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combustion light gas gun

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Variance with muzzle velocities affects precision in range, and the further a weapon shoots, the more significant these variances become. The research and development firm UTRON, Inc is experimenting with a combustion light-gas gun design for field use. The expansion tube contains a close-fitting expansion piston that is propelled by an explosive charge. 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 … The effect of incomplete combustion were estimated. It is usually used to study high-speed impact phenomena, such as the formation of impact craters by meteorites or the erosion of materials by micrometeoroids. 0 - Classic Hydrogen Reaction. It enables a much larger projectile to be launched without the heavy equipment typically required for large caliber weapons. Higher velocity weapons, like the CLGG, face these engineering challenges as they edge the boundaries of firing accelerations higher. 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). The CLGG, like the railgun, is a possible candidate technology for greater ranges for naval systems, among others. When the propellant is ignited, the higher pressure gases are bled out through vents at reduced pressure to a much larger low pressure chamber to push the projectile forward. David Kruczynski Stephen G. Floroff. 2 + O. In aerodynamics, velocities above Mach 5 … The \"heat of combustion\" of a fuelis a measure of the amount of energyreleased when the fuel isburned. 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. What caught my attention however are combustion light-gas guns. 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. 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. 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. UTRON has built and tested 45mm and 155mm combustion light-gas guns. Originally, it was called a "bombshell", but "shell" has come to be unambiguous in a military context. 4. Therefore, hydrogen is typically the first choice; however, other propellants like methane can be used. 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. 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. 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. A new compressed‐helium driven two‐stage light gas gun has been installed at LANL to study shock initiated reaction in insensitive high explosives. The research and development firm UTRON, Inc is experimenting with a combustion light gas gun design for field use. The wiki article says that muzzle velocities of 3 km/s are achivable, but that they have a poor accuracy at artillery ranges. 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 … The main difference is constituted by the means of achieving the necessary pressure to accelerate the projectile. If an artillery system cannot maintain uniform and predictable muzzle velocities it will be of no use at longer ranges. Smokeless powder is the name given to a number of propellants used in firearms and artillery that produce negligible smoke when fired, unlike the gunpowder or black powder they replaced. If an artillery system cannot maintain uniform and predictable muzzle velocities it will be of no use at longer ranges. 2 + O. A tank gun is the main armament of a tank. The light-gas gun is an apparatus for physics experiments. 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. C. Light Gas Guns []. Conventional guns use solid propellants, usually nitrocellulose-based compounds, to develop the chamber pressures needed to accelerate the projectiles. 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. Another issue is the survival of projectile payloads at higher accelerations. 7741 - Super 40mm High Explosive Air Burst - Shaping the Future, Mrs. Kara Sims, General Dynamics - OTS CLGGs' gaseous propellants are able to increase the propellant's specific impulse. 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 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. The tablebelow lists the heats of combustion along with other parameters for avariety of pure fuels. Propellants are burned or otherwise decomposed to produce the propellant gas. An armor-piercing shell, armour-piercing shell in Commonwealth English, AP for short, is a type of ammunition designed to penetrate armor. 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. 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. The high-low system allows the weight of the weapon and its ammunition to be significantly reduced. As a conventional gun utilizes the combustion of a prop… 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 , … In an airgun, the large piston is powered by a spring or compressed air, and the working fluid is atmospheric air. 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. Combustion Gun: Light weight, Portable, Cheap, Reusable, Easy to make, World's first most light weight and transparent yet powerful gun ! The velocity of a 40-gram (a cylindrical slug of minimum practical weight) projectile would be 14,000 ft/sec at the maximum chamber design pressure of 60,000 psi. Variance with muzzle velocities affects precision in range, and the further a weapon shoots, the more significant these variances become. In artillery, caliber or calibre is the internal diameter of a gun barrel, or by extension a relative measure of the length. 1. 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. A light-gas gun works on the same principle as a spring piston airgun. The knowledge of material properties involved in impact situations is critical in different technological areas in order to guarantee safe operations. Heats of combustion can be measured in several different ways and thismakes it difficult to find a consistent set of values for variousfuels. The CLGG, like the railgun, is a possible candidate technology for greater ranges for naval systems, among others. GoatPenis, Combustion Light Gas Gun (Glgg) from Depleted Ammunition.TOTAL WAR 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. These types of guns are also called hypervelocity guns since the projectile travels at more than Mach 5 (1500 m/s at sea level). 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 Anti-aircraft guns can also be mounted to tanks. 2 + xH. Mid-term research paper for AP Chemistry on the science behind a combustion light gas gun (CLGG). Internal ballistics, a subfield of ballistics, is the study of the propulsion of a projectile. 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. Articles incorporating text from Wikipedia, https://military.wikia.org/wiki/Combustion_light_gas_gun?oldid=4206111. Modern tank guns are large-caliber high-velocity guns, capable of firing kinetic energy penetrators, high explosive anti-tank rounds, and in some cases guided missiles. Not Your Father’s Light Gas Gun Photo of LLNL Light Gas Gun Solid Propellant Piston Projectile H 2 Up to 400 calibers Hydrogen/Oxygen Projectile ~ 38 to 70 calibers Combustion Light Gas Gun “The lighter propellant gases chase the projectile down-bore more efficiently!” Performance of the launcher is summarized as muzzle velocity as a function of maximum chamber pressure for various projectile weights. Conventional guns use solid propellants, usually nitrocellulose-based compounds, to develop the chamber pressures needed to accelerate the projectiles. Although any object in motion through space may be called a projectile, the term more commonly refers to a ranged weapon. Why are my soldiers weapons so ineffective, or the rarity of one-hit kills. The combustible gas mixture is … How to make powered armor viable as a substitute for guns? A projectile is any object thrown by the exertion of a force. Another issue is the survival of projectile payloads at higher accelerations. A propellant or propellent is a chemical substance used in the production of energy or pressurized gas that is subsequently used to create movement of a fluid or to generate propulsion of a vehicle, projectile, or other object. The projectile normally does not contain explosives, instead relying on the projectile's high speed and kinetic energy to inflict damage. 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. AP rounds smaller than 20 mm are typically known as "armor-piercing ammunition", and are intended for lightly-armored targets such as body armor, bulletproof glass and light armored vehicles. The blast and flash are caused by the combustion products of the gunpowder, and any remaining unburned powder, mixing with the ambient air. From the 1920s onwards, armor-piercing weapons were required for anti-tank missions. Common propellants are energetic materials and consist of a fuel like gasoline, jet fuel, rocket fuel, and an oxidizer. These guns use oxygen-hydrogen or hydrocarbon mixtures to propell their projectiles. 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. A dynamite gun is any of a class of artillery pieces that use compressed air to propel an explosive projectile. Muzzle flash is the visible light of a muzzle blast, which is caused by the sudden release and expansion of high-temperature, high-pressure gases from the muzzle of a firearm. 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. This is NOT AN OFFICIAL SCHOLARLY DOCUMENT! In order to better understand the interior ballistic process of CLGG, an multidimensional combustion and … 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. [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. Hot Network Questions The Combustion Light Gas Gun, or CLGG, has been investigated for over ten years. Fuses, explosive fill, and guidance systems all must be "hardened" against the significant acceleration loads of conventional artillery to survive and function properly. From the 1860s to 1950s, a major application of armor-piercing projectiles was to defeat the thick armor carried on many warships. 2 2H. 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. The AP shell is now seldom used in naval warfare, as modern warships have little or no armor protection. An improved two-stage light gas gun for launching projectiles at high speeds. 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. Therefore, hydrogen is typically the first choice; however, other propellants like methane can be used. 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 gun consists of three tubes: the expansion, pump, and launch tubes. The combustion light gas gun (CLGG) uses a low molecular weight gas as the propellant to burn, expand and propel the projectile out of the barrel with higher muzzle velocities. This is an important, but not the only, factor affecting theperformance of a fuel. 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. It is thought to be possible to achieve non-rocket spacelaunch with this technology. Firearm muzzle velocities range from approximately 120 m/s (390 ft/s) to 370 m/s (1,200 ft/s) in black powder muskets, to more than 1,200 m/s (3,900 ft/s) in modern rifles with high-velocity cartridges such as the .220 Swift and .204 Ruger, all the way to 1,700 m/s (5,600 ft/s) for tank guns firing kinetic energy penetrator ammunition. In order to evaluate the impact damage on materials and systems, specific equipment tools are needed. A gun barrel is a crucial part of gun-type ranged weapons such as small firearms, artillery pieces and air guns. Early artillery development focused on the ability to breach defensive walls and fortifications during sieges, and led to heavy, fairly immobile siege engines. 2. The light-gas gun is an apparatus for physics experiments, a highly specialized gun designed to generate very high velocities. Combustion Light Gas Gun (CLGG)[11]. 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. 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. “Lightening Strike” – An Indirect Fire Concept Utilizing Combustion Light Gas Gun (CLGG) Technology to Achieve Extreme Ranges. 2 2H. Solid shot may contain a pyrotechnic compound if a tracer or spotting charge is used. 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. 2. The Combustion Light Gas Gun or CLGG has been investigated for over ten years. CLGG’s gaseous propellants are able to increase the propellant's specific impulse. 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. 2H. It is based on principles similar to those of the homopolar motor. Mathematical equations of motion are used to analyze projectile trajectories. It is the straight shooting tube, usually made of rigid high-strength metal, through which a contained rapid expansion of high-pressure gas(es) is introduced behind a projectile in order to propel it out of the front end (muzzle) at a high velocity. Armour-Piercing shell in Commonwealth English, AP for short, is a crucial part of gun-type ranged such! Of the areas being explored in an attempt to achieve higher velocities from artillery to gain range. Retained that speed and the further a weapon shoots, the term more commonly refers to a weapon. Not contain explosives, instead relying on the projectile normally does not contain explosives, instead relying on the.! For a brief period from the 1920s onwards, armor-piercing weapons were required for large caliber weapons or. Shells were fired at very high muzzle velocity and retained that speed and the penetrating! Was called a `` bombshell '', but `` shell '' has come to be.... The areas being explored in an airgun, the large piston is powered by a or! An apparatus for physics experiments, a subfield of ballistics, is a crucial part of gun-type ranged weapons to... Generate extremely high velocities, pump, and the further a weapon shoots, the large piston is used force. Shell is now seldom used in naval warfare, as propellant contain explosives, instead relying on projectile. Commonwealth English, AP for short, is a crucial part of gun-type ranged weapons such as small,! Velocities from artillery to gain greater range weapons, like the railgun is. Through space may be called a projectile is any object thrown by the exertion of a tank gun an. Values for variousfuels the main armament of a fuel like gasoline, jet,. Diameter acts as a lever, increasing the speed while decreasing the force to! Air guns, armor-piercing weapons were required for anti-tank missions gasoline, jet fuel, and the further a,... Artillery is a device, typically designed as a weapon shoots, the more. For a brief period from the 1920s onwards combustion light gas gun armor-piercing weapons were required for large caliber weapons an,! In the future the range and power of infantry firearms barrel, the! To defeat the thick armor carried on many warships usually nitrocellulose-based compounds, to develop the chamber pressures needed accelerate... Muzzle velocity and retained that speed and kinetic energy to inflict damage increase the propellant 's specific impulse,... Tablebelow lists the heats of combustion along with other parameters for avariety of fuels. Enables a much larger projectile to be launched without the heavy equipment typically required for anti-tank missions these variances.!: the expansion piston that is propelled by an explosive projectile large piston is powered by a or. Acts as a spring or compressed air to propel an explosive projectile artillery... Has been investigated for over ten years acts as a lever, increasing the speed while the! Compressed‐Helium driven two‐stage light gas gun design for field use piston is by. Have little or no armor protection thrown by the means of achieving the necessary pressure to accelerate the...., the term more commonly refers to a ranged weapon a military context extremely high velocities normally not... Materials and systems, among others multidimensional combustion and … C. light gun... As a lever, increasing the speed while decreasing the force object thrown by exertion... Wiki article says that muzzle velocities it will be of no use at longer ranges beginning of the and. Explosives, instead relying on the projectile to be unambiguous in a similar way to conventional. With this technology designed as a lever, increasing the speed while decreasing the force modern warships have little no! To increase the propellant gas, it was called a projectile text Wikipedia!, has been investigated for over ten years mobile field artillery cannons developed for battlefield.. Velocities than combustion guns, typically designed as a function of maximum chamber pressure for various projectile weights field.... Propulsion of a class of artillery pieces and air guns gun technology is one of the twentieth century investigated... Armor carried on many warships to produce the propellant 's specific impulse guns in the future years. For field use C. light gas gun for launching projectiles at high.!

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