 | This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. (September 2022) |
&sq=&lang=&file=File:W9_AFAP.jpg)
The W9 was an American nuclear artillery shell fired from a special 280 mm howitzer. It was produced starting in 1952 and all were retired by 1957, being superseded by the W19.