Oct. 9, 1958 – The U.S. Air Force selected Boeing as the prime contractor and original equipment manufacturer for the Minuteman ICBM. Within a year, Boeing launched the first tethered Minuteman I mockup. Minuteman was the first ICBM to use solid rather than liquid propellant in its rocket motors, and it was smaller in size. Minuteman I could be launched more quickly than earlier ICBMs.
Oct. 24, 1962 – The first Minuteman I missile field went on alert a year ahead of schedule, at Malmstrom Air Force Base, Montana. Minuteman I achieved initial operational capability in November of 1962.
July 1963 – Minuteman II went on alert. Minuteman II deployment was complete by the summer of 1965. Boeing designed Minuteman II with greater firepower, improved range and greater targeting flexibility.
June 1968 – The first Minuteman III training missile shipped from Air Force Plant 77 — operated by Boeing at Hill Air Force Base, Utah — to Boeing in Seattle, Wash., for acceptance testing and checkout. Air Force Plant 77 was the final assembly point for all Minuteman missiles.
1970 – Minuteman III began deployment, and full operational capability was declared in April 1975. It had an expected lifespan of 10 years.
1974 – Boeing becomes a primary contractor for the operation and maintenance of Little Mountain Test Facility near Hill Air Force Base, Utah.
1980s – Boeing modified Minuteman silos for the Peacekeeper ICBM, which deployed in 1986.
August 1993 – Boeing began to redesign the Minuteman III guidance electronics to extend the service life of the missile beyond 2020. Boeing completed 82 months – or nearly seven years – of consecutive on-time or early deliveries of the upgraded missile guidance sets (MGS) to the U.S. Air Force, delivering the final upgraded MGS in February of 2009.
June 24, 1998 – A Minuteman III ICBM equipped with the upgraded guidance system completed its first successful test flight from Vandenberg Air Force Base, California.
September 2014 – Boeing received an Air Force contract to develop a new Guidance Data Acquisition System for the Minuteman III ICBM.
January 2015 – Boeing receives an Air Force contract to continue sustaining engineering for Minuteman III ICBM guidance systems.
August 2017 – Boeing receives one of two contracts to mature technologies for the Ground Based Strategic Deterrent.