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JDS Nemuro (LST-4103)
JDS ''Nemuro'' (LST-4103) was the third ship of the s of the Japanese Maritime Self-Defense Force. She was commissioned on 27 October 1977. Development and design The three ''Atsumi''-class tank landing ships (LSTs) had a standard displacement of and at full load. They were overall with a beam of and a draft of . Ships in the class were powered by two Kawasaki- MAN V8V 22/30 AMTL diesel engines turning two shafts rated at . This gave them a maximum speed of . Vessels of the class carried two Landing Craft Vehicle Personnel (LCVPs). The LCVPs were slung under davits and a traveling gantry crane with folding rails that could be extended over the side handled the two LCMs positioned on the foredeck. The LSTs could carry up 130 troops. The ''Atsumi'' class were armed with twin-mounted guns in a single turret placed each at the bow and aft. The LSTs were equipped with OPS-9 air search. They had a complement of 100 officers and crew. Construction and career She was la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nemuro, Hokkaido
is a city and port located in Nemuro Subprefecture, Hokkaido, Japan. It is the capital city of Nemuro Subprefecture. Much of the city lies on the Nemuro Peninsula. As of February 29, 2012, the city has an estimated population of 29,087, with 12,966 households, and a population density of 56.74 persons per km2 (147.0 persons per sq. mi.). The total area is . History Nemuro was developed by fisheries. In the early Meiji period, it was the largest city in eastern Hokkaido. *1900 Nemuro town was founded. *1906 Wada village was founded. *1945 Bombed by American naval aircraft, 393 people were killed. *1915 Habomai village was founded. *1957 Nemuro town and Wada village was merged to form Nemuro city. *1959 Habomai village was merged into Nemuro city. Climate Nemuro, like most of Hokkaido, has a humid continental climate (Köppen climate classification ''Dfb''), but not far from a marine climate (Koppen: ''Cfb'') due to its low amplitude for a location close to mainland Asia and av ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Propeller
A propeller (colloquially often called a screw if on a ship or an airscrew if on an aircraft) is a device with a rotating hub and radiating blades that are set at a pitch to form a helical spiral which, when rotated, exerts linear thrust upon a working fluid such as water or air. Propellers are used to pump fluid through a pipe or duct, or to create thrust to propel a boat through water or an aircraft through air. The blades are specially shaped so that their rotational motion through the fluid causes a pressure difference between the two surfaces of the blade by Bernoulli's principle which exerts force on the fluid. Most marine propellers are screw propellers with helical blades rotating on a propeller shaft (ship), propeller shaft with an approximately horizontal axis. History Early developments The principle employed in using a screw propeller is derived from sculling. In sculling, a single blade is moved through an arc, from side to side taking care to keep presenting the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
JMSDF Ōminato Base
, abbreviated , also simply known as the Japanese Navy, is the maritime warfare branch of the Japan Self-Defense Forces, tasked with the naval defense of Japan. The JMSDF was formed following the dissolution of the Imperial Japanese Navy (IJN) after World War II. The JMSDF has a fleet of 154 ships, 346 aircraft and 50,800 personnel. History Origin Following Japan's defeat in World War II, the Imperial Japanese Navy was dissolved by the Potsdam Declaration acceptance. Ships were disarmed, and some of them, such as the battleship , were taken by the Allied Powers as reparation. The remaining ships were used for repatriation of the Japanese soldiers from abroad and also for minesweeping in the area around Japan, initially under the control of the ''Second Bureau of the Demobilization Ministry''. The minesweeping fleet was eventually transferred to the newly formed Maritime Safety Agency, which helped maintain the resources and expertise of the navy. Japan's 1947 Constitution ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miyake-jima
is an inhabited volcanic island in the Izu archipelago in the Philippine Sea approximately southeast of Tokyo, Japan. As with the other islands in the Izu Island group, Miyake-jima forms part of the Fuji-Hakone-Izu National Park. Etymology There are many theories about the origin of Miyake-jima's name. One theory claims a manuscript about the island's genesis called the ''Miyakeki'' (三宅記), written by a Shinto priest from the island, influenced the name. The manuscript explains how a deity, ''Mashima (三嶋)'', constructed his palace on the island after having built two other houses on neighbouring islands. Each of the houses had their backs facing the palace, thus giving a lined up impression. This belief is known as the 'three house theory'. Another hypothesis says that the shrines on Miyake-jima are historically related to those on Miyajima, an island in Hiroshima Bay. As there are many more speculations, the true origin cannot be known. Geography The island is a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1993 Okushiri Earthquake
The or Okushiri earthquake occurred at 13:17:12 UTC on 12 July 1993 in the Sea of Japan near the island of Hokkaido.Japan Meteorological Agency officially named this earthquake 平成5年(1993年)北海道南西沖地震 (''Heisei 5 nen (1993 nen) Hokkaidō nansei-oki jishin'', literally ''the 1993 Southwest-off Hokkaido Earthquake'')気象庁が命名した気象及び地震火山現象 It had a magnitude of 7.7 on the moment magnitude scale and a maximum felt intensity of VIII (''Severe'') on the Mercalli intensity scale. It triggered a major tsunami that caused deaths on Hokkaidō and in southeastern Russia, with a total of 230 fatalities recorded. The island of Okushiri was hardest hit, with 165 casualties from the earthquake, the tsunami and a large landslide. Tectonic setting The northwestern side of Honshu lies on the southeastern margin of the Sea of Japan, an area of oceanic crust created by back-arc spreading associated with the convergent boundary where the Pacific Pl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Niigata Prefecture
is a Prefectures of Japan, prefecture in the Chūbu region of Honshu of Japan. Niigata Prefecture has a population of 2,227,496 (1 July 2019) and is the List of Japanese prefectures by area, fifth-largest prefecture of Japan by geographic area at . Niigata Prefecture borders Toyama Prefecture and Nagano Prefecture to the southwest, Gunma Prefecture to the south, Fukushima Prefecture to the east, and Yamagata Prefecture to the northeast. Niigata, Niigata, Niigata is the capital and largest city of Niigata Prefecture, with other major cities including Nagaoka, Niigata, Nagaoka, Jōetsu, Niigata, Jōetsu, and Sanjō, Niigata, Sanjō. Niigata Prefecture contains the Niigata Major Metropolitan Area centered on Niigata with a population of 1,395,612, the largest metropolitan area on the Sea of Japan coast and the twelfth-largest in Japan. Niigata Prefecture is part of the historic Hokuriku region and features Sado, Niigata, Sado Island, the sixth largest island of Japan in area follo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sado Island
is a city located on in Niigata Prefecture, Japan. Since 2004, the city has comprised the entire island, although not all of its total area is urbanized. Sado is the sixth largest island of Japan in area following the four main islands and Okinawa Island (excluding the Northern Territories). As of March 1, 2022, the city has an estimated population of 49,897 and a population density of 58.3 persons per square kilometre. The total area is 855.69 km2. History Political formation of the island The large number of pottery artifacts found near Ogi in the South of the island demonstrate that Sado was populated as early as the Jōmon period. The '' Nihon Shoki'' mentions that Mishihase people visited the island in 544 (although it is unknown whether Tungusic people effectively came). The island formed a distinct province, the Sado Province, separate from the Echigo province on Honshū, at the beginning of the 8th century. At first, the province was a single ''gun'' (district ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soviet Air Forces
The Soviet Air Forces ( rus, Военно-воздушные силы, r=Voyenno-vozdushnyye sily, VVS; literally "Military Air Forces") were one of the air forces of the Soviet Union. The other was the Soviet Air Defence Forces. The Air Forces were formed from components of the Imperial Russian Air Service in 1917, and faced their greatest test during World War II. The groups were also involved in the Korean War, and dissolved along with the Soviet Union itself in 1991–92. Former Soviet Air Forces' assets were subsequently divided into several air forces of former Soviet republics, including the new Russian Air Force. "March of the Pilots" was its song. Origins The ''All-Russia Collegium for Direction of the Air Forces of the Old Army'' (translation is uncertain) was formed on 20 December 1917. This was a Bolshevik aerial headquarters initially led by Konstantin Akashev. Along with a general postwar military reorganisation, the collegium was reconstituted as the "Workers' an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tupolev Tu-16
The Tupolev Tu-16 ( NATO reporting name: Badger) is a twin-engined jet strategic heavy bomber used by the Soviet Union. It has been flown for almost 70 years, and the Chinese license-built Xian H-6 remains in service with the People's Liberation Army Air Force. Development In the late 1940s, the Soviet Union was strongly committed to matching the United States in strategic bombing capability. The Soviets' only long-range bomber at the time was Tupolev's Tu-4 'Bull', a reverse-engineered copy of the American B-29 Superfortress. The development of the notably powerful Mikulin AM-3 turbojet led to the possibility of a large, jet-powered bomber. The Tupolev design bureau began work on the Tu-88 ("Aircraft N") prototypes in 1950. The Tu-88 first flew on 27 April 1952. After winning a competition against the Ilyushin Il-46, it was approved for production in December 1952. The first production bombers entered service with Frontal Aviation in 1954, receiving the service designation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bofors 40 Mm Gun
Bofors 40 mm gun is a name or designation given to two models of 40 mm calibre anti-aircraft guns designed and developed by the Swedish company Bofors: *Bofors 40 mm L/60 gun - developed in the 1930s, widely used in World War II and into the 1990s *Bofors 40 mm Automatic Gun L/70 - modernized replacement design of the 40 mm L/60, entering service in the 1950s Other Bofors gun disambiguation pages *Bofors 57 mm gun The Bofors 57 mm gun is a nickname or designation given to several types of guns designed and developed by the Swedish company Bofors: *, a 57 mm anti tank gun for the Swedish army during WW2. * Bofors 57 mm Automatic Gun L/50, a 57 ... * Bofors 120 mm gun External links {{set index ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gantry Crane
A gantry crane is a crane built atop a gantry, which is a structure used to straddle an object or workspace. They can range from enormous "full" gantry cranes, capable of lifting some of the heaviest loads in the world, to small shop cranes, used for tasks such as lifting automobile engines out of vehicles. They are also called portal cranes, the "portal" being the empty space straddled by the gantry. The terms gantry crane and overhead crane (or bridge crane) are often used interchangeably, as both types of crane straddle their workload. The distinction most often drawn between the two is that with gantry cranes, the entire structure (including gantry) is usually wheeled (often on rails). By contrast, the supporting structure of an overhead crane is fixed in location, often in the form of the walls or ceiling of a building, to which is attached a movable hoist running overhead along a rail or beam (which may itself move). Further confusing the issue is that gantry cranes may a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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