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K1A1
The K1 is a South Korean main battle tank designed by Chrysler Defense (later General Dynamics Land Systems) and Hyundai Precision Industry (later Hyundai Rotem) for the Republic of Korea Armed Forces. The vehicle's design was based on Chrysler's M1 Abrams together with some proven subsystems from M60A3. The K1A1 is an upgunned variant with a 120 mm 44 caliber smoothbore gun, and outfitted with more modern electronics, ballistic computers, fire control systems, and armor. Hyundai Rotem produced 1,511 K1 and K1A1 tanks between 1986 and 2010. Development In the early 1970s, South Korea received an intelligence report about North Korea locally producing Soviet T-62 tanks. Meanwhile, the U.S. 7th Infantry Division began withdrawing from South Korea from 1969 to 1971 under the Nixon Doctrine. South Korean President Park Chung-hee requested the latest variant of M60 tanks to maintain the balance of power. However, the United States responded by transferring used M48 tanks an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rheinmetall 120 Mm Gun
The Rheinmetall Rh-120 is a 120 mm smoothbore tank gun designed and produced in former West Germany by the Rheinmetal-DeTec AG company, it was developed in response to Soviet advances in armour technology and development of new armoured threats. Production began in 1974, with the first version of the gun, known as the ''L/44'' as it was 44 calibres long, used on the German Leopard 2 tank and soon produced under license for the American M1A1 Abrams and other tanks. The gun has a length of , and the gun system weighs approximately . By 1990, the L/44 was not considered powerful enough to defeat future Soviet armour, which stimulated an effort by Rheinmetall to develop a better main armament. This first involved a tank gun named ''Neue Panzerkanone 140'' ('new tank gun 140'), but later turned into a compromise which led to the development of an advanced 120 mm gun, the L/55, based on the same internal geometry as the L/44 and installed in the same breech and mount. The L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rheinmetall Rh-120
The Rheinmetall Rh-120 is a 120 mm smoothbore tank gun designed and produced in former West Germany by the Rheinmetal-DeTec AG company, it was developed in response to Soviet advances in armour technology and development of new armoured threats. Production began in 1974, with the first version of the gun, known as the ''L/44'' as it was 44 calibres long, used on the German Leopard 2 tank and soon produced under license for the American M1A1 Abrams and other tanks. The gun has a length of , and the gun system weighs approximately . By 1990, the L/44 was not considered powerful enough to defeat future Soviet armour, which stimulated an effort by Rheinmetall to develop a better main armament. This first involved a tank gun named ''Neue Panzerkanone 140'' ('new tank gun 140'), but later turned into a compromise which led to the development of an advanced 120 mm gun, the L/55, based on the same internal geometry as the L/44 and installed in the same breech and mount. The L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Korea
South Korea, officially the Republic of Korea (ROK), is a country in East Asia, constituting the southern part of the Korea, Korean Peninsula and sharing a Korean Demilitarized Zone, land border with North Korea. Its western border is formed by the Yellow Sea, while its eastern border is defined by the Sea of Japan. South Korea claims to be the sole legitimate government of the entire peninsula and List of islands of South Korea, adjacent islands. It has a Demographics of South Korea, population of 51.75 million, of which roughly half live in the Seoul Capital Area, the List of metropolitan areas by population, fourth most populous metropolitan area in the world. Other major cities include Incheon, Busan, and Daegu. The Korean Peninsula was inhabited as early as the Lower Paleolithic period. Its Gojoseon, first kingdom was noted in Chinese records in the early 7th century BCE. Following the unification of the Three Kingdoms of Korea into Unified Silla, Silla and Balhae in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyundai Rotem
Hyundai Rotem (founded in 1977) is a South Korean company that manufactures rolling stock, defense products and plant equipment. It is a part of the Hyundai Motor Group. Its name was changed from Rotem to Hyundai Rotem in December 2007 to reflect the parent company. History The company was founded in 1977. In 1999, the company changed its name to Korea Rolling Stock Corporation (KOROS) as a result of the merging between three major rolling stock divisions: Hanjin Heavy Industries, Daewoo Heavy Industries and Hyundai Precision & Industries. The company subsequently changed its name to Railroading Technology System, or Rotem, on 1 January 2002. It adopted its current name in December 2007 to reflect its current owner. Hyundai Rotem currently employs 3,800 people and exports to 50 countries worldwide. Railway products Notable projects include supplying most of South Korea's rolling stock, which include Korail's KTX high speed trains, electric multiple units (EMUs), and elect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agency For Defense Development
The Agency for Defense Development (ADD) is the South Korean national agency for research and development in defense technology, funded by the Defense Acquisition Program Administration (DAPA). It was established in August 1970 under the banner of the self-reliable defense. Its purpose is contributing to enforcing the national defence, to improving the national R&D capacity, and to fostering the domestic defense industry. ADD focuses on core weapons systems and core technology development, and studies major weapons platforms in high-risk and non-economical fields, unmanned and advanced, and new weapon systems for the future. ADD is responsible for first South Korean ballistic missile Nike Hercules Korea-1 aka White/Polar Bear, developed in the 1970s with its first successful test in 1978. ADD is the operator of South Korea's first dedicated military satellite, ANASIS-II, launched on 20 July 2020 by a Falcon 9 rocket. Organization Audit department * Director * Defense indus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ZF Friedrichshafen
ZF Friedrichshafen AG, also known as ZF Group, originally ''Zahnradfabrik Friedrichshafen'', and commonly abbreviated to ZF (ZF = "Zahnradfabrik" = "Cogwheel Factory"), is a German car parts maker headquartered in Friedrichshafen, in the south-west German state of Baden-Württemberg. Specialising in engineering, it is primarily known for its design, research and development, and manufacturing activities in the automotive industry. It is a worldwide supplier of driveline and chassis technology for cars and commercial vehicles, along with specialist plant equipment such as construction equipment. It is also involved in rail, marine, defense and aviation industries, as well as general industrial applications. ZF has 241 production locations in 41 countries with approximately 148,000 (2019) employees. ZF Friedrichshafen is more than 90% owned by the Zeppelin Foundation, which is largely controlled by the town of Friedrichshafen. History The company was founded in 1915 in Friedri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Water-cooled
Cooling tower and water discharge of a nuclear power plant Water cooling is a method of heat removal from components and industrial equipment. Evaporative cooling using water is often more efficient than air cooling. Water is inexpensive and non-toxic; however, it can contain impurities and cause corrosion. Water cooling is commonly used for cooling automobile internal combustion engines and power stations. Water coolers utilising convective heat transfer are used inside high-end personal computers to lower the temperature of CPUs. Other uses include the cooling of lubricant oil in pumps; for cooling purposes in heat exchangers; for cooling buildings in HVAC and in chillers. Mechanism Advantages Water is inexpensive, non-toxic, and available over most of the earth's surface. Liquid cooling offers higher thermal conductivity than air cooling. Water has unusually high specific heat capacity among commonly available liquids at room temperature and atmospheric pressure allowing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turbocharged
In an internal combustion engine, a turbocharger (often called a turbo) is a forced induction device that is powered by the flow of exhaust gases. It uses this energy to compress the intake gas, forcing more air into the engine in order to produce more power for a given engine displacement, displacement. The current categorisation is that a turbocharger is powered by the kinetic energy of the exhaust gasses, whereas a supercharger is mechanically powered (usually by a belt from the engine's crankshaft). However, up until the mid-20th century, a turbocharger was called a "turbosupercharger" and was considered a type of supercharger. History Prior to the invention of the turbocharger, forced induction was only possible using mechanically-powered superchargers. Use of superchargers began in 1878, when sev ...[...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] |
Chrysler
Stellantis North America (officially FCA US and formerly Chrysler ()) is one of the " Big Three" automobile manufacturers in the United States, headquartered in Auburn Hills, Michigan. It is the American subsidiary of the multinational automotive company Stellantis. In addition to the Chrysler brand, Stellantis North America sells vehicles worldwide under the Dodge, Jeep, and Ram nameplates. It also includes Mopar, its automotive parts and accessories division, and SRT, its performance automobile division. The original Chrysler Corporation was founded in 1925 by Walter Chrysler from the remains of the Maxwell Motor Company. It was acquired by Daimler-Benz, which in 1998 renamed itself DaimlerChrysler. After Daimler divested Chrysler in 2007, the company operated as Chrysler LLC (2007–2009) and Chrysler Group LLC (2009–2014) before being acquired by Fiat S.p.A. and becoming a subsidiary of the newly formed Fiat Chrysler Automobiles ("FCA") in 2014. Chrysler in 2021 is a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Main Battle Tank
A main battle tank (MBT), also known as a battle tank or universal tank, is a tank that fills the role of armor-protected direct fire and maneuver in many modern armies. Cold War-era development of more powerful engines, better suspension systems and lighter-weight composite armor allowed the design of a tank that had the firepower of a super-heavy tank, the armor protection of a heavy tank, and the mobility of a light tank, in a package with the weight of a medium tank. Through the 1960s and 1970s, the MBT replaced almost all other types of tanks, leaving only some specialist roles to be filled by lighter designs or other types of armored fighting vehicles. Main battle tanks are a key component of modern armies.#House1984, House (1984), ''Toward Combined Arms Warfare: A Survey of 20th-Century Tactics, Doctrine, and Organization'' Modern MBTs seldom operate alone, as they are organized into armoured units that include the support of infantry, who may accompany the tanks in inf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Republic Of Korea Armed Forces
The Republic of Korea Armed Forces (), also known as the ROK Armed Forces, are the armed forces of South Korea. The ROK Armed Forces is one of the largest and most powerful standing armed forces in the world with a reported personnel strength of 3,305,000 in 2020 (555,000 active and 2,750,000 reserve). As a result of its size and equipment, it is ranked the 6th most powerful military on the planet by the Global Firepower Index as of 2022. The Republic of Korea Armed Forces traces its root back to the establishment of the Korean Republic in 1919 wherein its armed wing was called the Korean Liberation Army and it conducted warfare against the Japanese occupation by conducting large-scale offensives, assassinations, bombings, sabotage, and search and rescue missions. Formally founded in 1948, following the establishment of the Republic of Korea’s government after the liberation of Korea in 1945. South Korea's military forces are responsible for maintaining the sovereignty and ter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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