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List of USAF Strategic Missile Wings assigned to Strategic Air Command

File:Titan2 color silo.jpg
Test launch of a LGM-25C Titan II ICBM from underground silo 395-Charlie at Vandenberg AFB, during the mid 1960s
File:SAC Shield.svg
Emblem of Strategic Air Command (USAF)

This is a list of the three generations of ICBMs produced and deployed by the United States during the Cold War, with a fourth generation ICBM being deployed in small numbers at the end of the Cold War in 1991. Development of Intercontinental ballistic missile (ICBM) technology as an outgrowth of the World War II V-2 rocket technology developed by Germany, and the mating of nuclear weapon technology developed by the United States created an entire new method of warfare. Due to their great range and firepower, in an all-out nuclear war, land-based ICBMs would carry most of the destructive force, with long-range, nuclear-armed bombers and Submarine-launched ballistic missiles carrying the remainder. These three components were collectivity referred to as the United States nuclear triad. The United States Air Force Strategic Air Command (SAC) was the US military command and control organization for ICBMs and nuclear-armed bombers. Over a million men and women served in SAC, on daily alert 24 hours a day, with a mission to preserve the peace and deter any aggressor nation from attacking the United States and its allies.

Note: The PGM-17 Thor and PGM-19 Jupiter Medium-range ballistic missiles (MRBM), or the SM-62 Snark intercontinental cruise missile developed by the US Air Force in the 1950s are not included on this list.

SM-65 Atlas

The First Generation SM-65 Atlas, was the United States' first successful ICBM, flown in 1957,and taken out of active service in 1965. Strategic Air Command deployed Atlas model D, Atlas model E, and Atlas model F. The Atlas used liquid fuel and it took 15 minutes to pump 249,000 pounds of propellant aboard the "quick firing" Atlas F. It was dangerous work. Four Atlas silos were destroyed when propellant-loading exercises went awry.

As an emergency measure, from September 1959 until 1 May 1964the Air Force deployed three Atlas D missiles on open launch pads at Vandenberg AFB, California, under the control of the 576th Strategic Missile Squadron, 704th Strategic Missile Wing. Completely exposed to the elements, the three missiles were serviced by a gantry crane with one missile on alert at all times.

Atlas model D missiles were deployed to the following units:

Francis E. Warren AFB, Wyoming from 2 September 1960-1 Jul 1964
564th Strategic Missile Squadron (6 missiles)
565th Strategic Missile Squadron (9 missiles)
Offut AFB, Nebraska from 30 March 1961-1 Oct 1964
549th Strategic Missile Squadron (9 missiles)

Atlas model E missiles were deployed to the following units:

Fairchild Air Force Base, Washington from 28 September 1961-17 February 1965
567th Strategic Missile Squadron, (9 missiles)
Forbes AFB, Kansas from 10 October 1961-4 January 1965
548th Strategic Missile Squadron, (9 missiles)
  • 389th Strategic Missile Wing
Francis E. Warren AFB, Wyoming from 20 November 1961-4 January 1965
566th Strategic Missile Squadron (9 missiles)

Atlas model F missiles were deployed to the following units:

NASA used a modified version of the Atlas-D (Atlas LV-3B) in the Project Mercury program and launched four astronauts into space in 1962–1963. A variant was also used in the Project Gemini program from 1966.

HGM-25A Titan I

The First Generation HGM-25A Titan I, was the United States' first true multistage ICBM and flown from 1959-1965.It required liquid fuel. Two Titan I silos burnt down with refueling exercises

LGM-25C Titan II

The Second Generation LGM-25C Titan II, first flown in 1961 and taken out of active service in 1987, was the successor to the Titan I, and carried a payload twice as heavy. It also used sortable propellants, which reduced the time to launch and permitted it to be launched from its silo. Titan II carried the largest single warhead of any US ICBM to date.

A modified version of the Titan II (Titan II GLV) was used during the NASA Project Gemini program with ten manned launches of spacecraft. (1965–1966).

LGM-30 Minuteman

The Third Generation LGM-30 Minuteman, first flown in 1961 was developed to replace the hazards inherent in the caustic, volatile liquid-fuel systems of the Atlas and Titan ICBM's. Two innovations gave the Minuteman a long practical service life: a solid rocket booster making the Minuteman faster to launch than other ICBMs, and a digital flight computer, one of the very first recognizably modern embedded systems.




Today, all United States ICBMs are LGM-30G Minuteman IIIs. The Air Force planned to keep the missile in service until 2020, but it may be upgraded to stay in service until 2030.

LGM-118 Peacekeeper

The fourth-generation LGM-118 Peacekeeper initially known as the "MX missile" (for Missile-eXperimental), was a land-based ICBM deployed by the United States starting in 1986. A total of 50 missiles were deployed. They were withdrawn from service in the early 2000s (decade), the last taken offline in 2005, primarily for budetary reasons. Armed with up to 10 re-entry vehicles each carrying a W-87 thermonuclear warhead, the Peacekeeper was the most powerful ICBM deployed by the United States.


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Further reading

  • Maurer, Maurer, ed. (1982) [1969]. Combat Squadrons of the Air Force, World War II (PDF) (reprint ed.). Washington, DC: Office of Air Force History. ISBN 0-405-12194-6. LCCN 70605402. OCLC 72556. 5 (Squadron Lookups)
  • Mueller, Robert, Air Force Bases Volume I, Active Air Force Bases Within the United States of America on 17 September 1982, Office of Air Force History, 1989 (McConnell AFB section)
  • Ravenstein, Charles A. Air Force Combat Wings Lineage and Honors Histories, 1947–1977. Maxwell AFB, Alabama: Office of Air Force History, 1984. ISBN 0-912799-12-9. (Wing Lookups)