aa 2-455 device components or designed and fabricated by project personnel Nuclear components were obtained from standard production through the AEC. On of the major phases of the project activities was coordination with DOD agencies and other support groups to devise a workable emplacement and firing system. This included taking part in various conferences and test from the initial planning stages through preliminary sea trials of the suspension system and dry run activities prior to detonation. Checkout and assem- bly was completed prior to placing the devices in firing position. The device case and underwater signal cables were water-pressure tested before acceptance from the manufacturer. The electrical equipment for firing was tested on numerous dry runs for satisfactory operation. The two devices were detonated satisfactorily without any major difficulties or delays. Some troubdle was encountered on the WAHOO event from fairly rough seas which made the zero instrument platform (LCM hull) very unstable. This was not only uncomfortable for personnel, but created very unfavorabl: working conditions and deteriation of equipment. These conditions were corrected on the UMBRELLA event through the use of a larger platform (LCU hull) in an anchored position. A few trouble spots developed in the fabrication of equipment, such as the zero instrument platform, for use by several agencies. These conditions were brought about by poor coordina- tion between the users and fabrication agencies. For any future test of a similar nature, the following recommendations are offered concerning the activities of Project ve ee » “a 34.3: OS ! Cep. . fppriten, ey, pM Cd PAGE