LGM-30 Minuteman III

About Minuteman III:

The LGM-30G Minuteman Intercontinental Ballistic Missile (ICBM) is a key element of the U.S. strategic deterrent forces. The Minuteman III is a strategic missile capable of delivering special weapons against a full range of targets. The missiles were manufactured by The Boeing Company and the production ended in December 1978.

The Minuteman Program began in 1958 and by April 1967, 1,000 Minuteman missiles were operational and installed in six sites across the U.S. The Minuteman II (first launched in 1964) was capable of striking from six to eight targets with far greater accuracy than its predecessor. The current version, Minuteman III, was first launched in 1968 and provides better accuracy, range and target capability. The latest configuration is the LGM-30G Minuteman III. The missile is currently undergoing modifications, which is described in the following.

The DoD Propulsion System Rocket Engine (PSRE) Life Extension Program (LEP) refurbishes/replaces Minuteman III post-boost propulsion system components produced in the 1970s. Deficiencies identified in several components may cause system failure/loss of performance and, in turn, cause potential mission failure. The program is required due to non-availability of replacement parts, material and component obsolescence and environmentally restricted chemicals and solvents. The program corrects age related degradation, reduces life cycle costs, and supports MM III availability/reliability through 2030 and the current 450-MM III USSTRATCOM alert requirement. The program is scoped to refurbish the 574 rocket engines necessary to support the alert requirements.

The total inventory, as of January 2011, is 574 missiles (450 MM III plus 124 flight and aging/surveillance tests).

Mission/Purpose:

The LGM-30G Minuteman III intercontinental ballistic missile, or ICBM, is an element of the strategic deterrent forces of the United States.

FY 2012 MM III DoD Program:

The purpose of the modifications budgeted in FY12 is to support the operational capability of the Minuteman ICBM through 2030. FY12 funds will be used to fund an additional labor production year. For more information, click to see the Complete FY 2012 MM III Budget.

Source: U.S. Department of Defense (DoD) and J. Kasper Oestergaard

Specifications | LGM-30G Minuteman III