YANKES Following UNION, several attempts were made to fire the ENINETOK shot ' (NECTAR}; however, no favorable wind pattern materialized, Although pattqmns with some southerly canponents were obtained, the southerly winds were nd considered sufficiently deep or strong. Forecast fall~out plots based on these patterns were such that there was a fair amount of risk that a signifi- cant p of the fall-out pattern would not lay far enough north of ground . zero and would possibly over-lap the camp sites on PARRY and ENIMETOK Islands . At the 0030 command briefing, & May 1954 (for NECTAR), it was decided that the forecast conditLona were too risky for the ENI"ETOK shot, but that 4 similar pattern forecast to persist at BIKINI throughout the fourth and Mfth of May wae acceptable for YANKEE at BIXINI. Consequantly, plana were oade to shift operations to BIKINI prowided a later check on the winds on the morning of & May indicated persistence or improvement of the wind pattern, The winds being favorable, an informal command briefing wes given approximately 100M at the PARRY headquarters and shot advisories were issued to the appropriate internal and external commands. The search of Area Gi07 was ordered to begin in the afternoon. 4 post-shot sector search (240 NU wide) out to GOO NM on true bearing 50° from CZ was ordered for take-off at OSO41L5K. No fall-out was forecast for populated atolls or outside Area GREEN and no closure of air routes was recomended. No known transient shipping was within the 450 NM Danger area. Following move of the appropriate members of the headquarters and task group staffs to BIKINI by air and water, the forml pre-shot schedule of events began. The surface and air R.DEXES were issued at approximately 1700 as followas ‘ Surface R»DEX: True bearings from GZ 240° clockwise to 90° radé-1. distance 60 NN for H to H plus 6 hours, plus 1 circular R.DEX around CZ cx 15 NM radius, fir RADEXs H plus 1 hour, 10,000 feet and up (true bearings from GZ 225° elockwise to 290° -aximum distaneo 290° cloekwise to 30° maximum distances 25 NU 20 NM 100° eloekwise to 225° maximum distance § MM 30° clockwise to 100° naxinum distance 30 NM 40,000 feet and up (trie bearings from GZ): 230° cloeiwise to 320° maximum distance 30 NN 50° clockwise to 115° asximum distance 115° cloekwise tc 230° maximum distance 55 NM 15 NM 320° clockwise tc 50° c2ximum distance 0-1 - ae om _ = 2 15 NK