BETA SAÚDE
W9 (nuclear warhead)
Texto da Wikipédia (en), licença CC BY-SA. O BETARUBI mostra o verbete inteiro nesta página — a leitura não continua fora do site.
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 It was produced starting in 1952 and all were retired by 1957, being superseded by the W19.