RODUCTION This is a preliminary report, and therefore, does not give either complete or final results of the work of the various projects. No in- formation on the construction of the device is included, in order that the classification may be kept to Secret Restricted Data. —— ooneens en, wt eee “ee It was detonated as the Blackfoot Shot on a 200 foot tower on Runit Island, Fniwetok Atoll, at 0620:00.2, June 12, 1956. | oe ceetaegecenaar meetin The results of the various experiments are given in the following pages. COPIED SLL LANL RC -he ATTY TAN

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