490th Missile Squadron
|490th Missile Squadron|
LGM-30G Minuteman III test launch at Vandenburg AFB, California
|Active||15 September 1942 - 2 November 1945
4 April 1947 - 27 June 1949
1 September 1955 - 25 June 1961
18 December 1961 - Present
|Branch||United States Air Force|
|Role||Intercontinental ballistic missile|
|Part of||341st Operations Group
Air Force Global Strike Command
|Garrison/HQ||Malmstrom Air Force Base, Montana|
World War II (Asia-Pacific Theater)
Distinguished Unit Citation
Air Force Outstanding Unit Award (17x)
|490th Missile Squadron emblem|
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.
World War II
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.
Strategic Air Command
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.
Intercontinental Ballistic Missile Squadron
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 490th Bombardment Squadron (Medium) on 14 Aug 1942
- Activated on 15 Sep 1942
- Re-designated 490th Bombardment Squadron, Medium, on 1 Aug 1943
- Inactivated on 2 Nov 1945
- Re-designated 490th Bombardment Squadron, Light, on 11 Mar 1947
- Activated in the Reserve on 4 Apr 1947
- Inactivated on 27 Jun 1949
- Re-designated 490th Bombardment Squadron, Medium, on 7 Jun 1955
- Activated on 1 Sep 1955
- Discontinued, and inactivated, on 25 Jun 1961
- Re-designated 490th Strategic Missile Squadron (ICBM-Minuteman), and activated, on 18 Dec 1961
- Organized on 1 May 1962
- Re-designated 490th Missile Squadron on 1 Sep 1991.
- Attached to 341st Bombardment Group, 25 Oct 1943-c. 7 Jan 1944
- 341st Bombardment Group, 7 May-2 Nov 1945
- 312th Fighter Wing for operational control, 7 May-c. 25 Aug 1945
- 341st Bombardment Group, 4 Apr 1947-27 Jun 1949
- 341st Bombardment Wing, 1 Sep 1955-25 Jun 1961
- Strategic Air Command, 18 Dec 1961
- 341st Strategic Missile Wing, 1 May 1962
- 341st Operations Group, 1 Sep 1991–Present
Aircraft and Missiles
- B-25 Mitchell (1942–1945)
- AT-6 Texan (1947–1949)
- AT-11 Kansan (1947–1949)
- B-47 Stratojet (1956–1961)
- LGM-30A/B Minuteman I, 1962–1968
- LGM-30F Minuteman II, 1968–1991
- LGM-30G Minuteman III, 1996–Present
- Missile Alert Facilities (K-O flights, each controlling 10 missiles) are located as follows:
- K-01 1.7 mi ExNE of Harlowton MT,
- L-01 1.3 mi NxNE of Judith Gap MT
- M-01 4.1 mi NE of Moore MT,
- N-01 11.0 mi WxNW of Grassrange MT,
- O-01 1.5 mi E of Roy MT,
- Maurer, Maurer, ed. (1983) . Air Force Combat Units of World War II (PDF) (reprint ed.). Washington, DC: Office of Air Force History. ISBN 0-912799-02-1. LCCN 61060979.
- Malmstrom AFB Minuteman Missile Site Coordinates