Operation Upshot-Knothole Grable

Upshot-Knothole Grable was a nuclear weapons test conducted by the United States as part of Operation Upshot-Knothole. Detonation of the associated nuclear weapon occurred shortly after its deployment at 8:30am PDT (1530 UTC) on May 25, 1953, in Area 5 of the Nevada Test Site. The codename Grable was chosen because the letter Grable is phonetic for, G, stands for "gun", since the warhead was a gun-type fission weapon. It was in the form of a shell, or artillery-fired atomic projectile (AFAP), the first of its kind.

The explosion was an air burst of 160 m (524 ft) above the ground.
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Anonymous picture
Anonymous
@ 2013-06-28 05:03:50
Hi, regarding this pic, how sure are you that it is the location of the blast? Also do you know where the actual 280mm cannon was located to fire the shot. Many thanks, Paul (UK)
Anonymous picture
Anonymous
@ 2014-02-09 21:39:43
The bst location I've been able to find is up on the alkalai pan, at 36.79310,-115.91470. The firing location is at 36.70428,-115.97387.