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M1 Abrams
The M1 Abrams () is a third-generation American main battle tank designed by Chrysler Defense (now General Dynamics Land Systems) and named for General Creighton Abrams. Conceived for modern armored ground warfare, it is one of the heaviest tanks in service at nearly . It introduced several modern technologies to the United States armored forces, including a multifuel turbine engine, sophisticated Chobham composite armor, a computer fire control system, separate ammunition storage in a blowout compartment, and NBC protection for crew safety. Initial models of the M1 were armed with a 105 mm M68 gun, while later variants feature a license-produced Rheinmetall 120 mm L/44 designated M256. The M1 Abrams was developed from the failed joint American- West German MBT-70 project that intended to replace the dated M60 tank. There are three main operational Abrams versions: the M1, M1A1, and M1A2, with each new iteration seeing improvements in armament, protecti ... [...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 or simply tank,Ogorkiewicz 2018 p222 is a tank that fills the role of armour-protected direct fire and maneuver in many modern armies. Cold War-era development of more powerful engines, better suspension systems and lighter composite armour allowed for the design of a tank that had the firepower of a super-heavy tank, the armour protection of a heavy tank, and the mobility of a light tank, in a package with the weight of a medium tank. The first ''designated'' MBT was the British Chieftain (tank), Chieftain tank, which during its development in the 1950s was re-designed as an MBT. Throughout 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 armoured fighting vehicles. Main battle tanks are a key component of modern armies.Main battle tank#House1984, House (1984), ''Toward Combined Arms Warfare: A Surve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yemeni Civil War (2014–present)
Yemeni civil war may refer to several conflicts which have taken place in Yemen: * North Yemen civil war, 1962–1970 * South Yemen civil war The South Yemeni crisis, colloquially referred to in Yemen as the events of '86, was a failed coup d'etat and brief civil war which took place on January 13, 1986, in South Yemen. The civil war developed as a result of ideological differences, ..., 13–25 January 1986 * Yemeni civil war (1994) * Yemeni civil war (2014–present), ongoing See also * Insurgency in Yemen (other) * List of wars involving Yemen * Yemen war (other) * Yemeni coup d'état (other) * Yemeni revolution (other) {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
M256 (tank Gun)
The M256 is an American 120 mm smoothbore tank gun. It is a licensed-built German-designed Rheinmetall Rh-120 L44 gun tube and combustible cartridges with an American-designed mount, cradle and recoil mechanism. It is primarily used by the M1 Abrams main battle tank. Origins A number of considerations had led the U.S. Army and its contractors to favor the Army's standard M68 105 mm gun over Germany's 120 mm Rheinmetall Rh-120 smoothbore gun for the XM1 Abrams. To begin with, the 105 mm gun was "the smallest, lightest, and least costly gun adequate for the job."This is the testimony of Brigadier General Philip L. Bolte, Deputy Commanding General of the U.S. Army's Testing and Evaluation Command, before the Investigations Subcommittee of the House Committee on Armed Services in April 1978; ''Army Reprogramming Request No. 78-14 P/A, FRG Smooth Bore 120-MM Gun and XM-1 Tank'', 95th Cong., 2d Sess., p. 30. Indeed, new kinetic energy ammunition for the wea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rifling
Rifling is the term for helical grooves machined into the internal surface of a firearms's barrel for imparting a spin to a projectile to improve its aerodynamic stability and accuracy. It is also the term (as a verb) for creating such grooves. The opposite of rifling is smoothbore. Rifling is measured in ''twist rate'', the distance the rifling takes to complete one full revolution, expressed as a ratio with 1 as its base (e.g., 1:). A shorter distance/lower ratio indicates a faster twist, generating a higher spin rate (and greater projectile stability). The combination of length, weight, and shape of a projectile determines the twist rate needed to gyroscopically stabilize it: barrels intended for short, large-diameter projectiles such as spherical lead balls require a very low twist rate, such as 1 turn in 48 inches (122 cm). Barrels intended for long, small-diameter projectiles, such as the ultra-low-drag 80-grain 0.223 inch bullets (5.2 g, 5.56&nb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
M68 (tank Gun)
The M68 is an American 105 mm tank gun. It uses British-designed L7 gun tube and cartridges with an American-designed mount, breech assembly and recoil mechanism. Technical characteristics The M68 differs from the L7 in several aspects : *The M68 uses a concentric recoil spring instead of a separate buffer and recuperator hydraulic cylinders. *The M68 has a cylindrical breech with a vertical sliding breech block instead of a square-shaped breech with a horizontal sliding breech block. *Firing is electrical only. *The M68 barrel is secured to the breech by a tapered pin and interrupted breech threads which allow the barrel to be removed from the gun shield without having to dismantle the mantlet. *The M68 is fitted with an eccentric bore evacuator instead of a concentric model in order to provide more clearance over the rear deck. *The M68 chamber has a difference in the length of its shoulder, producing a different diametral taper near the freebore. History The main gu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Composite Armor
Composite armour is a type of vehicle armour consisting of layers of different materials such as metals, plastics, ceramics or air. Most composite armours are lighter than their all-metal equivalent, but instead occupy a larger volume for the same resistance to penetration. It is possible to design composite armour stronger, lighter and less voluminous than traditional armour, but the cost is often prohibitively high, restricting its use to especially vulnerable parts of a vehicle. Its primary purpose is to help defeat high-explosive anti-tank (HEAT) projectiles. HEAT had posed a serious threat to armoured vehicles since its introduction in World War II World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo .... Lightweight and small, HEAT projectiles could nevertheless penetrate hundred ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
M1 Assault Breacher Vehicle
The M1 Abrams () is a List of main battle tanks by generation, third-generation American main battle tank designed by Chrysler Defense (now General Dynamics Land Systems) and named for General Creighton Abrams. Conceived for modern Armoured warfare, armored ground warfare, it is one of the heaviest tanks in service at nearly . It introduced several modern technologies to the United States armored forces, including a multifuel gas turbine, turbine engine, sophisticated Chobham armour, Chobham composite armor, a computer fire control system, separate ammunition storage in a Blowout panel, blowout compartment, and CBRN defense, NBC protection for crew safety. Initial models of the M1 were armed with a 105 mm calibre, 105 mm M68 (tank gun), M68 gun, while later variants feature a license-produced Rheinmetall Rh-120, Rheinmetall 120 mm L/44 designated M256 (tank gun), M256. The M1 Abrams was developed from the failed joint American-West Germany, West German MBT-70 project ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Detroit Arsenal Tank Plant
Detroit Arsenal (DTA), formerly Detroit Arsenal Tank Plant (DATP) was the first manufacturing plant ever built for the mass production of tanks in the United States. Established in 1940 under Chrysler, the plant was owned by the U.S. government until 1996. It was designed by architect Albert Kahn. The building was designed originally as a "dual production facility", so that it could make armaments and be turned into peaceful production at war's end. Notwithstanding its name, the site was located in Warren, Michigan, Detroit's most populous suburb. History Chrysler's construction effort at the plant in 1941 was one of the fastest on record. The first tanks rumbled out of the plant before its complete construction. During World War II, the Detroit Arsenal Tank Plant built a quarter of the 89,568 tanks produced in the U.S. overall. The plant made M3 Lee tanks while the buildings were still being raised and switched to M4 Sherman tanks in 1942. The Korean War boosted production ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Defense Logistics Agency
The Defense Logistics Agency (DLA) is a combat support agency in the United States Department of Defense, United States Department of Defense (DoD). The agency is staffed by more than 26,000 civilian and military personnel throughout the world. Located in 48 states and 28 countries, DLA provides supplies to the military services and supports their acquisition of weapons, fuel, repair parts, and other materials. The agency also disposes of excess or unusable equipment through various programs. Through other Federal government of the United States, U.S. federal agencies, DLA also provides relief supplies to victims of natural disasters and humanitarian aid to refugees and internally displaced persons. Structure DLA is headquartered in Fort Belvoir, Virginia. It contains numerous offices responsible for supporting the overall agency. The agency has several major subordinate activities operating in the field: * DLA Aviation, headquartered in Richmond, Virginia, primarily supplies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lima Army Tank Plant
The Joint Systems Manufacturing Center, also known as the Lima Army Tank Plant (LATP) is a tank plant located in Lima, Ohio. It is a government-owned, contractor-operated facility currently operated by General Dynamics Land Systems. Workers at the plant are represented by UAW Local 2075. History 1940s In May 1942 construction began for Lima Army Tank Plant to manufacture centrifugal casting (industrial), centrifugally cast gun tubes in the steel foundry. This manufacturing method was rendered obsolete, so the army converted it to a tank depot for modifying and processing combat vehicles for export and domestic shipping. In November 1942, a GM subsidiary, United Motors Services, took over operation of the plant to process vehicles under government contract. The plant prepared many vehicles for Europe, including the M3 Stuart, M5 light tank and the M26 Pershing#T25 and M26, M26 Pershing tank. 1950s After World War II, as the Lima Ordnance Depot, the plant served as a receiving ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
General Dynamics Land Systems
General Dynamics Land Systems (GDLS) is an American manufacturer of military vehicles, including tanks and light Armoured fighting vehicle, armored fighting vehicles. The company is based in Sterling Heights, Michigan, and is a subsidiary of General Dynamics. It was originally established in 1982 following the acquisition of Chrysler#Chrysler Defense, Chrysler Defense. GDLS is known for developing and manufacturing vehicles such as the M1 Abrams tank, Stryker, and LAV 6. History In February 1982 Chrysler announced the sale of Chrysler Defense, its profitable defense subsidiary, to General Dynamics for US$348.5 million. The sale was completed in March 1982 for the revised figure of US$336.1 million and renamed General Dynamics Land Systems. Under this newly formed division, General Dynamics would take over production of the M60 tank, M60 and M1 Abrams, M1 tanks for the United States Army. In 1985, 3 years after the sale from Chrysler, General Dynamics production plants in Ohio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chrysler Defense
FCA US, LLC, doing business as Stellantis North America and known historically as 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. Stellantis North America sells vehicles worldwide under the Chrysler, Dodge, Jeep, and Ram Trucks nameplates. It also includes Mopar, its automotive parts and accessories division, and SRT, its performance automobile division. The division also distributes Alfa Romeo, Fiat, and Maserati vehicles in North America. The original Chrysler Corporation was founded in 1925 by Walter Chrysler from the remains of the Maxwell Motor Company. In 1998, it merged with Daimler-Benz, which renamed itself DaimlerChrysler but in 2007 sold off its Chrysler stake. The company operated as Chrysler LLC through 2009, then as Chrysler Group LLC. In 2014, it was acquired by Fiat S.p.A.; it subsequently opera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
