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Military unit From Wikipedia, the free encyclopedia
The 505th Bombardment Group is an inactive United States Air Force unit. Its last assignment was with Thirteenth Air Force, stationed at Clark Field, Philippines, where it was inactivated on 30 June 1946. After orgamnizing and training in the United states, the group served in the Pacific Ocean theater of World War II as part of Twentieth Air Force. The group's Boeing B-29 Superfortress engaged in the strategic bombing campaign against Japan from January through August 1945, earning two Distinguished Unit Citations.
| 505th Bombardment Group | |
|---|---|
Group B-29s at North Field, Tinian July 1945 | |
| Active | 1944-1946 |
| Country |  United States |
| Branch |  United States Air Force |
| Role | Strategic bombardment |
| Engagements | Pacific Ocean Theater |
| Decorations | Distinguished Unit Citation |
| Insignia | |
| Tail marking | K above a triangle (January – March 1945)[1] |
| Tail marking | W within a circle (April – September 1945)[1] |
The 505th Bombardment Group was activated at Dalhart Army Air Field, Texas in March 1944 as a Boeing B-29 Superfortress very heavy bombardment group, drawing its initial cadre from the 9th Bombardment Group.[2] In moved to Harvard Army Air Field, Nebraska on 1 April, where the group began training with Boeing B-17 Flying Fortresses on 1 July until B-29s became available.[2][3] On 1 May 1944, the group reorganized from four squadrons of 7 airplanes into three squadrons of 10 planes each.[4] The group trained for combat with B-29s until leaving Harvard on 6 November 1944.[3]
The group's ground echelon sailed from the Seattle Port of Embarkation for the Pacific on 14 November. The air echelon staged through Hamilton Field and Mather Field, California with its B-29s.[2]
The group arrived at its combat station, North Field, Tinian in the Mariana Islands on 19 December 1944. Three days later, it began flying training missions, including an attack on Moen Airfield in January. It flew its first combat mission on 24 January 1945 against targets on Iwo Jima and the Truk Islands.[2] It began operations flying high altitude daylight missions, engaging in the strategic bombing campaign against Japan. On 10 February, it flew a strike on the Nakajima Aircraft Company factory at Ota, for which it was awarded a Distinguished Unit Citation (DUC).[3] Eighteen group B-29s bombed the target, but eight were lost, most to operational problems.[2] However, The results of high altitude B-29 raids on Japan were disappointing. From 19 January, no mission had been able to bomb visually, and radar bombing results were unsatisfactory. Low altitude night area attacks with incendiaries promised better results for XXI Bomber Command. The switch in tactics began with the launch of a raid against the port and urban area of Tokyo on 9 March 1945.[5][6]
The group conducted area raids with incendiaries until August 1945. During April 1945, the group was diverted from the strategic campaign against Japan to support Operation Iceberg, the invasion of Okinawa. It struck Miyazaki Airfield and Kanoya Airfield,[6] bases from which kamikaze attacks were being launched. These bases were located on Kyushu, only 300 miles from Okinawa. The attacks directly impacted kamikaze launches, but also forced the Japanese military to retain fighter aircraft to defend the Japanese Special Attack Units that otherwise might have been used to challenge air superiority over Okinawa.[6][7][a]
The group also conducted aerial mining operations against Japanese shipping.[3] It was the only group in XXI Bomber Command to carry out these missions, which began on 27 March.[6] On 17 June, it concentrated its efforts on the mining campaign. It received a second DUC for mining the Shimonoseki Strait and harbors in the Inland Sea between 17 June and 1 July 1945.[3][8] The group flew its last mission on the night of 14 and 15 August 1945.[8] Following V-J Day its B-29s carried relief supplies to Allied prisoner of war camps. It also flew show of force flights and conducted bomb damage assessment flights over Japan. It moved to Clark Field in the Philippines in March 1946, and was inactivated there on 15 June 1946.[3]
| Award streamer | Award | Dates | Notes |
|---|---|---|---|
 | Distinguished Unit Citation | 10 February 1945 | Ota, Japan[3] |
| Distinguished Unit Citation | 17 June – 1 July 1945 | Japan[3] |
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