5. CO.uiAND AND COMJIUNICATIONS .iATTERS 5.1 General Detonation time for each shot participated in will be designated as H-Hour for planning purposes. Operations immediately before and after shot time will be scheduled with respect to ii-Hour. The illustrations on pages V and VI r.zpresent the general operating situation in connection with H-Hour. After Transit Able and Baker are returned to Tniwetok, recovery operations on board the contaminated vessels will be conducted. Reboarding time on each vessel will be designated as R-Hour. Operations immediately before and after reboarding will be scheduled with respect to R-iHour. Planning will be on the basis of a radiation field on the topside of Transit Baker of 1000 r/hr at H-Hlour plus 1. Communications details (frequencies, range, eté.) will be according to Annex M. 5e2 Operations Prior to H-Hour 5e2el Movement of Vessels to Bikini Area Transit Able and Baker will depart imiwetok for shot station approximately H minus 48 hours. in operating crew of $ men to run the ship and 4 technical personnel to start experimental equipment will be aboard each ship. These 13 men will be called the "Able (or Baker) operating party”. Able and Baker «rill be esco.ted by HOLALA, (ATF106) and TAUAKOUI, (ATF116). The Ships Operations Officer (Kearns) and the Task Force Radiological Safety Representative (Serviss) will be aboard ,JOLALA; and the Decontamination Advisor (Hawkins) and the Radiological Safety Advisor (Baietti) will be in Ta /‘AKO.iI. Able and Baker will proceed so that they arrive on station at approximately d minus 3 hours. This station will be in the predicted downwind direction from shot as shown in Annex N and will be approximately 20 - 30 miles from shot. 5e2e2 Postponement of Shot In case a shot is postponed for one day, the Transit operating parties will remain aboard and orbit Able and Baker in the general vicinity of the station; ATFs 106 and 116 will stand by Able and Baker. If the PeV5 is in flight, it will return to Kwajalein. If a shot is postyoned for more than one day, the tugs and Azle and Buker will prepare return to Enivetok, upon orders of the Project Officer. ST, LOUIS FRC 5.2.3 Transfer of Control to .!OLALA and Start of ‘'ashdown Pumps At EH minus 4, -JOLALA will assume radio control of Able and Baker; the operating parties will remain aboard Able and Baker. The washdown system pwuaps aboard Able will be operating at this time, pumping; overpoarce 009521