Operation Upshot–Knothole
Videos
Operation Upshot–Knothole was a series of eleven nuclear test shots conducted in 1953 at the Nevada Test Site. It followed Operation Ivy and preceded Operation Castle.
The mangled tower for the Ruth test. The explosion failed to level the testing tower, only somewhat damaging it.
Upshot-Knothole Badger, 23 Kilotons
Upshot-Knothole Harry, 32 Kilotons
Encore's Mushroom Cloud from far away
Castle Bravo
Videos
Castle Bravo was the first in a series of high-yield thermonuclear weapon design tests conducted by the United States at Bikini Atoll, Marshall Islands, as part of Operation Castle. Detonated on 1 Mar
Operation Upshot–Knothole
…dodgy performance, the COBRA primary was used in the emergency capability ALARM CLOCK, JUGHEAD, RUNT I, RUNT II thermonuclear devices, as well as in the SHRIMP device. RACER IV (as redesigned and proof-tested in the Simon test) was employed as primary for the ZOMBIE, RAMROD and MORGENSTERN devices. Navy scientist…
The SHRIMP device in its shot cab
Shot-cab installation of SHRIMP device, with humans for scale
Bravo SHRIMP device shot-cab
SHRIMP device delivered via truck awaiting installation