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HMS K13
HMS ''K13'' was a steam-propelled First World War K class submarine of the Royal Navy. She sank in a fatal accident during sea trials in early 1917 and was salvaged and recommissioned as HMS ''K22''. Design and construction In early 1915, a requirement arose for a new type of fast submarines capable of operating with the Grand Fleet, which would operate ahead of the fleet in conjunction with the fleet's cruisers and attack an enemy force before the battleships would engage. The submarines would need a speed of at least 21 knots on the surface in the rough waters of the North Sea, with this being beyond the capability of conventional diesel-powered submarines. To meet this requirement, a 1913 design for a steam-powered submarine by the Admiralty's Director of Naval Construction was passed to Vickers for detailed design. The submarines were long overall and between perpendiculars, with a beam of and a surfaced draught of . Displacement was on the surface and submerged. Two ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fairfield Shipbuilders
The Fairfield Shipbuilding and Engineering Company, Limited was a Scottish shipbuilding company in the Govan area on the Clyde in Glasgow. Fairfields, as it is often known, was a major warship builder, turning out many vessels for the Royal Navy and other navies through the First World War and the Second World War. It also built many transatlantic liners, including record-breaking ships for the Cunard Line and Canadian Pacific, such as the Blue Riband-winning sisters RMS ''Campania'' and RMS ''Lucania''. At the other end of the scale, Fairfields built fast cross-channel mail steamers and ferries for locations around the world. These included ships for the Bosporus crossing in Istanbul and some of the early ships used by Thomas Cook for developing tourism on the River Nile. John Elder & Co and predecessors Millwright Randolph & Elliott Charles Randolph founded the company as Randolph & Co. He had been an apprentice at the Clyde shipyard of Robert Napier, and at William ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Director Of Naval Construction
The Director of Naval Construction (DNC) also known as the Department of the Director of Naval Construction and Directorate of Naval Construction and originally known as the Chief Constructor of the Navy was a senior principal civil officer responsible to the Board of Admiralty for the design and construction of the warships of the Royal Navy. From 1883 onwards he was also head of the Royal Corps of Naval Constructors, the naval architects who staffed his department from 1860 to 1966. The (D.N.C.'s) modern equivalent is Director Ships in the Defence Equipment and Support organisation of the Ministry of Defence. History The post evolved from the office of the ''Assistant Surveyor of the Navy'' (1832-1859) In 1860 the ''Assistant Surveyor'' was renamed ''Chief Constructor'' the post lasted until 1875 when it was renamed to the ''Director of Naval Construction''. The chief constructor was originally head of the Royal Corps of Naval Constructors and members of the corps were respons ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yard Number
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Govan
Govan ( ; Cumbric?: ''Gwovan'?''; Scots: ''Gouan''; Scottish Gaelic: ''Baile a' Ghobhainn'') is a district, parish, and former burgh now part of south-west City of Glasgow, Scotland. It is situated west of Glasgow city centre, on the south bank of the River Clyde, opposite the mouth of the River Kelvin and the district of Partick. Historically it was part of the County of Lanark. In the early medieval period, the site of the present Govan Old churchyard was established as a Christian centre for the Brittonic Kingdom of Alt Clut (Dumbarton Rock) and its successor realm, the Kingdom of Strathclyde. This latter kingdom, established in the aftermath of the Viking siege and capture of Alt Clut by Vikings from Dublin in AD 870, created the sandstone sculptures known today as the Govan Stones. Govan was the site of a ford and later a ferry which linked the area with Partick for seasonal cattle drovers. In the eighteenth and nineteenth centuries, textile mills and coal mining were ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fairfield Shipbuilding And Engineering Company
The Fairfield Shipbuilding and Engineering Company, Limited was a Scottish shipbuilding company in the Govan area on the Clyde in Glasgow. Fairfields, as it is often known, was a major warship builder, turning out many vessels for the Royal Navy and other navies through the First World War and the Second World War. It also built many transatlantic liners, including record-breaking ships for the Cunard Line and Canadian Pacific, such as the Blue Riband-winning sisters RMS ''Campania'' and RMS ''Lucania''. At the other end of the scale, Fairfields built fast cross-channel mail steamers and ferries for locations around the world. These included ships for the Bosporus crossing in Istanbul and some of the early ships used by Thomas Cook for developing tourism on the River Nile. John Elder & Co and predecessors Millwright Randolph & Elliott Charles Randolph founded the company as Randolph & Co. He had been an apprentice at the Clyde shipyard of Robert Napier, and at William ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Keel Laying
Laying the keel or laying down is the formal recognition of the start of a ship's construction. It is often marked with a ceremony attended by dignitaries from the shipbuilding company and the ultimate owners of the ship. Keel laying is one of the four specially celebrated events in the life of a ship; the others are launching, commissioning and decommissioning. In earlier times, the event recognized as the keel laying was the initial placement of the central timber making up the backbone of a vessel, called the keel. As steel ships replaced wooden ones, the central timber gave way to a central steel beam. Modern ships are most commonly built in a series of pre-fabricated, complete hull sections rather than around a single keel. The event recognized as the keel laying is the first joining of modular components, or the lowering of the first module into place in the building dock. It is now often called "keel authentication", and is the ceremonial beginning of the ship's life ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British 18-inch Torpedo
There have been a number of 18-inch torpedoes in service with the United Kingdom. These have been used on ships of the Royal Navy and aircraft of both the Fleet Air Arm and Royal Air Force, while Royal Navy surface ships and submarines use 21-inch torpedoes. The British "18-inch" torpedoes were in diameter, beginning with the "Fiume" Whitehead torpedo of 1890. 45 cm "Fiume" (Whitehead) torpedo First introduced into British service in 1894. * Year : about 1888 * Weight : * Length : * Warhead : wet gun-cotton * Performance : for * Propulsion : Compressed air Mark V Used on the River-class and 1905 Tribal-class destroyers. * Year : about 1899 * Weight : * Warhead : including pistol * Propulsion : Compressed air Mark VI Used on destroyers of the early 1900s. * Year : about 1904 * Performance : for or for * Propulsion : Compressed air Mark VII and VII* Introduced on the 1908 members of the 1905 Tribal class destroyers. Used by torpedo boats built before t ... [...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-fuels, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yarrow Boiler
Yarrow boilers are an important class of high-pressure water-tube boilers. They were developed by Yarrow & Co. (London), Shipbuilders and Engineers and were widely used on ships, particularly warships. The Yarrow boiler design is characteristic of the three-drum boiler: two banks of straight water-tubes are arranged in a triangular row with a single furnace between them. A single steam drum is mounted at the top between them, with smaller water drums at the base of each bank. Circulation, both upwards and downwards, occurs within this same tube bank. The Yarrow's distinctive features were the use of straight tubes and also circulation in both directions taking place within the tube bank, rather than using external downcomers. Early watertube boilers Early use of the water-tube boiler within the Royal Navy was controversial at times, giving rise to the '' ' Battle of the Boilers' '' around 1900. These first boilers, such as the Belleville and Niclausse, were large-tube desig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Displacement (ship)
The displacement or displacement tonnage of a ship is its weight. As the term indicates, it is measured indirectly, using Archimedes' principle, by first calculating the volume of water displaced by the ship, then converting that value into weight. Traditionally, various measurement rules have been in use, giving various measures in long tons. Today, tonnes are more commonly used. Ship displacement varies by a vessel's degree of load, from its empty weight as designed (known as "lightweight tonnage") to its maximum load. Numerous specific terms are used to describe varying levels of load and trim, detailed below. Ship displacement should not be confused with measurements of volume or capacity typically used for commercial vessels and measured by tonnage: net tonnage and gross tonnage. Calculation The process of determining a vessel's displacement begins with measuring its draft.George, 2005. p.5. This is accomplished by means of its "draft marks" (or "load lines"). A mer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Draft (ship)
The draft or draught of a ship's hull is the vertical distance between the waterline and the bottom of the hull (keel). The draught of the vessel is the maximum depth of any part of the vessel, including appendages such as rudders, propellers and drop keels if deployed. Draft determines the minimum depth of water a ship or boat can safely navigate. The related term air draft is the maximum height of any part of the vessel above the water. The more heavily a vessel is loaded, the deeper it sinks into the water, and the greater its draft. After construction, the shipyard creates a table showing how much water the vessel displaces based on its draft and the density of the water (salt or fresh). The draft can also be used to determine the weight of cargo on board by calculating the total displacement of water, accounting for the content of the ship's bunkers, and using Archimedes' principle. The closely related term "trim" is defined as the difference between the forward and aft ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beam (nautical)
The beam of a ship is its width at its widest point. The maximum beam (BMAX) is the distance between planes passing through the outer extremities of the ship, beam of the hull (BH) only includes permanently fixed parts of the hull, and beam at waterline (BWL) is the maximum width where the hull intersects the surface of the water. Generally speaking, the wider the beam of a ship (or boat), the more initial stability it has, at the expense of secondary stability in the event of a capsize, where more energy is required to right the vessel from its inverted position. A ship that heels on her ''beam ends'' has her deck beams nearly vertical. Typical values Typical length-to-beam ratios ( aspect ratios) for small sailboats are from 2:1 (dinghies to trailerable sailboats around ) to 5:1 (racing sailboats over ). Large ships have widely varying beam ratios, some as large as 20:1. Rowing shells designed for flatwater racing may have length to beam ratios as high as 30:1, while a cor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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