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K9 Thunder
The K9 Thunder is a South Korean 155 mm self-propelled howitzer designed and developed by the Agency for Defense Development and private corporations including Dongmyeong Heavy Industries, Kia Heavy Industry, Poongsan Corporation, and Samsung Aerospace Industries for the Republic of Korea Armed Forces, and is now manufactured by Hanwha Aerospace. K9 howitzers operate in groups with the K10 ammunition resupply vehicle variant. The entire K9 fleet operated by the ROK Armed Forces is now undergoing upgrades to K9A1, and a further upgrade variant K9A2 is being tested for production. As of 2022, the K9 series has had a 52% share of the global self-propelled howitzer market, including wheeled vehicles, since the year 2000. Development In the 1980s, the ROK Armed Forces came in need of a new artillery system to contest North Korean equipment. The armed forces operated M107 self-propelled guns and K55 self-propelled howitzers. However, they had shorter firing ranges compared to ...
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K10 Ammunition Resupply Vehicle
The K10 ammunition resupply vehicle (ARV) is an automatic ammunition resupply vehicle based on the chassis of K9 Thunder, sharing most of the components and characteristics. IFS concept study started in November 1998 by Samsung Aerospace Industries and Pusan National University. Its design began in February 2002 by Samsung Techwin (previously Samsung Aerospace Industries), the Agency for Defense Development, and the DTaQ (Defense Agency for Technology and Quality), The army declared its completion in October 2005. The first vehicle rolled out in November 2006, with a price tag of 2.68 billion KRW. It was assigned to the 1st Artillery Brigade of the Republic of Korea Army. South Korea became the first nation to operate such type of military equipment. The vehicle has a combat weight of , and can support a K9 team by carrying and resupplying 104 shells of 155 mm artillery ammunition and 504 units of charges under heavy fire. The vehicle is operated by a 3-person crew, requirin ...
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Self-propelled Howitzer
Self-propelled artillery (also called locomotive artillery) is artillery equipped with its own propulsion system to move toward its firing position. Within the terminology are the self-propelled gun, self-propelled howitzer, self-propelled mortar, and self-propelled rocket artillery. They are high-mobility vehicles, usually based on continuous tracks carrying either a large field gun, howitzer, mortar, or some form of rocket/missile launcher. They are usually used for long-range indirect bombardment support on the battlefield. In the past, self-propelled artillery has included direct-fire vehicles, such as assault guns and tank destroyers, which were typically well-armoured vehicles often based upon the chassis of a tank. In lieu of the standard tank's general-purpose main gun that fired both high-explosive and anti-tank ammunition, direct-fire vehicles had specialized roles, with assault guns providing close fire-support for infantry and tank destroyers mounting an anti-t ...
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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 and other components. 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 atmosph ...
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KH179 155 Mm Towed Howitzer
The KH179 ("Korean howitzer 1 (first) 79") is a South Korean 155 mm towed howitzer of length 39 calibers, designed and developed by the Agency for Defense Development (ADD) for the Republic of Korea Armed Forces, and is now manufactured by Hyundai WIA. Development The KH179 is a towed howitzer developed and produced by Kia Precision Industry (now Hyundai WIA) since 1983 for the purpose of replacing the U.S. M114A2 towed howitzer and enhancing artillery firepower. General characteristics The KH179 makes use of lightweight components (CN79 barrel, RM79 recoil buffer, and CG79 mount) and can be air-transported by CH-47 chinook helicopter and C-130 transport aircraft. In addition, performance improvements were made in range, reliability, and maintenance compared to conventional M114A2 howitzers operated by the South Korean military. The ammunition used in the KH179 is compatible with NATO 155 mm standard ammunition, but has significantly improved range and firepower. It is equi ...
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KH178 105 Mm Towed Howitzer
The KH178 ("Korean Howitzer 1 (First) 78") is a South Korean 105 mm 38 caliber towed howitzer. It was designed and developed by the Agency for Defense Development (ADD) for the Republic of Korea Armed Forces and manufactured by Hyundai WIA. History In 1976, the plan for a domestic 105 mm howitzer design was scrapped, and the factories began preparing for mass production of KM101A1 with assistance from the United States. In June, South Korea continued its development work by importing two newly introduced British 105mm L118 light guns (an air-portable towed howitzer) for evaluation. In 1977, the mass production of KM101 began and South Korea quickly boosted manufacturing capacity. In March 1978, South Korea obtained partial blueprints of the West German 105 mm lightweight howitzer and produced an operational sample, which contributed to the further development of the new howitzer. After a series of technical breakthroughs South Korea launched the developed KH178 105 mm howitzer t ...
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Koksan (artillery)
M-1978 Koksan (), a name used by US military analysts, known by its makers as the Chuch'ep'o (Juche Cannon; ), is a North Korean self-propelled gun based on the Type 59 tank chassis. Some guns were exported to Middle Eastern countries in the late 1980s and used during the Iran-Iraq War. The M-1989 Koksan variant has seen use in the Kursk offensive (2024–present). Development According to former ''Janes'' editor, Christopher F Foss, the Koksan is based on a Chinese Type 59 tank chassis, while Mitzer and Oliemans note the possibility of being a Soviet T-54/T-55 tank chassis instead. The 170 mm gun is in an open mount with no superstructure and is stabilized when firing by two large folding spades at the rear. It also has a multislotted muzzle brake (but no fume extractor) and probably a power rammer. Elevation and traverse appear to be powered, although gun traverse is very limited to avoid overstressing the chassis. The gun has a range that would allow it to strike Seo ...
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M109 Howitzer
The M109 is an American 155 mm turreted self-propelled howitzer, first introduced in the early 1960s to replace the M44 and M52. It has been upgraded a number of times, most recently to the M109A7. The M109 family is the most common Western indirect-fire support weapon of maneuver brigades of armored and mechanized infantry divisions. It has a crew of four: the section chief/commander, the driver, the gunner, and the ammunition handler/loader. The British Army replaced its M109s with the AS-90. Several European armed forces have or are currently replacing older M109s with the German PzH 2000. Upgrades to the M109 were introduced by the U.S. (see variants) and by Switzerland (KAWEST). With the cancellation of the U.S. Crusader, non-line-of-sight cannon and M1299 the M109A6 ("Paladin") will likely remain the principal self-propelled howitzer for the U.S. until a replacement enters service. Operational history The M109 was the medium variant of a U.S. program to adopt ...
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JoongAng Ilbo
''The JoongAng'', formerly known as ''JoongAng Ilbo'' (), is a South Korean daily newspaper published in Seoul, South Korea. It is one of the three biggest newspapers in South Korea, and a newspaper of record for South Korea. The paper also publishes an English edition, ''Korea JoongAng Daily'', in alliance with the ''International New York Times''. It is often regarded as the holding company of JoongAng Group ''chaebol'' (a spin-off from Samsung) as it is owner of various affiliates, such as the broadcast station and drama producing company JTBC, and movie theatres chain Megabox. History It was first published on September 22, 1965, by Lee Byung-chul, the founder of Samsung Group which once owned the Tongyang Broadcasting Company (TBC). In 1980, ''JoongAng Ilbo'' gave up TBC and TBC merged with KBS. ''JoongAng Ilbo'' is the pioneer in South Korea for the use of horizontal copy layout, topical sections, and specialist reporters with investigative reporting teams. Since Apri ...
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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 3,600,000 in 2022 (500,000 active and 3,100,000 reserve). According to Global Firepower as of 2025 the ROK military is ranked as the 5th most powerful military on the planet. The Republic of Korea Armed Forces traces its roots 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 South Korean government after the liberation of Korea in 1945, South Korea's military forces are responsible for maintaining the sovereignty and territorial integrity of the st ...
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Self-propelled Howitzer
Self-propelled artillery (also called locomotive artillery) is artillery equipped with its own propulsion system to move toward its firing position. Within the terminology are the self-propelled gun, self-propelled howitzer, self-propelled mortar, and self-propelled rocket artillery. They are high-mobility vehicles, usually based on continuous tracks carrying either a large field gun, howitzer, mortar, or some form of rocket/missile launcher. They are usually used for long-range indirect bombardment support on the battlefield. In the past, self-propelled artillery has included direct-fire vehicles, such as assault guns and tank destroyers, which were typically well-armoured vehicles often based upon the chassis of a tank. In lieu of the standard tank's general-purpose main gun that fired both high-explosive and anti-tank ammunition, direct-fire vehicles had specialized roles, with assault guns providing close fire-support for infantry and tank destroyers mounting an anti-t ...
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Hydropneumatic Suspension
Hydropneumatic suspension is a type of motor vehicle suspension system, invented by Paul Magès, produced by Citroën, and fitted to Citroën cars, as well as being used under licence by other car manufacturers. Similar systems are also widely used on modern tanks and other large military vehicles. The suspension was referred to as ' in early literature, pointing to oil and air as its main components. The purpose of this system is to provide a sensitive, dynamic and high-capacity suspension that offers superior ride quality on a variety of surfaces. A hydropneumatic system combines the advantages of hydraulic systems and pneumatic systems so that gas absorbs excessive force and liquid in hydraulics directly transfers force. The suspension system usually features both self-leveling and driver-variable ride height, to provide extra clearance in rough terrain. This type of suspension for automobiles was inspired by the pneumatic suspension used for aircraft landing gear, which wa ...
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