Davy Crockett (nuclear device)

The M-28 or M-29 Davy Crockett Weapon System was a tactical nuclear recoilless smoothbore gun for firing the M388 nuclear projectile, armed with the W54 nuclear warhead, that was deployed by the United States during the Cold War. It was the first project assigned to the United States Army Weapon Command in Rock Island, Illinois. It remains one of the smallest nuclear weapon systems ever built, with a yield of 20 tonnes of TNT (84 GJ). It is named after American folk hero, soldier, and congressman Davy Crockett.

M28/M29 Davy Crockett
A Davy Crockett at the Aberdeen Proving Ground, Maryland, 1961
TypeNuclear recoilless gun
Place of originUnited States
Service history
Used byUnited States
WarsCold War
Production history
Variants
  • M28
  • M29
Specifications
Mass
  • M28 108.5 pounds (49.2 kg), unloaded
  • M29 316 pounds (143 kg), unloaded
Crew5

Elevation5-800 mils (0.3–45 degrees)
Effective firing range
  • M28 1.25 miles (2.01 km)
  • M29 2.5 miles (4.0 km)
Blast yield20 tonnes of TNT (84 GJ)
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