World Library  
Flag as Inappropriate
Email this Article
 

B57 nuclear bomb

B57 nuclear bomb

The B57 nuclear bomb was a tactical nuclear weapon developed by the United States during the Cold War.

Entering production in 1963 as the Mk 57, the bomb was designed to be dropped from high-speed tactical aircraft. It had a streamlined casing to withstand supersonic flight. It was 3 m (9 ft 10 in) long, with a diameter of about 37.5 cm (14.75 in). Basic weight was approximately 227 kilograms (500 lbs).

Some versions of the B57 were equipped with a parachute retarder (a 3.8 m/12.5 ft diameter nylon/kevlar ribbon parachute) to slow the weapon's descent, allowing the aircraft to escape the blast (or to allow the weapon to survive impact with the ground in laydown mode) at altitudes as low as 15 m (50 ft). Various fuzing modes were available, including a hydrostatic fuze for use as a depth charge for anti-submarine use.

The B57 was produced in six versions (mods) with explosive yields ranging from 5 to 20 kilotons. Mod 0 was 5 kt, Mod 1 and Mod 2 were 10 kt, Mod 3 and Mod 4 were 15 kt, and Mod 5 was 20 kt. The depth bomb version of the B57, for the U.S. Navy, replaced the Mk 101 Lulu and had selectable yield up to 10 kt.

The B57 used the Tsetse primary design for its core design, shared with several other mid- and late-1950s designs.

The B57 was produced from 1963 to 1967. After 1968, the weapon became known as the B57 rather than the Mk 57. 3,100 weapons were built, the last of which was retired in June 1993.

The B57 could be deployed by most U.S. fighter, bomber and Navy antisubmarine warfare and patrol aircraft (S-3 Viking and P-3 Orion), and by some U.S. Navy helicopters including the SH-3 Sea King. The B57 was also deployed with Canada's CF-104s in Germany, and the Royal Air Force's Nimrod from RAF St Mawgan and RAF Kinloss in the UK and Malta in the Mediterranean.

See also

External links

  • Allbombs.html list of all US nuclear weapons at nuclearweaponarchive.org
  • Beware the old story by Chuck Hansen, Bulletin of the Atomic Scientists, March/April 2001 pp. 52–55 (vol. 57, no. 02)
  • A guide to British nuclear weapons by Brian Burnell
  • Video showing shipboard handling procedures for the B57 bomb
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
 
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
 
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.
 


Copyright © World Library Foundation. All rights reserved. eBooks from Project Gutenberg are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.