820th Bombardment Squadron

History

Organization and antisubmarine warfare

The squadron was first activated at Charleston Army Air Field, South Carolina in October 1942 as the 521st Bombardment Squadron, one of the original squadrons of the 378th Bombardment Group, located at Langley Field, Virginia. The squadron was equipped with a mix of Douglas O-46s and Lockheed B-34s. The squadron mission was to search for German U-boats off the southeast Atlantic coast. Although the Navy was responsible for long range antisubmarine patrolling, it lacked the aircraft to perform the mission and the Army Air Forces (AAF) performed the mission, even though its crews lacked proper training.

In October 1942, the AAF organized its antisubmarine forces into the single Army Air Forces Antisubmarine Command, which established the 25th Antisubmarine Wing the following month to control its forces operating over the Atlantic. Its bombardment group headquarters, including the 378th, were inactivated and the squadron, redesignated the 16th Antisubmarine Squadron in November, was assigned directly to the 25th Wing in December.

Combat in the Pacific

In September 1943, the squadron moved to Hammer Field, California. There, it began to train with North American B-25 Mitchells and was assigned to the 41st Bombardment Group and became the 820th Bombardment Squadron. In October, it moved to Hickam Field, Hawaii, where it completed its combat training. It moved to Hawkins Field on Tarawa in the Gilbert Islands in December. There, it entered combat and attacked enemy installations, airfields, and shipping in the Marshall Islands in preparation for the invasion by US forces. After February 1944, the squadron staged through captured fields on Eniwetok to attack shipping in the Caroline Islands. In April, the squadron moved to Makin Airfield, Makin, Gilbert Islands, where its operations were primarily attacks on enemy shipping and on Japanese installations on islands that had been bypassed as American forces moved westward through the Pacific.

In October 1944, the squadron was withdrawn from combat operations and returned to Hawaii, where it began training with rockets at Wheeler Field. At Wheeler, it also received new Mitchell bombers. It completed training in May and left Hawaii for Okinawa, arriving at Yontan Airfield in June. While it flew some missions against airfields in China, it primarily bombed airfields, railways, and harbor facilities on Kyushu until August 1945. After V-J Day, the squadron remained on Okinawa until December 1945. Although the rest of the 41st Group moved to the Philippines, the 820th returned to the United States and was inactivated at the port of embarkation on 4 January 1946.

Lineage

• Constituted as the 521st Bombardment Squadron (Heavy) on 13 October 1942 : Activated on 18 October 1942 : Redesignated: 16th Antisubmarine Squadron (Heavy) on 29 November 1942 : Redesignated: 820th Bombardment Squadron, Medium on 22 September 1943 : Inactivated on 4 January 1946

Assignments

• 378th Bombardment Group, 18 October 1942
• 25th Antisubmarine Wing, 14 December 1942
• 41st Bombardment Group, 11 October 1943 – 4 January 1946

Stations

• Charleston Army Air Field, South Carolina, 18 October 1942
• Hammer Field, California, 22 September – 5 October 1943
• Hickam Field, Hawaii, 20 October 1943
• Hawkins Field, Tarawa, Gilbert Islands, 24 December 1943
• Makin Airfield, Makin, Gilbert Islands, 21 April 1944
• Wheeler Field, Hawaii, 14 October 1944
• Yontan Airfield, Okinawa, 7 June 1945
• Fort Lawton, Washington, 1–4 January 1946

Campaigns

Aircraft

• Douglas O-46, 1942
• Lockheed B-34 Ventura, 1942–1943
• North American B-25 Mitchell, 1943–1945

References

Notes

; Explanatory notes

; Citations

Bibliography

References

1. Maurer, ''Combat Squadrons'', pp. 768–769
2. Maurer, ''Combat Units'', p. 266
3. Ferguson, p. 4
4. Maurer, ''Combat Units'', p. 437
5. Maurer, ''Combat Units'', pp. 388–389