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The Koon shot of Operation Castle was a test of a thermonuclear device designed at the University of California Radiation Laboratory (UCRL), now Lawrence Livermore National Laboratory. The "dry" two-stage device was known as "Morgenstern" and had a highly innovative secondary stage. It was tested on April 7, 1954.
Operation Castle was a United States series of high-yield (high-energy) nuclear tests by Joint Task Force 7 (JTF-7) at Bikini Atoll beginning in March 1954. It followed Operation Upshot–Knothole and preceded Operation Teapot .
The test took place on 26 April 1954 at Bikini atoll of the Marshall Islands, on a barge moored in the lagoon, off Yurochi island. The yield of 6.9 megatons of TNT was roughly double the predicted 3-4 megatons. Although the barge had been moored in over 160 feet (49 m) of water, the test left a crater 3,000 feet (910 m) in diameter and 90 feet ...
The test was part of the Koon shot of Operation Castle. The Mk-22 failed to achieve anything like its intended yield due to premature heating of the secondary from exposure to neutrons. As the other UCRL test planned for the Castle series, the liquid-fueled "Ramrod" device had the same basic design flaw, that test was canceled
Such fizzles can have very high yields, as in the case of Castle Koon, where the secondary stage of a device with a 1 megaton design fizzled, but its primary still generated a yield of 100 kilotons, and even the fizzled secondary still contributed another 10 kilotons, for a total yield of 110 kT.
Nuclear testing at Bikini Atoll (1946−1958) — conducted at Bikini Atoll of the Marshall Islands, then part of the U.S. Trust Territory of the Pacific Islands. Subcategories This category has only the following subcategory.
The Hotel Lanai in Lanai City was built in 1923 by James Dole of the Hawaiian Pineapple Company as a lodge to house the executives overseeing the island's pineapple production. It was the island's only hotel until 1990. Wrecked YOGN-42 in Shipwreck Beach. Lanai is also home to three golf courses, one at each Four Seasons resort and a third ...
Fota (statutory spelling Foaty; Irish: Fóite) [1] [2] is an island in Cork Harbour, County Cork, Ireland, just north of the larger island of Great Island.It is the home of Fota Wildlife Park—the only such zoo or animal park (besides Dublin Zoo) in the country—, the historical Fota House and Gardens, and the Fota Island Golf Club and Resort.