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The XM1111 Mid-Range Munition (MRM) was a 120 mm precision guided munition developed for the Rheinmetall 120mm Gun (known as the "M256" in the US military) used by several Western tanks. It was also intended to fulfill a requirement for Future Combat Systems (canceled) for a long-range, Beyond Line of Sight tank munition. The U.S. Army awarded two contracts in a competition to validate the requirement, one for a kinetic energy penetrator round (MRM-KE) and one for a chemical energy warhead round (MRM-CE). In December 2007, Raytheon's CE-based concept was awarded the system-design-and-development contract to develop the round. Valued at $232.3 million, the 63-month contract covers system design and development. The Mid-Range Munition was cancelled in 2009 along with Future Combat Systems.〔(MRM cancelled ) - Soldiergeek.com, July 11, 2011〕 ==MRM-KE== The MRM-KE (Mid-Range Munition-Kinetic Energy) was an implementation of the MRM under development by Alliant Techsystems, Lockheed Martin, BAE Systems and HR Textron.〔(ATK Forms 'Team MRM' to Compete for the U.S. Army's XM1111 Mid-Range Munition Program - ATK PR )〕 The missile/projectile was designed to be used as a high-velocity penetrator for line-of-sight and beyond-line-of-sight shots. In line of sight, it would operate using laser guidance or a millimeter wave seeker. In BLOS, the shell would be fired in a ballistic arc, and would seek out its own targets. The missile used a kinetic energy penetrator to penetrate enemy armor. This effect was improved by a rocket motor that sped the munition up. It steered with impulse thrusters. MRM-KE used technology developed as part of the X-Rod and XM1007 Tank Extended Range Munition (TERM) programs, both of which have been cancelled. 〔(X-ROD - Global Security )〕〔(XM1007 Tank Extended Range Munition (TERM) - Global Security )〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「XM1111 Mid-Range Munition」の詳細全文を読む スポンサード リンク
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