W82

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W82
Lawrence Livermore Laboratory
Specifications
Mass43 kg (95 lb)
Length860 mm (34 in)

Blast yield2 kt (8.4 TJ)
W82 AFAP (bottom)

The W82 (also known as the XM785 shell) was a low-yield

155 mm artillery shell. It was conceived as a more flexible replacement for the W48, the previous generation of 155 mm nuclear artillery shell. A previous attempt to replace the W48 with the W74 munition
was canceled due to cost.

Originally envisioned as a

rocket-assisted portion of the shell. The unit cost of the weapon was estimated at US$4 million.[2]: 93  Although enhanced radiation devices were considered more effective at blunting an invasion due to the high neutron flux they produce, the more complex design eventually led to the cancellation of the dual-purpose W82-0 program in 1982. Development of a standard weapon, the W82-1, was restarted in 1986. The program was finally cancelled in 1991 due to the end of the Cold War
.

Design

The shell used a body made from titanium with a copper rotating band. A special process was developed to bond the rotating band to the titanium body of the shell which prevented shell-band separation during firing.[3]

References

  1. ^ a b "W82 / XM-785". GlobalSecurity.org. 30 September 2018. Archived from the original on 25 January 2022. Retrieved 13 February 2021.
  2. OL 8050319M. Archived from the original on 15 February 2023. Retrieved 8 July 2021 – via Google Books
    .
  3. ^ Improved Bonding of Copper Rotating Bands to Titanium Artillery Shells (Poster). Watertown Arsenal, US Army. Archived from the original on 2022-06-30 – via National Archives at Boston, Box 12, Folder: Prints & Negatives, 1980-1984.

Further reading

External links

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