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G5 Howitzer
The G5 is a South African towed howitzer of 155 mm calibre developed in South Africa by Denel Land Systems. The G5 design was based on the Canadian GC-45 howitzer, GC-45 155 mm gun which was highly modified to suit southern African conditions. Production history During the South African Border War, Angolan Bush War, the South African Defence Force found itself at a disadvantage when facing opponents equipped with long-range Soviet Katyusha rocket launchers, which outranged South Africa's World War II-era BL 5.5-inch Medium Gun, 5.5-inch (140 mm) howitzers by a considerable margin. This led to the issue of a staff requirement for a new artillery system as well as ammunition systems, gun tractor, fire control equipment and a fire control computer system. From 1963, South Africa had been placed under a United Nations sponsored anti-apartheid arms embargo that led to the creation of the indigenous Armscor (South Africa), Armscor military-industrial company to circumvent the arm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Howitzer
The howitzer () is an artillery weapon that falls between a cannon (or field gun) and a mortar. It is capable of both low angle fire like a field gun and high angle fire like a mortar, given the distinction between low and high angle fire breaks at 45 degrees or 800 mils (NATO). With their long-range capabilities, howitzers can be used to great effect in a battery formation with other artillery pieces, such as long-barreled guns, mortars, and rocket artillery. Howitzers were valued for their ability to fire explosive shells and incendiary materials into fortifications. Unlike mortars, which had fixed firing angles, howitzers could be fired at various angles, providing greater flexibility in combat. Throughout the 18th and 19th centuries, howitzers evolved to become more mobile and versatile. The introduction of rifling in the mid-19th century led to significant changes in howitzer design and usage. By the early 20th century, howitzers were classified into different categor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soltam M-71
The M-71 is a 155 mm 39 caliber towed howitzer manufactured by Israeli company Soltam Systems. Design The weapon was based on the earlier Soltam M-68 and uses the same recoil system, breech and carriage but had a longer gun barrel (39 calibre versus 33 calibre of M-68). It is fitted with a compressed air-driven rammer to permit rapid and easy loading at all angles of elevation as well as having a rechargeable battery mounted on the right trail for auxiliary power. It can fire a high-explosive shell up to a maximum range of at a muzzle velocity of . Deployment In addition to Israel, this weapon is in service with Chile, Singapore, Thailand, Philippines, South Africa, Slovenia and Myanmar. A version of this weapon was developed to mount on a modified Centurion chassis (M-72), but this vehicle never reached production. Operators * *: 18 *: 60 howitzers used by the Chilean Army, 36 Soltam M-68s acquired in the 1970s later upgraded to Soltam M-71 standard and 24 Soltam M- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
T-72
The T-72 is a family of Soviet Union, Soviet main battle tanks that entered production in 1973. The T-72 was a development based on the T-64 using thought and design of the previous Object 167M. About 25,000 T-72 tanks have been built, and refurbishment has enabled many to remain in service for decades. It has been widely exported and has seen service in 40 countries and in numerous conflicts. The Russian T-90 introduced in 1992 and the Chinese Type 99 tank, Type 99 are further developments of the T-72. Production and development of various modernized T-72 models continues today. Development Development from the T-64 The T-72 was a product of a rivalry between design teams. Kharkiv Morozov Machine Building Design Bureau, Morozov KB was led by Alexander Alexandrovich Morozov, Alexander Morozov in Kharkiv. Uralvagonzavod, Uralvagon KB was led by Leonid Kartsev in Nizhny Tagil. To improve on the T-62, two designs based on the tank were tested in 1964: Nizhny Tagil's Object 167 (T- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oman
Oman, officially the Sultanate of Oman, is a country located on the southeastern coast of the Arabian Peninsula in West Asia and the Middle East. It shares land borders with Saudi Arabia, the United Arab Emirates, and Yemen. Oman’s coastline faces the Arabian Sea to the southeast and the Gulf of Oman on the northeast. The exclaves of Madha and Musandam Governorate, Musandam are surrounded by the United Arab Emirates on their land borders, while Musandam’s coastal boundaries are formed by the Strait of Hormuz and the Gulf of Oman. The capital and largest city is Muscat. With a population of approximately 5.46 million and an area of 309,500 km2 (119,500 sq mi), Oman is the Countries with highest population, 123rd most-populous country. From the 18th century, the Omani Sultanate was Omani Empire, an empire, competing with the Portuguese Empire, Portuguese and British Empire, British empires for influence in the Persian Gulf and the Indian Ocean. At its peak in the 19th ce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United Arab Emirates
The United Arab Emirates (UAE), or simply the Emirates, is a country in West Asia, in the Middle East, at the eastern end of the Arabian Peninsula. It is a Federal monarchy, federal elective monarchy made up of Emirates of the United Arab Emirates, seven emirates, with Abu Dhabi serving as its capital. It shares land borders with Oman to the east and northeast, and with Saudi Arabia to the southwest; as well as maritime borders in the Persian Gulf with Qatar and Iran, and with Oman in the Gulf of Oman. , the UAE has an estimated population of over 10 million, of which 11% are Emiratis; Dubai is List of cities in the United Arab Emirates, its most populous city and is an international hub. Islam is the State religion, official religion and Arabic is the official language, while English is the most spoken language and the language of business. The United Arab Emirates Oil reserves in the United Arab Emirates, oil and natural gas reserves are the world's List of countries by pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
G6 Howitzer
The G6, sometimes denoted as the G6 ''Rhino'', is a South African self-propelled howitzer. It was developed as a turreted, self-propelled variant of the G5 howitzer series, mating the gun to a six-wheeled mine-protected armoured chassis. Design work on the G6 began in the late 1970s to replace the obsolescent Sexton being retired from service with the artillery regiments of the South African Army. Serial production commenced between 1988 and 1999. At the time of its introduction, the G6 was considered one of the most mobile self-propelled howitzers in service. Its chassis was engineered to be mine-resistant and blastproof, allowing it to survive multiple TM-46 detonations during trials. The G6 was conceived as a wheeled rather than a tracked vehicle for this purpose, as well as to allow it to deploy long distances by road without consuming excessive quantities of fuel or requiring a tank transporter. G6s entered service during the last two years of the South African Border ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Four Wheel Drive
The Four Wheel Drive Auto Company, more often known as Four Wheel Drive (FWD), was a pioneering American company that developed and produced all-wheel drive vehicles. It was founded in 1909 in Clintonville, Wisconsin, as the Badger Four-Wheel Drive Auto Company by Otto Zachow and William Besserdich.Borth, Christy. ''Masters of Mass Production''. Indianapolis, Ind.: Bobbs-Merrill Co., 1945, pp. 210-14. The first production facility was built in 1911 and was designed by architect Wallace W. DeLong of Appleton, Wisconsin. FWD renamed FWD Corporation and its associates Seagrave, Baker Aerialscope, and Almonte Fire Trucks were sold in 2003 to an investment group headed by former American LaFrance executive James Hebe. Today, the Seagrave Fire Apparatus group is a flagship company of ELB Capital Management. History Zachow and Besserdich developed and built their first successful four-wheel drive (4x4) car, the "Battleship", in 1908. Its success led to the founding of the company. " ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Land Systems OMC
Land Systems OMC is a South African company that produces a range of armoured vehicles which have been successfully exported and are in service with, amongst others, the U.S., Canadian and South African militaries. It is a division of Denel SOC LTD, located in Benoni, Gauteng. The OMC segment of the name is the initialism under which the Olifant Manufacturing Co. of South Africa was most commonly known during its existence. The original company was established specifically for the task of creating the Olifant tank for the South African Army. Ownership Reunert OMC's existence as an independent company was short-lived however, and early into its life it was taken over by Reunert, which subsequently turned it into a division called Reumech OMC. It was under this name that OMC saw its most prolific level of vehicle development, as combat operations during the Angolan Bush War necessitated a greater need for vehicle systems capable of being integrated with the very swift, flexible, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Base Bleed
Base bleed or base burn (BB) is a system used on some artillery shells to increase range, typically by about 20%–35%. It expels gas into the low-pressure area behind the shell to reduce Drag (physics), base drag (but does not produce thrust, unlike rocket-assisted projectile, rocket-assisted projectiles). Being percentage-based, the range extension is more useful on longer-range artillery where an increase of approximately can be achieved, and it also was found that the reduced turbulence gave the projectiles a more consistent trajectory, resulting in tighter grouping, and efficient shelling more than away. Base bleed technology was developed in Sweden in the mid-1960s but took some time to spread and find its niche between cheaper classical ordnance and even more expensive rocket-assisted projectiles. It is now a fairly common option. Function Most (50–60%) of the drag (physics), drag on an artillery shell derives from the nose portion of the shell. Artillery shells ... [...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] |
Auxiliary Power Unit
An auxiliary power unit (APU) is a device on a vehicle that provides energy for functions other than propulsion. They are commonly found on large aircraft and naval ships as well as some large land vehicles. Aircraft APUs generally produce 115 V AC voltage at 400 Hz (rather than 50/60 Hz in mains supply), to run the electrical systems of the aircraft; others can produce 28 V DC voltage. APUs can provide power through single or three-phase systems. A jet fuel starter (JFS) is a similar device to an APU but directly linked to the main engine and started by an onboard compressed air bottle. Transport aircraft History During World War I, the British Coastal class blimps, one of several types of airship operated by the Royal Navy, carried a ABC auxiliary engine. These powered a generator for the craft's radio transmitter and, in an emergency, could power an auxiliary air blower. One of the first military fixed-wing aircraft to use an APU was the British, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Poudreries Réunies De Belgique
Poudreries Réunies de Belgique SA (or PRB) was one of Belgium's oldest and largest manufacturers of munitions, once the second-largest Belgian armaments manufacturer. The company indirectly started in 1778 in Wetteren as a gunpowder factory. By its 200th anniversary in 1979 it had 73 factories throughout the world, with the headquarters in Brussels. PRB finally became bankrupt in 1993 after being demilitarised in 1990 with parts sold to the Luchaire Defense SA, part of Giat Industries (now known as AFAIR Société Nouvelle PRB SA) History The history of PRB revolves around its production sites in Belgium. Production was located in 6 sites, Matagne, Clermont-Sous-Huy, Clermont, Vivegnis (Wallonia), Mechelen, Kaulille and Balen, with mine related production at Matagne (components), Kaulille (explosives) and Balen (filling). * 1778, Jan-Frans Cooppal established a gunpowder factory at Wetteren. * 1796, Wetteren factory closed by French. * 1815, Wetteren factory restarted after Batt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
