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Vanya Class Minesweeper
The Vanya class were a series of minesweepers built for the Soviet Navy between 1960 and 1973. The Soviet designation was Project 257. Design The ships were designed as coastal mine hunters. The hulls were built out of wood for significantly reduced magnetic signature. Measures were also taken to reduce electrical and acoustic signature. The propellers were fitted without bubble shields. A more advanced version the Project 257DM was introduced in the mid-1960s. The Project 699 was a version with more powerful diesel engines for towing heavier sweeps. In addition to 8 naval mines, all Project 257D, Project 257DM, and Project 699 vessels were armed with a single AK-230M autocannon for anti-aircraft defence. Ships A total of 47 units were built by shipyards in Kolpino and Vladivostok (3 Project 699). Exports * Bulgaria - 7 ships (1969–1980) * Syria - 2 ships (1972) All ships were retired by the mid-1990s See also * List of ships of the Soviet Navy * List of ships of Russia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minesweeper
A minesweeper is a small warship designed to remove or detonate naval mines. Using various mechanisms intended to counter the threat posed by naval mines, minesweepers keep waterways clear for safe shipping. History The earliest known usage of the naval mine dates to the Ming dynasty.Needham, Volume 5, Part 7, 203–205. Dedicated minesweepers, however, only appeared many centuries later during the Crimean War, when they were deployed by the British. The Crimean War minesweepers were rowboats trailing Grappling hook, grapnels to snag mines. Minesweeping technology picked up in the Russo-Japanese War, using aging torpedo boats as minesweepers. In Britain, naval leaders recognized before the outbreak of World War I that the development of sea mines was a threat to the nation's shipping and began efforts to counter the threat. Sir Arthur Wilson, 3rd Baronet, Sir Arthur Wilson noted the real threat of the time was a blockade aided by mines and not an invasion. The function of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diesel Engine
The diesel engine, named after the German engineer Rudolf Diesel, is an internal combustion engine in which Combustion, ignition of diesel fuel is caused by the elevated temperature of the air in the cylinder due to Mechanics, mechanical Compression (physics), compression; thus, the diesel engine is called a compression-ignition engine (CI engine). This contrasts with engines using spark plug-ignition of the air-fuel mixture, such as a petrol engine (gasoline engine) or a gas engine (using a gaseous fuel like natural gas or liquefied petroleum gas). Introduction Diesel engines work by compressing only air, or air combined with residual combustion gases from the exhaust (known as exhaust gas recirculation, "EGR"). Air is inducted into the chamber during the intake stroke, and compressed during the compression stroke. This increases air temperature inside the Cylinder (engine), cylinder so that atomised diesel fuel injected into the combustion chamber ignites. The torque a dies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cold War Minesweepers Of The Soviet Union
Cold is the presence of low temperature, especially in the atmosphere. In common usage, cold is often a subjective perception. A lower bound to temperature is absolute zero, defined as 0.00K on the Kelvin scale, an absolute thermodynamic temperature scale. This corresponds to on the Celsius scale, on the Fahrenheit scale, and on the Rankine scale. Since temperature relates to the thermal energy held by an object or a sample of matter, which is the kinetic energy of the random motion of the particle constituents of matter, an object will have less thermal energy when it is colder and more when it is hotter. If it were possible to cool a system to absolute zero, all motion of the particles in a sample of matter would cease and they would be at complete rest in the classical sense. The object could be described as having zero thermal energy. Microscopically in the description of quantum mechanics, however, matter still has zero-point energy even at absolute zero, because ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minesweepers Of The Soviet Navy
A minesweeper is a small warship designed to remove or detonate naval mines. Using various mechanisms intended to counter the threat posed by naval mines, minesweepers keep waterways clear for safe shipping. History The earliest known usage of the naval mine dates to the Ming dynasty.Needham, Volume 5, Part 7, 203–205. Dedicated minesweepers, however, only appeared many centuries later during the Crimean War, when they were deployed by the British. The Crimean War minesweepers were rowboats trailing grapnels to snag mines. Minesweeping technology picked up in the Russo-Japanese War, using aging torpedo boats as minesweepers. In Britain, naval leaders recognized before the outbreak of World War I that the development of sea mines was a threat to the nation's shipping and began efforts to counter the threat. Sir Arthur Wilson noted the real threat of the time was a blockade aided by mines and not an invasion. The function of the fishing fleet's trawlers with their trawl gear ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mine Warfare Vessel Classes
Mine, mines, miners or mining may refer to: Extraction or digging *Miner, a person engaged in mining or digging *Mining, extraction of mineral resources from the ground through a mine Grammar *Mine, a first-person English possessive pronoun Military * Mining (military), digging under a fortified military position to penetrate its defenses * Mine warfare ** Anti-tank mine, a land mine made for use against armored vehicles ** Antipersonnel mine, a land mine targeting people walking around, either with explosives or poison gas ** Bangalore mine, colloquial name for the Bangalore torpedo, a man-portable explosive device for clearing a path through wire obstacles and land mines ** Cluster bomb, an aerial bomb which releases many small submunitions, which often act as mines ** Land mine, explosive mines placed under or on the ground ** Naval mine, or sea mine, a mine at sea, either floating or on the sea bed, often dropped via parachute from aircraft, or otherwise lain by surface sh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Ships Of Russia By Project Number
The list of ships of Russia by project number includes all Soviet and Russian ships by known assigned project numbers. Ship descriptions are Russian assigned classifications when known. The Russian term ''проект'' ( tr. ''proyekt'') can be translated either as the cognate "project" or as "design". Warsaw Pact states and Post-Soviet states also used an equivalent term to classify their ships, such as the Polish Project 664 torpedo boat or the Ukrainian Project 58155 Hyurza-M armoured gunboat. See also * U.S. Navy SCB projects list References ;Bibliography * * * * * External links * {{cite web , url= http://www.globalsecurity.org/military/world/russia/ship-projects.htm , title=Russian Ship Project Numbers since 1936 , first=Stuart , last=Slade , work=globalsecurity.org Project Ships A ship is a large vessel that travels the world's oceans and other navigable waterways, carrying cargo or passengers, or in support of specialized missions, such as defense, re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Ships Of The Soviet Navy
This is a list of ships and classes of the Soviet Navy. Soviet Ship Type Designations Corvettes / MPK, MRK In the Soviet Navy these were classified as small anti-submarine ships (MPK) or small missile ships (MRK). * (Projects 122A, 122bis) * (Project 204) * (Project 1124 ''Al'batros'') ** Grisha-class corvette, Grisha I class (Project 1124.1), 37 ships built in 1966–1982 ** Grisha-class corvette, Grisha II class (Project 1124P, ''P'' stands for ''pogranichnyi'' – on the border), 20 ships built in 1972–1988 ** Grisha-class corvette, Grisha III class (AK-630 CIWS-equipped variant) ** Grisha-class corvette, Grisha IV class (Project 1124K) ** Grisha-class corvette, Grisha V class (Project 1124M, sometimes noted as 1124.4) * (Project 1234 ''Ovod'') ** Nanuchka-class corvette, Nanuchka I class ** Nanuchka-class corvette, Nanuchka II class (Project 1234E) ** Nanuchka-class corvette, Nanuchka III class (Project 1234.1) ** Nanuchka-class corvette, Nanuchka IV class (Project ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Syrian Navy
The Syrian Arab Navy (SyAN or SAN; ) was the naval branch of the Syrian Armed Forces during the rule of the Ba'ath Party in Syria. The main role of the Syrian Navy was to defend the country's coasts and ensure the security of the territorial waters of Syria. The Coastal Defense Forces and the Syrian Marines were attached to the Navy since the late 20th century. The Syrian Navy was relatively small, with only 4,000 sailors, in addition to 2,500 reservists and 1,500 marines, prior to the collapse of Ba'athist Syria in 2024. It was under the Syrian Army's Latakia regional command with its fleet based in the ports of Baniyas, Latakia, Minet el-Beida, and Tartus. It was the smallest part of the Syrian Arab Republic Armed Forces. After the collapse of Ba'athist Syria in 2024, military assets and infrastructure fell into the hands of a new coalition which is attempting to reconstitute previous state institutions under new leadership, organization and direction, as a unified national ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bulgarian Navy
The Bulgarian Navy () is the navy A navy, naval force, military maritime fleet, war navy, or maritime force is the military branch, branch of a nation's armed forces principally designated for naval warfare, naval and amphibious warfare; namely, lake-borne, riverine, littoral z ... of the Republic of Bulgaria and forms part of the Military of Bulgaria, Bulgarian Armed Forces. The Principality of Bulgaria established its navy soon after its creation, in 1879, to operate on the Danube river and the Black Sea, but the young country could spend only limited resources on warships. In the conflicts of the 20th century in which Bulgaria was involved - the Balkan Wars, World War I and World War II, the navy played a limited role, mainly protecting Bulgarian harbors and shipping. The navy's greatest combat feat was a torpedo attack against an Ottoman cruiser during the First Balkan War that forced the ship to retreat. In the aftermath of World War II, the People's Republic of Bulgari ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mine Hunter
A minehunter is a naval vessel that seeks, detects, and destroys individual naval mines. Minesweepers, on the other hand, clear mined areas as a whole, without prior detection of mines. A vessel that combines both of these roles is known as a mine countermeasures vessel (MCMV). Description A minehunter uses an imaging sonar to detect and classify targets and then sends out divers or remotely operated vehicles (ROVs) to inspect and neutralise the threat, often using small charges that are detonated remotely. As minehunters will often be operating in close proximity to mines, they are designed so as to reduce their own acoustic and magnetic signatures, two common forms of trigger for mines. For example, they are often soundproofed by mounting machinery on shock absorbers or by using quiet electrical drive, low magnetic electric motors and usually have a wood, fiberglass or non-ferrous metal hull, or are degaussed to reduce magnetic signature.Design Guide and Requiremen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diesel Engine
The diesel engine, named after the German engineer Rudolf Diesel, is an internal combustion engine in which Combustion, ignition of diesel fuel is caused by the elevated temperature of the air in the cylinder due to Mechanics, mechanical Compression (physics), compression; thus, the diesel engine is called a compression-ignition engine (CI engine). This contrasts with engines using spark plug-ignition of the air-fuel mixture, such as a petrol engine (gasoline engine) or a gas engine (using a gaseous fuel like natural gas or liquefied petroleum gas). Introduction Diesel engines work by compressing only air, or air combined with residual combustion gases from the exhaust (known as exhaust gas recirculation, "EGR"). Air is inducted into the chamber during the intake stroke, and compressed during the compression stroke. This increases air temperature inside the Cylinder (engine), cylinder so that atomised diesel fuel injected into the combustion chamber ignites. The torque a dies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soviet Navy
The Soviet Navy was the naval warfare Military, uniform service branch of the Soviet Armed Forces. Often referred to as the Red Fleet, the Soviet Navy made up a large part of the Soviet Union's strategic planning in the event of a conflict with the opposing superpower, the United States, during the Cold War (1945–1991). The Soviet Navy played a large role during the Cold War, either confronting the North Atlantic Treaty Organization in western Europe or power projection to maintain its Warsaw Pact, sphere of influence in eastern Europe. The Soviet Navy was divided into four major fleets: the Soviet Northern Fleet, Northern, Pacific Fleet (Russia), Pacific, Black Sea Fleet, Black Sea, and Baltic Fleet, Baltic Fleets, in addition to the Leningrad Naval Base, which was commanded separately. It also had a smaller force, the Caspian Flotilla, which operated in the Caspian Sea and was followed by a larger fleet, the 5th Operational Squadron, 5th Squadron, in the Mediterranean Sea. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
