light, invisible frllout wes detected by all ships. This fallout commenced about 1300li, rereched a naxtmun about 1800and decreased to alnoat zoro by 2b00h. averege recdings Curing this pertod reached 309 nr per hour, with raxinun concentration up to 475 nr > per hour. Ships experiencing this fellout. were “Yocatea in the . general area between true bcerings 110°" to 195° ‘fron ground zero, Cistances from 20 to 70 miles. ° : , ‘ Zeconteninetion of the ships by the ehipe' own ceconteninetion crews, plus:-neturrl redionctive decay, drought the redioective intensity ‘own repiély. appendix lle~I shows aversge tonside : intensities in millircentgens per hour (germm only) of the ships receiving significent fallout. It will ve noticed thet weile the BLS0KO and PEILIP were the mo at: heavily conterin: ted in the beginning, the crPsr was the most heavily contemine ted one week leter. It 46 believed that conteninetion clung to the GYPSY longer then to other ening heceuse of the condition of her tep- side, which was quite rusty. another fector tending to increase | recioactive inteneity on the GYP8ST wes her exploynent the first week efter BRaVO to recover conteninated. cheins end nooring gcer from the tottom of the lecoon. Thre. (3) barges, ten (10) LoVe and ten (10) iCis were enchored or coored in the southeast porticn of the leroon off DIYU Islend (ebout 20 miles from ground zero) prior to the detonation, as it was not considered vorecticable nor safe to teke thes to sce in the preveilins weather. BELLS GPOVE (LSD-2) « J3en-5