This DVD details the military effects studies performed during
the operation Castle testing. It covers in great detail the weapons
used, the blasts and their effects and much more about the purpose
of this round of weapon testing.
This DVD has a run time of 39 minutes.
Operation Castle was a six-detonation test series held at the
Atomic Energy Commission's (AEC) Pacific Proving Ground in the Spring
of 1954. This test series, principally conducted at the Enewetak
and Bikini Atolls in the northwestern Marshall Islands, provided
proof tests of large-yield thermonuclear, or hydrogen, devices.
Castle represented the end of a drive for a workable thermonuclear
weapon and the beginning of the refinement of large-H-bombs into
smaller and more efficient weapons.
After Castle, the U.S. could choose in a range of small tactical
weapons to large strategic weapons. From this point, weapons development
programs concentrated on producing bombs of specific nuclear weapons
effects -- heat, blast, and radiation. The Bravo event of the Castle
series yielded 15 megatons, the most ever exploded in atmospheric
testing by the U.S. A scientific miscalculation caused the yield
to be about double what was expected. Also, reports indicate that
Bravo was the single worst incident of fallout exposure in all of
the U.S. atmospheric testing program. Fallout was scattered over
more than 7,000 square miles of ocean and islands, resulting in
the contamination and exposure of military, civilian U.S. personnel
working on the shot, and people of the islands who were earlier
moved to a supposedly "safe" island but received large
amounts of radiation. Acute radiation effects were observed among
some of these people.
The shots in the Castle series were:
Bravo, February 28, Bikini, 15 megatons
Romeo, March 26, Bikini, 11 megatons
Koon, April 6, Bikini, 110 kilotons
Union, April 25, Bikini, 6.9 megatons
Yankee, May 4, Bikini, 13.5 megatons
Nectar, May 13, Enewetak, 1.69 megatons
Here are some sample clips from the DVD
 
 

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