towns line the shores, as well as the petrochemical complexes at Gr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II
World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing military alliances: the Allies and the Axis powers. World War II was a total war that directly involved more than 100 million personnel from more than 30 countries. The major participants in the war threw their entire economic, industrial, and scientific capabilities behind the war effort, blurring the distinction between civilian and military resources. Aircraft played a major role in the conflict, enabling the strategic bombing of population centres and deploying the only two nuclear weapons ever used in war. World War II was by far the deadliest conflict in human history; it resulted in 70 to 85 million fatalities, mostly among civilians. Tens of millions died due to genocides (including the Holocaust), starvation, ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Australian Navy
The Royal Australian Navy (RAN) is the principal naval force of the Australian Defence Force (ADF). The professional head of the RAN is Chief of Navy (CN) Vice Admiral Mark Hammond AM, RAN. CN is also jointly responsible to the Minister of Defence (MINDEF) and the Chief of Defence Force (CDF). The Department of Defence as part of the Australian Public Service administers the ADF. Formed in 1901, as the Commonwealth Naval Forces (CNF), through the amalgamation of the colonial navies of Australia following the federation of Australia. Although it was originally intended for local defence, it became increasingly responsible for regional defence as the British Empire started to diminish its influence in the South Pacific. The Royal Australian Navy was initially a green-water navy, and where the Royal Navy provided a blue-water force to the Australian Squadron, which the Australian and New Zealand governments helped to fund, and that was assigned to the Australia Station. Thi ... [...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] |
Boom Defence Vessel
A net laying ship, also known as a net layer, net tender, gate ship or boom defence vessel was a type of naval auxiliary ship. A net layer's primary function was to lay and maintain steel anti-torpedo or anti-submarine nets. Nets could be laid around an individual ship at anchor, or around harbors or other anchorages. Net laying was potentially dangerous work, and net laying seamen were experts at dealing with blocks, tackles, knots and splicing. As World War II progressed, net layers were pressed into a variety of additional roles including salvage, troop and cargo transport, buoy maintenance, and service as tugboats. US Navy 1930s War Plan Orange, the pre-WW2 US plan for war with Japan, anticipated that Pearl Harbor would be too small for the US Navy fleet that would be amassed in Hawaii. Orange anticipated the construction of a large anchorage in Lahaina Roads between the islands of Maui, Lānaʻi, and Molokaʻi. Construction would consist of massive nets and minefields ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Horsepower
Horsepower (hp) is a unit of measurement of power, or the rate at which work is done, usually in reference to the output of engines or motors. There are many different standards and types of horsepower. Two common definitions used today are the mechanical horsepower (or imperial horsepower), which is about 745.7 watts, and the metric horsepower, which is approximately 735.5 watts. The term was adopted in the late 18th century by Scottish engineer James Watt to compare the output of steam engines with the power of draft horses. It was later expanded to include the output power of other types of piston engines, as well as turbines, electric motors and other machinery. The definition of the unit varied among geographical regions. Most countries now use the SI unit watt for measurement of power. With the implementation of the EU Directive 80/181/EEC on 1 January 2010, the use of horsepower in the EU is permitted only as a supplementary unit. History The development of the stea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Length Between Perpendiculars
Length between perpendiculars (often abbreviated as p/p, p.p., pp, LPP, LBP or Length BPP) is the length of a ship along the summer load line from the forward surface of the stem, or main bow perpendicular member, to the after surface of the sternpost, or main stern perpendicular member. When there is no sternpost, the centerline axis of the rudder stock is used as the aft end of the length between perpendiculars. Measuring to the stern post or rudder stock was believed to give a reasonable idea of the ship's carrying capacity, as it excluded the small, often unusable volume contained in her overhanging ends. On some types of vessels this is, for all practical purposes, a waterline measurement. In a ship with raked stems, naturally that length changes as the draught of the ship changes, therefore it is measured from a defined loaded condition. See also * Length overall __NOTOC__ Length overall (LOA, o/a, o.a. or oa) is the maximum length of a vessel's hull measured para ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blyth, Northumberland
Blyth () is a town and civil parish in southeast Northumberland, England. It lies on the coast, to the south of the River Blyth and is approximately northeast of Newcastle upon Tyne. It has a population of about 37,000, as of 2011. The port of Blyth dates from the 12th century, but the development of the modern town only began in the first quarter of the 18th century. The main industries which helped the town prosper were coal mining and shipbuilding, with the salt trade, fishing and the railways also playing an important role. These industries have largely vanished, but the port still thrives, receiving paper and pulp from Scandinavia for the newspaper industries of England and Scotland. The town was seriously affected when its principal industries went into decline, and it has undergone much regeneration since the early 1990s. The Keel Row Shopping Centre, opened in 1991, brought major high street retailers to Blyth, and helped to revitalise the town centre. The market place ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Length Overall
__NOTOC__ Length overall (LOA, o/a, o.a. or oa) is the maximum length of a vessel's hull measured parallel to the waterline. This length is important while docking the ship. It is the most commonly used way of expressing the size of a ship, and is also used for calculating the cost of a marina berth (for example, £2.50 per metre LOA). LOA is usually measured on the hull alone. For sailing ships, this may ''exclude'' the bowsprit and other fittings added to the hull. This is how some racing boats and tall ships use the term LOA. However, other sources may include bowsprits in LOA. Confusingly, LOA has different meanings. "Sparred length", "Total length including bowsprit", "Mooring length" and "LOA including bowsprit" are other expressions that might indicate the full length of a sailing ship. LOD Often used to distinguish between the length of a vessel including projections (e.g. bow sprits, etc.) from the length of the hull itself, the Length on Deck or LOD is often repor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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