XM1111 Mid-Range Munition
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.
MRM-CE | |
---|---|
Type | Dual use, B-LOS and LOS tank fired munition |
Service history | |
In service | Cancelled |
Production history | |
Manufacturer | Raytheon Missile Systems |
Unit cost | unknown |
Specifications | |
Mass | unknown |
Length | unknown |
Diameter | 120mm |
Warhead | Shaped Charge or Kinetic energy penetrator |
Detonation mechanism | none |
Engine | none required |
Wingspan | none |
Operational range | 12.1 km (7.5 mi) |
Flight altitude | N/A |
Maximum speed | approx. 1700m/s (at launch) |
Guidance system | Semi-active laser and uncooled IIR seeker |
Launch platform | M1 Abrams, Leopard 2 |
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 HEAT 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 covered system design and development.
The Mid-Range Munition was cancelled in 2009 along with Future Combat Systems.[1]
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.[2]
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. [3][4]
MRM-CE
The missile/projectile was to be a high-velocity multiple-mission projectile for line-of-sight and beyond-line-of-sight shots. In line of sight, it would operate using laser guidance or an uncooled imaging infrared seeker (IIR). In BLOS, the shell would be fired in a ballistic arc, and would glide to seek out its own targets. The BLOS mission could be autonomous or use FO directed target designation.
The MRM-CE uses a dual-mode MMW, imaging infrared (IIR) autonomous seeker or SAL is used to acquire and guide towards the target with high accuracy. The dual-mode seeker was developed and successfully demonstrated during a two-year, Army-managed science and technology program. MRM-CE refined seeker technology developed as part of the XM1007 Tank Extended Range Munition (TERM) program.
For a beyond-line-of-sight mission, the chemical energy warhead was a better solution; with proven lethality against the primary target of threat armor, and better effects against the secondary targets of buildings, fortifications, and light armor than a less versatile kinetic energy penetrator.
Specifications
- Warhead: Shaped charge HEAT.
- Guidance: Dual-mode MMW/imaging infrared or Semi-active laser.[7]
Program status
References
- MRM cancelled - Soldiergeek.com, July 11, 2011 Archived November 9, 2011, at the Wayback Machine
- ATK Forms 'Team MRM' to Compete for the U.S. Army's XM1111 Mid-Range Munition Program - ATK PR
- X-ROD - Global Security
- XM1007 Tank Extended Range Munition (TERM) - Global Security
- ATK'S MRM-KE Autonomously Searched, Guided And Hit Tank
- ATK Achieves Success in MRM-KE Test - Deagel
- MRM KE / CE 120mm - Defense Update
- M-1 Gets 8,600 Meter Kill - Strategy Page