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105×617mmR
The 105×617mm (4.1 inch) also known as 105×617mmR is a common, NATO-standard, tank gun cartridge used in 105mm guns such as those derived from the Royal Ordnance L7. The 105×617mmR cartridge was originally developed from the calibre Ordnance QF 20-pounder 84 × 618R cartridge as part of the development of the L7 105 mm rifled gun. Ammunition Armour-piercing discarding sabot (APDS) Armour-piercing fin-stabilized discarding sabot (APFSDS) There are different ways to measure penetration value. NATO uses the 50% (This means that 50% of the shell had to go through the plate), while the Soviet/Russian standard is higher (80% had to go through). According to authorities like Paul Lakowski, the difference in performance can reach as much as 8% [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Ordnance L7
The Royal Ordnance L7, officially designated Gun, 105 mm, Tank, L7, is the basic model of the United Kingdom's most successful tank gun. The L7 is a 105 mm L/52 rifled design by the Royal Ordnance Factories intended for use in armoured fighting vehicles, replacing the earlier QF 20-pounder (84 mm) tank gun mounted on the Centurion tank. The successful L7 gun has been fitted on many armoured vehicles including the British Centurion (starting from the Mk. 5/2 variant), the German Leopard 1 and several variants of the US MBTs M48 Patton and M60 in an altered design, the M68. The L7 is a popular weapon and continued in use even after it was superseded by the L11 series 120 mm rifled tank gun, for some Centurion tanks operating as Artillery Forward Observation and Armoured Vehicle, Royal Engineers (AVRE) vehicles. The L7, and adaptations of it, can be found as standard or retrofitted equipment on a wide variety of tanks developed during the Cold War. History Both the U ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
105 Mm Modèle F1
The Canon de 105 mm modèle F1 (or CN-105-F1) is a French 105 mm tank gun used with the AMX-30. History The CN 105 F1 was designed at the end of the 1950s by the arsenal of Bourges (EFAB) under the project name D1512, its development was completed in 1962 and the gun was registered as 105 Mle 62 (an abbreviated version of ''105 mm 1962 Model'') which in turn took the designation of CN 105 F1 after being fitted with its armored gun mantlet. As the French Army was relying on the OCC 105 F1 (''obus G'') as main as its only armor-piercing ammunition at that time, the rifling of CN 105 F1 gun barrel was given a relatively slow twist of one turn in 25 calibers to minimise the spin imparted to the High-explosive anti-tank, HEAT projectile, but this made it unsuitable for firing APDS, although compatible with all other types of NATO 105×617mm ammunition such as Armour-piercing fin-stabilized discarding sabot, APFSDS, the OFL 105 F1 being the first French-made APFSDS and was fiel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
M68 (tank Gun)
The M68 is an American 105 mm tank gun. It uses a 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. Models *M68 : initial production variant, used on the original variant of the M60 tank and the M116 gun mount. Retrofitted to the M48A5. *M68E1 : ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United Kingdom
The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and Northern Ireland. The United Kingdom includes the island of Great Britain, the north-eastern part of the island of Ireland, and many smaller islands within the British Isles. Northern Ireland shares a land border with the Republic of Ireland; otherwise, the United Kingdom is surrounded by the Atlantic Ocean, the North Sea, the English Channel, the Celtic Sea and the Irish Sea. The total area of the United Kingdom is , with an estimated 2020 population of more than 67 million people. The United Kingdom has evolved from a series of annexations, unions and separations of constituent countries over several hundred years. The Treaty of Union between the Kingdom of England (which included Wales, annexed in 1542) and the Kingdom of Scotland in 170 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Santa Bárbara Sistemas
Santa Bárbara Sistemas is a Spanish defense contractor based in Madrid, integrated under the ''European Land Systems'' of General Dynamics. It is one of the primary suppliers of the Military of Spain and is responsible for the assembly of heavy vehicles such as the Spanish Army's Leopard 2E main battle tank and the Pizarro infantry combat vehicle. The primary lines of business of Santa Bárbara Sistemas are armoured vehicles, special and amphibious vehicles, weapons systems, munitions and missiles, and Research & Development. The company is delivering the prototypes of the UK's Scout SV AFV through General Dynamics in the UK. General Dynamics acquired the company from the Spanish government 25 July 2001. History Santa Bárbara Sistemas was founded in 1960 by bringing together factories of the Spanish Ministry of Defense under the ''Instituto Nacional de Industria''. These included arsenals in Seville, Oviedo, and Trubia. Santa Bárbara Sistemas was denationationalised by Spain ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Artillery
Artillery is a class of heavy military ranged weapons that launch munitions far beyond the range and power of infantry firearms. Early artillery development focused on the ability to breach defensive walls and fortifications during sieges, and led to heavy, fairly immobile siege engines. As technology improved, lighter, more mobile field artillery cannons developed for battlefield use. This development continues today; modern self-propelled artillery vehicles are highly mobile weapons of great versatility generally providing the largest share of an army's total firepower. Originally, the word "artillery" referred to any group of soldiers primarily armed with some form of manufactured weapon or armor. Since the introduction of gunpowder and cannon, "artillery" has largely meant cannons, and in contemporary usage, usually refers to shell-firing guns, howitzers, and mortars (collectively called ''barrel artillery'', ''cannon artillery'', ''gun artillery'', or - a layman t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type 15 Tank
The Type 15 (, also designated ZTQ-15), nicknamed the Black Panther (), is a Chinese third generation light tank operated by the People's Liberation Army Ground Force and People's Liberation Army Navy Marine Corps. It could become a successor to the Type 62 light tank that was retired from the Chinese army in 2013. Development Sightings of Type 15 were reported by Chinese citizens in July 2018, however its existence was formally confirmed by the Chinese Ministry of Defense in December 2018. The tank was confirmed to be in service by 2018 and was showcased in the 70th National Day parade on October 1, 2019. Design Overview The Type 15 is designed to fulfill the requirement for a lighter, more mobile modern tank that can effectively operate in highland/plateau, woodland and water-rich regions where the heavier Type 99 and Type 96 main battle tanks might have difficulties traversing. In the high altitude region like Tibet, the air becomes thin and engines start to lose power. He ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hexolite
RDX (abbreviation of "Research Department eXplosive") or hexogen, among other names, is an organic compound with the formula (O2N2CH2)3. It is a white solid without smell or taste, widely used as an explosive. Chemically, it is classified as a nitroamine alongside HMX, which is a more energetic explosive than TNT. It was used widely in World War II and remains common in military applications. RDX is often used in mixtures with other explosives and plasticizers or phlegmatizers (desensitizers); it is the explosive agent in C-4 plastic explosive. It is stable in storage and is considered one of the most energetic and brisant of the military high explosives, with a relative effectiveness factor of 1.60. Name RDX is also known, but less commonly, as cyclonite, hexogen (particularly in Russian, French, German and German-influenced languages), T4, and, chemically, as cyclotrimethylenetrinitramine. In the 1930s, the Royal Arsenal, Woolwich, started investigating cyclonite to use aga ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
White Phosphorus
Elemental phosphorus can exist in several allotropes, the most common of which are white and red solids. Solid violet and black allotropes are also known. Gaseous phosphorus exists as diphosphorus and atomic phosphorus. White phosphorus White phosphorus, yellow phosphorus or simply tetraphosphorus () exists as molecules made up of four atoms in a tetrahedral structure. The tetrahedral arrangement results in ring strain and instability. The molecule is described as consisting of six single P–P bonds. Two crystalline forms are known. The α form is defined as the standard state of the element, but is actually metastable under standard conditions. It has a body-centered cubic crystal structure, and transforms reversibly into the β form at 195.2 K. The β form is believed to have a hexagonal crystal structure. White phosphorus is a translucent waxy solid that quickly becomes yellow when exposed to light. For this reason it is also called yellow phosphorus. It glows greenish ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zinc Oxide
Zinc oxide is an inorganic compound with the formula . It is a white powder that is insoluble in water. ZnO is used as an additive in numerous materials and products including cosmetics, food supplements, rubbers, plastics, ceramics, glass, cement, lubricants, paints, ointments, adhesives, sealants, pigments, foods, batteries, ferrites, fire retardants, and first-aid tapes. Although it occurs naturally as the mineral zincite, most zinc oxide is produced synthetically. ZnO is a wide-band gap semiconductor of the II-VI semiconductor group. The native doping of the semiconductor due to oxygen vacancies or zinc interstitials is n-type. Other favorable properties include good transparency, high electron mobility, wide band gap, and strong room-temperature luminescence. Those properties make ZnO valuable for a variety of emerging applications: transparent electrodes in liquid crystal displays, energy-saving or heat-protecting windows, and electronics as thin-film transistors and lig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hexachloroethane
Hexachloroethane, also known as perchloroethane is the organochlorine compound with the chemical formula . It is white solid at room temperature with a camphor-like odor. It has been used by the military in smoke compositions, such as base-eject smoke munitions (smoke grenades). Manufacture Chlorination of tetrachloroethylene at 100–140 °C with the presence of ferric chloride is the most commonly used commercial production method, however several other methods exist. A high purity form can be produced in a small scale by reacting chlorine together with barium carbide. In September 1997, it was reported as no longer being produced in the United States for commercial distribution, but was produced as a by-product of industrial chlorination process. : Applications Hexachloroethane has been used in the formulation of extreme pressure lubricants. It has also been used as a chain transfer agent in the emulsion polymerization of propylene tetrafluoroethylene copolymer. Hexac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
High-explosive Squash Head
High explosive squash head (HESH) in British terminology, or high explosive plastic/plasticized (HEP) in American terminology, is a type of explosive projectile which uses a plastic explosive that conforms to the surface of a target before detonating, to improve the transfer of explosive energy to the target. Squash head projectiles are similar to high explosive projectiles and are well suited to many of the same targets. However, while HESH projectiles are not armour-piercing, they can defeat armored targets by causing spall which can injure or kill a vehicle's occupants, and detonate some types of ammunition. Design Function HESH rounds are thin metal shells filled with inert material (like coal-tar pitch), plastic explosive and a delayed-action base fuze. On impact, the inert material, followed by plastic explosive, is "squashed" against the surface of the target and spreads out to form a disc or "pat" of explosive. The inert material helps prevent premature detonation of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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