a TORN. The radius of the blast effects of BRAVO, however, was greater than expected, and there was concern that the Eneman site, where the KOON device was already nearly completely assembled in place, could not effectively survive blasts at the closer location contemplated for shots UNION, YANKEE, NECTAR, and ROMEO. ond shot CTG 7.1 therefore decided to schedule the sec- (which was switched from UNION to ROMEO) on a barge in the water- filled crater formed by BRAVO and move the Eneman surface shot last shot on the schedule, forward to the third position. (KOON), the The schedule as of 6 March is given in Table 27. The dropping of ECHO, scheduled for detonation on the surface at Eleleron, to the end of the schedule was related to the fact that the de- vice, like that for KOON (the Eneman surface device), was to be provided by the University of California Radiation Laboratory date for KOON was moved forward, the extra labor (UCRL); and as the required to prepare for its earlier detonation depleted the ECHO device assembly labor pool. These shot schedules were based on considerations of the time required for test preparations and assumed favorable weather. did not appear. The favorable weather The second test, ROMEO, was not fired until 2 weeks after its second scheduled date; KOON was fired 11 days later on 7 April. A new schedule was promulgated 1 week after the KOON firing, which reflected changing test priorities of the Atomic Energy Commission (AEC) weapon designers as a result of the first three tests. {to have been called ECHO) The Eleleron shot was cancelled, and one of the Bikini shots (NECTAR) was moved to the MIKE crater at Enewetak. The revised schedule as of 13 April for the remaining shots was UNION (16 April), NECTAR (20 April), YANKEE (27 April). This final schedule was modified to re- verse the NECTAR and YANKEE shot sequence due to weather. OPERATIONAL IMPLICATIONS The schedule changes affected DOD operations in several ways. The DOD had a considerable investment in preparing for experiments to be conducted 248