Castle Union was the code name given to one of the tests in the Operation Castle series of United States nuclear tests. It was the first test of the TX-14 thermonuclear weapon (initially the "emergency capability" EC-14), one of the first deployed U.S. thermonuclear bombs.
An "Alarm Clock" device is a "dry" fusion bomb, using lithium deuteride fuel for the fusion stage of a "staged" fusion bomb, unlike the cryogenic liquid deuterium of the first-generation Ivy Mike fusion device.
It differed from the Castle Romeo "Runt" device, tested shortly before, in using highly enriched lithium (approximately 95% lithium-6; natural lithium is a mixture of lithium-6 and lithium-7 isotopes). The "Runt" device had 7.5% lithium-6 in the fusion fuel.
The test took place on April 26, 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 (27 m) deep in the bottom of the lagoon.
Like the Ivy Mike, Castle Bravo, and Castle Romeo tests, a large percentage of the yield was produced by fast fission of the natural uranium tamper, which contributed to the extensive fallout caused by these tests.
As the highly enriched lithium was both expensive and scarce at the time, it limited the number of these weapons that could be produced. The "Runt" design tested in Castle Romeo and Castle Yankee was preferred for deployment.
CastleUnion was the code name given to one of the tests in the Operation Castle series of United States nuclear tests. It was the first test of the TX-14...
particular with the White Star Line, Cunard Line, Royal Mail Lines, Union-Castle Line, Canadian Pacific Line, Orient Line and the P&OSNC, which held a...
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...
UnionCastle is a British comedy television series which was originally broadcast on ITV in 1982. Lord Mountainash, the left wing leader of a Trade Union...
Castle Yankee was the code name given to one of the tests in the Operation Castle series of American tests of thermonuclear bombs. It was originally intended...
The Koon shot of Operation Castle was a test of a thermonuclear device designed at the University of California Radiation Laboratory (UCRL), now Lawrence...
were produced in early 1954. It was tested in April 1954 during the CastleUnion nuclear test and had a yield of 6.9 Mt. The bomb is often listed as the...
RMS Pendennis Castle was a Royal Mail Ship, passenger and cargo liner operated by the Union-Castle Line. The vessel served the Union-Castle Line from 1959-1976...
possessions of Elmina Castle, Saint Thomas, and Luanda, Angola, on the west coast of Africa. After the dissolution of the Union in 1640, Portugal reestablished...
The Man in the High Castle (1962), by Philip K. Dick, is an alternative history novel wherein the Axis Powers won World War II. The story occurs in 1962...
prominent condensation ring. The mushroom cloud from the 6.9-megaton CastleUnion hydrogen bomb test, showing multiple condensation rings. The water column...
town date from the early eighteenth century. Before the union with England, Stirling Castle was also one of the most used of the many Scottish royal...
Neuschwanstein Castle (German: Schloss Neuschwanstein, pronounced [ˈʃlɔs nɔʏˈʃvaːnʃtaɪn]; Southern Bavarian: Schloss Neischwanstoa) is a 19th-century historicist...
Hohenzollern Castle (German: Burg Hohenzollern [bʊʁk hoːənˈtsɔlɐn] ) is the ancestral seat of the imperial House of Hohenzollern. The third of three hilltop...
Dublin Castle was the centre of the government of Ireland under English and later British rule. "Dublin Castle" is used metonymically to describe British...
fortified castle, of quadrangular form. At the Union of the Crowns, Anne of Denmark, Queen of Scotland, and her children stayed in the castle on their...
RMMV Stirling Castle was a British ocean liner of the Union-Castle Line built by Harland & Wolff in Belfast for the Southampton to South Africa mail service...
role in internal struggles for power within Sweden and the Kalmar Union. The castle's heyday was in the mid-16th century during the reign of Duke John...
The European Union (EU) is a supranational political and economic union of 27 member states that are located primarily in Europe. The Union has a total...
resistance member François de La Rocque, and trade union leader Léon Jouhaux. Besides the VIP prisoners, the castle held a number of Eastern European prisoners...
the castle until 1939, when the Soviet Union occupied Western Belarus. When German forces invaded the Soviet Union in 1941, they occupied the castle and...
Balmoral Castle (/bælˈmɒrəl/) is a large estate house in Aberdeenshire, Scotland, and a residence of the British royal family. It is near the village of...
Global Information
