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Yakovlev Yak-14
The Yakovlev Yak-14 (russian: Яковлев Як-14; NATO reporting name: "Mare") was the largest assault glider ever to enter service with the Soviet Air Force. It was introduced in 1949, at a time when other air forces were abandoning the glider concept. In 1950 a Yak-14 became the first glider to fly over the North Pole.Gunston, Bill. ''Yakovlev Aircraft since 1924''. London, UK: Putnam Aeronautical Books, 1997. . Design and development During World War II, the Soviet Union operated only light gliders like the Gribovsky G-11, Antonov A-7 and Kolesnikov-Tsybin KC-20 which were unable to transport vehicles, light tanks or artillery. Only after the war were Soviet designers ordered to develop medium gliders capable of carrying heavy or bulky loads."Як-14" ''Уголок Неба''. Retrieved 16 December 2011. (in Russian) In 1948 the S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WikiProject Aircraft
A WikiProject, or Wikiproject, is a Wikimedia movement affinity group for contributors with shared goals. WikiProjects are prevalent within the largest wiki, Wikipedia, and exist to varying degrees within sister projects such as Wiktionary, Wikiquote, Wikidata, and Wikisource. They also exist in different languages, and translation of articles is a form of their collaboration. During the COVID-19 pandemic, CBS News noted the role of Wikipedia's WikiProject Medicine in maintaining the accuracy of articles related to the disease. Another WikiProject that has drawn attention is WikiProject Women Scientists, which was profiled by '' Smithsonian'' for its efforts to improve coverage of women scientists which the profile noted had "helped increase the number of female scientists on Wikipedia from around 1,600 to over 5,000". On Wikipedia Some Wikipedia WikiProjects are substantial enough to engage in cooperative activities with outside organizations relevant to the field at issue. For e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Duralumin
Duralumin (also called duraluminum, duraluminium, duralum, dural(l)ium, or dural) is a trade name for one of the earliest types of age-hardenable aluminium alloys. The term is a combination of '' Dürener'' and ''aluminium''. Its use as a trade name is obsolete. Today the term mainly refers to aluminium–copper alloys, designated as the 2000 series by the international alloy designation system (IADS), as with 2014 and 2024 alloys used in airframe fabrication. History Duralumin was developed by the German metallurgist Alfred Wilm at Dürener Metallwerke AG. In 1903, Wilm discovered that after quenching, an aluminium alloy containing 4% copper would harden when left at room temperature for several days. Further improvements led to the introduction of duralumin in 1909. The name is mainly used in pop-science to describe all Al-Cu alloys system, or '2000' series, as designated through the international alloy designation system originally created in 1970 by the Aluminum A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Krasnoyarsk
Krasnoyarsk ( ; rus, Красноя́рск, a=Ru-Красноярск2.ogg, p=krəsnɐˈjarsk) (in semantic translation - Red Ravine City) is the largest city and administrative center of Krasnoyarsk Krai, Russia. It is situated along the Yenisey River, and is the second-largest city in Siberia after Novosibirsk, with a population of over 1.1 million. Krasnoyarsk is an important junction of the renowned Trans-Siberian Railway, and is one of the largest producers of aluminium in the country. The city is known for its natural landscape; author Anton Chekhov judged Krasnoyarsk to be the most beautiful city in Siberia. The Stolby Nature Sanctuary is located 10 km south of the city. Krasnoyarsk is a major educational centre in Siberia, and hosts the Siberian Federal University. In 2019, Krasnoyarsk was the host city of the 2019 Winter Universiade, the third hosted in Russia. Geography The total area of the city, including suburbs and the river, is .Poexaly.ru. Krasnoyars ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tula, Russia
Tula ( rus, Тула, p=ˈtulə) is the largest city and the administrative center of Tula Oblast in Russia, located south of Moscow. Tula is located in the northern Central Russian Upland on the banks of the Upa River, a tributary of the Oka. At the 2010 census, Tula had a population of 501,169, an increase from 481,216 in 2002, making it the 32nd largest city in Russia by population. A primarily industrial city, Tula was a fortress at the border of the Principality of Ryazan. The city was seized by Ivan Bolotnikov, and withstood a four-month siege by the Tsar's army. Historically, Tula was a major centre for the manufacture of armaments. The Demidov family built the first armament factory in Russia in the city, in what would become the Tula Arms Plant, which still operates to this day. Tula is home to the Klokovo air base, Tula State University, Tula Kremlin, The Tula State Museum of Weapons and Kazanskaya embankment of the Upa River (). Tula has a historical association ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arctic Ocean
The Arctic Ocean is the smallest and shallowest of the world's five major oceans. It spans an area of approximately and is known as the coldest of all the oceans. The International Hydrographic Organization (IHO) recognizes it as an ocean, although some oceanographers call it the Arctic Mediterranean Sea. It has been described approximately as an estuary of the Atlantic Ocean. It is also seen as the northernmost part of the all-encompassing World Ocean. The Arctic Ocean includes the North Pole region in the middle of the Northern Hemisphere and extends south to about 60°N. The Arctic Ocean is surrounded by Eurasia and North America, and the borders follow topographic features: the Bering Strait on the Pacific side and the Greenland Scotland Ridge on the Atlantic side. It is mostly covered by sea ice throughout the year and almost completely in winter. The Arctic Ocean's surface temperature and salinity vary seasonally as the ice cover melts and freezes; its salinity is t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drift Ice
Drift ice, also called brash ice, is sea ice that is not attached to the shoreline or any other fixed object (shoals, grounded icebergs, etc.).Leppäranta, M. 2011. The Drift of Sea Ice. Berlin: Springer-Verlag. Unlike fast ice, which is "fastened" to a fixed object, drift ice is carried along by winds and sea currents, hence its name. When drift ice is driven together into a large single mass (>70% coverage), it is called pack ice. Wind and currents can pile up that ice to form ridges up to tens of metres in thickness. These represent a challenge for icebreakers and offshore structures operating in cold oceans and seas. Drift ice consists of ice floes, individual pieces of sea ice or more across. Floes are classified according to size: ''small'' – to ; ''medium'' – to ; ''big'' – to ; ''vast'' – to ; and ''giant'' – more than . Drift ice affects: * Security of navigation * Climatic impact (see Polar ice packs) * Geological impact * Biosphere influence (see Ecol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drifting Ice Station
A drifting ice station is a temporary or semi-permanent facility built on an ice floe. During the Cold War the Soviet Union and the United States maintained a number of stations in the Arctic Ocean on floes such as Fletcher's Ice Island for research and espionage, the latter of which were often little more than quickly constructed shacks. Extracting personnel from these stations proved difficult and in the case of the United States, employed early versions of the Fulton surface-to-air recovery system. Overview Soviet and Russian staffed drifting ice stations are research stations built on the ice of the high latitudes of the Arctic Ocean. They are important contributors to exploration of the Arctic. The stations are named North Pole (NP; russian: Северный полюс, translit=Severny polyus, ), followed by an ordinal number: North Pole-1, etc. NP drift stations carry out the program of complex year-round research in the fields of oceanology, ice studies, meteorology, ae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ilyushin Il-12
The Ilyushin Il-12 (NATO reporting name: Coach) was a Soviet twin-engine cargo aircraft, developed in the mid-1940s for small and medium-haul airline routes and as a military transport. Design and development The Il-12 was developed as a private venture by the Ilyushin Design Bureau from autumn 1943 and was intended as a replacement for the Lisunov Li-2, a license-produced version of the Douglas DC-3. The new aircraft followed a classical layout for a twin-engine transport, with a metallic structure, monoplane wings, a conventional tail section. One major improvement over the Li-2 design was the tricycle landing gear, which allowed better visibility when taxiing and landing. Initially the Il-12 was designed for 29 passengers in a pressurized fuselage, with projected maximum range is assumed of 5,000 kilometers at a cruising speed 400 km/h. The aircraft was to use four M-88B engines already proven in use on the Ilyushin Il-4. However, during development, the M-88B engines ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rostov-on-Don
Rostov-on-Don ( rus, Ростов-на-Дону, r=Rostov-na-Donu, p=rɐˈstof nə dɐˈnu) is a port city and the administrative centre of Rostov Oblast and the Southern Federal District of Russia. It lies in the southeastern part of the East European Plain on the Don River (Russia), Don River, from the Sea of Azov, directly north of the North Caucasus. The southwestern suburbs of the city lie above the Don river delta. Rostov-on-Don has a population of over one million people, and is an important cultural centre of Southern Russia. History Early history From ancient times, the area around the mouth of the Don River has held cultural and commercial importance. Ancient indigenous inhabitants included the Scythians, Scythian and Sarmatians, Sarmatian tribes. It was the site of Tanais, colonies in antiquity, an ancient Greek colony, Gazaria (Genoese colonies), Fort Tana under the Genoa, Genoese, and Azov#Fortress of Azov, Fort Azak in the time of the Ottoman Empire. In 1749, a c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chkalovsk, Russia
Chkalovsk (russian: Чка́ловск) is a types of inhabited localities in Russia, town in Nizhny Novgorod Oblast, Russia, located on the right bank of the Volga River, northwest of Nizhny Novgorod, the administrative center of the oblast. As of the Russian Census (2010), 2010 Census, its population was 12,368. It was previously known as ''Vasilyeva Sloboda/Vasilyovo'' (until 1938). It was renamed after its most famous inhabitant, the war hero Valeri Chkalov.Soviet Calendar: 1917-1947 (CCCP publication) History It has been known since the 12th century as Vasilyeva Sloboda, named so in honor of its founder Prince Vasily Yuryevich, the son of Yury Dolgoruky. For a long time the territory belonged to Prince Shuysky who eventually became Tsar Vasily IV of Russia, Vasily Shuysky. The famous Russian pilot Valery Chkalov was born in 1904 in Vasilyovo. In 1937, Vasilyovo was renamed Chkalovsk after him and in 1955 it was granted town status. Most of the original village was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Assault Gun
Assault gun (from german: Sturmgeschütz - "storm gun", as in "storming/assaulting") is a type of self-propelled artillery which uses an infantry support gun mounted on a motorized chassis, normally an armored fighting vehicle, which are designed to provide direct fire support for infantry attacks, especially against other infantry or fortified positions. Assault guns were pioneered by the Soviet Union and Nazi Germany during the 1930s, initially being self-propelled guns with direct fire in mind (such as the Soviet SU-5-1), with Germany introducing the first purpose-built (and purpose-named) assault gun, the Sturmgeschütz III, in 1940. Historically, the concept of assault guns was very similar to that of the infantry tank, as both were combat vehicles intended to accompany infantry formations into battle. However, during World War II assault guns were more mobile than tanks and could be utilized as both direct and indirect fire artillery. Although they could approximate the fi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ASU-57
The ASU-57 was a small, lightly constructed Soviet assault gun specifically designed for use by Soviet airborne divisions. From 1960 onwards, it was gradually phased out in favour of the ASU-85. Development history The task to develop a lightweight assault gun for the airborne troops (with either a 57 mm gun or a 76 mm gun) was given to two design bureaus, Astrov (OKB-40) in Mytishchi and Kravtsev in Moscow. Nikolaj Astrov's OKB-40 designed the ASU-76, based on components of the T-70 light tank and the SU-76 assault gun, and armed with the new 76 mm gun D-56T. The ASU-76 turned out to be too heavy, even though the armour was only 3 mm thick, and the project was cancelled. Anatoly Kravtsev's team came up with the similar, amphibious K-73. This vehicle was armed with Charnko's 57 mm anti-tank gun Ch-51 and was even more thinly armoured than the ASU-76. This project too was shelved. In 1949, Astrov was instructed to continue with his project, but with redu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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