Little Boy

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Little Boy
Little boy.jpg
A post-war Little Boy model
TeepNuclear wappen
Place o oreeginUnitit States
Production history
DesignerLos Alamos Laboratory
Produced1945
No. biggit1
Specifications
Wecht9,700 pounds (4,400 kg)
Lenth10 feet (3.0 m)
Diameter28 inches (71 cm)

FillinUranium-235
Fillin wecht140 lb (64 kg)
Blast yield15 kilotons of TNT (63 TJ; 0.7 g mass equivalent)

"Little Boy" wis the codename for the atomic bomb dropped on the Japanese ceety o Hiroshima on 6 August 1945 during Warld War II bi the Boeing B-29 Superfortress Enola Gay, pilotit bi Colonel Paul W. Tibbets, Jr., commander o the 509t Composite Group o the Unitit States Airmy Air Forces.