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Ejecta Distribution Studies
註釋Ejecta distribution studies were made on 21 high-explosive cratering shots of the 30-shot Air Vent series. Of these, 11 shots, with charge weights ranging from 64 to 6000 pounds of TNT, were fired at the ground surface, and 10 shots, each 256 pounds, were fired at varying depths beneath the ground. When burst depth was varied and charge weight held constant, ejecta mass was distributed in a similar way relative to the apparent crater for all charges fired at depths between the ground surface and 4.8 feet. At greater burst depths, ejecta mass was deposited further from the crater, reaching maximum distances at the burst depth that produced the maximum apparent crater. For surface bursts, ejecta were deposited relatively closer to the crater as energy release was increased.