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QJZ-171
The QJZ-171, also known as the Type 171 heavy machine gun, is a Chinese heavy machine gun designed and manufactured by Norinco for the People's Liberation Army. It fires a type of specialized 12.7×108mm light-weight ammunition. The weapon is intended to replace the QJZ-89 heavy machine gun. Description The QJZ-171 is designed as an ultra-lightweight heavy machine gun, similar to American XM312 and XM806. The whole system, including the tripod, weighs , in which the gun weighs and the tripod weighs . The gun features a free-floating barrel, improved muzzle brake, composite ammo belt with new lightweight ammunition, and titanium alloy gun parts to reduce recoil and weight. The machine gun is fitted with its own bipod attached to the receiver, and can be carried by one infantry or served by a crew of two. Ammo containers are made of plastic composites to reduce weight. The machine gun is an open-bolt and gas-operated mechanism with a rotating bolt. The hybrid short recoil sys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
M2 Browning
The M2 machine gun or Browning .50 caliber machine gun (informally, "Ma Deuce") is a heavy machine gun that was designed towards the end of World War I by John Browning. Its design is similar to Browning's earlier M1919 Browning machine gun, which was chambered for the .30-06 cartridge. The M2 uses Browning's larger and more powerful .50 BMG (12.7 mm) cartridge. The design has had many designations; the official U.S. military designation for the current infantry type is Browning Machine Gun, Cal. .50, M2, HB, Flexible. It is effective against infantry, unarmored or lightly armored vehicles and boats, light fortifications, and low-flying aircraft. The gun has been used extensively as a vehicle weapon and for aircraft armament by the United States since the 1930s. It was heavily used during World War II, the Korean War, the Vietnam War, the Falklands War, the Soviet–Afghan War, the Gulf War, the Iraq War, and the War in Afghanistan. It is the primary heavy machine gun of NA ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
QJZ-89
The QJZ-89, also known as the Type 89 heavy machine gun, is a heavy machine gun designed in the People's Republic of China and fires the Soviet 12.7×108mm ammunition. History In the early 1980s, Chinese firearms designers received scattered information from Soviet publications regarding the Soviet Union's adoption of a new heavy machine gun called the NSV. Chinese weapons industry misconstrued gun weight data of as the whole system weight due to a translation error. Astonished by the misinterpreted capability of the NSV, Chinese designers began to develop a comparable weapon system. Only after the development ended did they realized the weight figure didn't include the tripod. The weapon features a hybrid gas and recoil operated action. The gas system cycles the bolt group with the receiver recoils inside the outer gun housing to decrease peak recoil. The gun uses a direct impingement gas system, similar to Type 85 machine gun. Type 89 was named "lightweight heavy machine gu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heavy Machine Gun
A heavy machine gun (HMG) is significantly larger than light, medium or general-purpose machine guns. HMGs are typically too heavy to be man-portable (carried by one person) and require mounting onto a weapons platform to be operably stable or tactically mobile, have more formidable firepower, and generally require a team of personnel for operation and maintenance. There are two generally recognized classes of weapons identified as HMGs. The first are weapons from World War I identified as "heavy" due to the weight and cumbersomeness of the weapons themselves, which prevents infantrymen from transporting on foot, such as the M1917 Browning machine gun. The second are large-caliber ( 12.7×99mm, 12.7×108mm, 14.5×114mm, or larger) machine guns, pioneered by John Browning with the M2 machine gun, designed to provide increased effective range, penetration and destructive power against covers, vehicles, aircraft and light buildings/fortifications beyond the standard-caliber ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Titanium Alloy
Titanium alloys are alloys that contain a mixture of titanium and other chemical elements. Such alloys have very high tensile strength and toughness (even at extreme temperatures). They are light in weight, have extraordinary corrosion resistance and the ability to withstand extreme temperatures. However, the high cost of both raw materials and processing limit their use to military applications, aircraft, spacecraft, bicycles, medical devices, jewelry, highly stressed components such as connecting rods on expensive sports cars and some premium sports equipment and consumer electronics. Although "commercially pure" titanium has acceptable mechanical properties and has been used for orthopedic and dental implants, for most applications titanium is alloyed with small amounts of aluminium and vanadium, typically 6% and 4% respectively, by weight. This mixture has a solid solubility which varies dramatically with temperature, allowing it to undergo precipitation streng ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Machine Guns Of The People's Republic Of China
A machine is a physical system using power to apply forces and control movement to perform an action. The term is commonly applied to artificial devices, such as those employing engines or motors, but also to natural biological macromolecules, such as molecular machines. Machines can be driven by animals and people, by natural forces such as wind and water, and by chemical, thermal, or electrical power, and include a system of mechanisms that shape the actuator input to achieve a specific application of output forces and movement. They can also include computers and sensors that monitor performance and plan movement, often called mechanical systems. Renaissance natural philosophers identified six simple machines which were the elementary devices that put a load into motion, and calculated the ratio of output force to input force, known today as mechanical advantage. Modern machines are complex systems that consist of structural elements, mechanisms and control com ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kord Machine Gun
The Kord-12.7 mm heavy machine gun is a Russian design that entered service in 1998 replacing the older NSV machine gun. Externally the weapon resembles the NSV; however, the internal mechanism has been extensively reworked, changing from a horizontally pivoting breech block to a rotating bolt design. Additionally the gas system has been changed and the muzzle baffle redesigned. These changes give the weapon reduced recoil compared with the NSV, allowing greater accuracy during sustained fire. Development The catalyst for the development of the weapon was a complete lack of any heavy machine guns in construction at that time in the Russian Federation. Prior to the dissolution of the Soviet Union, the weapon that had functioned as the heavy machine gun was the NSV, or "Utes" or "Utjos" ("утёс", meaning ''one lonely cliff'' in Russian, this name was its designation during development) machine gun. The main production centre for the NSV was located in what is now Kazakhst ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NSV Machine Gun
The NSV (Russian НСВ Никитина-Соколова-Волкова), also known as the «Utyos» (Project: ''Lonely Cliff''), is a 12.7mm caliber heavy machine gun of Soviet origin, named after the designers, G. I. Nikitin (Г. И. Никитин), Y. S. Sokolov (Ю. М. Соколов) and V. I. Volkov (В. И. Волков). It was designed to replace the DShK machine gun and was adopted by the Soviet Army in 1971. It is no longer being produced in Russia; the manufacturing license for the NSV ended up in Kazakhstan after the break-up of the Soviet Union. The NSV has been manufactured in Bulgaria, India, Poland and Yugoslavia under license. The NSV weighs , has a rate of fire of 700–800 rounds per minute, and an effective range from to against airborne and ground targets, respectively. A loaded ammunition belt with 50 rounds weighs . The NSVT version is used on the T-72, T-64 and T-80 tanks. The new Kord machine gun has replaced worn-out NSVs in some countries. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LWMMG
The Lightweight Medium Machine Gun (LWMMG) is a prototype machine gun being developed first by General Dynamics, later by LoneStar Future Weapons, now by True Velocity Design The LWMMG is designed to fill the gap between 7.62 mm and .50 BMG machine guns. The weapon uses the .338 Norma Magnum round, giving it greater lethality and double the range of the 7.62 NATO round. The LWMMG has a rate of fire of 500 rounds per minute, an effective range of 1,700 meters (1,860 yards), and a maximum range of 5,642 meters (6,170 yards). It weighs 24 pounds (10.8 kg), making it only slightly heavier than the M240L, and lighter than the M240B. The .338NM bullet has over of muzzle energy and is four times more powerful than the 7.62 NATO at 1,000 meters. An individual round is twice as heavy (45.5 grams compared to 24 grams), as are each belt link (8 grams compared to 4 grams). For each weapon to fire for one minute, the standard LWMMG weighing plus a belt of 500 .338NM rounds woul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
QJS-161
The QJS-161 (), also known as the QJB-201, is a Chinese light machine gun designed and manufactured by Norinco for the People's Liberation Army. Design and development The QJS-161 features two types of barrel varied in length, presumably for different requirements from the PLA Ground Force and the PLAAF Airborne Corps. As an open-bolt machine gun, the QJS-161 uses 5.8×42mm ammunition that can feed either from a disintegrating belt in fabric container loaded into the feed port on the left side of the weapon, or a standard Chinese 5.8×42mm box magazine inserted vertically into the magazine well at the bottom of the weapon, and the non-reciprocating charging handle is located on its right. A picatinny rail is located behind the short dust cover above the feeding port. The squad automatic machine gun features weight reduction design, such as lightweight material for the body and detachable box magazine made of fabric, reducing the weight to less than when empty. The side-fold ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Muzzle Brake
A muzzle brake or recoil compensator is a device connected to, or a feature integral to the construction of, the muzzle or barrel of a firearm or cannon that is intended to redirect a portion of propellant gases to counter recoil and unwanted muzzle rise. Barrels with an integral muzzle brake are often said to be ported. The concept of a muzzle brake was first introduced for artillery. It was a common feature on many anti-tank guns, especially those mounted on tanks, in order to reduce the area needed to take up the strokes of recoil and kickback. They have been used in various forms for rifles and pistols to help control recoil and the rising of the barrel that normally occurs after firing. They are used on pistols for practical pistol competitions, and are usually called compensators in this context.STI article on Limcat Underga ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Free-floating Barrel
A free-floating barrel is a firearm design used in precision rifles, particularly match grade benchrest rifles, to accurize the weapon system. With conventional rifles, the gun barrel rests in contact with the fore-end of the gunstock, sometimes along the whole length. If the stock is manufactured from wood, environmental conditions or operational use may warp the wood, which may also cause the barrel to shift its alignment slightly over time, altering the projectile's external ballistics and thus the point of impact. Contact between the barrel and the stock also interferes with the natural frequency of the barrel, which can have a detrimental effect on accuracy especially when the barrel gets hot with repeated firing. The interference of the stock with the barrel's oscillation harmonics as the bullet passes down the bore can cause the barrel to vibrate inconsistently from shot to shot, depending on the external forces acting upon the stock at the time of the shot. Mic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Norinco
China North Industries Group Corporation Limited, doing business internationally as Norinco Group (North Industries Corporation), and known within China as China Ordnance Industries Group Corporation Limited (), is a Chinese state-owned defense corporation that manufactures a diverse range of commercial and military products. Norinco Group is one of the world's largest defense contractors. The company's subsidiary, China North Industries Corporation (), or simply Norinco, markets Norinco Group's products internationally, and is also involved in domestic civil construction and military defense projects. History Established in 1980 with the approval of the State Council of China, Norinco is an enterprise group engaged in both products and capital operation, integrated with research and development, manufacturing, marketing and services. Norinco mainly deals with defense products, petroleum & mineral resources development, international engineering contracting, optronic products, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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