Claymore
From 7th Cavalry Regiment Wiki
The Claymore or M18A1 Claymore Antipersonnel Mine is a directional anti-personnel mine used by the U.S. military. It was named after the large Scottish sword by its inventor, Norman A. MacLeod. The Claymore fires shrapnel, in the form of steel balls, out to about 100 meters within a 60° arc in front of the device. It is used primarily in ambushes and as an anti-infiltration device against enemy infantry. It is also of some use against unarmored vehicles. It is an available equipment in COD4.
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History
The development of the M18A1 mine dates back to work done during World War II. The Misznay-Schardin effect was independently discovered during World War II by Misznay, a Hungarian, and Dr. Hubert Schardin, a German. 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. Schardin spent some time developing the discovery as a side-attack anti-tank weapon, but development was incomplete at the end of the war. Schardin also spent time researching a "Trench mine" that used a directional fragmentation effect.
Design Details
The M18A1 Claymore mine consists of a horizontally convex green plastic case (inert training versions are blue). The shape was developed through experimentation to deliver the optimum distribution of fragments at 50 m (55 yd) range. The case has the words "Front Toward Enemy" embossed on the front surface of the mine. A simple open sight on the top surface is provided for aiming the mine. Two pairs of scissor legs attached to the bottom support the mine and allow it to be aimed vertically. Either side of the sight are fuse wells set at 45 degrees to the vertical. Internally the mine contains a layer of C4 explosive on top of which is a matrix of approximately seven hundred 1/8 inch diameter steel balls (about as big as #4 birdshot) set into an epoxy resin.
When the M18A1 is detonated, the explosion drives the matrix of 700 spherical fragments out of the mine at a velocity of 1,200 m/s (3,937 ft/s) [1], at the same time breaking the matrix into individual fragments. The spherical steel balls are projected in a 60° fan-shaped pattern that is 2 m (6 ft 7 in) high and 50 m (55 yd) wide at a range of 50 m (55 yd). The force of the explosion deforms the relatively soft steel fragments into a shape similar to a .22 rimfire projectile
Game usage
COD4
Claymores are obtained when a player takes the Claymore x2 perk. When activated, the Claymore will make a single clicking sound, before detonating (.83 sec. delay). A Claymore can be spotted by the red lasers it produces or with the Bomb Squad perk. Defeating a Claymore can be done by throwing a grenade, or other explosives at its position or shooting the mine. Although not harmful to the person setting it down when detonated if said person is standing behind it, it will kill or seriously injure a player if it is detonated with them in front of it.
