Minuteman III

Minuteman III  

Minuteman III is a silo-based intercontinental ballistic missile with three solid-propellant stages and a fourth stage liquid-propellant rocket engine. It has been the prime land-based nuclear deterrent for the United States for more than 40 years, and plans are in place to ensure the Minuteman III continues this role past the year 2030. Through Northrop Grumman’s legacy companies, Northrop Grumman has been a U.S. Air Force industry partner since the very beginnings of ICBM production. Northrop Grumman manufactured solid rocket motor stages for Minuteman I, Minuteman II, Minuteman III and Peacekeeper. Northrop Grumman was responsible for refurbishment of all three Minuteman III solid-propellant stages as part of the Propulsion Replacement Program.

Northrop Grumman is the Prime contractor for sustaining Minuteman III propulsion under the Propulsion Subsystem Support Contract. Northrop Grumman leads a team of original equipment manufacturers and is responsible for all solid propulsion, liquid propulsion, ordnance, flight controls and batteries.

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