with the LASL group serving as the final clearing house for all three agencies in transmitting the requirements of TG 7.1 to TG 7.5. During the plan- ning phase the four UCRL representatives functioned from their own laboratory while the DOD representative established residence at Los Alamos. During the instrumentation and shot periods these three groups combined in the Forward Area and representatives of this combined group were stationed at various sites throughout the PPG where major activities concentrated. Under this method of operation in the field, individual members of the group were not restricted to problems of their parent agency and frequently assisted other agencies in accomplishing the over-all mission of the Task Group. During the spring and summer of 1955, devices or weapons and experiments were added or deleted from the operation with a frequency that produced a continual revision of the test facilities required by the resulting scientific programs. However, at the end of September 1955 it was estimated that the basic criteria mecessary for the design of 95 per cent of the scientific structures had been transmitted to the AEC Field Manager, Eniwetok Field Office. The technique employed during this period was to delineate items which would be required in the operation regardless of the concept of the day. This included items such as submarine cable systems, gas storage building, HE magazines, standardized shot barges, and the basic major scientific stations. This approach was necessary because the time involved in design, procurement, and construction precluded waiting until participation was firm and locations selected before gathering the test faciiity criteria. ' By mid-September construction necessitated opening the J-6 Office in the FA to maintain close coordination with the construction forces. The field revisions in the shooting sequence and jocations had little effect upon the facilities required beyand the expansion of the existing capa- bility of firing a barge shot in the Mike crater at Eniwetok Atoll. In the course of the operation, approximately 735 scientific stations were constructed, nearly 1300 work orders-prepared, and 20 man-meonths of Tot time were expended in the J-6 Shop in support of fhe mission of UL &7.3 . intra-atoll Airlift Airlift eupport to the islands of Entwetok Atoll was provided by TG 1.4 asing eight 1-20 aircraft and ten H-19B helicopters. The full eomDement of 1-20 aircraft was not in place until after the arrival of the WES Badoeng Strait on March 16, 1956. in addition, ane L-20 was in place - 89 - BEST AVAILABLE Copy