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
No. biggit1
Wecht9,700 pound (4,400 kg)
Lenth10 feet (3.0 m)
Diameter28 inches (71 cm)

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.