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HMS Cachalot (S06)
HMS ''Cachalot'' (S06) was a ''Porpoise''-class submarine. Her keel was laid down on 1 August 1955 by Scotts Shipbuilding and Engineering Company at Greenock. She was launched on 11 December 1957, and commissioned on 1 September 1959. Design The ''Porpoise'' class was the first class of operational submarines built for the Royal Navy after the end of the Second World War, and were designed to take advantage of experience gained by studying German Type XXI U-boats and British wartime experiments with the submarine , which was modified by streamlining and fitting a bigger battery. The ''Porpoise''-class submarines were long overall and between perpendiculars, with a beam of and a draught of . Displacement was standard and full load surfaced and submerged. Propulsion machinery consisted of two Admiralty Standard Range diesel generators rated at a total of , which could charge the submarine's batteries or directly drive the electric motors. These were rated at , and dro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Naval Ensign Of The United Kingdom
The White Ensign, at one time called the St George's Ensign because of the simultaneous existence of a crossless version of the flag, is an ensign (flag), ensign worn on British Royal Navy ships and shore establishments. It consists of a red St George's Cross on a white field, identical to the flag of England except with the Union Flag in the upper canton. The White Ensign is also worn by yachts of members of the Royal Yacht Squadron and by ships of Trinity House escorting Monarchy of the United Kingdom, the reigning monarch. In addition to the United Kingdom, several other nations have variants of the White Ensign with their own national flags in the canton, with the St George's Cross sometimes being replaced by a naval badge omitting the cross altogether. Yachts of the Royal Irish Yacht Club wear a white ensign with an Irish tricolour in the first quadrant and defaced by the crowned harp from the Heraldic Badge of Ireland. The Flag of the British Antarctic Territory and the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Draft (ship)
The draft or draught of a ship is a determined depth of the vessel below the waterline, measured vertically to its hull's lowest—its propellers, or keel, or other reference point. Draft varies according to the loaded condition of the ship. A deeper draft means the ship will have greater vertical depth below the waterline. Draft is used in under keel clearance calculations, where the draft is calculated with the available depth of water (from Electronic navigational charts) to ensure the ship can navigate safely, without grounding. Navigators can determine their draught by calculation or by visual observation (of the ship's painted load lines). Related terminology A ship's draft/draught is the "depth of the vessel below the waterline measured vertically to the lowest part of the hull, propellers, or other reference point". That is, the draft or draught is the maximum depth of any part of the vessel, including appendages such as rudders, propellers and drop keels if depl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Porpoise-class Submarines
British may refer to: Peoples, culture, and language * British people, nationals or natives of the United Kingdom, British Overseas Territories and Crown Dependencies. * British national identity, the characteristics of British people and culture * British English, the English language as spoken and written in United Kingdom of Great Britain and Northern Ireland and, more broadly, throughout the British Isles * Celtic Britons, an ancient ethno-linguistic group * Brittonic languages, a branch of the Insular Celtic language family (formerly called British) ** Common Brittonic, an ancient language Other uses *People or things associated with: ** Great Britain, an island ** British Isles, an island group ** United Kingdom, a sovereign state ** British Empire, a historical global colonial empire ** Kingdom of Great Britain (1707–1800) ** United Kingdom of Great Britain and Ireland (1801–1922) * British Raj, colonial India under the British Empire * British Hong Kong, colonial Ho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blyth, Northumberland
Blyth () is a port town, port and seaside town as well as a civil parish in southeast Northumberland, England. It lies on the coast, to the south of the River Blyth, Northumberland, River Blyth. It has a population of 39,731 as of the 2021 census, up 6% from the 2011 census and population of 37,347. 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 when it closed in 2024, brought majo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spithead
Spithead is an eastern area of the Solent and a roadstead for vessels off Gilkicker Point in Hampshire, England. It is protected from all winds except those from the southeast, with the Isle of Wight lying to the south-west. Spithead and the channel to the north is the main approach for shipping to Portsmouth Harbour and onwards to Southampton. Spithead itself is an important naval Anchorage (maritime), anchorage. Historically, Spithead was used for assembling Royal Navy ships, including as a formation area for squadrons or fleets at anchor, as well as for the resupply of ships. Geography It receives its name from the Spit (landform), Spit, a Shoal, sandbank stretching south from the Hampshire shore for . Spithead is long by about in average breadth. Horse and Dean Sand lie to the NE side and Ryde Sand and No Man's Land to the South side. As of 2004, the main channel was reported as being maintained at a dredged depth of 9.5m. History There are evidence of submerged prehis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HMS Cachalot Crest
HMS or hms may refer to: Education * Habib Medical School, of the Islamic University in Uganda * Hartley–Melvin–Sanborn Community School District of Iowa, United States * Harvard Medical School of Harvard University * Heidelberg Middle School, a former American school in Heidelberg, Germany * Hongwanji Mission School, in Hawaii, United States * Horley Methodist School, Teluk Intan, in Malaysia Medicine and science * Hartford Medical Society, an American professional association based in Hartford, Connecticut *Health management system * Hexose monophosphate shunt, an alternative name for the pentose phosphate pathway * Highly migratory species, a classification of fish * Hypermobility spectrum disorder, formerly hypermobility syndrome or HMS * HMS, a brand name of medrysone Technology *Huawei Mobile Services, proprietary apps and services from Huawei bundled with Android devices * HMS Networks, a company in the field of industrial communications * Heavy melting steel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British 21 Inch Torpedo
There have been a number of 21-inch (53.3cm) torpedoes in service with the Royal Navy of the United Kingdom. Torpedoes of 21-inch calibre were the largest torpedoes in common use in the RN. They were used by surface ships and submarines; aircraft used smaller British 18-inch torpedo, 18-inch torpedoes. Mark I The first British 21-inch torpedo came in two lengths, "Short" at , and "Long" at . The explosive charge was of guncotton, increased later to . The torpedoes were first deployed in the field in 1912 and primarily used by the s throughout most of their service during the First World War. Specifications: Mark I Short * Entered service: 1910 * Weight: * Length: * Explosive charge: Guncotton, Wet guncotton * Range and speed: at , at Mark I Long * Entered service: 1910 * Weight: * Length: * Explosive charge: Guncotton, Wet guncotton * Range and speed: at , at Mark II The Mark II, a prolific series of torpedoes used during the First World War, entered service ... [...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". A merchant vessel has t ... [...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 sides 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 cora ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scotts Shipbuilding And Engineering Company
Scotts Shipbuilding and Engineering Company Limited, often referred to simply as Scotts, was a Scottish shipbuilding company based in Greenock on the River Clyde. In its time in Greenock, Scotts built over 1,250 ships. History John Scott founded the company in 1711. He built herring busses and small craft. He was succeeded by his son William Scott (1722–1769) and another son. In 1765 they built their first square-rigged vessel. William's son John (1752–1837) expanded the shipyard to a major shipbuilding company. The Scott family took over the Greenock Foundry in 1790. In 1791, Scott & Co. built , of 624-ton (bm), for the Newfoundland trade. She and , built in 1794, were the largest ships built in Scotland in their years. They marked the beginning of increased activity by Scott & Co., particularly with respect to large, ocean-going ships. C. G. Scott started building at Cartsdyke Dockyard in 1850, as Scott & Company. John Scott (II) and Robert Scott bought the adjacen ... [...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 its 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 Length overall (LOA, o/a, o.a. or oa) is the maximum length of a vessel's hull measured parallel to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
