The MGM-140 Army Tactical Missile System (ATacMS) is a surface-to-surface missile (SSM), range over 100 miles, with solid propellant, 13 feet height and 24 inches diameter, manufactured by Lockheed Martin. It has some variations in munition payload and range. The Block I missile contains 950 M74 submunitions with a range of 128 km. The Block IA missile contains 275 M74 submunitions and a greater range than the Block I.
The ATACMS can be fired from MLRS launchers, including the M270, M270 IPDS, M270A1, and HIMARS. An ATACMS launch container has a lid patterned with six circles like an standard MLRS rocket lid.
The first use of the ATACMS in a combat capability was during Operation Desert Storm, where a total of 32 missiles were fired from the M270 MLRS.
During the Operation Iraqi Freedom more than 450 missiles were fired.
The South Korean Army has purchased 111 ATACMS Block I and 110 ATACMS Block IA missiles.
MGM-164 ATacMS - Block II
A new Block II variant was designed to carry a payload of 13 Brilliant Anti-Tank (BAT) munitions manufactured by Northrop Grumman. However, in late 2003 the U.S. Army terminated the funding for the BAT-equipped ATACMS and therefore the MGM-164A never became fully operational.
MGM-168 ATacMS - Block IVA
A new Block IVA variant was designed to carry a 500 lb unitary HE warhead for the M74 bomblets. It uses the same GPS/INS guidance as the MGM-140B. The development contract was placed in December 2000, and flight-testing began in April 2001. The first production contract was awarded in March 2002.
On 20 December 2010, Lockheed Martin was awarded a contract for $916 million for 226 ‘tactical missiles’ and 24 launcher modification kits for the UAE and Taiwan.
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