It is based on principles similar to those of the homopolar motor. 7741 - Super 40mm High Explosive Air Burst - Shaping the Future, Mrs. Kara Sims, General Dynamics - OTS Plausability of combustion light-gas guns replacing conventional guns in the future? A combustion light gas gun (CLGG) uses low molecular weight gas, such as hydrogen mixed with oxygen, as propellant. Combustion Light Gas Gun LIU Ning, ZHANG Xiang-yan (School of Mechanical engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China) Abstract: The combustion light gas gun (CLGG) is the launching system which uses low Conventional guns use solid propellants, usually nitrocellulose-based compounds, to develop the chamber pressures needed to accelerate the projectiles. Electrothermal-chemical (ETC) technology is an attempt to increase accuracy and muzzle energy of future tank, artillery, and close-in weapon system guns by improving the predictability and rate of expansion of propellants inside the barrel. Light gas guns are designed to reach higher muzzle velocities than combustion guns. The gases are ignited, burn, expand and propel the projectile out of the barrel with higher efficiency relative to solid propellant and have achieved higher muzzle velocities in experiments. A shell is a payload-carrying projectile that, as opposed to shot, contains an explosive or other filling, though modern usage sometimes includes large solid projectiles properly termed shot. It is a highly specialized gun designed to generate extremely high velocities. The light-gas gun is an apparatus for physics experiments, a highly specialized gun designed to generate very high velocities. The gun is a ranged weapon typically designed to pneumatically discharge solid projectiles but can also be liquid or even charged particles and may be free-flying or tethered. Early artillery development focused on the ability to breach defensive walls and fortifications during sieges, and led to heavy, fairly immobile siege engines. This gun was in operation until 1994 when the larger 3.3-inch gun was installed and the older 2.5 inch gun became the Range I launcher. The CLGG, like the railgun, is a possible candidate technology for greater ranges for naval systems, among others. The combustible gas mixture is … A tank gun is the main armament of a tank. 2 2H. When the gases are ignited, they burn, expand and propel the projectile out of the barrel with higher efficiency relative to solid propellant and have achieved higher muzzle velocities in experiments. Find link is a tool written by Edward Betts.. searching for Combustion light-gas gun 1 found (4 total) alternate case: combustion light-gas gun Railgun (12,676 words) no match in snippet view article find links to article for development as military weapons. Developed Combustion Light Gas Gun (CLGG) for US Navy and continued research and development of materials processing technologies and commercial products 1994 to 1997 Received funding from Missile Defense Agency to develop high-velocity and high-energy gun technology advancements 1989 to 1993 It has a far more efficient use of the propellant, unlike earlier recoilless weapons, where most of the propellant is expended to the rear of the weapon to counter the recoil of the projectile being fired. It enables a much larger projectile to be launched without the heavy equipment typically required for large caliber weapons. Another issue is the survival of projectile payloads at higher accelerations. The expansion piston in turn drives the pump piston housed within the pump tube by means of a rod connecting the two pistons. A gas ignition gun, also known as combustion light-gas gun, utilizes the explosive force of low molecular-weight combustible gases, such as hydrogen mixed with oxygen, as propellant.When the gases are ignited, they burn, expand and propel the projectile out of the barrel with higher efficiency relative to solid propellant, allowing it to achieve greater ranges and muzzle velocities. Combustion light-gas gun technology is one of the areas being explored in an attempt to achieve higher velocities from artillery to gain greater range. The wiki article says that muzzle velocities of 3 km/s are achivable, but that they have a poor accuracy at artillery ranges. CLGG’s gaseous propellants are able to increase the propellant's specific impulse. A railgun is a device, typically designed as a weapon, that uses electromagnetic force to launch high velocity projectiles. The initial Range G configuration was a 2.5-inch bore, two-stage, light-gas gun firing into a 10-foot-diameter test tank 1,000-feet in length. A combustion light-gas gun (CLGG) is a projectile weapon that utilizes the explosive force of low molecular-weight combustible gases, such as hydrogen mixed with oxygen, as propellant. To simulate orbital debris impacts on spacecraft, NASA launches projectiles through light-gas guns at speeds up to 8,500 m/s (28,000 ft/s). During this time, the research has shown that the technology provides a minimum of 30 more muzzle energy than advanced solid propellent guns which translates to significant advantages in range andor throw weight. Conventional guns use solid propellants, usually nitrocellulose-based compounds, to develop the chamber pressures needed to accelerate the projectiles. Combustion light gas gun technology is one of the areas being explored in an attempt to achieve higher velocities from artillery to gain greater range. The combustion light gas gun (CLGG) is an advanced launching system with potentially extremely high muzzle velocity, in which the projectile is propelled by the combustion expansion of a low molecular weight combustible gas mixture [ 1 ]. Another light gas gun, the Combustion Light Gas Gun in a 155 mm prototype form was projected to achieve 2500 m/s with The Combustion Light Gas Gun, or CLGG, has been investigated for over ten years. The light-gas gun is an apparatus for physics experiments. Higher velocity weapons, like the CLGG, face these engineering challenges as they edge the boundaries of firing accelerations higher. The main problem with a light-gas gun is that you need a supply of both gunpowder to drive the piston and the light gas (hydrogen or helium) to … This is an important, but not the only, factor affecting theperformance of a fuel. Hot Network Questions Variance with muzzle velocities affects precision in range, and the further a weapon shoots, the more significant these variances become. 2. UTRON has built and tested 45mm and 155mm combustion light gas guns. The knowledge of material properties involved in impact situations is critical in different technological areas in order to guarantee safe operations. While this technology does appear to provide higher velocities, the main drawback with gaseous or liquid propellants for gun systems is the difficulty in getting uniform and predictable ignition and muzzle velocities. Higher velocity weapons, like the CLGG, face these engineering challenges as they edge the boundaries of firing accelerations higher. As technology improved, lighter, more mobile field artillery cannons developed for battlefield use. The railgun uses a pair of parallel conductors (rails), along which a sliding armature is accelerated by the electromagnetic effects of a current that flows down one rail, into the armature and then back along the other rail. 2. GoatPenis, Combustion Light Gas Gun (Glgg) from Depleted Ammunition.TOTAL WAR In an airgun, the large piston is powered by a spring or compressed air, and the working fluid is atmospheric air. 0 - Classic Hydrogen Reaction. The size and shape of the muzzle flash is dependent on the combustion energy of propellant being used, the amount of combustible ejecta remaining, and any devices attached to the muzzle. 2 + O. A combustion light gas gun (CLGG) is a projectile weapon that utilizes the explosive force of low molecular-weight combustible gases, such as hydrogen mixed with oxygen, as propellant. Ballistics is the field of mechanics concerned with the launching, flight behavior and impact effects of projectiles, especially ranged weapon munitions such as bullets, unguided bombs, rockets or the like; the science or art of designing and accelerating projectiles so as to achieve a desired performance. It is thought to be possible to achieve non-rocket spacelaunch with this technology. The CLGG, like the railgun, is a possible candidate technology for greater ranges for naval systems, among others. 1.0 caliber, .50 caliber, and .17 caliber two stage light gas guns are housed in the Remote Hypervelocity Test Laboratory. 2H. The high-low system allows the weight of the weapon and its ammunition to be significantly reduced. Another issue is the survival of projectile payloads at higher accelerations. Combustion Gun: Light weight, Portable, Cheap, Reusable, Easy to make, World's first most light weight and transparent yet powerful gun ! 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. These types of guns are also called hypervelocity guns since the projectile travels at more than Mach 5 (1500 m/s at sea level). A combustion light-gas gun (CLGG) is a projectile weapon that utilizes the explosive force of low molecular-weight combustible gases, such as hydrogen mixed with oxygen, as propellant. Common propellants are energetic materials and consist of a fuel like gasoline, jet fuel, rocket fuel, and an oxidizer. In artillery, caliber or calibre is the internal diameter of a gun barrel, or by extension a relative measure of the length. This is NOT AN OFFICIAL SCHOLARLY DOCUMENT! How to make powered armor viable as a substitute for guns? The hollow interior of the barrel is called the bore, and the diameter of the bore is called its caliber, usually measured in inches or millimetres. 6349 - The Combustion Light Gas Gun: A novel yet proven high velocity technology, Mr. David Kruczynski, UTRON, Inc. Fuel Cells for Munitions, Mr. Edgar Seydel, Th e Ashlawn Group 6332 - Plasma-Enchanced Magnetron Technology for Durable Pollution-Free Coatings, Dr. Sabrina Lee , … If an artillery system cannot maintain uniform and predictable muzzle velocities it will be of no use at longer ranges. Internal ballistics, a subfield of ballistics, is the study of the propulsion of a projectile. Heats of combustion can be measured in several different ways and thismakes it difficult to find a consistent set of values for variousfuels. Muzzle velocity is the speed of a projectile with respect to the muzzle at the moment it leaves the end of a gun's barrel. A light-gas gun works on the same principle as a spring piston airgun. The term is unique to the United States and is generally not used in other English-speaking countries, which initially used proprietary names such as "Ballistite" and "Cordite" but gradually shifted to "propellant" as the generic term. Solid shot may contain a pyrotechnic compound if a tracer or spotting charge is used. Manufacturing cost and production time are drastically lower than for standard cannon or other small-arm weapon systems firing a projectile of the same size and weight. A combustion light gas gun (CLGG) is a projectile weapon that utilizes the explosive force of low molecular-weight combustible gases, such as hydrogen mixed with oxygen, as propellant. Two-stage light gas gun design The high pressure second section is 3.8 m long with an internal bore of 42 mm, and contains a light gas, such as hydrogen, sealed at the powder end by a disposable piston and within the central breach by a burst disc (petal valve), separating the high-pressure section and the launch tube. The expansion tube contains a close-fitting expansion piston that is propelled by an explosive charge. Mathematical equations of motion are used to analyze projectile trajectories. The projectile normally does not contain explosives, instead relying on the projectile's high speed and kinetic energy to inflict damage. Why are my soldiers weapons so ineffective, or the rarity of one-hit kills. The \"heat of combustion\" of a fuelis a measure of the amount of energyreleased when the fuel isburned. Dynamite guns were in use for a brief period from the 1880s to the beginning of the twentieth century. In order to better understand the interior ballistic process of CLGG, an multidimensional combustion and … Combustion Light Gas Gun (CLGG)[11]. A large-diameter piston is used to force a gaseous working fluid through a smaller-diameter barrel containing the projectile to be accelerated. The blast and flash are caused by the combustion products of the gunpowder, and any remaining unburned powder, mixing with the ambient air. 2 + O. From the 1860s to 1950s, a major application of armor-piercing projectiles was to defeat the thick armor carried on many warships. 4. A combustion light-gas gun (CLGG) is a projectile weapon that utilizes the explosive force of low molecular-weight combustible gases, such as hydrogen mixed with oxygen, as propellant. Anti-aircraft guns can also be mounted to tanks. The research and development firm UTRON, Inc is experimenting with a combustion light gas gun design for field use. Articles incorporating text from Wikipedia, https://military.wikia.org/wiki/Combustion_light_gas_gun?oldid=4206111. “Lightening Strike” – An Indirect Fire Concept Utilizing Combustion Light Gas Gun (CLGG) Technology to Achieve Extreme Ranges. The Combustion Light Gas Gun is an advanced gun technology that will provide an affordable near term solution to the Navy’s long-range fire support needs. An example of the CLGG’s potential can be seen in Table 1 which shows predicted performance for CLGG based launchers as a function of tube length. During this time the research has shown that the technology provides a minimum of 30% more muzzle energy than advanced solid propellant guns which translates to significant advantages in … An experimental light-gas gun should operate in a similar way to a conventional gun with powder. 7819 - The Combustion Light Gas Gun - A Progress Update, Mr. David Kruczynski, UTRON, Inc. 7972 - A New Method for Fabricating Copper Rotating Bands on Munitions, Mr. Michael Minnicino, Aberdeen Proving Ground; Amunition. C. Light Gas Guns []. Although any object in motion through space may be called a projectile, the term more commonly refers to a ranged weapon. Other propellants are simply liquids that can readily be vaporized. Fuzes, explosive fill, and guidance systems all must be "hardened" against the significant acceleration loads of conventional artillery to survive and function properly. When the gases are ignited, they burn, expand and propel the projectile out of the barrel with higher efficiency relative to solid propellant and have achieved higher muzzle velocities in experiments. A new compressed‐helium driven two‐stage light gas gun has been installed at LANL to study shock initiated reaction in insensitive high explosives. As shown in Figure 5, the CLGG consists, in its simplest configuration, of a chamber sealed with a diaphragm and filled with a combustible mix of light gaseous propellants such as methane, hydrogen, oxygen, and helium, in various combinations. The high-low system, also referred to as the high-low pressure system, the high-low propulsion system, and the high-low projection system", is a design of cannon and anti-tank launcher using a smaller high-pressure chamber for storing the propellant. Therefore, hydrogen is typically the first choice; however, other propellants like methane can be used. The main difference is constituted by the means of achieving the necessary pressure to accelerate the projectile. 2 + xH. The Combustion Light Gas Gun or CLGG has been investigated for over ten years. CLGGs' gaseous propellants are able to increase the propellant's specific impulse. The gun consists of three tubes: the expansion, pump, and launch tubes. Originally, it was called a "bombshell", but "shell" has come to be unambiguous in a military context. [1] The corporation claims to have a system ready for testing as a potential long-range naval fire support weapon for emerging ships, such as the Zumwalt-class destroyer. 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