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Published on Sep 26, 2007
0800003 - Operation Sandstone 0800004 - Operation Sandstone, EG& G, Project 19-18 Film 0800005 - Operation Sandstone, U.S. Air Force Participation 0800006 - Operation Sandstone, U.S. Army Engineers 0800007 - Operation Sandstone, Blast Measurements Group 0800008 - Operation Sandstone, U.S. Navy
In 1948, the U.S. nuclear stockpile consisted of approximately 50 atomic bombs. Since the industrial complex to produce more nuclear weapons was not fully complete and there were limited amounts of plutonium, researchers wanted to develop more efficient implosion bombs. Operation Sandstone was a series of atmospheric nuclear "proof tests" conducted in the Pacific Proving Grounds Marshall Islands area April and May 1948. The goal of this test series was to prove the workability of changes to implosion warhead design that used less plutonium. The first shot, X-ray, conducted on April 14, 1948, had a yield of 37 kilotons. The second shot, Yoke, detonated on April 30, had a yield of 49 kilotons, while the last shot, Zebra, occurred on May 14 with a yield of 18 kilotons.