W55 (nuclear warhead) explained

W55 nuclear warhead
Type:Nuclear weapon
Origin:United States
Is Explosive:yes
Designer:Lawrence Livermore National Laboratory
Production Date:January 1964 to March 1968 and May 1974 to April 1974
Number:285 warheads produced in two production runs
Length:39.4inches
Yield:Disputed, either 1to or
Ref:[1] [2] [3]

The W55 was a tactical nuclear weapon that was in service with the US Navy from 1964 to 1990,[4] and was carried by the UUM-44 SUBROC submarine-launched missile as a nuclear depth bomb.[5]

The last W55 warhead was dismantled in December 1996.[6]

Notes and References

  1. Book: Chuck Hansen. 978-0-9791915-5-8. V. Swords of Armageddon. 2007. 536-540.
  2. Book: Chuck Hansen. 978-0-9791915-7-2. VII. Swords of Armageddon. 2007. 220-221.
  3. Sandia National Labs., Albuquerque, NM (USA). History of the Mark 55 Warhead. January 1968.
  4. Web site: Carey Sublette. List of All U.S. Nuclear Weapons. Nuclear Weapon Archive. 2022-06-24.
  5. Web site: Armaments & Innovations - The Pocket Polaris. U.S. Naval Institute. 2024-06-09. 2015-08-10.
  6. Defense Nuclear Facilities Safety Board. Jim McConnell. Harry Waugh. Pantex Plant Activity Report for Week Ending December 6, 1996.. 2024-06-27. 1996-12-06.