«LT. (1) Leading LOM which se € and LOi's whieh placed barge into LSD in the late afterncon before the ehet, end after arming. (3) (x) (2) Returning the ISD inte the proximity ef channel entrance. (m) Discharge of the LCU and the LCM's from the LSD te set new moorings. (n) Sailing of the LSD to Bikini fer next chet barge return. Firing of the shot with the LSD standing by et sea. Surveying lageen contamination by probing from emphibicus craft airborne from Mkini er KEvejalein. fhe above ordar of events ean be sccomplished in about the same lengthof tine as now required at Bikinf and Enivetok in the staging of barge shots in the. Bikini Lagoon. . here seems to be no reeson that extra time veuld be required since the device weuld be staged from Bikini rather than Enivwetek, and the diagnostics equipecnt ary runs would be simpler. Our Concept of the type end the operation of @ diagnostics ship comprises the following: (a) . he procurenent of the ship should be funded for and obtained by the Atomic Energy Comission on a time base of 6 years for its eentinued use. (>) Operation The ship cealdé be operated for the AEC by Task Group 7.3 or Task Group 7.5 with the primery mission ef housing experimental yersennel, edtaining experimental data, acting es the firing control ship. This shin, of course, can be used by other agencies, such as Tazk Group 7.5 in support of barge mooring fecilities. UCRI, would plan % place the dfaonestics ship on berth in the San Francisco area prier te the operational phase of Hardtack. There, all diagncetic gear would be installed, checked, and epsrated pricr te sailing for the forward area. The saving in time overseas for diagnestic pereonnel fren this fact elone will be 3000 man days plus the fact that relfability ef eperatien will be aasured upon arrival overseas. (e) Type of Ship In cur estimation, a ship such as an AV or an AGC is not required. The lergsst spece allocation shoard would be living quarters to house an estimated 200 TG 7.1 and TC 7.5 personnel. Ne lerge cargo space is necessary, but the inclusicn of shop space and laboretory space is required, theagh the shops do not need to be as large as these on the Curtiss. Heavy shipdsard erenes ave not required. A _——— “a\ IS