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The M114 bomb resembled a pipe bomb

The M114 bomb was a four pound U.S. anti-personnel bomb and biological cluster bomb sub-munition. The M114 was used in the M33 cluster bomb.


The M114 was a sub-munition for the M33 cluster bomb, as such, it was the first standardized U.S. biological weapon in 1952.[1][2] The M114 was an improved version of a British World War II-era bomblet that was designed to disperse anthrax.[3]


The M114 was similar to a pipe bomb, it had a 21 inch tube with a diameter of 1⅝ inches.[1] 108 M114s were clustered into the M33 cluster bomb;[1] each had its own detonator and was ejected from the M33 while the bomb was still aloft.[4] Each M114 held 320 milliliters of Brucella suis.[1]


  1. 1.0 1.1 1.2 1.3 Smart, Jeffery K. Medical Aspects of Chemical and Biological Warfare: Chapter 2 - History of Chemical and Biological Warfare: An American Perspective, (PDF: p. 51), Borden Institute, Textbooks of Military Medicine, PDF via Maxwell-Gunter Air Force Base, accessed November 13, 2008.
  2. Croddy, Eric and Wirtz, James J. Weapons of Mass Destruction: An Encyclopedia of Worldwide Policy, Technology, and History, (Google Books), ABC-CLIO, 2005, p. 75, (ISBN 1851094903), accessed November 13, 2008.
  3. Kirby, Reid. "The CB Battlefield Legacy: Understanding the Potential Problem of Clustered CB Weapons", Army Chemical Review, pp. 25-29, July–December 2006, accessed November 12, 2008.
  4. Regis, Edward. The Biology of Doom: The History of America's Secret Germ Warfare Project, (Google Books), Macmillan, 2000, p. 140, (ISBN 080505765X).

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