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Furrer M25
The ''Leichtes Maschinengewehr Modell 1925'' (shortened to Lmg 25) is a Swiss recoil operated light machine gun designed by Colonel Adolf Furrer of Waffenfabrik Bern in the 1920s and produced from 1925 to the 1960s. It was the first machine gun in the Swiss Army that could be carried by a man. It takes the 7.5 mm Swiss Service cartridge from a 30-round box magazine and has a cyclic rate of fire of about 500 rounds-per-minute. In 1957, the LMG 25 was replaced by the Stgw 57-Assault rifle. Overview The Lmg 25 operates toggle-lock firing system, similar to the Luger P08 pistol. The manufacturing company is the Waffenfabrik Bern, the designer was Colonel Adolf Furrer, the (then) director of the Waffenfabrik Bern. The Lmg 25 was lighter than the water-cooled machine guns of the time, but was also more complicated design, making it difficult to manufacture and raising its price. In contrast to the Luger P08, the toggle lock of the Lmg 25 is not bent by a control curve, but by a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Light Machine Gun
A light machine gun (LMG) is a light-weight machine gun designed to be operated by a single infantryman, with or without an assistant, as an infantry support weapon. LMGs firing cartridges of the same caliber as the other riflemen of the same combat unit are often referred to as squad automatic weapons. Characteristics While early light machine guns fired full-powered rifle cartridges, modern light machine guns often fire smaller-caliber rifle cartridges than medium machine guns – generally the same intermediate cartridge fired by a service's standard assault rifle – and are usually lighter and more compact. Some LMGs, such as the Russian RPK, are modifications of existing designs and designed to share the same ammunition. Adaptations to the original rifle generally include a larger magazine, a heavier barrel to resist overheating, a more robust mechanism to support sustained fire and a bipod. A light machine gun is also defined by its usage as well as its specificati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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. 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 atmospheric pressure allowing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Machine Guns Of Switzerland
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 components a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Folding Stock
A gunstock or often simply stock, the back portion of which is also known as a shoulder stock, a buttstock or simply a butt, is a part of a long gun that provides structural support, to which the barrel, action, and firing mechanism are attached. The stock also provides a means for the shooter to firmly brace the gun and easily aim with stability by being held against the user's shoulder when shooting the gun, and helps to counter muzzle rise by transmitting recoil straight into the shooter's body. The tiller of a crossbow is functionally the equivalent of the stock on a gun. History and etymology The term stock in reference to firearms dates to 1571 is derived from the Germanic word ''Stock'', meaning tree trunk, referring to the wooden nature of the gunstock. Early hand cannons used a simple stick fitted into a socket in the breech end to provide a handle. The modern gunstock shape began to evolve with the introduction of the arquebus, a matchlock with a longer barrel a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IMFT 6 2015 613
IMFT may refer to: * IM Flash Technologies IM Flash Technologies, LLC was the semiconductor company founded in January 2006, by Intel Corporation and Micron Technology, Inc. IM Flash produced 3D XPoint used in data centers and high end computers. It had a 300mm wafer fab in Lehi, Utah, Un ..., a semiconductor company founded in 2006, by Intel Corporation and Micron Technology, Inc. * Institut de Mécanique des Fluides de Toulouse, a joint research laboratory founded in 1920, specializing the physics of flows. {{Disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Second World War
World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing military alliances: the Allies and the Axis powers. World War II was a total war that directly involved more than 100 million personnel from more than 30 countries. The major participants in the war threw their entire economic, industrial, and scientific capabilities behind the war effort, blurring the distinction between civilian and military resources. Aircraft played a major role in the conflict, enabling the strategic bombing of population centres and deploying the only two nuclear weapons ever used in war. World War II was by far the deadliest conflict in human history; it resulted in 70 to 85 million fatalities, mostly among civilians. Tens of millions died due to genocides (including the Holocaust), starvation, ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Submachine Gun
A submachine gun (SMG) is a magazine-fed, automatic carbine designed to fire handgun cartridges. The term "submachine gun" was coined by John T. Thompson, the inventor of the Thompson submachine gun, to describe its design concept as an automatic firearm with notably less firepower than a machine gun (hence the prefix " sub-"). As a machine gun must fire rifle cartridges to be classified as such, submachine guns are not considered machine guns. The submachine gun was developed during World War I (1914–1918) as a close quarter offensive weapon, mainly for trench raiding. At its peak during World War II (1939–1945), millions of SMGs were made for use by regular troops, clandestine commandos and partisans alike. After the war, new SMG designs appeared frequently.Military Small Arms Of The 20th Century. Ian Hogg & John Weeks. Krause Publications. 2000. p93 However, by the 1980s, SMG usage decreased. Today, submachine guns have been largely replaced by assault rifles, w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Karabiner Modell 1931
The Karabiner Modell 1931 (K. 31/Kar. 31/Mq. 31) is a magazine-fed, straight-pull bolt-action rifle. It was the standard issue rifle of the Swiss armed forces from 1933 until 1958 though examples remained in service into the 1970s. It has a 6-round removable magazine, and is chambered for the 7.5×55mm Swiss ''Gewehrpatrone 1911'' or GP 11, a cartridge with ballistic qualities similar to the 7.62×51mm NATO/.308 Winchester cartridge. Each rifle included a 6-round detachable box magazine with matching stamped serial number. A stripper clip can be used to load the magazine from the top of the receiver. The Karabiner Modell 1931 replaced both the Model 1911 rifle and carbine and was gradually replaced by the Stgw 57 from 1958 onwards. Although the K. 31/Kar. 31 is a straight-pull carbine broadly based on previous Swiss "Schmidt–Rubin" service rifles and carbines, the K. 31/Kar. 31 was not designed by Colonel Rudolf Schmidt (1832–1898) as he was not alive in 1931 to do so. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Light Infantry
Light infantry refers to certain types of lightly equipped infantry throughout history. They have a more mobile or fluid function than other types of infantry, such as heavy infantry or line infantry. Historically, light infantry often fought as Reconnaissance, scouts, Raid (military), raiders, and skirmisher, skirmishers. These are loose formations that fight ahead of the main army to harass, delay, disrupt supply lines, engage the enemy’s own skirmishing forces, and generally "soften up" an enemy before the main battle. Light infantrymen were also often responsible for Screening (tactical), screening the main body of a military formation. Post-World War II, the term "light infantry" evolved to include rapid-deployment units (including commandos and Airborne forces, airborne units) that emphasize speed and mobility over armor and firepower. Some units or battalions that historically held a skirmishing role have kept their designation "light infantry" for the sake of traditi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Machine Guns
A machine gun is a fully automatic, rifled autoloading firearm designed for sustained direct fire with rifle cartridges. Other automatic firearms such as automatic shotguns and automatic rifles (including assault rifles and battle rifles) are typically designed more for firing short bursts rather than continuous firepower, and are not considered true machine guns. As a class of military kinetic projectile weapon, machine guns are designed to be mainly used as infantry support weapons and generally used when attached to a bipod or tripod, a fixed mount or a heavy weapons platform for stability against recoils. Many machine guns also use belt feeding and open bolt operation, features not normally found on other infantry firearms. Machine guns can be further categorized as light machine guns, medium machine guns, heavy machine guns, general purpose machine guns and squad automatic weapons. Similar automatic firearms of caliber or more are classified as autocannons, rat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Waffenfabrik Bern
''Waffenfabrik Bern'' (Weapons Factory Bern), also known as W+F Bern, was an arms manufacturer in Bern, Switzerland, which was a government-owned corporation producing firearms for the Swiss Armed Forces. List of W+F weapons *Vetterli rifle *Schmidt M1882 - 1882 revolver. Chambered in 7.5 Swiss Ordnance *Schmidt–Rubin - 1889 straight-pull bolt-action rifle. Chambered in 7.5×53.5 Swiss. * Swiss Mannlicher M1893 - straight-pull bolt-action rifle designed by Ferdinand Mannlicher. Chambered in 7.5×53.5 Swiss. *Schmidt–Rubin - 1896 straight-pull bolt-action rifle. Chambered in 7.5×53.5 Swiss. *Schmidt–Rubin - 1896/11 straight-pull bolt-action rifle. Chambered in 7.5×55 Swiss. *Schmidt–Rubin - 1911 straight-pull bolt-action rifle. Chambered for the revamped 7.5×53.5 Swiss. The case was lengthened to 55 mm. This new load became the 7.5×55 Swiss. The new load used a modern spitzer bullet and more modern smokeless powders and produces a much higher velocity and pre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II
World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing military alliances: the Allies and the Axis powers. World War II was a total war that directly involved more than 100 million personnel from more than 30 countries. The major participants in the war threw their entire economic, industrial, and scientific capabilities behind the war effort, blurring the distinction between civilian and military resources. Aircraft played a major role in the conflict, enabling the strategic bombing of population centres and deploying the only two nuclear weapons ever used in war. World War II was by far the deadliest conflict in human history; it resulted in 70 to 85 million fatalities, mostly among civilians. Tens of millions died due to genocides (including the Holocaust), starvation, ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
