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Tango-class Submarine
The Tango class was the NATO reporting name of a class of diesel-electric submarines that were built in the Soviet Union to replace the s assigned to the Black Sea and Northern Fleets. The Soviet designation of this class was Project 641B and it was also known as the Som (Catfish) class. The first of the class was completed in 1972 at Gorky. A total of 18 were built in two slightly different versions. The later type was several metres longer than the first, possibly because of the installation of ASW missile equipment. The bow sonar installations appear to be similar to those fitted to Soviet nuclear attack submarines. The propulsion plant was the same as the last subgroup of the Foxtrot class. The Tango class had far more battery capacity, far higher than any previous conventional submarine class in the Soviet Navy; as a result, pressure hull volume increased. This allowed an underwater endurance in excess of a week before snorkeling was required. Coupled with new armament ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Atlantic
The Atlantic Ocean is the second-largest of the world's five oceans, with an area of about . It covers approximately 20% of Earth's surface and about 29% of its water surface area. It is known to separate the "Old World" of Africa, Europe and Asia from the "New World" of the Americas in the European perception of the World. The Atlantic Ocean occupies an elongated, S-shaped basin extending longitudinally between Europe and Africa to the east, and North and South America to the west. As one component of the interconnected World Ocean, it is connected in the north to the Arctic Ocean, to the Pacific Ocean in the southwest, the Indian Ocean in the southeast, and the Southern Ocean in the south (other definitions describe the Atlantic as extending southward to Antarctica). The Atlantic Ocean is divided in two parts, by the Equatorial Counter Current, with the North(ern) Atlantic Ocean and the South(ern) Atlantic Ocean split at about 8°N. Scientific explorations of the Atlan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Submarine Snorkel
A submarine snorkel is a device which allows a submarine to operate submerged while still taking in air from above the surface. British Royal Navy personnel often refer to it as the snort. A concept devised by Dutch engineers, it was widely used on German U-boats during the last year of World War II and known to them as a ''Schnorchel''. History Until the advent of nuclear power, submarines were designed to operate on the surface most of the time and submerge only for evasion or for daylight attacks. Until the widespread use of radar after 1940, at night a submarine was safer on the surface than submerged, because sonar could detect boats underwater but was almost useless against a surface vessel. However, with continued radar improvement as the war progressed, submarines (notably, the German U-boats in the Battle of the Atlantic) were forced to spend more time underwater, running on electric motors that gave speeds of only a few knots and very limited range. An early subma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ryazan
Ryazan ( rus, Рязань, p=rʲɪˈzanʲ, a=ru-Ryazan.ogg) is the largest city and administrative center of Ryazan Oblast, Russia. The city is located on the banks of the Oka River in Central Russia, southeast of Moscow. As of the 2010 Census, Ryazan had a population of 524,927, making it the 33rd most populated city in Russia, and the fourth most populated in Central Russia after Moscow, Voronezh, and Yaroslavl. Ryazan was previously known as Pereyaslavl-Ryazansky () until 1778, where it became the new capital of the Principality of Ryazan following the Mongol invasion of Kievan Rus'. The original capital, located downstream on the Oka and now known as Old Ryazan (), was among the first cities in Russia to be beseiged and destroyed during the invasion that began in 1237. The city is known for the Ryazan Kremlin, a historic museum; the Pozhalostin Museum, one of the oldest art museums in Russia; the Memorial Museum-Estate of Academician I.P. Pavlov; and the Ryaza ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyarny, Murmansk Oblast
Polyarny (russian: Поля́рный) is a town and the administrative center of the closed administrative-territorial formation of Alexandrovsk in Murmansk Oblast, Russia, situated on the outermost western side of the Kola Bay. Population: It was previously known as ''Alexandrovsk'' (until 15 March 1926), ''Alexandrovskoye'' (until 11 March 1931), ''Polyarnoye'' (until 19 September 1939). History It was founded in 1896 and named Alexandrovsk () in honor of Tsar Alexander III.Official website of PolyarnyHistory of Polyarny, p. 5 Other sources, however, state that the original name was Alexandrovsk-na-Murmane (), it was called so after Alexandra Fyodorovna, wife of Emperor Nicholas II, and did not become known as "Alexandrovsk" until later.Pospelov, p. 26 Town status was granted to it on 1899.''Administrative-Territorial Division of Murmansk Oblast'', p. 24 At the same time, Alexandrovsk became an uyezd town, for which reason Kolsky Uyezd was re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conning Tower
A conning tower is a raised platform on a ship or submarine, often armored, from which an officer in charge can conn the vessel, controlling movements of the ship by giving orders to those responsible for the ship's engine, rudder, lines, and ground tackle. It is usually located as high on the ship as practical, to give the conning team good visibility of the entirety of the ship, ocean conditions, and other vessels. The naval term "conn" may derive from the Middle English ''conne'' (study, become acquainted with) or French ''conduire'' from Latin ''conducere'' (conduct). Surface ships On surface ships, the conning tower was a feature of all battleships and armored cruisers from about 1860 to the early years of World War II. Located at the front end of the superstructure, the conning tower was a heavily armored cylinder, with tiny slit windows on three sides providing a reasonable field of view. Designed to shield just enough personnel and devices for navigation during batt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hamburg
Hamburg (, ; nds, label=Hamburg German, Low Saxon, Hamborg ), officially the Free and Hanseatic City of Hamburg (german: Freie und Hansestadt Hamburg; nds, label=Low Saxon, Friee un Hansestadt Hamborg),. is the List of cities in Germany by population, second-largest city in Germany after Berlin, as well as the overall List of cities in the European Union by population within city limits, 7th largest city and largest non-capital city in the European Union with a population of over 1.85 million. Hamburg's urban area has a population of around 2.5 million and is part of the Hamburg Metropolitan Region, which has a population of over 5.1 million people in total. The city lies on the River Elbe and two of its tributaries, the River Alster and the Bille (Elbe), River Bille. One of Germany's 16 States of Germany, federated states, Hamburg is surrounded by Schleswig-Holstein to the north and Lower Saxony to the south. The official name reflects History of Hamburg, Hamburg's history ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moscow
Moscow ( , US chiefly ; rus, links=no, Москва, r=Moskva, p=mɐskˈva, a=Москва.ogg) is the capital and largest city of Russia. The city stands on the Moskva River in Central Russia, with a population estimated at 13.0 million residents within the city limits, over 17 million residents in the urban area, and over 21.5 million residents in the metropolitan area. The city covers an area of , while the urban area covers , and the metropolitan area covers over . Moscow is among the world's largest cities; being the most populous city entirely in Europe, the largest urban and metropolitan area in Europe, and the largest city by land area on the European continent. First documented in 1147, Moscow grew to become a prosperous and powerful city that served as the capital of the Grand Duchy that bears its name. When the Grand Duchy of Moscow evolved into the Tsardom of Russia, Moscow remained the political and economic center for most of the Tsardom's history. When ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tushino
Tushino ( rus, Тушино, p=ˈtuʂɨnə) is a former village and town to the north of Moscow, which has been part of the city's area since 1960. Between 1939 and 1960, Tushino was classed as a separate town. The Skhodnya River flows across the southern part of Tushino. History The village was attested since the late 14th century as an estate of boyar Vasili Ivanovich Kvashnin-Tusha and later his sons Pyotr and Semyon. In the middle of the 16th century, the village and the nearby Saviour Monastery were acquired by the Troitse-Sergiyeva Lavra. One of the finest of Russian tent-like churches was built in the monastery under Ivan the Terrible. In the late 16th century, the monastery used to provide lodging for foreign diplomatic missions before their arrival in Moscow. During the Time of Troubles, False Dmitry II and his supporters settled in Tushino between 1608 and 1610. The Tushino camp was a replica of the Muscovite court, having its own prikazes and the Patriarch. From her ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tolyatti
Tolyatti ( rus, Толья́тти, p=tɐlʲˈjætʲ(ː)ɪ), also known as Togliatti, formerly known as Stavropol (1737–1964), is a city in Samara Oblast, Russia. It is the largest city in Russia which does not serve as the administrative center of a federal subject, or to be one's largest city. Population: The city is best known as the home of Russia's largest car manufacturer AvtoVAZ ( Lada), where it was renamed after Italian communist politician Palmiro Togliatti in 1964. History Tolyatti was founded in 1737 as a fortress called Stavropol () by the Russian statesman Vasily Tatishchev. Informally it was often referred as Stavropol-on-Volga (, ''Stavropol-na-Volge'') to distinguish from Stavropol, a larger city in southwest Russia, although Stavropol-on-Volga was never its official name. The construction of the Kuybyshev Dam and Hydroelectric Station on the Volga River in the 1950s created the Kuybyshev Reservoir, which covered the existing location of the city, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AvtoVAZ Technical Museum
The AvtoVAZ Technical Museum is a museum in the Russian city of Tolyatti. The formal name is now K.G. Sakharov History of Technology Park Complex (Парковый комплекс истории техники имени К. Г. Сахарова). The AvtoVAZ plant, one of the largest automobile factories in the world, is a tourist attraction. AvtoVAZ decided to add a museum to the plant, and in 1998 plans were made to develop a museum, which opened in 2001 as the AvtoVAZ Technical Museum. The museum (mostly outdoors) hosts about 500 vehicles of many types – cars, locomotives, boats, aircraft, and military vehicles – demonstrating the development of Soviet and Russian motorized transport. The timeline of AvtoVAZ Ladas and Zhigulis from their 1970s introduction to recent times is well covered. Among the exhibits is a long Tango-class submarine, of which the transport from St Petersburg to Tolyatti was a considerable project. The submarine was installed in 2005 and parts o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chokepoint
In military strategy, a choke point (or chokepoint) is a geographical feature on land such as a valley, defile or bridge, or maritime passage through a critical waterway such as a strait, which an armed force is forced to pass through in order to reach its objective, sometimes on a substantially narrowed front and therefore greatly decreasing its combat effectiveness by making it harder to bring superior numbers to bear. A choke point can allow a numerically inferior defending force to use the terrain as a force multiplier to thwart or ambush a much larger opponent, as the attacker cannot advance any further without first securing passage through the choke point. Historical examples Some historical examples of the tactical use of choke points are King Leonidas I's defense of the Pass of Thermopylae during an invasion led by Xerxes I of Persia; the Battle of Stamford Bridge in which Harold Godwinson defeated Harald Hardrada; William Wallace's victory over the English at the B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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