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VA-111 Shkval
The VA-111 ''Shkval'' (from russian: шквал, ''squall'') torpedo and its descendants are supercavitating torpedoes originally developed by the Soviet Union. They are capable of speeds in excess of 200 Knot (unit), knots (370 km/h or 230 miles/h). Design and capabilities Design began in the 1960s when the NII-24 research institute was ordered to produce a new weapon capable of engaging nuclear submarines. The merger of the institute and GSKB-47 created the Research Institute of Applied Hydromechanics, who continued with the design and production of the Shkval. Previously operational as early as 1977, the torpedo was announced as being deployed in the 1990s. The ''Shkval'' is intended as a countermeasure against torpedoes launched by undetected enemy submarines. The VA-111 is launched from torpedo tubes at . A solid-fuel rocket accelerates it to cavitation speed, with a combined-cycle gas turbine in the nose creating the required gas bubble. Once accelerated, speed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Supercavitating Torpedo
A supercavitating torpedo is a torpedo using the effect of supercavitation to create a bubble around the torpedo to move at high velocity under water. The following is a list of supercavitating torpedoes which have been developed or are in development. * VA-111 Shkval * Hoot Hoot may refer to: Publications * ''Hoot'' (novel), a young adult novel by Carl Hiaasen * ''Hoot'', a 1996 children's novel by Jane Hissey * ''Hoot'' (comics), a British magazine published from 1985 to 1986 * ''The Brandeis Hoot'', a student n ... * Superkavitierender Unterwasserlaufkörper (Supercavitating underwater-travelling munition) Barracuda * (Unnamed Prototype) Defense Tech References [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Supercavitation
Supercavitation is the use of a cavitation bubble to reduce skin friction drag on a submerged object and enable high speeds. Applications include torpedoes and propellers, but in theory, the technique could be extended to an entire underwater vessel. Physical principle Cavitation is the formation of vapour bubbles in liquid caused by flow around an object. Bubbles form when water accelerates around sharp corners and the pressure drops below the vapour pressure. Pressure increases upon deceleration, and the water generally reabsorbs the vapour; however, vapour bubbles can implode and apply small concentrated impulses that may damage surfaces like ship propellers and pump impellers. The potential for vapour bubbles to form in a liquid is given by the nondimensional cavitation number. It equals local pressure minus vapour pressure, divided by dynamic pressure. At increasing depths (or pressures in piping), the potential for cavitation is lower because the difference between local ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bone Cancer
A bone tumor is an abnormal growth of tissue in bone, traditionally classified as noncancerous (benign) or cancerous (malignant). Cancerous bone tumors usually originate from a cancer in another part of the body such as from lung, breast, thyroid, kidney and prostate. There may be a lump, pain, or neurological signs from pressure. A bone tumor might present with a pathologic fracture. Other symptoms may include fatigue, fever, weight loss, anemia and nausea. Sometimes there are no symptoms and the tumour is found when investigating another problem. Diagnosis is generally by X-ray and other radiological tests such as CT scan, MRI, PET scan and bone scintigraphy. Blood tests might include a complete blood count, inflammatory markers, serum electrophoresis, PSA, kidney function and liver function. Urine may be tested for Bence Jones protein. For confirmation of diagnosis, a biopsy for histological evaluation might be required. The most common bone tumor is a non-ossifyin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vladimir Putin
Vladimir Vladimirovich Putin; (born 7 October 1952) is a Russian politician and former intelligence officer who holds the office of president of Russia. Putin has served continuously as president or prime minister since 1999: as prime minister from 1999 to 2000 and from 2008 to 2012, and as president from 2000 to 2008 and since 2012. Putin worked as a KGB foreign intelligence officer for 16 years, rising to the rank of lieutenant colonel before resigning in 1991 to begin a political career in Saint Petersburg. He moved to Moscow in 1996 to join the administration of president Boris Yeltsin. He briefly served as director of the Federal Security Service (FSB) and secretary of the Security Council of Russia, before being appointed as prime minister in August 1999. After the resignation of Yeltsin, Putin became Acting President of Russia and, less than four months later, was elected outright to his first term as president. He was reelected in 2004. As he was constitutionall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edmond Pope
Edmond D. Pope (russian: link=no, Эдмонд Поуп) is a retired American intelligence officer-turned-businessman, convicted by a Russian court in 2000 on charges of spying for the U.S. Defense Intelligence Agency (DIA). He was sentenced to 20 years in prison for buying up and smuggling classified military equipment out of the country as scrap metal. 253 days into his custody, Pope was pardoned by the newly elected Russian President Vladimir Putin as US government claimed that Pope had a rare form of bone cancer. Pope has always maintained his innocence and continues to assert that the Russian authorities used him as a scapegoat for their broken system. In an interview with CNN, Pope spoke of a plot by unspecified people in the US, as well as the KGB and the Russian mafia, as a part of which Pope was being slowly poisoned in the Lefortovo Prison. Pope asserted that this was done with the hopes that he would eventually have to be transferred to a hospital, abducted on his wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Defense Intelligence Agency
The Defense Intelligence Agency (DIA) is an intelligence agency and combat support agency of the United States Department of Defense, specializing in defense and military intelligence. A component of the Department of Defense (DoD) and the Intelligence Community (IC), DIA informs national civilian and defense policymakers about the military intentions and capabilities of foreign governments and non-state actors. It also provides intelligence assistance, integration and coordination across uniformed military service intelligence components, which remain structurally separate from DIA. The agency's role encompasses the collection and analysis of military-related foreign political, economic, industrial, geographic, and medical and health intelligence. DIA produces approximately one-quarter of all intelligence content that goes into the President's Daily Brief. DIA's intelligence operations extend beyond the zones of combat, and approximately half of its employees serve oversea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RIA Novosti
RIA Novosti (russian: РИА Новости), sometimes referred to as RIAN () or RIA (russian: РИА, label=none) is a Russian state-owned domestic news agency. On 9 December 2013 by a decree of Vladimir Putin it was liquidated and its assets and workforce were transferred to the newly created Rossiya Segodnya agency. On 8 April 2014 RIA Novosti was registered as part of the new agency. RIA Novosti is headquartered in Moscow. The chief editor is Anna Gavrilova. Content RIA Novosti was scheduled to be closed down in 2014; starting in March 2014, staff were informed that they had the option of transferring their contracts to Rossiya Segodnya or sign a redundancy contract. On 10 November 2014, Rossiya Segodnya launched the Sputnik multimedia platform as the international replacement of RIA Novosti and Voice of Russia. Within Russia itself, however, Rossiya Segodnya continues to operate its Russian language news service under the name RIA Novosti with its ria.ru website. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kyrgyzstan
Kyrgyzstan,, pronounced or the Kyrgyz Republic, is a landlocked country in Central Asia. Kyrgyzstan is bordered by Kazakhstan to the north, Uzbekistan to the west, Tajikistan to the south, and the People's Republic of China to the east. Its capital and largest city is Bishkek. Ethnic Kyrgyz make up the majority of the country's seven million people, followed by significant minorities of Uzbeks and Russians. The Kyrgyz language is closely related to other Turkic languages. Kyrgyzstan's history spans a variety of cultures and empires. Although geographically isolated by its highly mountainous terrain, Kyrgyzstan has been at the crossroads of several great civilizations as part of the Silk Road along with other commercial routes. Inhabited by a succession of tribes and clans, Kyrgyzstan has periodically fallen under larger domination. Turkic nomads, who trace their ancestry to many Turkic states. It was first established as the Yenisei Kyrgyz Khaganate later in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tactical Missiles Corporation
, type = Joint-stock company , location = , industry = Defense industryAerospace industrySpace industry , founded = , founder = , hq_location_city = Korolyov, Moscow Oblast , hq_location_country = Russia , area_served = worldwide , key_people = Boris Viktorovich Obnosov (CEO) , products = Precision-guided munitions, Missiles, Ballistic missiles, Cruise missiles, Air-launched cruise missiles, Anti-aircraft missile systems, Anti-ship cruise missiles, Torpedoes, Underwater weapons, Aerial bombs, Glide bombs, Avionics, Electronics, Radars, Spacecraft, Unmanned aerial vehicles, Launch vehicles, Batteries , services = , revenue = , revenue_year = , operating_income = , income_year = , net_income = , net_income_year = , assets = , assets_year = , equity = , equity_year = , owner = Federal Agency for State Property Management (100%) , num_employees = , num_employees_year = , parent = , divisions = , subsid = , homepage www.ktrv.ru, footnotes = JSC Tactical Miss ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Warhead
A warhead is the forward section of a device that contains the explosive agent or toxic (biological, chemical, or nuclear) material that is delivered by a missile, rocket, torpedo, or bomb. Classification Types of warheads include: * Explosive: An explosive charge is used to disintegrate the target, and damage surrounding areas with a blast wave. ** Conventional: Chemicals such as gunpowder and high explosives store significant energy within their molecular bonds. This energy can be released quickly by a trigger, such as an electric spark. Thermobaric weapons enhance the blast effect by utilizing the surrounding atmosphere in their explosive reactions. ***Blast: A strong shock wave is provided by the detonation of the explosive. *** Fragmentation: Metal fragments are projected at high velocity to cause damage or injury. *** Continuous rod: Metal bars welded on their ends form a compact cylinder of interconnected rods, which is violently expanded into a contiguous zig-zag-shape ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Terminal Guidance
In the field of weaponry, terminal guidance refers to any guidance system that is primarily or solely active during the "terminal phase", just before the weapon impacts its target. The term is generally used in reference to missile guidance systems, and specifically to missiles that use more than one guidance system through the missile's flight. Common examples include long-range air-to-air missiles that use semi-active radar homing (SARH) during most of the missile's flight, and then use an infrared seeker or active radar homing once they approach their target. Similar examples include surface-to-air missiles, anti-ballistic missiles, and some anti-tank missiles. Concept Radar beams are cone-shaped, spreading out from the diameter of the antenna at a characteristic angle that is a function of the size of the antenna and its wavelength. This means that as one moves away from the radar, its accuracy continues to degrade while the signal grows weaker. This makes it difficult to use ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuclear Warhead
A nuclear weapon is an explosive device that derives its destructive force from nuclear reactions, either fission (fission bomb) or a combination of fission and fusion reactions (thermonuclear bomb), producing a nuclear explosion. Both bomb types release large quantities of energy from relatively small amounts of matter. The first test of a fission ("atomic") bomb released an amount of energy approximately equal to . The first thermonuclear ("hydrogen") bomb test released energy approximately equal to . Nuclear bombs have had yields between 10 tons TNT (the W54) and 50 megatons for the Tsar Bomba (see TNT equivalent). A thermonuclear weapon weighing as little as can release energy equal to more than . A nuclear device no larger than a conventional bomb can devastate an entire city by blast, fire, and radiation. Since they are weapons of mass destruction, the proliferation of nuclear weapons is a focus of international relations policy. Nuclear weapons have been deployed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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