M21 mine
Encyclopedia
The M21 is a circular U.S.
anti-tank landmine that uses a Misznay Schardin effect warhead. The mine uses an M607 pressure fuse, which can be adapted as a tilt rod fuse. The mine is triggered either by pressure, or by the tilt rod being forced beyond 20 degrees from the vertical by a force of more than 1.7 kg, either of these actions results in pressure being transferred via a bearing cap to a Belleville spring, which inverts, driving the firing pin into the M46 detonator. The M46 charge first ignites a black powder charge, which blows off the mines cover, and clears any earth or debries that may have been on top of the mine. A fraction of a second later the main warhead is triggered, driving and compressing a steel plate upwards, with enough force to penetrate 76 mm of armour at a distance of 530 mm. Approximately 200,000 were produced in the U.S. and a licensed copies, the K441 and K442, were produced in South Korea
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United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...
anti-tank landmine that uses a Misznay Schardin effect warhead. The mine uses an M607 pressure fuse, which can be adapted as a tilt rod fuse. The mine is triggered either by pressure, or by the tilt rod being forced beyond 20 degrees from the vertical by a force of more than 1.7 kg, either of these actions results in pressure being transferred via a bearing cap to a Belleville spring, which inverts, driving the firing pin into the M46 detonator. The M46 charge first ignites a black powder charge, which blows off the mines cover, and clears any earth or debries that may have been on top of the mine. A fraction of a second later the main warhead is triggered, driving and compressing a steel plate upwards, with enough force to penetrate 76 mm of armour at a distance of 530 mm. Approximately 200,000 were produced in the U.S. and a licensed copies, the K441 and K442, were produced in South Korea
South Korea
The Republic of Korea , , is a sovereign state in East Asia, located on the southern portion of the Korean Peninsula. It is neighbored by the People's Republic of China to the west, Japan to the east, North Korea to the north, and the East China Sea and Republic of China to the south...
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Specifications
- Diameter: 229 mm
- Height: 206 mm
- Height with tilt rod: 813 mm
- Weight: 7.83 kg
- Explosive content: 4.9 kg of Composition H6Composition H6Composition H6 is a castable military explosive compound composed of the following percentages by weight:* 45% RDX* 30% TNT* 20% powdered aluminium* 5% paraffin wax as a phlegmatizing agent....
- Operating pressure:
- pressure: 132 kg
- tilt: 1.7 kg