gun-type fission weapon

Gun-type fission weapons are fission-based nuclear weapons whose design assembles their fissile material into a supercritical mass by the use of the "gun" method: shooting one piece of sub-critical material into another. Although this is sometimes pictured as two sub-critical hemispheres driven together to make a supercritical sphere, typically a hollow projectile is shot onto a cylindrical spike, which fills the hole in its center. Its name is a reference to the fact that it is shooting the material through an artillery barrel as if it were a projectile. Developed and deployed by the Manhattan Project, gun-type designs were quickly replaced by the more efficient implosion-type weapons.

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nuclear weapon, 

Little Boy, Mark 10 nuclear bomb, nuclear weapon, Violet Club, weapon type, 

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Location: KML, Cluster Map, Maps,

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  Mark 10 nuclear bomb ⓘ
  proposed American nuclear bomb based on the earlier Mark 8

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  Little Boy ⓘ
  US nuclear bomb

Frameless

Type	Subtype	Date	Description	Notes	Source
class	weapon		Mark 10 nuclear bomb	gun-type fission weapon	Wikidata
class	weapon	1945	Little Boy	nuclear bomb, gun-type fission weapon	Wikidata