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M141 Bunker Defeat Munition
The M141 Bunker Defeat Munition (BDM), or SMAW-D ("Disposable"), is a single-shot, shoulder-launched weapon designed to defeat hardened structures. The weapon was designed as a modification of the United States Marine Corps Shoulder-launched Multipurpose Assault Weapon (SMAW) to fill the void in the United States Army inventory of a "bunker buster" weapon.
==Service History==
Two candidates were evaluated for the US Army's BDM program. One candidate from McDonnell-Douglas (later Talley Defense Systems) which used the same warhead as the Marine Corps SMAW, but with a rocket motor with a shorter burn time, and another developed by Sweden's FFV for Alliant Techsystems (later Honeywell), which replaced the standard HEAT warhead of the AT4/M136 with the same warhead dual purpose warhead as used by the USMC SMAW. FFV designated the bunker buster version of the AT4 the FFV AT8. In 1996 the McDonnell-Douglas candidate was chosen. In a unique move, the US Army ordered one batch of 1,500 then a second batch of 4,500 which were placed in contingency storage for expedited issue to units in combat.〔''Jane's Infantry Weapon's 1995–96'' page 221〕 The SMAW-D was delivered to the Army in 1999.〔(designation-systems.net )〕
The conferees of the National Defense Authorization Act for Fiscal Year 1994 agreed that the Army's BDM and the Marine Corps' SRAW were too similar to justify separate long-term projects, and that the Army should pursue an interim BDM program. Congress limited BDM procurement to 6,000 units.
CNN news footage showed US Army Rangers firing M141s at various fortified caves during the Tora Bora operations against the Afghan Taliban and al Qaeda, being mistaken by the CNN reporters for AT4/M136 projectiles.〔After being fired, the projectile can be seen arching towards it target, by the exhaust nozzle in the rear which is still glowing from the heat of the burn-all-the-way in the launcher. Looks like the M141 projectile has a ruby tracer in the rear of the projectile.〕
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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