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ORP Kaszub (1987)
ORP ''Kaszub'' is a corvette of the Polish Navy, in service since 1987, the sole ship of the Project 620 class. She was the first ocean-going warship built in Poland. As of 2012 she is in active service.''The Military Balance 2008'',International Institute for Strategic Studies Construction and career The work on her design began in 1971, but the construction of the first ship started only in 1984, being laid down at Gdańsk Shipyard, Stocznia Północna (Northern Shipyard), Gdańsk on 9 June 1984. ''Kaszub'' was launched on 11 May 1986, but was found to have a warped hull and propeller shafts, which required repair. When the ship was commissioned on 15 March 1987, ''Kaszub'' was not fitted with much of the planned armament, with a 9K33 Osa (NATO codename SA-N-4 ''Gecko'') surface-to-air missile launcher being omitted because of its unreliability on small, high speed ships, while the ship's main gun armament was absent because of stability problems.Gardiner and Chumbley 1995 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gdańsk Shipyard
The Gdańsk Shipyard ( pl, Stocznia Gdańska, formerly Lenin Shipyard) is a large Polish shipyard, located in the city of Gdańsk. The yard gained international fame when Solidarity () was founded there in September 1980. It is situated on the western side of Martwa Wisła and on Ostrów Island. History Gdańsk Shipyard was founded in 1946 as a state-owned company, on sites of the former German shipyards, Schichau-Werft and Danziger Werft, both considerably damaged in the Second World War. On 1 July 1952 a state-owned enterprise called Baza Remontowa-Ostrow was established on Ostrów Island. The name changed to Gdańska Stocznia Remontowa later in the year. During the time of the People's Republic of Poland, the complex was known as the Gdańsk Shipyard and Vladimir Lenin Shipyard in Gdańsk (1967–89). The Northern Shipyard (Stocznia Północna) was also formed in June 1945, when it was known as Shipyard No. 3. Its activities were mainly production and repairs of trains, tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gdańsk
Gdańsk ( , also ; ; csb, Gduńsk;Stefan Ramułt, ''Słownik języka pomorskiego, czyli kaszubskiego'', Kraków 1893, Gdańsk 2003, ISBN 83-87408-64-6. , Johann Georg Theodor Grässe, ''Orbis latinus oder Verzeichniss der lateinischen Benennungen der bekanntesten Städte etc., Meere, Seen, Berge und Flüsse in allen Theilen der Erde nebst einem deutsch-lateinischen Register derselben''. T. Ein Supplement zu jedem lateinischen und geographischen Wörterbuche. Dresden: G. Schönfeld’s Buchhandlung (C. A. Werner), 1861, p. 71, 237.); Stefan Ramułt, ''Słownik języka pomorskiego, czyli kaszubskiego'', Kraków 1893, Gdańsk 2003, ISBN 83-87408-64-6. * , )Johann Georg Theodor Grässe, ''Orbis latinus oder Verzeichniss der lateinischen Benennungen der bekanntesten Städte etc., Meere, Seen, Berge und Flüsse in allen Theilen der Erde nebst einem deutsch-lateinischen Register derselben''. T. Ein Supplement zu jedem lateinischen und geographischen Wörterbuche. Dresden: G. Schönf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maritime Call Sign
Maritime call signs are call signs assigned as unique identifiers to ships and boats. All radio transmissions must be individually identified by the call sign. Merchant and naval vessels are assigned call signs by their national licensing authorities. History One of the earliest applications of radiotelegraph operation, long predating broadcast radio, were marine radio stations installed aboard ships at sea. In the absence of international standards, early transmitters constructed after Guglielmo Marconi's first trans-Atlantic message in 1901 were issued arbitrary two-letter calls by radio companies, alone or later preceded by a one-letter company identifier. These mimicked an earlier railroad telegraph convention where short, two-letter identifiers served as Morse code abbreviations to denote the various individual stations on the line (for instance, AX could represent Halifax). "N" and two letters would identify U.S. Navy; "M" and two letters would be a Marconi station. On Apr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Displacement (ship)
The displacement or displacement tonnage of a ship is its weight. As the term indicates, it is measured indirectly, using Archimedes' principle, by first calculating the volume of water displaced by the ship, then converting that value into weight. Traditionally, various measurement rules have been in use, giving various measures in long tons. Today, tonnes are more commonly used. Ship displacement varies by a vessel's degree of load, from its empty weight as designed (known as "lightweight tonnage") to its maximum load. Numerous specific terms are used to describe varying levels of load and trim, detailed below. Ship displacement should not be confused with measurements of volume or capacity typically used for commercial vessels and measured by tonnage: net tonnage and gross tonnage. Calculation The process of determining a vessel's displacement begins with measuring its draft.George, 2005. p.5. This is accomplished by means of its "draft marks" (or "load lines"). A mer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AK-176
The AK-176 is a Soviet naval gun mounted in an enclosed turret, that may be used against sea, coastal, and aerial targets, including low flying anti-ship missiles. The system is designed to arm small displacement ships and comprises the Gun Mount with a MR-123-02/76 Fire Control Radar System. It has high survivability owing to autonomous use of the gun mount controlled from the optical sight in the absence of control from the radar system, as well as a capability for fire even if power supply is lost. Design The gun is fed by 152 ready to fire rounds and has selectable rates of fire of 30, 60 and 120 rounds per minute. The 120 r.p.m. rate is achieved by firing a burst of 75, but afterwards the gun has to cool off for 30 minutes. The AK-176 is effective against missiles, being able to shoot down AT-2 Swatter (simulating a Harpoon anti-ship missile), taking an average of 25 rounds per kill. In the late 1980s an upgraded version the AK-176M, with a new fire control system MR-12 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AM-35 Tryton
The Mikulin AM-35 was a 1930s Soviet piston aircraft engine. Derived from the AM-34FRN, the AM-35 entered production in 1940 and was used on the MiG-1 and MiG-3 World War II fighters as well as the Petlyakov Pe-8 heavy bomber. Description The AM-35 was a high-altitude engine for fighters and bombers that evolved from the earlier AM-34FRN. Compared to the AM-34FRN it had an improved cylinder block, strengthened crankcase, higher compression ratio and a single-speed geared centrifugal supercharger with variable incidence blades. The AM-35 was developed in 1938 at the design bureau of Factory No. 24 now called the Salyut factory in Moscow. In March 1939 the AM-35 successfully passed its Factory tests and in April 1939 it passed its State tests. However, the VVS was not satisfied with the engine due to its rated power of 1,300 horsepower, which was 200 horsepower less than the specified requirement. The AM-35 also used a single-speed supercharger instead of the two-speed s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ZU-23-2
The ZU-23-2, also known as ZU-23, is a Soviet towed 23×152mm anti-aircraft twin-barreled autocannon. ZU stands for ''Zenitnaya Ustanovka'' (Russian: Зенитная Установка) – anti-aircraft mount. The GRAU index is 2A13. Development history The ZU-23-2 was developed in the late 1950s. It was designed to engage low-flying targets at a range of 2.5 km as well as armoured vehicles at a range of two kilometres and for direct defence of troops and strategic locations against air assault usually conducted by helicopters and low-flying airplanes. In 1955, KBP presented the single-barrel ZU-1 and the twin-barrel ZU-14. While the former was eventually dropped, the ZU-14 was selected and, after some modifications, entered series production. In the Soviet Union, some 140,000 units were produced. The ZU-23 has also been produced under licence by Bulgaria, Poland, Egypt and the People's Republic of China. Development of this weapon into a self-propelled anti-aircraft gu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strela 2
The 9K32 Strela-2 (russian: Cтрела, "arrow"; NATO reporting name SA-7 Grail) is a light-weight, shoulder-fired, surface-to-air missile (or MANPADS) system. It is designed to target aircraft at low altitudes with passive infrared homing guidance and destroy them with a high explosive warhead. Broadly comparable in performance with the US Army FIM-43 Redeye, the Strela-2 was the first Soviet man-portable SAM – full-scale production began in 1970. While the Redeye and 9K32 Strela-2 were similar, the missiles were not identical. The Strela-2 was a staple of the Cold War and was produced in huge numbers for the Soviet Union and their allies, as well as revolutionary movements. Though since surpassed by more modern systems, the Strela and its variants remain in service in many countries, and have seen widespread use in nearly every regional conflict since 1972. Development The end of World War II led to a major shift in Soviet defence policy. The advent of long range, hi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RBU-6000
The RBU-6000 Smerch-2 (Реактивно-Бомбовая Установка, ''Reaktivno-Bombovaja Ustanovka''; reaction engine-bomb installation & Смерч; waterspout) is a 213 mm caliber Soviet Union, Soviet anti-submarine weapon, anti-submarine multiple rocket launcher, rocket launcher. It is similar in principle to the Royal Navy Hedgehog (weapon), Hedgehog system used during the Second World War. The system entered service in 1960–1961 and is fitted to a wide range of Russian surface vessels. It consists of a horseshoe-shaped arrangement of twelve launch barrels, that are remotely directed by the Burya fire control system (that can also control the shorter ranged RBU-1000). It fires RGB-60 unguided depth charges. The rockets are normally fired in salvos of 1, 2, 4, 8 or 12 rounds. Reloading is automatic, with individual rounds being fed into the launcher by the 60UP loading system from a below deck magazine. Typical magazine capacity is either 72 or 96 rounds per ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corvette
A corvette is a small warship. It is traditionally the smallest class of vessel considered to be a proper (or " rated") warship. The warship class above the corvette is that of the frigate, while the class below was historically that of the sloop-of-war. The modern roles that a corvette fulfills include coastal patrol craft, missile boat and fast attack craft. These corvettes are typically between 500 tons and 2,000 .although recent designs may approach 3,000 tons, having size and capabilities that overlap with smaller frigates. However unlike contemporary frigates, a modern corvette does not have sufficient endurance and seaworthiness for long voyages. The word "corvette" is first found in Middle French, a diminutive of the Dutch word ''corf'', meaning a "basket", from the Latin ''corbis''. The rank "corvette captain", equivalent in many navies to "lieutenant commander", derives from the name of this type of ship. The rank is the most junior of three "captain" ranks in sev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
9K33 Osa
The 9K33 ''Osa'' (, literally "wasp"; NATO reporting name SA-8 ''Gecko'') is a highly mobile, low-altitude, short-range tactical surface-to-air missile system developed in the Soviet Union in the 1960s and fielded in 1972. Its export version name is Romb. Development Design work on an entirely new, self-propelled air defense guided missile system began in 1960 and was assigned to the Moscow-based () research and design institute under lead designer M.M. Kosichkin. The program initially suffered numerous delays and setbacks due to poorly formulated performance and tactical requirements, as this was a pioneering battlefield air defense system with no equivalents in existence at the time, and no doctrinal experience with such a weapon. P.M. Chukadov was assigned project leader in 1965 after a thorough review of the stalled program. The Osa had service acceptance in 1972 after a period of trials. Description The Osa was the first mobile air defense missile system incorporating it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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