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Type System Of The Royal Navy
The Type system is a classification system used by the British Royal Navy to classify surface escorts by function. The system evolved in the early 1950s, when the Royal Navy was experimenting with building single-purpose escort vessels with specific roles in light of experience gained in World War II. The original (July 1950) numbering scheme was: Type 1X were Anti-Submarine (ASW) frigates (when the numbers ran out in the 1960s, ASW frigates continued as the Type 2X series). Type 3X were General-Purpose (GP) frigates (Chosen 2015) Type 4X were Anti-Aircraft (AAW) frigates (this later evolved into the "Destroyer" Type series). Type 6X were Aircraft-Direction (ADW) frigates. Type 8X were multi-role ships. An Admiralty Fleet Order defined these ships as "destroyers" if they could achieve "fleet speed" or as "sloops" if they could not. Types 11-30, anti-submarine frigates * Type 11 : Diesel powered anti-submarine frigate based on hull of Type 41 / 61. Not built. * Type 12 ''Whitby'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United Kingdom
The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and Northern Ireland. The United Kingdom includes the island of Great Britain, the north-eastern part of the island of Ireland, and many smaller islands within the British Isles. Northern Ireland shares a land border with the Republic of Ireland; otherwise, the United Kingdom is surrounded by the Atlantic Ocean, the North Sea, the English Channel, the Celtic Sea and the Irish Sea. The total area of the United Kingdom is , with an estimated 2020 population of more than 67 million people. The United Kingdom has evolved from a series of annexations, unions and separations of constituent countries over several hundred years. The Treaty of Union between the Kingdom of England (which included Wales, annexed in 1542) and the Kingdom of Scotland in 170 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
U And V-class Destroyer
The U and V class was a class of sixteen destroyers of the Royal Navy launched in 1942–1943. They were constructed in two flotillas, each with names beginning with "U-" or "V-" (although there was a return to the pre-war practice of naming the designated flotilla leader after a famous naval figure from history to honour the lost ships ''Grenville'' and ''Hardy''). The hull was nearly identical to the preceding ships of the S and T classes, but the U and V class ships had different bridge and armament fits. The flotillas constituted the 7th Emergency Flotilla and 8th Emergency Flotilla, built under the War Emergency Programme. These ships used the Fuze Keeping Clock HA Fire Control Computer. Notable actions Four ships, ''Verulam'', ''Venus'', ''Vigilant'' and ''Virago'', formed part of the 26th Destroyer Flotilla that ambushed and sank the , off Sumatra. U class * , flotilla leader, built by Swan Hunter, Tyneside, laid down 1 November 1941, launched 12 October 1942, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type 31 Frigate
The Type 31 frigate or Inspiration class, and formerly known as the Type 31e frigate or General Purpose Frigate (GPF), is a planned class of frigate intended to enter service with the United Kingdom's Royal Navy in the 2020s alongside the submarine-hunting Type 26 frigate. Designed by Babcock International, it is also marketed under the name Arrowhead 140 and is based on the hull of the frigate. It is intended that the Type 31 frigate will replace some of the general-purpose Type 23 frigates. The Type 31 is part of the British government's "National Shipbuilding Strategy". Development The 2010 Strategic Defence and Security Review (SDSR) authorised the Global Combat Ship (GCS) programme which would replace the Royal Navy's thirteen Type 23 frigates. Earlier that year, BAE Systems was awarded a four-year, £127 million contract by the Ministry of Defence to design the new class. It was planned that two variants of the class would be built: five general purpose frigates and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Future Surface Combatant (Royal Navy)
The Type 26 frigate or City-class frigate is a class of frigate being built for the United Kingdom's Royal Navy, with variants also being built for the Australian and Canadian navies. The programme, known as the Global Combat Ship, was launched by the UK Ministry of Defence to partially replace the navy's thirteen Type 23 frigates, and for export. Its primary role is to conduct advanced anti-submarine warfare missions while supporting air defence and general purpose operations. The type is the first naval platform shared between Australia, Canada and the United Kingdom since the Tribal-class destroyer. The programme began in 1998, under what was then known as the Future Surface Combatant (FSC). However, by March 2010, this procurement programme had evolved to become the Global Combat Ship, following the announcement of a four-year, £127 million design contract being awarded to BAE Systems Maritime – Naval Ships. The design passed Main Gate 1 in early 2015, with the Demonstra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type 26 Frigate
The Type 26 frigate or City-class frigate is a class of frigate being built for the United Kingdom's Royal Navy, with variants also being built for the Australian and Canadian navies. The programme, known as the Global Combat Ship, was launched by the UK Ministry of Defence to partially replace the navy's thirteen Type 23 frigates, and for export. Its primary role is to conduct advanced anti-submarine warfare missions while supporting air defence and general purpose operations. The type is the first naval platform shared between Australia, Canada and the United Kingdom since the Tribal-class destroyer. The programme began in 1998, under what was then known as the Future Surface Combatant (FSC). However, by March 2010, this procurement programme had evolved to become the Global Combat Ship, following the announcement of a four-year, £127 million design contract being awarded to BAE Systems Maritime – Naval Ships. The design passed Main Gate 1 in early 2015, with the Demonstra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type 23 Frigate
The Type 23 frigate or Duke class is a class of frigates built for the United Kingdom's Royal Navy. The ships are named after British Dukes, thus leading to the class being commonly known as the Duke class. The first Type 23, , was commissioned in 1989, and the sixteenth, was commissioned in June 2002. They form the core of the Royal Navy's destroyer and frigate fleet and serve alongside the Type 45 destroyers. They were designed for anti-submarine warfare, but have been used for a range of uses. Twelve Type 23 frigates remain in service with the Royal Navy, with three vessels having been sold to the Chilean Navy, and one being retired in 2021. The Royal Navy's Type 23 frigates will be replaced by the Type 26 Global Combat Ship and the Type 31 frigate. it is anticipated that HMS ''St Albans'' will be the last to retire from the Royal Navy, in 2035. Development When first conceived in the late 1970s, the Type 23 was intended to be a light anti-submarine frigate with a towed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type 22 Frigate
The Type 22 frigate also known as the ''Broadsword'' class was a class of frigates built for the British Royal Navy. Fourteen were built in total, with production divided into three batches. Initially intended to be anti-submarine warfare frigates as part of NATO contribution, the ships became general purpose warships. HMS ''Cornwall'' was the last Royal Navy Type 22 frigate, retired from service on 30 June 2011. Five Type 22s were scrapped and two more were sunk as targets. The seven other vessels were sold to the Brazilian, Romanian and Chilean navies; five of these remain in service, one was sunk as a target and one sold for scrap. Ship naming ''Broadsword'', ''Boxer'' It was originally envisaged that all Type 22s would have names beginning with 'B' (''Broadsword'', etc.), following the 'A' names used for Type 21 frigates (''Amazon'', etc.). This changed after the Falklands War when two replacement ships were ordered for the destroyers sunk ( ''Sheffield'' and ''Cove ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type 21 Frigate
The Type 21 frigate, or ''Amazon''-class frigate, was a British Royal Navy general-purpose escort that was designed in the late 1960s, built in the 1970s and served throughout the 1980s into the 1990s. Development In the mid-1960s, the Royal Navy (RN) had a requirement for a replacement for the diesel-powered (Type 41) anti-aircraft frigates and (Type 61) air direction frigates. While the Royal Navy's warships were traditionally designed by the Ministry of Defence's Ship Department based at Bath, private shipyards (in particular Vosper Thorneycroft) campaigned for the right to design and build a ship to meet this requirement. Vospers claimed that, by ignoring what they claimed to be the conservative design practices followed by the MoD team at Bath, they could deliver the new frigate at a significantly lower price (£3.5 million compared with the £5 million price of the contemporary ), while being attractive to export customers.Gardiner and Chumbley 1995, p. 522.Preston 20 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gas Turbine
A gas turbine, also called a combustion turbine, is a type of continuous flow internal combustion engine. The main parts common to all gas turbine engines form the power-producing part (known as the gas generator or core) and are, in the direction of flow: * a rotating gas compressor * a combustor * a compressor-driving turbine. Additional components have to be added to the gas generator to suit its application. Common to all is an air inlet but with different configurations to suit the requirements of marine use, land use or flight at speeds varying from stationary to supersonic. A propelling nozzle is added to produce thrust for flight. An extra turbine is added to drive a propeller (turboprop) or ducted fan (turbofan) to reduce fuel consumption (by increasing propulsive efficiency) at subsonic flight speeds. An extra turbine is also required to drive a helicopter rotor or land-vehicle transmission (turboshaft), marine propeller or electrical generator (power turbine). Greater ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Knot (unit)
The knot () is a unit of speed equal to one nautical mile per hour, exactly (approximately or ). The ISO standard symbol for the knot is kn. The same symbol is preferred by the Institute of Electrical and Electronics Engineers (IEEE), while kt is also common, especially in aviation, where it is the form recommended by the International Civil Aviation Organization (ICAO). The knot is a non- SI unit. The knot is used in meteorology, and in maritime and air navigation. A vessel travelling at 1 knot along a meridian travels approximately one minute of geographic latitude in one hour. Definitions ;1 international knot = :1 nautical mile per hour (by definition), : (exactly), : (approximately), : (approximately), : (approximately) : (approximately). The length of the internationally agreed nautical mile is . The US adopted the international definition in 1954, having previously used the US nautical mile (). The UK adopted the international nautical mile definition in 1970, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
J-, K- And N-class Destroyer
The J, K and N class consisted of 24 destroyers built for the Royal Navy beginning in 1938. They were a return to a smaller vessel, with a heavier torpedo armament, after the that emphasised guns over torpedoes. The ships were built in three flotillas or groups, each consisting of eight ships with names beginning with "J", "K" and "N". The flag superior of the pennant numbers changed from "F" to "G" in 1940. The ships were modified throughout their wartime service, particularly their anti-aircraft (AA) guns; they were also fitted with radar. Design history The design was intended as a smaller follow-on from the preceding Tribal class, and incorporated one radical new idea that was a departure from all previous Royal Navy destroyer designs. That was the adoption of a two boiler room layout. This reduced hull length and allowed for a single funnel, both reducing the profile and increasing the arcs of fire of the light anti-aircraft (AA) weapons. However, this also increased vu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corvette
A corvette is a small warship. It is traditionally the smallest class of vessel considered to be a proper (or " rated") warship. The warship class above the corvette is that of the frigate, while the class below was historically that of the sloop-of-war. The modern roles that a corvette fulfills include coastal patrol craft, missile boat and fast attack craft. These corvettes are typically between 500 tons and 2,000 .although recent designs may approach 3,000 tons, having size and capabilities that overlap with smaller frigates. However unlike contemporary frigates, a modern corvette does not have sufficient endurance and seaworthiness for long voyages. The word "corvette" is first found in Middle French, a diminutive of the Dutch word ''corf'', meaning a "basket", from the Latin ''corbis''. The rank "corvette captain", equivalent in many navies to "lieutenant commander", derives from the name of this type of ship. The rank is the most junior of three "captain" ranks in sev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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