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HMS Virtue
The British V-class submarine (officially "U-Class Long hull 1941–42 programme") was a class of submarines built for the Royal Navy during the Second World War. History Forty-two vessels were ordered to this design, all to be built by Vickers-Armstrong at either Barrow-in-Furness or at Walker-on-Tyne, but only 22 were completed. Note that seven of these vessels received 'U' names (conversely, four of the U class had received names beginning with 'V'). The V-class submarines were very similar to the preceding U-class (short-hull) boats, of which they constituted a linear development, but had pressure hull plating instead of for deeper diving, also a lengthened stern The stern is the back or aft-most part of a ship or boat, technically defined as the area built up over the sternpost, extending upwards from the counter rail to the taffrail. The stern lies opposite the bow, the foremost part of a ship. O ... and fining at the bow to reduce noise and improve underw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vickers-Armstrong
Vickers-Armstrongs Limited was a British engineering conglomerate formed by the merger of the assets of Vickers Limited and Sir W G Armstrong Whitworth & Company in 1927. The majority of the company was nationalised in the 1960s and 1970s, with the remainder being divested as Vickers plc in 1977. It featured among Britain's most prominent armaments firms. History Vickers merged with the Tyneside-based engineering company Armstrong Whitworth, founded by William Armstrong, to become Vickers-Armstrongs. Armstrong Whitworth and Vickers had developed along similar lines, expanding into various military sectors and produced a whole suite of military products. Armstrong Whitworth were notable for their artillery manufacture at Elswick and shipbuilding at a yard at High Walker on the River Tyne. 1929 saw the merger of the acquired railway business with those of Cammell Laird to form Metropolitan Cammell Carriage and Wagon (MCCW); Metro Cammell. In 1935, before rearmament bega ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Submarine
A submarine (often shortened to sub) is a watercraft capable of independent operation underwater. (It differs from a submersible, which has more limited underwater capability.) The term "submarine" is also sometimes used historically or informally to refer to remotely operated vehicles and Autonomous underwater vehicle, robots, or to medium-sized or smaller vessels (such as the midget submarine and the wet sub). Submarines are referred to as ''boats'' rather than ''ships'' regardless of their size. Although experimental submarines had been built earlier, submarine design took off during the 19th century, and submarines were adopted by several navies. They were first used widely during World War I (1914–1918), and are now used in many navy, navies, large and small. Their military uses include: attacking enemy surface ships (merchant and military) or other submarines; aircraft carrier protection; Blockade runner, blockade running; Ballistic missile submarine, nuclear deterrenc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bow (ship)
The bow () is the forward part of the hull of a ship or boat, the point that is usually most forward when the vessel is underway. The aft end of the boat is the stern. Prow may be used as a synonym for bow or it may mean the forward-most part of the bow above the waterline. Function A ship's bow should be designed to enable the hull to pass efficiently through the water. Bow shapes vary according to the speed of the boat, the seas or waterways being navigated, and the vessel's function. Where sea conditions are likely to promote pitching, it is useful if the bow provides reserve buoyancy; a flared bow (a raked stem with flared topsides) is ideal to reduce the amount of water shipped over the bow. Ideally, the bow should reduce the resistance and should be tall enough to prevent water from regularly washing over the top of it. Large commercial barges on inland waterways rarely meet big waves and may have remarkably little freeboard at the bow, whereas fast military ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stern
The stern is the back or aft-most part of a ship or boat, technically defined as the area built up over the sternpost, extending upwards from the counter rail to the taffrail. The stern lies opposite the bow, the foremost part of a ship. Originally, the term only referred to the aft port section of the ship, but eventually came to refer to the entire back of a vessel. The stern end of a ship is indicated with a white navigation light at night. Sterns on European and American wooden sailing ships began with two principal forms: the ''square'' or ''transom'' stern and the ''elliptical'', ''fantail'', or ''merchant'' stern, and were developed in that order. The hull sections of a sailing ship located before the stern were composed of a series of U-shaped rib-like frames set in a sloped or "cant" arrangement, with the last frame before the stern being called the ''fashion timber(s)'' or ''fashion piece(s)'', so called for "fashioning" the after part of the ship. This frame i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pressure Hull
A submarine hull has two major components, the ''superstructure'' and the ''pressure hull''. The external portion of a submarine’s hull—that part that does not resist sea pressure and is free-flooding—is known as the “superstructure” in American submarine terminology and the “casing” in British submarine terminology. It is sometimes also referred to as the “light hull” or other descriptive terms. The superstructure (''casing'' in British usage) of a submarine is the outer non-watertight, “free-flooding” hull which provides a hydrodynamically efficient shape. The pressure hull is the inner hull of a submarine that resists sea pressure and maintains the submarine’s structural integrity at (operating) depth. Shapes Modern submarines are usually cigar-shaped. This design, already visible on very early submarines, is called a " teardrop hull". It is structurally efficient for withstanding external pressure, and significantly reduces the hydrodynamic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Walker-on-Tyne
Walker is a residential suburb and electoral ward in the south-east of Newcastle upon Tyne, in the county of Tyne and Wear, England. History The place-name 'Walker' is first attested in 1242, where it appears as ''Waucre''. This means 'wall-carr', that is to say, 'the marsh by the Roman wall', a reference to Hadrian's Wall. Today, a small fragment of the wall can be found in neighbouring Byker to the west, and Segedunum, a major site at the end of the Wall can be found in Wallsend to the east. Large-scale coal-mining began in the area in the early 1700s, with up to ten collieries in operation in the Walker area. A wagon-way was constructed during this period to facilitate transportation of coal to the riverside staithes. Walker used to have a large shipbuilding industry, particularly the yard of Armstrong Whitworth at High Walker, but this has declined over the past 50 years and the area has suffered as a result, with many jobs being taken away from the community. From 1809 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barrow-in-Furness
Barrow-in-Furness is a port town and civil parish (as just "Barrow") in the Westmorland and Furness district of Cumbria, England. Historic counties of England, Historically in the county of Lancashire, it was incorporated as a municipal borough in 1867 and merged with Dalton-in-Furness Urban District in 1974 to form the Borough of Barrow-in-Furness. The borough subsequently merged with adjoining boroughs in 2023 to form the Westmorland and Furness unitary authority. At the tip of the Furness, Furness peninsula, close to the Lake District, it is bordered by Morecambe Bay, the Duddon Estuary and the Irish Sea. In 2021, Barrow's population was 55,489, making it the second largest urban area in Cumbria after Carlisle, Cumbria, Carlisle, and the largest in the Westmorland and Furness unitary authority. Natives of Barrow, as well as the local dialect, are known as Barrovian. In the Middle Ages, Barrow was a small hamlet (place), hamlet within the parish of Dalton-in-Furness with Fu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Navy During The Second World War
The Royal Navy was an important component of the Allied forces during the Second World War and made a significant contribution to the victory over the Axis powers. Its main tasks included the protection of merchant ships in the Atlantic against German U-boats and the defence of British territories. Its greatest successes included the victory over the Italians in the Battle of Cape Matapan, the Battle of the North Cape, naval battle off the North Cape and Dunkirk evacuation, the evacuation of the British Expeditionary Force (World War II), British Expeditionary Force from Dunkirk. Background At the beginning of the Second World War, the Royal Navy was the strongest navy in the world. It had 20 battleships and battlecruisers ready for service or under construction, twelve aircraft carriers, over 90 Light cruiser, light and heavy cruisers, 70 submarines, over 100 destroyers as well as numerous Ocean escort, escort ships, minelayers, minesweepers and 232 Military aircraft, aircraft ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ship Class
A ship class is a group of ships of a similar design. This is distinct from a ship type, which might reflect a similarity of tonnage or intended use. For example, is a nuclear aircraft carrier (ship type) of the (ship class). In the course of building a class of ships, design changes might be implemented. In such a case, the ships of different design might not be considered of the same class; each variation would either be its own class, or a subclass of the original class (see for an example). If ships are built of a class whose production had been discontinued, a similar distinction might be made. Ships in a class often have names linked by a common factor: e.g. s' names all begin with T (, , ); and s are named after American battles (, , , ). Ships of the same class may be referred to as sister ships. Naval ship class naming conventions Overview The name of a naval ship class is most commonly the name of the lead ship: the first ship commissioned or built of its design. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hellenic Naval Ensign 1935
Hellenic is a synonym for Greek. It means either: *of or pertaining to the Hellenic Republic (modern Greece) or Greek people (Hellenes, ) and culture *of or pertaining to ancient Greece, ancient Greek people, culture and civilization. It may also refer to: * Hellenic Academy, an independent high school in Harare, Zimbabwe * Hellenic Airlines * Hellenic College, a liberal arts college in Brookline, Massachusetts * Hellenic College of London * Hellenic Conservatory * Hellenic FC, a football club in South Africa * Hellenic Football League, an association football league in England * Hellenic languages, a branch of the Indo-European languages * Hellenic Parliament * Hellenic Petroleum (company) * Hellenic Post * Hellenic Republic Asset Development Fund * Hellenic studies * Tampa Bay Hellenic, a women's soccer team in the United States * Hellenic (horse) (1987–2011), a thoroughbred racehorse * ' See also * Greek (other) * Helladic period, the Bronze Age in mainland Greece * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
QF 3-inch 20 Cwt
The QF 3-inch 20 cwt anti-aircraft gun became the standard anti-aircraft gun used in the home defence of the United Kingdom against German Zeppelins airships and bombers and on the Western Front in World War I. It was also common on British warships in World War I and submarines in World War II. 20 cwt referred to the weight of the barrel and breech, to differentiate it from other 3-inch guns (1cwt = 1 hundredweight = , hence the barrel and breech together weighed ). While other AA guns also had a bore of , the term ''3-inch'' was only ever used to identify this gun in the World War I era, and hence this is what writers are usually referring to by ''3-inch AA gun''. Design and development The gun was based on a prewar Vickers naval QF gun with modifications specified by the War Office in 1914. These (Mk I) included the introduction of a vertical sliding breech-block to allow semi-automatic operation. When the gun recoiled and ran forward after firing, the motion also opened the ... [...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 Torpedo#Classes and diameters, torpedoes of other classes and diameters have been used. 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 the submarine into the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
