421st Air Refueling Squadron

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"421st Bombardment Squadron" redirects here. For the 421st Bombardment Squadron (Heavy), see 847th Bombardment Squadron.
421st Air Refueling Squadron
421st ARS Boeing YKB-29T-90-BW Superfortress 1954.jpg
Experimental Boeing YKB-29T Superfortress 45-21734 of the 421st Air Refueling Squadron at Yokota AB, 1954
Active 1944-1946; 1953-1965
Country  United States
Branch  United States Air Force
Role Air Refueling
Decorations Distinguished Unit Citation
Air Force Outstanding Unit Award
Insignia
421st Air Refueling Squadron Emblem
Approved 1 March 1962		 175px

The 421st Air Refueling Squadron is an inactive United States Air Force unit. It was last assigned to the 41st Air Division at Yokota Air Base, Japan, where it was inactivated on 18 February 1965.

In 1985 the squadron was consolidated with the 421st Bombardment Squadron, Very Heavy, a World War II very heavy bombardment squadron that participated in the air offensive against Japan with Twentieth Air Force before moving to Clark Field, Philippines, where it was inactivated in 1946. Since consolidation the squadron has not been active.

History

World War II

File:421st Bombardment Squadron - Emblem.png
421st Bombardment Squadron, Very Heavy emblem (approved 2 November 1944)[1]

The 421st Bombardment Squadron was activated on paper in March 1944 at Dalhart Army Air Field, Texas as a Boeing B-29 Superfortress very heavy bombardment squadron.[1] It moved to Fairmont Army Airfield, Nebraska the day after activation, where it received its initial cadre from the 9th Bombardment Group. Because of aircraft availability, initial training missions were flown with Boeing B-17 Flying Fortress aircraft.[2] Once the squadron competed training, it moved to North Field, Tinian in the Mariana Islands of the central Pacific area in January 1945 and beame part of the XXI Bomber Command of Twentieth Air Force.[1] Its mission was the strategic bombardment of the Japanese Home Islands and the destruction of Japan's war-making capability.

The 421st flew "shakedown" missions against Japanese targets on Moen Island, Truk,[3] and other points in the Carolines and Marianas. The squadron began combat missions over Japan on 25 February 1945 with a firebombing mission over northeast Tokyo. The 421st continued to participate in wide area firebombing attack, but the first ten-day blitz resulted in the command running out of incendiary bombs. After that the squadron flew conventional bombing missions using high explosive bombs. The squadron earned two Distinguished Unit Citations for its attack on the industrial center of Yokohama in May 1945 and mining shipping lanes in the Shimonoseki Strait between Korea and Japan in July and August.[1][3]

The squadron continued attacking urban areas of major Japanese cities with incendiary ordnance until the end of the war in August 1945, causing massive destruction of urbanized areas. It also conducted raids against strategic objectives, bombing aircraft factories, chemical plants, oil refineries, and other targets in Japan. The squadron flew its last combat missions on 14 August when hostilities ended. Afterwards, its B-29s carried relief supplies to Allied prisoner of war camps in Japan and Manchuria.[verification needed]

The squadron was largely demobilized on Tinian during the fall of 1945. It remained in the western Pacific. The 421st moved to Clark Field in the Philippines in March 1946. It was inactivated at Clark on 15 June 1946. The squadron's low-hour aircraft were flown to storage depots in the United States.

Cold War

File:421st ARS Boeing B-50D-90-BO Superfortress 48-0088.jpg
421st Air Refueling Squadron Boeing KB-50J Superfortress 48-0088 in 1960.
File:421 Air Ref Sq (early).PNG
421st Air Refueling Squadron Emblem (approved 18 June 1954)

The 421st Air Refueling Squadron's origins were in an advanced detachment of tankers assigned to the 98th Bombardment Wing, which moved to Yokota Air Base, Japan from Spokane AFB, Washington. Shortly after arrival at Yokota, the Detachment was replaced by the 421st Air Refueling Squadron, which assumed its mission, equipment, and personnel. The mission of the squadron was to provide dedicated air refueling for in-flight refueling capable Far East Air Force (later Pacific Air Forces) bombers, fighters, and fighter bombers. The squadron was initially equipped with transferred Strategic Air Command (SAC) KB-29M Stratofortress bombers that were converted to tankers using a British-developed hose refueling system.

The squadron upgraded to KB-50 Superfortress tankers in 1958 which provided greater speed to refuel jet aircraft. KB-50s were modified about 1959 to KB-50J configuration which added a J-47 turbojet engine underneath each wing in place of the auxiliary fuel tanks to increase the speed of the aircraft.

Some aircraft and crews deployed to Don Muang Royal Thai Air Force Base, Thailand in 1961 to support USAF advisory tactical jet aircraft. Some of these aircraft ran low on fuel while still over South Vietnam. Some of the refuelings were carried out at such low altitudes that they came under hostile ground fire.

By 1964 the unit possessed almost all of the KB-50s remaining in the Air Force inventory, but its aircraft began to show signs of corrosion and structural fatigue. They were taken out of service in 1965, but it was considered too risky to fly them across the Pacific to storage at the Military Aircraft Storage and Disposal Center at Davis-Monthan AFB, Arizona. The squadron's aircraft were scrapped on their hardstands at Yokota.[4] The squadron inactivated and its mission was assumed by SAC Boeing KC-97 Stratotankers and Boeing KC-135 Stratotankers.

Lineage

421st Bombardment Squadron

  • Constituted as 421st Bombardment Squadron, Very Heavy on 28 February 1944
Activated on 11 March 1944
Inactivated on 15 June 1946[5]
Consolidated on 19 September 1985 with 421st Air Refueling Squadron as the 421st Air Refueling Squadron[6] (remained inactive)

421st Air Refueling Squadron

  • Constituted ca. 1 July 1953 as 421st Air Refueling Squadron, Medium
Activated on 8 July 1953
Redesignated as 421st Air Refueling Squadron, Fighter-Bomber
Redesignated as 421st Air Refueling Squadron, Tactical on 1 July 1958
Inactivated on 18 February 1965
Consolidated on 19 September 1985 with 421st Bombardment Squadron as the 421st Air Refueling Squadron, Heavy[6] (remained inactive)

Assignments

Stations

Aircraft

Awards and Campaigns

Award streamer Award Dates Notes
Streamer PUC Army.PNG Distinguished Unit Citation 28 May 1945 421st Bombardment Squadron Yokahama, Japan[1]
Streamer PUC Army.PNG Distinguished Unit Citation 27 July 1945 - 14 August 1945 421st Bombardment Squadron Japan and Korea[1]
AFOUA Streamer.JPG Air Force Outstanding Unit Award 1 July 1960 - 31 March 1962 421st Air Refueling Squadron[7]
AFOUA Streamer.JPG Air Force Outstanding Unit Award 1 November 1962 - 15 March 1964 421st Air Refueling Squadron[7]
AFOUA Streamer.JPG Air Force Outstanding Unit Award 9 June 1964 - 14 October 1964 421st Air Refueling Squadron[7]
Campaign Streamer Campaign Dates Notes
Streamer APC.PNG Air Offensive, Japan 421st Bombardment Squadron[1]
Streamer APC.PNG Eastern Mandates 421st Bombardment Squadron[1]
Streamer APC.PNG Western Pacific 421st Bombardment Squadron[1]

References

Notes

  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 Lua error in package.lua at line 80: module 'strict' not found.
  2. ↑ Abstract, Initial History of 504th Bombardment Group, Very Heavy (retrieved 15 August 2013)
  3. ↑ 3.0 3.1 Lua error in package.lua at line 80: module 'strict' not found.
  4. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  5. ↑ 5.0 5.1 5.2 5.3 Lineage, assignments, stations and components prior to 1953 are in Maurer, Combat Squadrons, p. 515
  6. ↑ 6.0 6.1 Department of the Air Force/MPM Letter 662q, 19 Sep 85, Subject: Reconstitution, Redesignation, and Consolidation of Selected Air Force Tactical Squadrons
  7. ↑ 7.0 7.1 7.2 AF Pamphlet 900-2, Unit Decorations, Awards and Campaign Participation Credits Department of the Air Force, Washington, DC, 15 Jun 1971, p. 374

Bibliography

 This article incorporates public domain material from websites or documents of the Air Force Historical Research Agency.

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  • Lua error in package.lua at line 80: module 'strict' not found.
  • Lua error in package.lua at line 80: module 'strict' not found.
  • AF Pamphlet 900-2, Unit Decorations, Awards and Campaign Participation Credits Department of the Air Force, Washington, DC, 15 Jun 1971

External links

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