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The M28 or M29 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. [3]
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 ...
The Gold Code is the launch code for nuclear weapons provided to the President of the United States in their role as commander-in-chief of the armed forces. [1] In conjunction with the nuclear football, the Gold Codes allow the president to authorize a nuclear attack. [2]
No fission products have a half-life in the range of 100 a–210 ka ... 241 Am ƒ: 251 Cf ƒ [4] 430–900 a 226 Ra № 247 Bk 1.3–1.6 ka 240 Pu 229 Th 246 Cm ƒ: 243 Am ƒ: 4.7–7.4 ka 245 Cm ƒ: 250 Cm 8.3–8.5 ka 239 Pu ƒ: 24.1 ka 230 Th № 231 Pa № 32–76 ka 236 Np ƒ: 233 U ƒ: 234 U № 150–250 ka: 99 Tc ₡ 126 Sn 248 Cm 242 ...
There are unconfirmed reports that work on similar concepts continued into the 1970s and resulted in a one-kiloton warhead design for 5-inch (127 mm) naval gun rounds; these, however, were never deployed as operational weapons. In 1991, the US unilaterally withdrew its nuclear artillery shells from service, and Russia responded in kind in 1992.
This article contains a list of nuclear weapon explosion sites used across the world. It includes nuclear test sites, nuclear combat sites, launch sites for rockets forming part of a nuclear test, and peaceful nuclear test (PNE) sites.
W48 AFAP on display (middle) The W48 was an American nuclear artillery shell, capable of being fired from any standard 155-millimetre (6.1 in) howitzer.A tactical nuclear weapon, it was manufactured starting in 1963, and all units were retired in 1992.
A thermonuclear weapon, fusion weapon or hydrogen bomb (H bomb) is a second-generation nuclear weapon design.Its greater sophistication affords it vastly greater destructive power than first-generation nuclear bombs, a more compact size, a lower mass, or a combination of these benefits.