Japanese Submarine Ro-30
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Japanese Submarine Ro-30
''Ro-30'', originally named ''Submarine No. 69'', was an Imperial Japanese Navy ''Kaichu''-Type submarine of the ''Kaichu'' V (''Toku Chu'') subclass. She was in commission from 1924 to 1938, seeing service in the waters of Formosa and Japan, then served as a stationary training hulk during World War II. Design and description The submarines of the ''Kaichu'' V sub-class were designed for anti-shipping operations and carried more fuel and had greater range and a heavier gun armament than preceding ''Kaichu''-type submarines. They displaced surfaced and submerged. The submarines were long and had a beam of and a draft of . They had a diving depth of . For surface running, the submarines were powered by two Sulzer diesel engines, each driving one propeller shaft. When submerged each propeller was driven by a electric motor. They could reach on the surface and underwater. On the surface, they had a range of — although the Imperial Japanese Navy officially announced it as ...
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Kawasaki Heavy Industries
(or simply Kawasaki) is a Japanese Public company, public multinational corporation manufacturer of motorcycles, engines, Heavy equipment (construction), heavy equipment, aerospace and Military, defense equipment, rolling stock and ships, headquartered in Chūō-ku, Kobe, Chūō, Kobe and Minato, Tokyo, Minato, Tokyo, Japan. It is also active in the production of industrial robots, gas turbines, pumps, boilers and other industrial products. The company is named after its founder, Kawasaki Shōzō, Shōzō Kawasaki. KHI is known as one of the three major heavy industrial manufacturers of Japan, alongside Mitsubishi Heavy Industries and IHI Corporation, IHI. Prior to the World War II, Second World War, KHI was part of the Kobe Kawasaki ''zaibatsu'', which included JFE Holdings, Kawasaki Steel and K Line, Kawasaki Kisen. After the conflict, KHI became part of the DKB Group (''keiretsu''). History Kawasaki Shōzō, Shōzō Kawasaki, born in 1836, was involved with the marine indu ...
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World War II
World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing military alliances: the Allies and the Axis powers. World War II was a total war that directly involved more than 100 million personnel from more than 30 countries. The major participants in the war threw their entire economic, industrial, and scientific capabilities behind the war effort, blurring the distinction between civilian and military resources. Aircraft played a major role in the conflict, enabling the strategic bombing of population centres and deploying the only two nuclear weapons ever used in war. World War II was by far the deadliest conflict in human history; it resulted in 70 to 85 million fatalities, mostly among civilians. Tens of millions died due to genocides (including the Holocaust), starvation, ma ...
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Penghu
The Penghu (, Hokkien POJ: ''Phîⁿ-ô͘''  or ''Phêⁿ-ô͘'' ) or Pescadores Islands are an archipelago of 90 islands and islets in the Taiwan Strait, located approximately west from the main island of Taiwan, covering an area of . The largest city is Magong, located on the largest island, which is also named Magong. The Penghu islands had its first historical record during the Tang dynasty and were inhabited by Chinese people by the Song dynasty, during which it was attached to Jinjiang County of Fujian. The archipelago was formally incorporated as an administrative unit of China under the jurisdiction of Tong'an County of Jiangzhe Province in 1281 during the Yuan dynasty. It continued to be controlled by Imperial China with brief European occupations, until it was ceded to the Japanese Empire in 1895. After World War II, Penghu has been governed by the Republic of China (ROC). Under the terms of Sino-American Mutual Defense Treaty and the subsequent Taiwan Re ...
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Magong
Magong ( POJ: ''Má-keng'') is a county-administered city and seat of Penghu County, Taiwan. Magong City is located on Penghu's main island. Name The settlement's temple honoring the Chinese Goddess Mazu, the deified form of Lin Moniang from medieval Fujian Province, is usually accounted the oldest in all of Taiwan and Penghu. The town was originally named Makeng () but was changed to during Japanese rule in 1920, and was the center of the Mako Guard District. After 1945, the Wade-Giles romanization Makung was used. Taiwan officially adopted Tongyong Pinyin in 2002 and Hanyu Pinyin in 2009, leading to the romanization Magong. History The island's Mazu temple was erected in the late 16th or early 17th century. The city Magong'ao began to grow around 1887, during the rule of the Qing dynasty. Under Japanese rule, the settlement was renamed Makō and organized as a subprefecture of Hōko. The area was a major base of the Imperial Japanese Navy. It was an embarka ...
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Mako Defense Division
, better known by the mononym name Mako (sometimes stylised MAKO), is a Japanese voice actress, singer and a member of the band Bon-Bon Blanco, in which her prominent role is as the maraca player. She has also performed in a Japanese television drama called '' Meido in Akihabara''. She is affiliated with I'm Enterprise. Her anime voice acting debut was in ''Kamichu!'' where, in the ending theme song, her character also plays the maracas. As Hinako Hiiragi in anime ''Chitose Get You!!'' she plays maracas again, in the ending theme (episodes 1–13). Filmography Anime ;2005 *''Kamichu!'' as Yurie Hitotsubashi ;2006 *'' School Rumble: 2nd Semester'' as Karen Ichijō ;2008 *'' Kannagi: Crazy Shrine Maidens'' as Clerk (ep 10), Lolikko Cutie *'' Kyo no Gononi'' as Kazumi Aihara ;2009 *''Sweet Blue Flowers'' as Child (ep 4), Primary School Student B (ep 1), The Flower (eps 5–6) *''The Girl Who Leapt Through Space'' as Akiha Shishidō ;2010 *''K-ON!'' as Classmate *'' Jewelpet Twi ...
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Sasebo Naval District
was the third of five main administrative districts of the pre-war Imperial Japanese Navy. Its territory included the western and southern coastline of Kyūshū, the Ryukyu Islands, Taiwan and Korea, as well as patrols in the East China Sea and the Pacific Sasebo also contained the Sasebo Naval Arsenal, specializing mostly in destroyers and smaller warships; and its anchorage was one of the largest in Japan. The District encompassed anchorages at Imari and Hirado ports as well as the designated third echelon naval ports of Takeshiki ( Tsushima), Kagoshima, Kuji ( Amami-Ōshima), and Wakamatsu (Gotō Islands) History The location of Sasebo facing China and Korea, and near the foreign treaty port of Nagasaki was recognized of strategic importance by the leaders of the early Meiji government and early Imperial Japanese Navy. In 1883, the then Lieutenant Commander Tōgō Heihachirō nominated what was a tiny fishing village as the ideal location for a naval base. With the formation ...
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Ship Commissioning
Ship commissioning is the act or ceremony of placing a ship in active service and may be regarded as a particular application of the general concepts and practices of project commissioning. The term is most commonly applied to placing a warship in active duty with its country's military forces. The ceremonies involved are often rooted in centuries-old naval tradition. Ship naming and launching endow a ship hull with her identity, but many milestones remain before she is completed and considered ready to be designated a commissioned ship. The engineering plant, weapon and electronic systems, galley, and other equipment required to transform the new hull into an operating and habitable warship are installed and tested. The prospective commanding officer, ship's officers, the petty officers, and seamen who will form the crew report for training and familiarization with their new ship. Before commissioning, the new ship undergoes sea trials to identify any deficiencies needing corre ...
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Ceremonial Ship Launching
Ceremonial ship launching involves the performance of ceremonies associated with the process of transferring a vessel to the water. It is a nautical tradition in many cultures, dating back thousands of years, to accompany the physical process with ceremonies which have been observed as public celebration and a solemn blessing, usually but not always, in association with the launch itself. Ship launching imposes stresses on the ship not met during normal operation and, in addition to the size and weight of the vessel, represents a considerable engineering challenge as well as a public spectacle. The process also involves many traditions intended to invite good luck, such as christening by breaking a sacrificial bottle of champagne over the bow as the ship is named aloud and launched. Methods There are three principal methods of conveying a new ship from building site to water, only two of which are called "launching". The oldest, most familiar, and most widely used is th ...
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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 ...
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Torpedo
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 naval mine, 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 naval artillery, large-caliber guns, the invention and refinement of torpedoes from the 1860s onwards allowed small torpedo boats and other lighter surface combatant , surface vessels, submarines/submersibles, even improvised fishing boats or frogmen, and later light aircraft, to destroy large shi ...
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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 other sizes of torpedo tube have been used: see Torpedo#Classes and diameters, Torpedo classes and diameters. 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 t ...
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Propeller Shaft
A drive shaft, driveshaft, driving shaft, tailshaft (Australian English), propeller shaft (prop shaft), or Cardan shaft (after Girolamo Cardano) is a component for transmitting mechanical power and torque and rotation, usually used to connect other components of a drivetrain that cannot be connected directly because of distance or the need to allow for relative movement between them. As torque carriers, drive shafts are subject to torsion and shear stress, equivalent to the difference between the input torque and the load. They must therefore be strong enough to bear the stress, while avoiding too much additional weight as that would in turn increase their inertia. To allow for variations in the alignment and distance between the driving and driven components, drive shafts frequently incorporate one or more universal joints, jaw couplings, or rag joints, and sometimes a splined joint or prismatic joint. History The term ''driveshaft'' first appeared during the mid-19th centu ...
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