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This force has shrunk to 400 Minuteman III missiles as of September 2017, [17] deployed in missile silos around Malmstrom AFB, Montana; Minot AFB, North Dakota; and Francis E. Warren AFB, Wyoming. [18] The Minuteman III will be progressively replaced by the new LGM-35 Sentinel ICBM, to be built by Northrop Grumman, [19] beginning in 2030. [20]
Minuteman I: US Boeing 8,900 km 29,000 kg 1.2 Mt Inactive 1961 No Silo 30 Minuteman II: US Boeing 10,200 km 33,000 kg 1.2 Mt Inactive 1965 No Silo 31 LGM-118 Peacekeeper: US Boeing, Martin Marietta, TRW, 14,000 km 96,750 kg 10x 300 kt Inactive 1983 Yes Silo 120 m 32 Midgetman: US Martin Marietta: 11,000 km 13,600 kg 475 kt Inactive 1992 No
The D37D Minuteman III flight computer was initially supplied with the LGM-30G missile, as part of the NS-20 navigation system. The NS-20 D37D flight computer is a miniaturized general purpose (serial transmission) digital computer. The new NS-50 missile guidance computer (MGC) is built around a 16-bit high-speed microprocessor chip set.
The United States military said it carried out a test of an unarmed Minuteman III intercontinental ballistic missile to "validate and verify" the effectiveness
The first true MIRV design was the Minuteman III, first successfully tested in 1968 and introduced into actual use in 1970. [5] [6] [7] The Minuteman III held three smaller W62 warheads, with yields of about 170 kilotons of TNT (710 TJ) each in place of the single 1.2 megatons of TNT (5.0 PJ) W56 used on the Minuteman II. [8]
Topol-M launch from silo Minuteman III launch from Vandenberg Space Force Base, California, United States of America on 9 February 2023.. An intercontinental ballistic missile (ICBM) is a ballistic missile with a range greater than 5,500 kilometres (3,400 mi), [1] primarily designed for nuclear weapons delivery (delivering one or more thermonuclear warheads).
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This was the fourth Minuteman III missile test of 2023 from Vandenberg, with weapons typically traveling to a predetermined target in the central Pacific Ocean.