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Soviet K-class Submarine
The K class were the largest submarines built for the Soviet Navy in the World War II era. Design The design was approved in 1936 as a long range "cruiser submarine" with a heavy torpedo and gun armament. The boats could operate as a "fleet submarine" working with the battle fleet or as long range commerce raiders. They were a significantly improved version of the and overcame most of their shortcomings (Conway's Fighting Ships). The double hull was divided into seven compartments. It was originally planned to carry a small floatplane for scouting but this concept was abandoned when the planned aircraft proved too flimsy. Yakubov and Worth state that these were the most successful Soviet submarines of the World War II era, with high speed and good seakeeping. This class of submarine possessed better ventilation and air conditioning systems than any other class of Soviet submarine in World War II. They had amenities such as a bunk for every sailor, small cabins for each offi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shadowgraph Kreiserskaya Class Submarine
Shadowgraph is an optical method that reveals non-uniformities in transparent media like air, water, or glass. It is related to, but simpler than, the schlieren and schlieren photography methods that perform a similar function. Shadowgraph is a type of flow visualisation. In principle, a difference in temperature, a different gas, or a shock wave in the transparent air cannot be seen by the human eye or cameras. However, all these disturbances refract light rays, so they can cast shadows. The plume of hot air rising from a fire, for example, can be seen by way of its shadow cast upon a nearby surface by the uniform sunlight. Sunlight shadowgraph Some aquatic predators detect their transparent prey by way of their shadows cast upon the ocean floor. It was Robert Hooke who first scientifically demonstrated the sunlight shadowgraph and Jean-Paul Marat who first used it to study fire. A modern account of shadowgraphy is given by Gary S. Settles. Applications Applicat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Båtsfjord
Båtsfjord ( sme, Báhcavuotna) is a municipality in Troms og Finnmark county, Norway. The administrative centre of the municipality is the village of Båtsfjord (which is the only settlement remaining in the municipality). Båtsfjord Airport is a new, modern airport, located just outside Båtsfjord village. The Hurtigruten coastal express ferry also has regularly-scheduled stops in Båtsfjord village. The municipality is the 60th largest by area out of the 356 municipalities in Norway. Båtsfjord is the 269th most populous municipality in Norway with a population of 2,165. The municipality's population density is and its population has increased by 3.6% over the previous 10-year period. Historically, there were many other villages in the municipality, but they have been abandoned over the years. Some of these villages include Hamningberg (abandoned in 1964), Makkaur (abandoned in the 1950s), Sandfjord/Ytre Syltefjord (abandoned in 1946), Hamna (abandoned around 1950), and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soviet K-class Submarines
The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a Federation, federal union of Republics of the Soviet Union, fifteen national republics; in practice, both Government of the Soviet Union, its government and Economy of the Soviet Union, its economy were highly Soviet-type economic planning, centralized until its final years. It was a one-party state governed by the Communist Party of the Soviet Union, with the city of Moscow serving as its capital as well as that of its largest and most populous republic: the Russian Soviet Federative Socialist Republic, Russian SFSR. Other major cities included Saint Petersburg, Leningrad (Russian SFSR), Kyiv, Kiev (Ukrainian Soviet Socialist Republic, Ukrainian SSR), Minsk (Byelorussian Soviet Socialist Republic, Byelorussian SSR), Tas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Submarine Classes
A submarine (or sub) is a watercraft capable of independent operation underwater. It differs from a submersible, which has more limited underwater capability. The term is also sometimes used historically or colloquially to refer to remotely operated vehicles and Autonomous underwater vehicle, robots, as well as medium-sized or smaller vessels, such as the midget submarine and the wet sub. Submarines are referred to as ''boats'' rather than ''ships'' irrespective of their size. Although experimental submarines had been built earlier, submarine design took off during the 19th century, and they were adopted by several navies. They were first widely used during World War I (1914–1918), and are now used in many navy, navies, large and small. Military uses include attacking enemy surface ships (merchant and military) or other submarines, and for aircraft carrier protection, Blockade runner, blockade running, Ballistic missile submarine, nuclear deterrence, reconnaissance, conventio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magomet Gadzhiyev
Magomet Imadutinovich Gadzhiyev (russian: Магомет Имадутдинович Гаджиев; 20 December 1907 – 12 May 1942) was a Soviet Navy submarine commander and Hero of the Soviet Union. He fought and died during World War II. Biography Gadzhiev was an ethnic Avar, born into a peasant family in the Megeb area of Dagestan. He joined the navy in 1925 and graduated from the Frunze Higher Naval School in 1932. He was appointed to the submarine division of the Black Sea Fleet and was second in command of the AG class submarine ''A2''. He subsequently commanded the submarines ''M-9'' and ''ShCh-117''. In 1939 he studied at the Voroshilov Naval Academy and was assigned to the Northern Fleet on graduation. He became commander of the submarine brigade of the Northern Fleet in 1940. His command sank 10 German transports in 1942. On 12 May 1942 his boat, the K class '' K 23'', was sunk by German forces commanded by Wolfgang Kaden with all hands lost. Awards and honours ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wolfgang Kaden
Wolfgang is a German male given name traditionally popular in Germany, Austria and Switzerland. The name is a combination of the Old High German words ''wolf'', meaning "wolf", and ''gang'', meaning "path", "journey", "travel". Besides the regular "wolf", the first element also occurs in Old High German as the combining form "-olf". The earliest reference of the name being used was in the 8th century. The name was also attested as "Vulfgang" in the Reichenauer Verbrüderungsbuch in the 9th century. The earliest recorded famous bearer of the name was a tenth-century Saint Wolfgang of Regensburg. Due to the lack of conflict with the pagan reference in the name with Catholicism, it is likely a much more ancient name whose meaning had already been lost by the tenth century. Grimm (''Teutonic Mythology'' p. 1093) interpreted the name as that of a hero in front of whom walks the "wolf of victory". A Latin gloss by Arnold of St Emmeram interprets the name as ''Lupambulus''.E. Fö ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nikolai Lunin (1854 –1937), Russian scientist
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Nikolai Lunin or Nikolay Lunin (Russian: Николай Лунин) may refer to the following notable people: * Nikolai Lunin (admiral) (1907–1970), admiral in the Soviet Navy *Nikolai Lunin (scientist) Nikolai Ivanovich Lunin (21 May 1854 – 18 June 1937) was a Russian Empire and later Soviet scientist who was the first to discover the existence of vitamins. As a student in Basel, he fed mice on a diet of proteins, fats, sugar, salts and water ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Convoy PQ 17
PQ 17 was the code name for an Allies of World War II, Allied Arctic convoys, Arctic convoy during the Second World War. On 27 June 1942, the ships sailed from Hvalfjörður, Iceland, for the port of Arkhangelsk in the Soviet Union. The convoy was located by Nazi Germany, German forces on 1 July, after which it was shadowed continuously and attacked. The First Sea Lord Admiral Dudley Pound, acting on information that Kriegsmarine#Surface ships, German surface units, including the German battleship Tirpitz, German battleship ''Tirpitz'', were moving to intercept, ordered the covering force built around the Allied battleships HMS Duke of York (17), HMS ''Duke of York'' and the USS Washington (BB-56), USS ''Washington'' away from the convoy and told the convoy to scatter. Because of vacillation by ''Oberkommando der Wehrmacht'' (OKW, German armed forces high command), the ''Tirpitz'' raid never materialised. The convoy was the first large joint Anglo-American naval operation under Brit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siege Of Leningrad
The siege of Leningrad (russian: links=no, translit=Blokada Leningrada, Блокада Ленинграда; german: links=no, Leningrader Blockade; ) was a prolonged military blockade undertaken by the Axis powers against the Soviet Union, Soviet city of Leningrad (present-day Saint Petersburg) on the Eastern Front (World War II), Eastern Front of World War II. Nazi Germany, Germany's Army Group North advanced from the south, while the German-allied Finnish Army, Finnish army invaded from the north and completed the ring around the city. The siege began on 8 September 1941, when the Wehrmacht severed the last road to the city. Although Soviet forces managed to open a narrow land corridor to the city on 18 January 1943, the Red Army did not lift the siege until 27 January 1944, 872 days after it began. The blockade became one of the List of sieges, longest and most destructive sieges in history, and it was possibly the List of battles by casualties#Sieges and urban combat, cost ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Submarine
A submarine (or sub) is a watercraft capable of independent operation underwater. It differs from a submersible, which has more limited underwater capability. The term is also sometimes used historically or colloquially to refer to remotely operated vehicles and Autonomous underwater vehicle, robots, as well as medium-sized or smaller vessels, such as the midget submarine and the wet sub. Submarines are referred to as ''boats'' rather than ''ships'' irrespective of their size. Although experimental submarines had been built earlier, submarine design took off during the 19th century, and they were adopted by several navies. They were first widely used during World War I (1914–1918), and are now used in many navy, navies, large and small. Military uses include attacking enemy surface ships (merchant and military) or other submarines, and for aircraft carrier protection, Blockade runner, blockade running, Ballistic missile submarine, nuclear deterrence, reconnaissance, conventio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soviet Northern Fleet
Severnyy flot , image = Great emblem of the Northern Fleet.svg , image_size = 150px , caption = Northern Fleet's great emblem , start_date = June 1, 1733; Soviet iteration: August 5, 1933 , country = , branch = , type = Fleet , role = Nuclear deterrence;Naval warfare; Amphibious military operations;Combat patrols in the Arctic/Atlantic;Naval presence/diplomacy missions in the Atlantic and elsewhere , size = c. 32 surface warships plus additional support ships/auxiliaries c. 34+ active submarines , command_structure = , garrison = , garrison_label = , nickname = , patron = , motto = , colors = , colors_label ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Floatplane
A floatplane is a type of seaplane with one or more slender floats mounted under the fuselage to provide buoyancy. By contrast, a flying boat uses its fuselage for buoyancy. Either type of seaplane may also have landing gear suitable for land, making the vehicle an amphibious aircraft. British usage is to call "floatplanes" "seaplanes" rather than use the term "seaplane" to refer to both floatplanes and flying boats. Use Since World War II and the advent of helicopters, advanced aircraft carriers and land-based aircraft, military seaplanes have stopped being used. This, coupled with the increased availability of civilian airstrips, have greatly reduced the number of flying boats being built. However, numerous modern civilian aircraft have floatplane variants, most of these are offered as third-party modifications under a supplemental type certificate (STC), although there are several aircraft manufacturers that build floatplanes from scratch. These floatplanes have found t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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