The M18A1 Claymore is a directional anti-personnel mine used by the U.S. military. Nostradamus [Michel de Nostredame], French astrologer and physician. After a number of experiments they settled on Devcon-S steel filled epoxy to hold the balls in place. Designed to counter human-wave assaults, the Claymore uses a shaped C-4 charge to fire several hundred steel balls into a designated 55-yard killing zone. Designed to counter human-wave assaults, the Claymore uses a shaped C-4 charge to fire several hundred steel balls into a designated 55-yard killing zone. APC bodies were mounted on 5-ton truck beds in Vietnam to create convoy-protecting "gun trucks". Bill Kincheloe came up with the idea of using a "Tiny Tim" toggle generator used with a number of navy rockets. By the spring of 1956 they had a near-final design, which was awarded a preproduction contract for 1,000 M18A1 claymores designated T-48E1 during testing. Seeing the RFP and working with Don Kennedy they submitted a 30 page proposal to Picatinny and were awarded a $375,000 development contract to improve the design. The mine is detonated as the enemy approaches the killing zone. Unlike a conventional land mine, the Claymore is command-detonated and directional, meaning it is fired by remote-control, shooting a pattern of metal balls into the kill zone like a shotgun. After finding a suitably low-cost device, it was found that fumes from either the C-3 explosive or the cement used to adhere the sight to the top of the mine corroded the plastic mirrors, rendering them unusable. claymore synonyms, claymore pronunciation, claymore translation, English dictionary definition of claymore. [1], The original M18 mine fell far short of requirements. A private in the United States army. The mine can be detonated by any mechanism that activates the blasting cap. It is designed to be manually detonated and is primarily used in defence of a position, or set up along the enemy’s route as a means of ambush. The 1911 Encyclopædia Britannica likewise judged that the term is "wrongly" applied to the basket-hilted sword. It is also of some use against unarmored vehicles. [1], Kincheloe immediately came up with the suggestion to use softer 1⁄8-inch (Bad rounding hereScript error mm) steel "gingle" balls that were used in the foundry process. First, the hardened steel balls spalled into fragments when hit by the shock of the explosion; the fragments were neither aerodynamic enough nor large enough to perform effectively. Today, the term is applied to 'newbie' people who move to a urban neighborhood from another state or from the suburbs during gentrification. The force of the explosion deforms the relatively soft steel balls into a shape similar to a .22 rimfire projectile. Norman MacLeod and Explosive Research Corporation, Kennedy, Throner, Bledsoe, and Kincheloe at Aerojet. Internally the mine consisted of a layer of 12-ounce (Bad rounding hereScript error g) of C-3 explosive (the forerunner of C-4 explosive) in front of which was laid an array of 0.25-inch (Bad rounding hereScript error mm) steel cubes. Definition of claymore mine in the Definitions.net dictionary. Define claymore mine. Later a Philadelphia company, Molded Plastic Insulation Company, took over the manufacture of the firing device for the first large scale production run producing a plastic device.[1]. The softer balls did not spall when struck by the shock from the explosive, instead they deformed into a useful aerodynamic shape similar to a .22 rimfire projectile. The area in a combat zone in which artillery can be used to provide heavy firepower as a support for other military units. Dr. John Bledsoe led the initial project. It was named after the large Scottish sword by its inventor, Norman A. MacLeod. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. The claymore mine is a wall of iron pellets propelled by plastic explosive and detonated with a blasting cap. A claymore mine. [1], MacLeod applied for a patent for the mine on 18 January 1956 and was granted it in February 1961. The day all American soldiers in Vietnam were waiting for. Additionally the blast "leaked" between the balls, reducing their velocity. A large, double-edged broadsword formerly used by Scottish Highlanders. Canada fielded a weapon called the "Phoenix" landmine that used the Misznay-Schardin effect to project a spray of 0.25-inch (Bad rounding hereScript error mm) steel cubes towards the enemy. Using a homemade chronograph these were clocked at 3,775 feet (Bad rounding hereScript error m) per second. In a world constantly haunted by demonic predators known as "Youma", the everyday life of humans is full of fear and suspicion, as these monsters easily blend into human … An antipersonnel mine used to quell the advance of enemy troops; it can be activated from a distance. [1], There were still a number of technical challenges to overcome, including the development of a case that would be able to contain the corrosive C-3 explosive, and be tough enough to withstand months of field handling in wide temperature ranges. Junior J. Spurrier, received Medal of Honor for his actions in capturing Achain, France. Another word for claymore mine. [1], Minor modifications were made to the mine during its service. The sighting for the device was also originally intended to be a cheap pentaprism device, that would allow the user to look down from above and see the sight picture. MacLeod's case collapsed when photographs of the German Trenchmine prototype were produced as evidence of prior art.[1]. Item Information. GI. Definitions of Terms Vietnam Era. The M18A1 Claymore mine is a directional anti-personell explosive device. Explosives researcher Norman A. MacLeod used it to design a weapon to counter human-wave assaults, such as those waged by Chinese soldiers against Americans in the Korean War. Automatic Ambush - a series of claymore mines configured to detonate simultaneously when triggered by a trip-wire/battery mechanism. The mine was then triggered from a safe position, preferably to the side and rear. With this improvement, the velocity improved to 3,995 feet (Bad rounding hereScript error m) per second. The original M18 Claymore mine. U.S. soldiers first used them to devastating effect against Viet Cong and North Vietnamese human-wave assaults. Schardin spent some time developing the discovery as a side-attack anti-tank weapon, but development was incomplete at the end of the war. Spider Stacy (Peter  Stacy), singer, songwriter, musician with The Pogues band. It is used primarily in ambushes and as an anti-infiltration device against enemy infantry. Components of the M18A1 Claymore. Claymore Clara was a Viet Cong patient I treated at the Provincial Hospital in Nha-Trang, South Vietnam. Definition of claymore noun in Oxford Advanced Learner's Dictionary. Many countries use mines like the Claymore. (Illustration by Gregory Proch) A layer of tinfoil was added between the fragmentation matrix and the explosive. A ferrite choke was added to prevent RF signals and lightning from triggering the mine.[1]. A manga (Japanese Comic) which centers around a mysterious organisation and monsters appearing in a medieval european setting. The second optimization was to use a poured plastic matrix to briefly contain the blast from the explosive, so that more of the blast energy was converted into projectile velocity. [1], A second problem to be addressed was the curvature of the mine. The fragments can travel up to 250 m (Bad rounding hereScript error yd). chÀo mỪng cÁc bẠn Đà ĐẾn vỚi trang claymore wiki viỆt nam. LTC Robert L Graham Operations Officer D Troop, Centaurs 1966-67 The mine was barely more than a prototype and was not considered a "reliable casualty producer" with an effective range like the Phoenix of only 90 feet (30 m). Claymore Mine Body. The claymore used a curved block of C-4 explosive, shaped to blow all its force outward in a semicircular pattern. [5] It lacked the later version's iconic "FRONT TOWARD ENEMY" marking. claymore mine synonyms, claymore mine pronunciation, claymore mine translation, English dictionary definition of claymore mine. Tham khảo . Unlike a conventional land mine, the Claymore is command-detonated and directional, meaning it is fired by remote-control, shooting a pattern of metal balls into the kill zone like a shotgun. Organization formed by Vietnam veterans who gathered to protest American involvement in Vietnam. M7 Bandoleer. Nazi Chancellor Adolf Hitler was particularly interested when fellow Austrian Franz Rudolf Thomanek applied this principle to design shaped charges to defeat tanks and fortifications. Define claymore. Testing concluded that the mine was effective out to approximately 110 yards (Bad rounding hereScript error m), being capable of hitting 10% of the attacking force. walking wounded: wounded who are still able to walk without assistance. The Misznay-Schardin effect was independently discovered during World War II by Misznay, a Hungarian, and Dr. Hubert Schardin, a German. Conclusion. In the lead-up to World War II József Misznay, a Hungarian army officer and ballistics expert, and German physicist Hubert Schardin formulated the Misznay-Schardin effect, a phenomenon in which the blast from the face of an explosive sheet expands perpendicularly from its surface. The M18A1 Claymore mine has a horizontally convex green plastic case (inert training versions are blue). 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