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509th Composite Group

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509th Composite Group
A blue circle with yellow writing. At the top it says "58th Wing"; at the bottom is the number 509. In the centre there is a white mushroom cloud with two red lightning bolts.
1946 emblem of the 509th Composite Group while part of the 58th Bombardment Wing, Very Heavy
Active17 December 1944 – 10 July 1946
CountryUnited States
Branch United States Army ( Army Air Forces
TypeBombardment and air transport composite
RoleAtomic warfare
Size1767 personnel, 15 B-29 and 5 C-54 aircraft
Part of313th Bombardment Wing
Twentieth Air Force
Garrison/HQNorth Field (Tinian), Mariana Islands
Asiatic-Pacific Campaign (1945)
Paul Tibbets

The 509th Composite Group (509 CG) was a unit of the United States Army Air Forces created during World War II. They tasked with the operational deployment of nuclear weapons. It conducted the atomic bombings of Hiroshima and Nagasaki, Japan, in August 1945.

References[change | change source]

Further reading[change | change source]

  • Bowers, Peter M. (1999). Boeing B-29 Superfortress. Stillwater, Minnesota: Voyageur Press. ISBN 0-933424-79-5.
  • Dvorak, Darrell F. (2012). "The Other Atomic Bomb Commander: Colonel Cliff Heflin and his "Special" 216th AAF Base Unit" (PDF). Airpower Historian. Archived from the original (PDF) on 27 March 2016. Retrieved 5 September 2015.
  • Mann, Robert A. (2004). The B-29 Superfortress: A Comprehensive Registry of the Planes and Their Missions. Jefferson, North Carolina: McFarland & Company. ISBN 0-7864-1787-0. OCLC 55962447.
  • Marx, Joseph L. (1967). Seven Hours to Zero. New York: G.P. Putnam Sons. OCLC 913500.
  • Ossip, Jerome J., ed. (1946). 509th Composite Group History – 509th Pictorial Album. Chicago, Illinois: Rogers Printing Company. OCLC 10065336.
  • Rowe, James L. (1978). Project W-47. Livermore, California: JA A RO Publishing. ISBN 0-9605562-0-6.
  • Thomas, Gordon; Morgan-Witts, Max (1977). Enola Gay. New York: Stein & Day Publishing. ISBN 0-8128-2150-5.
  • Wheeler, Keith (1982). Bombers over Japan. Virginia Beach, Virginia: Time-Life Books. ISBN 0-8094-3429-6.

Other websites[change | change source]