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Project 664-class Torpedo Boat
The Project 664 (NATO reporting name ''Wisla'') class were Polish torpedo boats, designed in Poland in the 1970s. They were one of the few vessels of this size, powered by a gas turbine, and could achieve a great speed. Development In the late 1950s the Polish Navy decided to develop fast torpedo boats of own design, to supplement Soviet-origin project 183 (P-6) class torpedo boats. It was decided to use a gas turbine for propulsion and arm them with four torpedo tubes. Due to lack of previous experience in designing such craft, development was very long. In order to test the technology, a single experimental project 663D torpedo boat was built, ORP ''Błyskawiczny''. Her building started in 1961 and she entered service in 1965. Trials revealed some faults, and further development work was carried out. The result were the boats of the final project 664. They shared a similar silhouette, hull shape and a propulsion fit of 4 diesel and a TM-1 gas turbine engine in a CODAG arrangeme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ORP Sprawny
ORP may refer to: * Operational Ration Pack, UK military * Operational Readiness Plan * Operational Readiness Platform (ORP) * Orpington railway station, Bromley, England * O'Reilly Raceway Park at Indianapolis * Oxidation reduction potential in chemistry * , a Polish Navy ship prefix {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Klimov VK-1
The Klimov VK-1 was the first Soviet jet engine to see significant production. It was developed by and first produced by the GAZ 116 works. Derived from the Rolls-Royce Nene, the engine was also built under licence in China as the Wopen WP-5. Design and development Immediately after World War II, the Soviet Union manufactured copies of first generation German Junkers 004 and BMW 003 engines, which were advanced designs with poor durability, limited by Germany's shortage of rare metals in wartime. However, in 1946, before the Cold War had really begun, the new British Labour government under the prime minister, Clement Attlee, keen to improve diplomatic relations with the Soviet Union, authorised Rolls-Royce to export 40 Rolls-Royce Nene centrifugal flow turbojet engines. In 1958 it was discovered during a visit to Beijing by Whitney Straight, then deputy chairman of Rolls-Royce, that this engine had been copied without license to power the MiG-15 'Fagot', first as the RD-4 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Torpedo Boat Classes
A modern torpedo is an underwater ranged weapon launched above or below the water surface, self-propelled towards a target, with an explosive warhead designed to detonate either on contact with or in proximity to the target. Historically, such a device was called an automotive, automobile, locomotive, or fish torpedo; colloquially, a ''fish''. The term ''torpedo'' originally applied to a variety of devices, most of which would today be called Naval mine, mines. From about 1900, ''torpedo'' has been used strictly to designate a self-propelled underwater explosive device. While the 19th-century battleship had evolved primarily with a view to engagements between armored warships with naval artillery, large-caliber guns, the invention and refinement of torpedoes from the 1860s onwards allowed small torpedo boats and other lighter surface combatant, surface vessels, submarines/submersibles, even improvised fishing boats or frogmen, and later light aircraft, to destroy large ships wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ORP Odważny ship prefix
{{disambiguation ...
ORP may refer to: * Operational Ration Pack, UK military * Operational Readiness Plan * Operational Readiness Platform (ORP) * Orpington railway station, Bromley, England * O'Reilly Raceway Park at Indianapolis * Oxidation reduction potential in chemistry * , a Polish Navy The Polish Navy (; often abbreviated to ) is the Navy, naval military branch , branch of the Polish Armed Forces. The Polish Navy consists of 46 ships and about 12,000 commissioned and enlisted personnel. The traditional ship prefix in the Polish ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skarżysko-Kamienna
Skarżysko-Kamienna () is a city in northern Świętokrzyskie Voivodeship in south-central Poland by Kamienna (river), Kamienna river, to the north of Świętokrzyskie Mountains; one of the voivodship's major cities. Prior to 1928, it bore the name of ''Kamienna''; in less formal contexts usually only the first part of the name (''Skarżysko'') is used. It belongs to historic Polish province of Lesser Poland. Skarżysko-Kamienna is an important railroad junction, with two main lines (Kraków – Warsaw and Sandomierz – Koluszki) crossing there. History The present-day districts of Łyżwy and Nowy Młyn were the locations of Paleolithic industrial settlements, which are now archaeological sites, part of the Rydno Archaeological Reserve, consisting of several hundred former Paleolithic sites stretching from Skarżysko-Kamienna to Wąchock. The sites were discovered in 1923–1925. In 1173, the Wiec, knights' congress gathered in Milica village (now the town's district) led by Ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
White Eagle Museum
The White Eagle Museum () is a Polish military museum located in the town of Skarżysko-Kamienna in the central Świętokrzyskie Voivodeship, opened in 1969. Museum The museum has a large collection of Russian, Polish and German World War II and post-war military equipment. The military equipment is displayed in a permanent outdoor exhibition covering , and includes tanks, artillery pieces, armoured vehicles, rockets and aircraft. The museum also collects documents and historical materials relating to the history of the city and the region, and objects related to military history from World War II onwards. The museum is housed in the former residence of the superintendent of the Rejów foundry, which was built in 1836–1838. It houses exhibitions pertaining to local industry, including ''Państwowa Fabryka Amunicji'' (The National Ammunition Factory). During World War II, the munitions factory was taken over by the German company, HASAG, and used forced labour. Members of a local ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orp Odwazny 6 ship prefix
{{disambiguation ...
ORP may refer to: * Operational Ration Pack, UK military * Operational Readiness Plan * Operational Readiness Platform (ORP) * Orpington railway station, Bromley, England * O'Reilly Raceway Park at Indianapolis * Oxidation reduction potential in chemistry * , a Polish Navy The Polish Navy (; often abbreviated to ) is the Navy, naval military branch , branch of the Polish Armed Forces. The Polish Navy consists of 46 ships and about 12,000 commissioned and enlisted personnel. The traditional ship prefix in the Polish ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aluminium Alloy
An aluminium alloy ( UK/IUPAC) or aluminum alloy ( NA; see spelling differences) is an alloy in which aluminium (Al) is the predominant metal. The typical alloying elements are copper, magnesium, manganese, silicon, tin, nickel and zinc. There are two principal classifications, namely casting alloys and wrought alloys, both of which are further subdivided into the categories heat-treatable and non-heat-treatable. About 85% of aluminium is used for wrought products, for example rolled plate, foils and extrusions. Cast aluminium alloys yield cost-effective products due to their low melting points, although they generally have lower tensile strengths than wrought alloys. The most important cast aluminium alloy system is Al–Si, where the high levels of silicon (4–13%) contribute to give good casting characteristics. Aluminium alloys are widely used in engineering structures and components where light weight or corrosion resistance is required.I. J. Polmear, ''Light Alloys'', A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydronalium
Hydronalium is a family of aluminium-magnesium alloys. It is an alloy predominantly of aluminium, with between 1%-12% of magnesium as the primary alloying ingredient. It also includes a secondary addition of manganese, usually between 0.4%-1%. The Hydronalium alloys originated in Germany in the 1930s and are best known, at least by that name, in Eastern Europe. They were widely used for shipbuilding in Poland. There are many alloys within this family, one standard reference listing over twenty. Applications The alloy family is noted for its resistance to seawater corrosion. As such it is used in sheet form for boatbuilding and light shipbuilding. As castings it is used for marine fittings. The reliable strength of some grades is sufficient for aerospace use and so they are used for wetted components of seaplane aircraft, such as floats and propellers, where marine corrosion resistance is also needed. Some variants of the alloy are ductile enough to be drawn into wire. This ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jet Engine
A jet engine is a type of reaction engine, discharging a fast-moving jet (fluid), jet of heated gas (usually air) that generates thrust by jet propulsion. While this broad definition may include Rocket engine, rocket, Pump-jet, water jet, and hybrid propulsion, the term typically refers to an internal combustion airbreathing jet engine, air-breathing jet engine such as a turbojet, turbofan, ramjet, pulse jet engine, pulse jet, or scramjet. In general, jet engines are internal combustion engines. Air-breathing jet engines typically feature a Axial compressor, rotating air compressor powered by a turbine, with the leftover power providing thrust through the propelling nozzle—this process is known as the Brayton cycle, Brayton thermodynamic cycle. Jet aircraft use such engines for long-distance travel. Early jet aircraft used turbojet engines that were relatively inefficient for subsonic flight. Most modern subsonic jet aircraft use more complex High-bypass turbofan, high-bypas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polish Navy
The Polish Navy (; often abbreviated to ) is the Navy, naval military branch , branch of the Polish Armed Forces. The Polish Navy consists of 46 ships and about 12,000 commissioned and enlisted personnel. The traditional ship prefix in the Polish Navy is ORP (). Origins The Polish Navy has its roots in naval vessels that were largely employed on Poland's main rivers in defense of trade and commerce. During the Thirteen Years' War (1454–66), Thirteen Years' War (1454–66), a small force of ships that primarily operated on rivers and lakes saw real open sea battles for the first time. At the Battle of Vistula Lagoon, a combined fleet of the Crown of the Kingdom of Poland, Kingdom of Poland and the pro-Polish Prussian Confederation decisively defeated the navy of the Teutonic Knights, and secured permanent access to the Baltic Sea. In 1454, the maritime city of Gdańsk was re-incorporated to Poland after being previously Teutonic takeover of Danzig (Gdańsk), occupied by the Teut ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
