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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. 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 by project number The list of ships of Russia by project number includes all Russian ships by assigned project numbers. Ship descriptions are Russian a ... [...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, where 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 noted the real threat of the time was blockade aided by mines and not invasion. The function of the fishing fleet's trawlers with their ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bulgarian Navy
The Bulgarian Navy ( bg, Военноморски сили на Република България, Voennomorski sili na Republika Balgariya, lit=Naval Forces of the Republic of Bulgaria) is the navy of the Republic of Bulgaria and forms part of the Bulgarian Armed Forces. It has been largely overlooked in the reforms that Bulgaria had to go through in order to comply with NATO standards, mostly because of the great expense involved and the fact that naval assaults are not considered to be a great concern for the country's security. That is why three of the four s (excluding ''Slava'') are now docked and have been out of operation for some time. The last one was decommissioned in November 2011. Only the more modern frigates, corvettes and missile crafts are on active duty. The Bulgarian Navy is centred in two main bases. One is near the city of Varna. The other is by the village of Atia, near the city of Burgas. Operational history First Balkan War The Bulgarian Navy's first ... [...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, where 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 blockade aided by mines and not invasion. The function of the fishing fleet's trawlers with their trawl gear was ... [...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 * 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 * Mining (military), digging under a fortified military position to penetrate its defenses * 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 ships or submarines * Pa ... [...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 Russian ships by assigned project numbers. Ship descriptions are Russian assigned classifications when known. (The Russian term "проект" can be translated either as the cognate "project" or as "design".) * Project 1: (Series I) * Project 2: (Series I & III) * Project 3: (Series I) * Project 4: (Series II) * Project 5: ''Toplivo-1'' class water lighter * Project 6: * Project 7: * Project 7U: * Project 9: S-class diesel attack submarine * Project 19: NKVD large guard ship, cancelled * Project 20: leader * Project 21: Study for 35,500-ton -style battleship * Project 22: Heavy cruiser design cancelled 1939 * Project 23: * Project 23bis: Improvement over Project 23 with simplified belt armor of 380mm, American style TDS replacing Italian style, additional twin 100mm dual-purpose guns, 4 triple 152mm guns instead of 6 twin 152mm guns. 12 406mm gun variant was also made * Project 24: post-World War II battleship ... [...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. Corvettes 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 I class (project 1124.1), 37 ships built in 1966–1982 ** Grisha II class (project 1124P, ''P'' stands for ''pogranichnyi'' – on the border), 20 ships built in 1972–1988 ** Grisha III class (AK-630 CIWS-equipped variant) ** Grisha IV class (project 1124K) ** Grisha V class (project 1124M, sometimes noted as 1124.4) * (project 1234 ''Ovod'') ** Nanuchka I class ** Nanuchka II class (project 1234E) ** Nanuchka III class (project 1234.1) ** Nanuchka IV class (project 1234.7) * (project 1239 ''Sivuch'') * (project 1240 ''Uragan'', considered missile boats by NATO) * (project 1241 ''Molniya'', classified as large missile cutters) ** Tarantul I class (project 1241RE) ** Tarantul II class (project 1241.1) ** ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Syrian Navy
The Syrian Navy, officially the Syrian Arab Navy ( ar, الْبَحْرِيَّةُ الْعَرَبِيَّةُ السُّورِيَّةُ, al-Baḥrīyah al-ʿArabīyah as-Sūrīyah), is the navy branch of the Syrian Armed Forces. The main role of the Syrian Navy is to defend the country's coasts and ensure the security of the territorial waters of Syria. The Coastal Defense Forces and the Syrian Marines have been attached to the Navy since the late 20th century. The Syrian navy is a relatively small navy with only 4,000 sailors, in addition to 2,500 reservists and 1,500 marines. It is under the Syrian Army's Latakia regional command with its fleet based in the ports of Baniyas, Latakia, Minet el-Beida, and Tartus. It is the smallest part of the Syrian Armed Forces. History On 29 August 1950, the Syrian Navy was established following the procurement of a few naval vessels from France. The initial personnel consisted of army soldiers who had been sent to French naval academies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diesel Engine
The diesel engine, named after Rudolf Diesel, is an internal combustion engine in which ignition of the fuel is caused by the elevated temperature of the air in the cylinder due to mechanical compression; thus, the diesel engine is a so-called 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). Diesel engines work by compressing only air, or air plus 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 the air temperature inside the cylinder to such a high degree that atomised diesel fuel injected into the combustion chamber ignites. With the fuel being injected into the air just before combustion, the dispersion of the fuel is une ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diesel Engine
The diesel engine, named after Rudolf Diesel, is an internal combustion engine in which ignition of the fuel is caused by the elevated temperature of the air in the cylinder due to mechanical compression; thus, the diesel engine is a so-called 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). Diesel engines work by compressing only air, or air plus 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 the air temperature inside the cylinder to such a high degree that atomised diesel fuel injected into the combustion chamber ignites. With the fuel being injected into the air just before combustion, the dispersion of the fuel is une ... [...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 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 Requirements f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
