The 490th Missile Squadron (490 MS) is a United States Air Force unit. It is assigned to the 341st Operations Group, stationed at Malmstrom AFB, Montana. The 490 MS is equipped with the LGM-30G Minuteman III Intercontinental ballistic missile (ICBM), with a mission of nuclear deterrence.
Activated as a B-25 Mitchell medium bomber squadron at Karachi, India, 16 September 1942, assigned to 341st Bombardment Group (Medium), which was activated the day before. Cadre personnel were drawn from 11th Bombardment Squadron and other units in India. After receiving full complement of ground support personnel 1 December 1942, Ground Echelon began transfer to Camp Moire, Ondal (Aandal), India 30 December. Air Echelon transferred 1 February 1943 with first combat mission on 18 Feb. Operating under Tenth Air Force for next two years, squadron primarily performed interdiction missions against Japanese lines of communications as well as supporting British ground forces in Burma during 1943 and 1944. The squadron interrupted combat operations and flew supplies from Chittagong, India to Allied Forces defending Imphal, India between 20 May and 30 June 1944 before resuming combat operations. 490th Bomb Squadron developed and perfected bridge destroying bombing technique and became known as "Burma Bridge Busters." Assumed secondary role of dropping leaflets over Burma for the United States Office of War Information from, January–March 1945. Reassigned to Fourteenth Air Force in China; beginning combat operations in China on 16 April 1945; squadron interdicted enemy lines of communication and supported Chinese ground forces until the end of the war.
Personnel demobilized in India, squadron returned to the United States and inactivated as a paper unit.
Was reactivated in 1955 as a Strategic Air Command B-47 Stratojet squadron . Trained in air refueling and strategic bombardment operations with the B-47. in 1961, the squadron began transferring its B-47s to other SAC wings and became non-operational.
Reactivated on 1 May 1962 as an ICBM squadron assigned to the 341st Missile Wing at Malmstrom AFB, Montana. Initially equipped with 50 LGM-30A Minuteman Is in early 1962, becoming SAC's third operational Minuteman ICBM squadron. Upgraded to the Minuteman IB in 1964; Minuteman IIF, in 1967. Received control of LGM-30G Minuteman III silos from inactivating 321st Strategic Missile Wing at Grand Forks AFB, North Dakota in 1996; Minuteman IIs being retired. Has maintained ICBMs on alert ever since.
In 2010 The United States Air Force Global Strike Command started again with their famous competitions to bring back the glory days of the 1960s. The Global Strike Challenge was hosted at Barksdale Air Force on November 16 and 17. The 490th Missile Squadron sent Captain Kevin Hullihan and 1Lt Brian J. Marlow to compete in this competition. The crew achieved the best score in Emergency war orders, resulting in earning the Neary Trophy.
In 2011 1Lt John Malek and 1Lt Matthew Ditson competed in the Global Srike Competition and won the McMahon Trophy for Best ICBM Weapon System score. In addition to the McMahon they also played a key role in earning the Klotz Trophy for Best ICBM Operations.Constituted as the 490th Bombardment Squadron (Medium) on 14 August 1942
Activated on 15 September 1942
Redesignated 490th Bombardment Squadron
, Medium on 1 August 1943
Inactivated on 2 November 1945
Redesignated 490th Bombardment Squadron, Light on 11 March 1947
Activated in the reserve on 4 April 1947
Inactivated on 27 June 1949
Redesignated 490th Bombardment Squadron, Medium on 7 June 1955
Activated on 1 September 1955
Discontinued and inactivated on 25 June 1961
Redesignated 490th Strategic Missile Squadron (ICBM-Minuteman) and activated on 18 December 1961 (not organized
Organized on 1 May 1962
Redesignated 490th Missile Squadron
on 1 September 1991
341st Bombardment Group, 15 September 1942
Tenth Air Force, 25 October 1943 (attached to 341st Bombardment Group until c. 7 January 1944)
341st Bombardment Group, 7 May-2 November 1945 (attached to 312th Fighter Wing for operational control, 7 May until c. 25 Aug 1945)
341st Bombardment Group, 4 April 1947 - 27 June 1949
341st Bombardment Wing, 1 September 1955 - 25 June 1961
Strategic Air Command, 18 December 1961 (not organized)
341st Strategic Missile Wing, 1 May 1962
341st Operations Group, 1 September 1991 – present
North American B-25 Mitchell (1942–1945)
North American AT-6 Texan (1947–1949)
Beechcraft AT-11 Kansan (1947–1949)
Boeing B-47 Stratojet (1956–1961)
LGM-30A/B Minuteman I, 1962–1968
LGM-30F Minuteman II, 1968–1991
LGM-30G Minuteman III, 1996–Present
490th Missile Squadron Launch Facilities
Missile Alert Facilities (K-O flights, each controlling 10 missiles) are located as follows: