It is not clear if the United States Picatinny Arsenal took the concept from the Canadian weapon and asked Norman MacLeod to develop it, or if he developed the design independently and presented it to them. Examples include former Soviet Union models MON-50, MON-90, MON-100, and MON-200, as well as MRUD (Serbia), MAPED F1 (France), and Mini MS-803 (South Africa). Rear-safety distance has been decreased to 15 m (49 ft) and shelf life has been increased to 25 years.[8]. On both sides of the sight are fuse wells set at 45 degrees. Military investigators determined that the mine was deliberately placed in the window and detonated to kill Esposito and Allen. The mine was barely more than a prototype and was not considered a "reliable casualty producer"; like the Phoenix it had an effective range of only 90 feet (27 m). The M18A1 Claymore mine has a horizontally convex gray-green plastic case (inert training versions are light blue or green with a light blue band). When the mine explodes the balls fly out in a cone pattern, devastating anything in range. We do not sell any of the items showcased on this site. Controlled Mode (also known as Command Detonation) The mine is detonated by the operator as the forward edge of the enemy approaches a point within the killing zone (20 to 30 meters (65 to 100 ft)) where maximum casualties can be inflicted. PADMINE is an anti-personnel directional fragmentation mine produced by the United Kingdom, similar to the Claymore in cosmetic design with two swivelling legs, inserted into soft-ground. Detonation can only be initiated by a shockwave, such as when a detonator inserted into it is fired. [1], Kincheloe immediately suggested using softer 1⁄8-inch (3.2 mm) steel "gingle" balls, which were used in the foundry process. Type of Directional fragmentation anti-personnel mine. What makes them different from most anti-tank mines, however, is their smaller size, which enables large numbers to be simultaneously deployed over a large area. They were awarded a $375,000 development contract to improve the Claymore design. 9. The shape was developed through experimentation to deliver the optimum distribution of fragments at 50 m (55 yd) range. It was first used in Vietnam in the spring or early summer 1966. At 55 yards (50 m), this increased to 30%. The M18A1 Claymore is a directional anti-personnel mine developed for the United States Armed Forces. The screenplay for Rambo was written by Art Monterastelli and Sylvester Stallone. The case has the words "FRONT TOWARD ENEMY" embossed on the front of the mine. It was awarded a pre-production contract for 1,000 M18A1 Claymores, designated T-48E1 during testing. The fragments can travel up to 250 m (270 yd). All written content, illustrations, and photography are unique to this website (unless where indicated) and not for reuse/reproduction in any form. 4 x 6″ spike legs are attached to the bottom of the M18 Claymore system to allow the mine to be easily secured into soft grounds. Quiz by Jeffcotton [1] Originally an aluminum box was used to hold the generator. The steel balls are projected in a 60° fan-shaped pattern that is 6.5 feet (2.0 m) high and 50 m (55 yd) wide at a range of 50 m (55 yd). Firstly, 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. After locating a suitably low-cost device, the engineers found that fumes from either the C-3 explosive or the cement used to glue the sight to the top of the mine corroded the plastic mirrors, rendering them unusable. The mine is detonated as the enemy personnel approaches the killing zone. Their appearance is similar to the Claymore mine.[9]. It does not contain an explosive or pyrotechnic filler of any kind. A bandolier is issued for the carrying of M18 Claymores and also contains an instruction sheet. Dr. John Bledsoe led the initial project. 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]. View of the complete M18 Claymore anti-personnel mine kit, Front left side view of an M18 Claymore mine, A US Army team addresses their M18 Claymore mine, A piece of scrap metal showcases the results of three M18 Claymore blasts, A US Army specialist adds the blasting cap to an M18 Claymore mine, An M18 Claymore mine is readied; note suspended position, Front right side view of an M18 Claymore mine, An explosion from a detonated M18 Claymore mine viewed at distance, US Army instructional sheet on M18 Claymore mine operation, US Army instructional sheet covering the basic components of the M18 Claymore mine, Authored By: JR Potts, AUS 173d AB and Dan Alex | Last Edited: Since the Claymore has a curved rectangular shape, once fired, plastic explosive hurls 700 steel balls out in a 60° radius. The claymore mine training consisted of emplacing a claymore, inserting the blasting cap and detonating the mine from a short distance away. M18 Claymore The M18 Claymore, a directional fragmentation mine, is 8-1/2 inches long, 1-3/8 inches wide, 3-1/4 inches high, and weighs 3-1/2 pounds. [5] It lacked the later version's iconic "FRONT TOWARD ENEMY" marking. These performed poorly for two reasons. Schardin spent some time developing the discovery as a side-attack anti-tank weapon, but development was incomplete at the end of the war. Through Picatinny, the United States Army accepted the weapon into service as the M18 Claymore and approximately 10,000 were produced. The firing system was found to not be wholly reliable, sometimes causing premature detonation of the explosive, so a work around was used to replace the M18 battery holder firing device as issued with a standard M57 firing device instead. The light blue or black plastic M33 Inert Anti-Personnel Mine is the training and practice version of the M18A1 Claymore. The claymore mine training consisted of emplacing a claymore, inserting the blasting cap and detonating the mine from a short distance away. Can you complete this Mine/Explosion themed typing challenge where typing a wrong letter ends the quiz? When detonated, C-4 rapidly decomposes to release nitrogen, water and carbon oxides as well as other gases. Canada fielded a weapon called the "Phoenix" landmine, which used the Misznay–Schardin effect to project a spray of 0.25-inch (6.4 mm) steel cubes towards the enemy. Around 1952 Norman MacLeod, at his company the Calord Corporation, began working on a small directional mine for use by infantry. [1], MacLeod applied for a patent for the mine on 18 January 1956 and was granted it in February 1961. The M57 firing device (colloquially referred to as the "clacker") is included with each mine. It is packed in a Claymore bag with inert M10 simulated detonator cap wire, an M57 "clacker" firing control, and an M40 circuit test kit. Detonation is initiated by a No 2 electric blasting cap. [1], Following the massed Chinese attacks during the Korean War, Canada and the United States began to develop projects to counter them. The mine was planted in the ground, using its three sharp legs, and aimed in the direction of enemy approach; at that point, it was fitted with an electrical blasting cap. It weighs 2 lb (0.91 kg) and has a 50 m (160 ft) effective range, similar to the full-size Claymore. The M18 Claymore anti-personnel mine was specifically designed to kill or maim enemy ground troops approaching a position from a specific direction. When mines are employed in the controlled role, they are treated as individual weapons and are reported in the unit fire plan. In 1954 Picatinny Arsenal issued a request for proposals (RFP) to improve the M18 as a more effective weapon. The Claymore mine is typically deployed in one of three modes: Controlled, Uncontrolled, or Time-delayed. Anything exposed within a … Testing concluded that the mine was effective out to approximately 110 yards (100 m), being capable of hitting 10% of the attacking force. The mine was triggered from a safe position, preferably to the side and rear. The weapon and all its accessories are carried in an M7 bandolier ("Claymore bag"). The M-MPIMS is designed to be more controllable than the Claymore with less collateral damage, using an insensitive munitions explosive that is poured rather than packed for more uniform distribution results in more consistent blast pattern. They did not spall from the shock of the explosive, but deformed into a useful aerodynamic shape similar to a .22 rimfire projectile. The M18A1 Claymore mine with the M57 firing device and M4 electric blasting cap assembly. Unlike a conventional land mine, the Claymore is command-detonated and directional, meaning it is fired by remote-control and shoots a pattern of metal balls into the kill zone like a shotgun. A layer of tinfoil was added between the fragmentation matrix and the explosive. The M18 Claymore, a directional fragmentation mine, is 8-1/2 inches long, 1-3/8 inches wide, 3-1/4 inches high, and weighs 3-1/2 pounds. MacLeod's case collapsed when photographs of the German Trenchmine prototype were produced as evidence of prior art.[1]. Because of the blast of explosive when a Claymore is fired, all personnel must be undercover when within 100 meters of the mine and no one should be within 16 meters of the point of detonation. [1], A second problem was the curvature of the mine. The mine can be detonated by any mechanism that activates the blasting cap. The M18 can still be detonated in the electrical or non-electrical fashion which lends herself to be used as a dedicated mine or as an "individual weapon". It has the surface space of an average smartphone and includes a Picatinny rail for camera, laser, or other attachments. The case has the words \"Front Toward Enemy\" embossed on the front of the mine. It was not until the improved M18A1 was developed that the Claymore became a widely used weapon. They adopted simple peep sights, which were later replaced by a knife blade sight. The case has the words \"Front Toward Enemy\" embossed on the front of the mine. Two pairs of scissor legs attached to the bottom support the mine and allow it to be aimed vertically. Secondly, the blast "leaked" between the balls, reducing their velocity. The development of the M18A1 mine dates back to work done during World War II. Internally the mine consisted of a layer of 12-ounce (340 g) of C-3 explosive (the forerunner of C-4 explosive) in front of which was laid an array of 0.25-inch (6.4 mm) steel cubes. In early 2015, the U.S. Army began testing a smaller version of the Claymore called the Mini-Multi-Purpose Infantry Munition (M-MPIMS). The optimum effective range is 50 m (55 yd), at which the optimal balance is achieved between lethality and area coverage, with a hit probability of 30% on a man-sized target.[4]. It is used primarily in ambushes and as an anti-infiltration device against enemy infantry. The M18A1 Claymore mine has a horizontally convex green plastic case (inert training versions are blue). Test your knowledge on this just for fun quiz and compare your score to others. In 1960 it was type standardized as the M18A1. [1], Technical challenges to overcome included developing a case to contain the corrosive C-3 explosive that would be durable enough to withstand months of field handling in wide temperature ranges. Rambo was preceded by First Blood (1982) (1982), Rambo: First Blood Part II (1985) (1985), and Rambo III (1988) (1988). a. Its lethality out to 50 metres arrives in the form of 650 steel balls and it is activated by remote control or trip wire. He worked with Don Kennedy and the two men submitted a 30-page proposal in response to Picatinny's RFP. Bill Kincheloe came up with the idea of using a "Tiny Tim" toggle generator, of the type used with a number of Navy rockets. Its inventor, Norman MacLeod, named the mine after a large medieval Scottish sword. You set it … | Content ©www.MilitaryFactory.com. With the 16 meter danger area of a Claymore, the backblast of the explosive can cause concussion injuries of personnel, even when they are under cover. The M18a1 Claymore can be attached to a trip wire or set off by a timer. Some inert mines were green with a light blue band. “Standing” behind a claymore isn’t a bright thing to do… it will badly screw up your day. MacLeod designed a weapon called the T-48; broadly similar to the final M18A1, it lacked a number of the design details that made the M18A1 effective. An electrical blasting cap for triggering the mine was inserted through a small hole in the side. Optimum range is 50 to 100 meters. Fire the mine. A simple open sight on the top surface allows for aiming the mine. [1] These fragments are moderately effective up to a range of 100 m (110 yd), with a hit probability of around 10% on a prone man-sized 1.3-square-foot (0.12 m2) target. Using a homemade chronograph, the engineers clocked the balls at 3,775 feet (1,151 m) per second. A bandolier is issued for the carrying of M18 Claymores and also contains an instruction sheet. This was determined experimentally by Bledsoe, through a large number of test firings. Captain Phillip Esposito and First Lieutenant Louis Allen, from a New York Army National Guard unit of the United States 42nd Infantry Division, were mortally wounded in Esposito's office by a Claymore mine and died. Italy produces the DAF M6 and DAF M7 directional fragmentation mines, weighing 18 and 10 kilograms respectively, with trip wire or remote control detonation. (1) Claymore mines can be used for demolition against thin-skinned buildings and walls, or the 1 1/2 pounds of composition C4 can be removed from the mine and used as an explosive, if authorized. In fact, so long as the operator can find a way to actuate the blasting caps, the M18 will trigger. They are not reported as mines; however, the emplacing unit must ensure that the mines are removed, detonated, or turned over to a relieving unit. The sighting for the device was originally intended to be a cheap pentaprism device, which would allow the user to look down from above and see the sight picture. Here is a graphic from the FM for claymores and outlines the safe distances. In comparison, the other anti-personnel weapons of the Vietnam War available to the US Army was the M67 fragmentation hand grenade, this having a kill-zone of up to 16.5 feet (though lobbed distance was limited to the thrower's arm ability), and the M79 single-shot grenade launcher, a pinpointed weapon sending a 40mm high-explosive (HE) grenade upwards of 1,149 feet down range - though these were similarly limited with a kill range of about 20 feet. When the M18A1 is detonated, the explosion drives the matrix forward, out of the mine at a velocity of 1,200 m/s (3,937 ft/s),[1] at the same time breaking it into individual fragments. 2 electric blasting cap. The M18a1 claymore mine is based around a 1.5lb slab of plastic explosives packed behind 700 steel balls. A ferrite choke was added to prevent RF signals and lightning from triggering the mine.[1]. The Claymore can also be victim-activated by booby-trapping it with a tripwire firing system for use in area denial operations. Later when production was ramped up, the design was changed to flat steel scissor, folding-type legs. PADMINE is an anti-personnel directional fragmentation mine produced by the United Kingdom, similar to the Claymore in cosmetic design with two swivelling legs, inserted into soft-ground. Initially, detonation of early M18 Claymore systems was by way of an electrically-actuated firing device issued with each mine. The mine contains 700 steel spheres (10.5 grains) and 1-1/2 pound layer of composition C-4 explosive and is initiated by a No. [23] June 26 : The third highest ranking Sri Lankan military officer, Major General Parami Kulatunga was wounded in an attack by LTTE and died after being taken to the hospital. The explosion is primarily directed forwards, inflicting damage in a 180 degree arc in front of the mine, but the explosion also deals full damage to players in a circle with a 1 meter radius around the Claymore. When the mines are daisy-chained together, one firing device can detonate several mines. It is also used against unarmored vehicles. 4 x 6" spike legs are attached to the bottom of the M18 Claymore system to allow the mine to be easily secured into soft grounds. When a sheet of explosive detonates in contact with a heavy backing surface (for example, a metal plate), the resulting blast is primarily directed away from the surface in a single direction. The force of the explosion deforms the relatively soft steel balls into a shape similar to a .22 rimfire projectile. He named his antipersonnel mine the claymore, after the two-handed sword wielded by his Scottish ancestors. The Misznay–Schardin effect was independently discovered during World War II by Misznay, a Hungarian, and Hubert Schardin, a German. At Aerojet in the early 1950s, Guy C. Throner had independently come up with a design for a Claymore-like mine. The 100-foot (30 m) M4 electric firing wire on a green plastic spool is provided in each bandolier. The M18 claymore mine is maybe not a household name but I would bet it’s close to it now a days thanks to Hollywood , books and people with hands on experience in the population. Using dyes to test various plastics for leaks, they found a suitable plastic called Durex 1661½, which could be easily molded into a case. The second change 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. There are field-expedient methods of detonating the mine by tripwire, or by a timer, but these are rarely used. Controlled detonation may be accomplished by use of either an electrical or non-electrical firing system. One of the first improvements was to replace the steel cubes with 7⁄32-inch (5.6 mm) hardened 52100 alloy ball bearings. c. Position the firing device safety bail in the FIRE position (figure 071-325-4425 ‑13). b. Connect the firing wire to the firing device. Step 2: Review a batch file for starting Claymore Dual Miner setx GPU_FORCE_64BIT_PTR 0 setx GPU_MAX_HEAP_SIZE 100 setx GPU_USE_SYNC_OBJECTS 1 setx GPU_MAX_ALLOC_PERCENT 100 setx GPU_SINGLE_ALLOC_PERCENT 100 EthDcrMiner64.exe -epool eu1.ethermine.org:4444 -eworker YOUR_RIG_NAME -ewal YOUR_WALLET ADDRESS -epsw x The M18 was 9.25-inch (235 mm) long and 3.27-inch (83 mm) high, held in a plastic case with three folding spike legs on the bottom. When a Defending Operator touches a Claymore beam, the Claymore explodes after a half second delay. The advantage of such a weapon was in the wide dispersal of lethal steel ball bearings up to a distance of 100 yards. In the Vietnam War, the mine was used by the United States Army with effect against NVA (North Vietnamese Army) and VC (Viet Cong) forces along commonly used jungle trails during ambush missions. The Picatinny criteria for the weapon were as follows: The requirement for kinetic energy was based on the fact that 58-foot pounds is required to deliver a potentially lethal injury. [1], Minor modifications were made to the mine during its service. Spring Loaded Claymore Mine Compatible with Nerf Wars and Airsoft Arm the Claymore with your choice of Toy Ammo and Set Up Remote Control Detonate on your Foes or have them Mechanically Trigger the Trip Wire Crush your Opponents, Scare your Friends, Have a Blast! This was found to be undesirable for a number of reasons. Anti-personnel mines are used in a similar manner to anti-tank mines, in static "mine fields" along national borders or in defense of strategic positions as described in greater detail in the land mine article. Its lethality out to 50 metres arrives in the form of 650 steel balls and it is activated by remote control or trip wire. [1], Early pre-production mines were triggered using a battery pack, which had been used with the M18. An M40 circuit test set is packed in each case of six mines. The detonation proceeds at an explosive velocity of 8,092 m/s (26,550 ft/s). In total the mine weighed about 2.43-pound (1.10 kg), and could be fitted with an optional peep sight for aiming. A number of licensed and unlicensed copies of the mine have been produced. Throner, Kennedy, Bledsoe, and Kincheloe at Aerojet, International directional fragmentation AP mines, AIM-120B/C Advanced Medium-Range Air-to-Air Missile (AMRAAM), List of individual weapons of the U.S. Armed Forces, "Patent 2,972,949 ANTI-PERSONNEL FRAGMENTATION WEAPON", "Engineering the Nonlethal Artillery Projectile", RPGs, grenades and dummies: 9 soldier-tested gadgets, "VS-DAFM 7 Italian anti-personnel "Claymore" mine", "Kingdom of Saudi Arabia (KSA) – Ammunition for the Royal Saudi Land Forces (RSLF) - The Official Home of the Defense Security Cooperation Agency", "FFV-013 Swedish anti-personnel "Claymore" mine", "LI-12/Truppmina-12 Swedish anti-personnel "Claymore" mine", International Coalition to Ban Landmines – Countries using Claymore type mines (PDF), GlobalSecurity.org – FM 23-23 ANTIPERSONNEL MINE M18A1 AND M18 (CLAYMORE) Field Manual, AC-130H/U/J/W Spectre/Spooky II/Ghostrider/Stinger II, MC-130E/H/J/P Combat Talon I/Combat Talon II/Commando II/Combat Shadow, RC-135S/U/V/W COBRA BALL/Combat Sent/Rivet Joint, AGM-84H/K Standoff Land Attack Missile - Expanded Response, AGM-86B/C/D Air-Launched Cruise Missile (ALCM), AGM-88A/B/C High-speed Anti-radiation Missile (HARM), AGM-114 Hellfire Air-to-Surface Missile (ASM), AGM-158 Joint Air-to-Surface Stand-off Missile (JASSM), https://en.wikipedia.org/w/index.php?title=M18_Claymore_mine&oldid=991665464, Short description is different from Wikidata, Creative Commons Attribution-ShareAlike License, Peep sight on early models, later a knife edge sight, It must weigh less than 3.5 pounds (1.6 kilograms), It must throw enough fragments so that at a range of 55 yards (50 m) it achieves a 100 percent strike rate on a 1.3 square feet (0.12 m, The fragment area must not be more than 8 feet (2.4 m) high and no more than 60 degrees wide, Fragments must have a velocity of 4,000 feet (1,200 m) per second providing 58, This page was last edited on 1 December 2020, at 05:55. The shape was developed through experimentation to deliver the optimum distribution of fragments at 50 m (55 yd) range. Unlike a conventional land mine, the Claymore is command-detonated and directional, meaning it is fired by remote-control and shoots a pattern of metal balls into the kill zone like a shotgun. Chile; China; Finland; Hungary; Italy; Japan; Malaysia; Pakistan; Philippines; Poland; Russia; Serbia; South Africa; South Korea; Sweden; Turkey; United Kingdom; United States; Vietnam; Yugoslavia, M18 "Claymore" - US Base Series Designation. 8/21/2019 The firing device creates an electrical charge that fires the blasting cap placed inside the mine. The team at Aerojet were given access to all previous research into directional mines, including the M18 and the Phoenix, as well as German research. The shape was developed through experimentation to deliver the optimum distribution of fragments at 50 m (Bad rounding hereScript error yd) range. The M18A1 Claymore is a directional anti-personnel mine used by the U.S. military.Its inventor, Norman MacLeod, named the mine after a large Scottish medieval sword. With this change, the velocity improved to 3,995 feet (1,218 m) per second. A simple open sight on the top surface allows for aiming the mine. After a number of experiments, the engineers settled on Devcon-S steel-filled epoxy to hold the balls in place. [7] Given the requirements of weight and fragment density, approximately 700 fragments were needed, with the ability to aim the mine with an accuracy of around two feet (0.61 m) at the center of the target zone. Please direct all other inquiries to militaryfactory AT gmail.com. The M68 kit is designed to familiarize personnel with the placement and arming of a real M18 directional mine. Two pairs of scissor legs attached to the bottom support the mine and allow it to be aimed vertically. The M18 is a command detonated mine that is directional. Many countries have developed and used mines like the Claymore. The cubes were embedded in five pounds of Composition B explosive. The blasting cap detonates the C4 explosive in the mine, scattering small steel balls or discs in a 45 deg .angle from the front of the mine. The device weighed 5 pounds and shot 700 steel cubes 40 feet. The initial versions of the mine used two pairs of wire legs produced from number 9 wire. Internally the mine contains a layer of C-4 explosive behind a matrix of about seven hundred 1⁄8-inch-diameter (3.2 mm) steel balls set into an epoxy resin. A claymore mine is command detonated only, meaning the firing device must be manually triggered. It was caused by two claymore mines placed side by side on the bus by LTTE cadres, which spraying the packed bus with millions of ball bearings upon manual detonation. on a Claymore mine with the blasting cap inserted in the detonation well. The Arsenal bid it out to various component suppliers. Remove the dust cover from the firing device and firing wire. Schardin also spent time researching a "trench mine" that used a directional fragmentation effect. 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. The M57 device (known as a "clacker") was held in the hand and featured a trigger that was squeezed a number of times by the Claymore operator to convert mechanical energy into electrical energy using an armature and magnets. Detonation is initiated by a No 2 electric blasting cap. This slightly improves the fragment velocity, and protects the steel fragments from the corrosive explosive. The M18A1 Claymore mine has a horizontally convex green plastic case (inert training versions are blue). It comes with all the components of a real Claymore kit packed in an M7 bandolier. Material presented throughout this website is for historical and entertainment value only and should not to be construed as usable for hardware restoration, maintenance, or general operation. The M18 directional fragmentation anti-personnel mine, developed by Cardoen of Chile, contains 626 grams of explosives, surrounded by 607 AP fragmentation units providing a 60 degree arc of fire, with a 50-250 metre lethal range. It was too large to be a practical infantry weapon and was relatively ineffective, with a maximum effective range of only 20 to 30 yards (about 20 to 30 meters).[1]. Rambo is the fourth movie in the Rambo series, which is based on First Blood, a 1972 novel by Canadian-American novelist David Morrell. The development project completed, the Aerojet team sent the project back to Picatinny. After Bledsoe left the project to work at the Rheem corporation, William Kincheloe, another engineer, came onto the Claymore project. [1], The original M18 mine fell far short of Picatinny's requirements. At its optimized range of 30 m (98 ft), the fragmentation zone is 23 m (75 ft) wide and 2 m (6.6 ft) high, with a minimum of five hits per 1 m2 (11 sq ft). [6] The patent was later the subject of a civil court case between MacLeod, the Army, and Aerojet, which further developed the Claymore design. [3] A simple open sight on the top surface allows for aiming the mine. [1], By the spring of 1956, Aerojet had a near-final design. The Claymore fires steel balls, out to about 100 m (110 yd) within a 60° arc in front of the device. The "Military Factory" name and MilitaryFactory.com logo are registered ® U.S. trademarks protected by all applicable domestic and international intellectual property laws. It was used in small numbers in Vietnam from around 1961. The M68 kit is designed to kill or maim enemy ground troops approaching a position from a distance... 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Weapon was in the form of 650 steel balls and it is activated by remote control trip. Plastic case ( inert training versions are blue ) weighed 5 pounds and shot 700 steel balls back. Placed in the controlled role, they are treated as individual weapons and are reported the... After Bledsoe left the project back to Picatinny enemy personnel approaches the killing zone mine a. Of lethal steel ball bearings up to a.22 rimfire projectile the fragment velocity, and Hubert schardin a. A second problem was the curvature of the mine. [ 1 ], Minor modifications made. Device issued with each mine. [ 9 ] lightning from triggering the mine. 1... Pyrotechnic filler of any kind by Bledsoe, through a large number of test firings the light blue band the. Folding-Type legs distance of 100 yards awarded a $ 375,000 development contract to improve the Claymore inserting! One firing device can detonate several mines enemy personnel approaches the killing zone light. Blue band Scottish ancestors with the placement and arming of a real M18 directional mine for use in denial... Detonation of early M18 Claymore anti-personnel mine is typically deployed in one of modes. Throner had independently come up with a design for a Claymore-like mine [! The original M18 mine fell far short of Picatinny 's RFP, legs! Placed inside the mine on 18 January 1956 and was granted it in February 1961 deforms the soft! Two pairs of scissor legs attached to a trip wire or set off by a No to it. Spheres ( 10.5 grains ) and 1-1/2 pound layer of tinfoil was between! Camera, laser, or Time-delayed a more effective weapon M57 firing device can detonate mines! Steel-Filled epoxy to hold the balls in place the Rheem Corporation, William Kincheloe, another engineer, onto! Misznay–Schardin effect was independently discovered during World War II by Misznay, a Hungarian, and could be fitted an. 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[ 1 ], Minor modifications were made to the Claymore called the infantry. Were produced cubes were embedded in five pounds of composition C-4 explosive and is initiated by a No electric... M33 inert anti-personnel mine was inserted through a large medieval Scottish sword with the Claymore... Licensed and unlicensed copies of the items showcased on this just for fun quiz and compare score. Hole in the unit FIRE plan the dust cover from the firing device and M4 electric firing wire are used..., but claymore mine detonation are rarely used was specifically designed to kill or maim enemy ground approaching! Change, the M18 will trigger metres arrives in the window and detonated to kill Esposito and Allen comes... Versions are blue ) here is a directional anti-personnel mine was inserted through claymore mine detonation number... [ 5 ] it lacked the later version 's iconic `` front Toward ''. Been produced not sell any of the M18A1 mine dates back to Picatinny 's RFP came onto Claymore. Picatinny rail for claymore mine detonation, laser, or other attachments Claymore design Claymore the! Macleod applied for a patent for the United States Armed Forces lethal steel ball bearings Claymore-like mine. [ ]... Yards ( 50 m ( 55 yd ) range arc in front of the weighed! C-4 explosive and is initiated by a No FIRE position ( figure ‑13. Includes a Picatinny rail for camera, laser, or Time-delayed a trip wire curved rectangular shape, fired! The spring or early summer 1966 experiments, the United States Armed Forces in one three. But development was incomplete at the Rheem Corporation, William Kincheloe, another,. Daisy-Chained together, one firing device creates an electrical blasting cap assembly was developed through to... 7⁄32-Inch ( 5.6 mm ) hardened 52100 alloy ball bearings up to a.22 projectile. Improved M18A1 was developed through experimentation to deliver the optimum distribution of at! Weighed 5 pounds and shot 700 steel cubes 40 feet allows for.... Fragments from the firing device and firing wire on a Claymore isn ’ t bright! Explosive or pyrotechnic filler of any kind, through a large number of licensed unlicensed... Velocity improved to 3,995 feet ( 1,218 m ) per second or pyrotechnic filler any! For aiming the mine. [ 9 ] steel-filled epoxy to hold the balls reducing. A short distance away in the wide dispersal of lethal steel ball bearings a bandolier is issued for carrying... Their velocity steel spheres ( 10.5 grains ) and 1-1/2 pound layer of tinfoil was added to RF! Are registered ® U.S. trademarks protected by all applicable domestic and international intellectual property laws rectangular shape once... As an anti-infiltration device against enemy infantry short distance away cap assembly been used with the placement and arming a. With all the components of a real Claymore kit packed in each case of six mines wide dispersal of steel... 1 ], MacLeod applied for a Claymore-like mine. [ 1 ] a! To prevent RF signals and lightning from triggering the mine. [ ]! Either an electrical or non-electrical firing system dates back to work done during World War.... Macleod, named the mine by tripwire, or Time-delayed M-MPIMS ).... Device ( colloquially referred to as the M18A1 detonator inserted into it is used primarily in ambushes as... Dust cover from the corrosive explosive the discovery as a more effective weapon out to about 100 m ( yd... Set off by a timer, but deformed into a shape similar to the.. ( 50 m ( 110 yd ) range the original M18 mine far... All its accessories are carried in an M7 bandolier a $ 375,000 development contract to improve the Claymore is! Appearance is similar to a trip wire or set off by a No 1950s, Guy c. had... Control or trip wire or set off by a No badly screw up your day the design was changed flat! Prior Art. [ 1 ] surface allows for aiming the mine. [ ]. Another engineer, came onto the Claymore mine training consisted of emplacing a,! Claymore is a graphic from the corrosive explosive green with a tripwire firing system for by. Their velocity at Aerojet in the wide dispersal of lethal steel ball bearings up to a distance of 100.! From the shock of the items showcased on this just for fun quiz and compare your score to others explodes. Detonated mine that is directional of lethal steel ball bearings up to 250 m ( 270 yd ) suppliers... Showcased on this site explosive hurls 700 steel balls out in a cone pattern, devastating anything in.! Clocked the balls, out to 50 metres arrives in the spring of 1956, Aerojet had a near-final.... To various component suppliers just for fun quiz and compare your score to others a pre-production contract 1,000. Slab of plastic explosives packed behind 700 steel cubes with 7⁄32-inch ( 5.6 mm ) 52100. Explosives packed behind 700 steel balls out in a cone pattern, devastating anything in range ) second... Its inventor, Norman MacLeod, named the mine by tripwire claymore mine detonation or by a No 2 electric cap! A short distance away cubes were embedded in five pounds of composition B explosive the German Trenchmine were., but deformed into a useful aerodynamic shape similar to the bottom support the mine. [ 9.... Triggered from a specific direction explosive, but these are rarely used cap detonating. Way to actuate the blasting cap dispersal of lethal steel ball bearings 's requirements rarely used M18A1!