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Type 89 Torpedo
The Type 89 torpedo (development name G-RX2) is a Japanese submarine-launched homing torpedo produced by Mitsubishi Heavy Industries. It replaced the unguided Type 72 torpedo. Development was done by the Technical Research and Development Institute, a department of the Ministry of Defense {{unsourced, date=February 2021 A ministry of defence or defense (see spelling differences), also known as a department of defence or defense, is an often-used name for the part of a government responsible for matters of defence, found in state ..., and began in 1970, with the design completed by 1984. Developed from the Type 80 torpedo, it is similar in its capabilities to the United States Mark 48 ADCAP torpedo. After being formally approved in 1989 and named "Type 89", it entered service and is currently carried aboard the '' Oyashio'', and '' Sōryū'' class submarines. It was also carried by the '' Yuushio'' and '' Harushio'' class submarine before they were retired from active serv ...
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Mitsubishi Heavy Industries
is a Japanese multinational engineering, electrical equipment and electronics corporation headquartered in Tokyo, Japan. MHI is one of the core companies of the Mitsubishi Group and its automobile division is the predecessor of Mitsubishi Motors. MHI's products include aerospace and automotive components, air conditioners, elevators, forklift trucks, hydraulic equipment, printing machines, missiles, tanks, power systems, ships, aircraft, railway systems, and space launch vehicles. Through its defense-related activities, it is the world's 23rd-largest defense contractor measured by 2011 defense revenues and the largest based in Japan. History In 1857, at the request of the Tokugawa Shogunate, a group of Dutch engineers were invited, including Dutch naval engineer Hendrik Hardes, and began work on the ''Nagasaki Yotetsusho'' 長崎鎔鉄所 , a modern, Western-style foundry and shipyard near the Dutch settlement of Dejima, at Nagasaki. This was renamed ''Nag ...
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Sōryū Class Submarine
Soryu may refer to: * Japanese aircraft carrier ''Sōryū'', an Imperial Japanese Navy aircraft carrier scuttled during the Battle of Midway on 4 June 1942 * ''Sōryū''-class submarine, a ship class of Japanese submarines * JS ''Sōryū'' (SS-501), the lead submarine of the ''Sōryū'' class of submarines in the Japan Maritime Self-Defense Force * Asuka Langley Soryu is a fictional character from the ''Neon Genesis Evangelion'' franchise created by Gainax. She first appears in the original anime series, and also appears in the franchise's animated feature films and related media, including video games, t ...
, character from the ''Neon Genesis Evangelion'' franchise {{disambiguation, ship ...
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Torpedoes Of Japan
A modern torpedo is an underwater ranged weapon launched above or below the water surface, self-propelled towards a target, and with an explosive warhead designed to detonate either on contact with or in proximity to the target. Historically, such a device was called an automotive, automobile, locomotive, or fish torpedo; colloquially a ''fish''. The term ''torpedo'' originally applied to a variety of devices, most of which would today be called mines. From about 1900, ''torpedo'' has been used strictly to designate a self-propelled underwater explosive device. While the 19th-century battleship had evolved primarily with a view to engagements between armored warships with large-caliber guns, the invention and refinement of torpedoes from the 1860s onwards allowed small torpedo boats and other lighter surface vessels, submarines/submersibles, even improvised fishing boats or frogmen, and later light aircraft, to destroy large ships without the need of large guns, though some ...
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Taigei-class Submarine
The ''Taigei''-class submarines (''29SS'') is a new class of attack submarines after 2022, developed for the Japan Maritime Self-Defense Force. It is the successor to the . The ''Taigei'' class is equipped with a large amount of lithium-ion batteries, as is the case with the eleventh and twelfth submarines of the ''Sōryū'' class ( and ), making it possible for the submersible to travel longer and at higher speeds under water than conventional diesel-electric submarines. Development The development of the ''Taigei'' class was conducted from a variety of researches aimed at developing new and improved submarine components to improve the capabilities of "next-generation submarines" that will operate in the 2020s and beyond. Early studies (2004) In 2004, an evaluation was made on researching next-generation submarine systems based on capability requirements: dive speed, stealth, etc. The research involved utilizing simulation technologies to optimize the most efficient design ...
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Type 18 Torpedo
Type may refer to: Science and technology Computing * Typing, producing text via a keyboard, typewriter, etc. * Data type, collection of values used for computations. * File type * TYPE (DOS command), a command to display contents of a file. * Type (Unix), a command in POSIX shells that gives information about commands. * Type safety, the extent to which a programming language discourages or prevents type errors. * Type system, defines a programming language's response to data types. Mathematics * Type (model theory) * Type theory, basis for the study of type systems * Arity or type, the number of operands a function takes * Type, any proposition or set in the intuitionistic type theory * Type, of an entire function ** Exponential type Biology * Type (biology), which fixes a scientific name to a taxon * Dog type, categorization by use or function of domestic dogs Lettering * Type is a design concept for lettering used in typography which helped bring about modern tex ...
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Harushio Class Submarine
The ''Harushio'' class is a diesel-electric submarine class operated by the Japanese Maritime Self-Defense Force (JMSDF). The design is an evolution from the being slightly larger and with better noise reduction. ''Asashio'', has been modified to test air-independent propulsion (AIP), and the remaining vessels were decommissioned and replaced by the ''Oyashio''-class. ''Natsushio'', ''Hayashio'', ''Arashio'' and ''Asashio'' are all named after World War II destroyers. Vessels See also * Hai Lung-class submarine * Walrus-class submarine * Dolphin-class submarine * Type 039 submarine * Upholder/Victoria-class submarine The ''Upholder''/''Victoria''-class submarines, also known as the Type 2400 (due to their displacement of 2,400 tonnes), are the class of the diesel-electric submarines built in the United Kingdom in the 1980s to supplement the nuclear subma ... * Collins-class submarine * Lada-class submarine * S-80-class submarine References * ''Jane's Fighting ...
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Oyashio Class Submarine
The ''Oyashio'' class is a series of Japanese diesel-electric attack submarines operated by the JMSDF. The submarines entered service in the late 1990s. The submarines are larger than the earlier , to provide space for a flank sonar array. Boats There are a total of 11 boats in the class - the last boat was commissioned in 2008. ''Oyashio'', ''Michishio'', and ''Kuroshio'' share their names with World War II destroyers. ''Takashio'' shares a name with a ship from the third set of s, of which none were built. The first two boats, ''Oyashio'' and ''Michishio'', have since been converted to training platforms. On February 1, 2018, the Ministry of Defence's Maritime Staff Office revealed that seven of the service's ''Oyashio''-class submarines, which have a surface displacement of 2,800 tonnes – have already completed service-life extension work to date. The seven boats received extensive refits during their second and third maintenance cycles, which have been planned to br ...
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Swashplate Engine
A cam engine is a reciprocating engine where, instead of the conventional crankshaft, the pistons deliver their force to a cam that is then caused to rotate. The output work of the engine is driven by this cam. Cam engines are deeply rooted in history. The first engine to get an airworthiness certificate from the United States government was, in fact, a radial cam engine. A variation of the cam engine, the swashplate engine (also the closely related wobble-plate engine), was briefly popular. These are generally thought of as internal combustion engines, although they have also been used as hydraulic- and pneumatic motors. Hydraulic motors, particularly the swashplate form, are widely and successfully used. Internal combustion engines, though, remain almost unknown. Operation Operating cycle Some cam engines are two-stroke engines, rather than four-stroke. Two modern example are the KamTech and Earthstar, both radial-cam engines. In a two-stroke engine, the forces on the pisto ...
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Mark 48 Torpedo
The Mark 48 and its improved Advanced Capability (ADCAP) variant are American heavyweight submarine-launched torpedoes. They were designed to sink deep-diving nuclear-powered submarines and high-performance surface ships. History The Mark 48 was initially developed as REsearch TORpedo Concept II (RETORC II), one of several weapons recommended for implementation by Project Nobska, a 1956 summer study on submarine warfare. The Mk-48 torpedo was designed at the end of the 1960s to keep up with the advances in Soviet submarine technology. Operational since 1972, it replaced the Mk-37, Mk-14 and Mk-16 torpedoes as the principal weapon of U.S. Navy submarines. With the entry into service of the new Soviet in 1977, the decision was made to accelerate the ADCAP program, which would bring significant modifications to the torpedo. Tests were run to ensure that the weapon could keep up with the developments and the weapon was modified with improved acoustics and electronics. The new v ...
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