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    Harry |Upshot-Knothole|

    / Main Archive / USA /

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    Date: 12:05 19/05/1953 | Type: Tower @90m | Yield: 32 Kt

    Harry was a test of the HAMLET device which used a TX-13D heavy weight strategic bomb design. The device weighed 8,000 lb. Designed by Ted Taylor, it was the most efficient sub-100kt pure fission design tested, the most efficient being the 500kt Ivy King shot. The design was never deployed as using a large heavy bomb to get an efficient yield out of a small amount of fissile material was obsolete in an era of rapidly expanding fissile material supply. The fireball lasted for an unusually long time, 17 seconds. Predicted yield was 37 kt. A betatron was used for initiation. The radioactive cloud rose to 11,500 meters and passed directly over St. George, Utah, 160 km to the east. The following summer film 'The Conqueror' starring John Wayne, was shot in a canyon near St. George. Legend has it that he developed cancer, and later died, due to this test. 91 members of the 220 member cast developed cancer. For these reasons, the test came to be known as “Dirty Harry”.

    Published on: 2010-09-25 (2547 reads)

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