I. GENERAL | ~ Tae period 21 Apri] 1954 through 30 May 195% in CASTLE sav completion of the test program, end return of practically ell of the partfeipst.ng perscnne) and equipment to the ZI. Repeated delays vere encouztered, prinsipaliy because of high altitude weatber conditions which seered unacceptable in view ay fodes of operation vere ece- centially the same as during the first part of the program, with forces being split between Eniwetok and Bikini. The firal detoration occurred at Eni- wetok and no inordinate fall-out vas experienced. of Exivesok Atoll wag not necessary. An erntuation of Esiwetok Roll-up operations centered on Parry. Personnel were phased ovut’in accordance vith the status of their respective projects. UCRL personnel departed after the third and fourth detonasions, many TU-13 personnel departed after the fifth shot and TU-2 and TU-3 person- nei left late in April; thus, after the last shot there was no great Last minute rusk. Pac Div MATS scheduled extra planes at this time, and except for the breakdown of seven MATS planes at Eniwetok within a period of four dsys and ursatisfactory MATS relations at Eniwetok, there were no significant trensportation problems. Time lost due to weather delcys was in part regained by the elicination of one test event, and the prcgram-as a whole was concluded & month efter tke scheduled date otAne Sixth shot. Il OFERATIOUAL A. Planning Fhase l. a 4g in the earlier part of the progres, tke J-5 section formelized she mcre vital plens by teeulng Operaticrsi Ictters pertaining to each event. (1) , or, Crerntiozal Letrer Yo. 13 vase the resovery picn beginnizg on Rexrod Ory (subsequently cancelled). 8 OOF COS C88 Of OS COC Oo OBOE OO OTE OES Se BOSH OR ZO TO MEME HEE ZZ Ee SHE SHFAsGeAeaeqgaea (2) SF-7255, Suvj: Cperaticnal letter # 13, ECEC Recovery, 21 Apr 54, COMF,