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Dual-Purpose Improved Conventional Munition
A Dual-Purpose Improved Conventional Munition (DPICM) is an artillery or surface-to-surface missile warhead designed to burst into sub-munitions at an optimum altitude and distance from the desired target for dense area coverage. The sub-munitions are designed for both anti-armor and antipersonnel attack. Some sub-munitions may be designed for delayed reaction or mobility denial (mines). The air-to-surface variety of this kind of munition is better known as a cluster bomb. They are banned in some countries under the Convention on Cluster Munitions.
==United States DPICM projectiles==
Development work for DPICM projectiles began in the late 1950s, with the first projectile, the 105 mm M444 entering service in 1961. Its submunitions were simple bounding anti-personnel grenades (ICM). Production of the M444 ended in the early 1990s.
The first true DPICM was the 155 mm M483, produced in the 1970s. By 1975, an improved version, the M483A1, was being used. The projectile carried 88 M42/M46 grenade-like dual purpose submunitions. The 155 mm M864 projectile entered production in 1987, and featured a base bleed that enhances the range of the projectile, although it still carries the same M42/M46 grenades. The base bleed mechanism reduces the submunition count to 72. Work was budgeted in 2003 to retrofit the M42/M46 grenades with self-destruct fuses to reduce the problem of "dud" submunitions that do not initially explode but may explode thereafter upon handling.
Work on 105 mm projectiles started in the late 1990s based around the M80 submunition. The eventual results were two shells, the M915 intended for use with the M119A1 light towed howitzer and the M916 developed for the M101/M102 howitzers.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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