Task Group 7.1 utilization of passenger airlift between Eniwetok and Bikini was as follows: February . March ' April 131 614 932 May June July August 1-11 662 458 431 15 Off-atoll Airlift. Procedures used in booking passengers for off-atoll transportation were the same as those used on the Eniwetok-Bikini shuttle. Generally, SA-16 aircraft were used in off-atoll flights, except that C-54's were used at locations that had air strips large enough to handle this type of aircraft. Task Group 7.1 utilization of off-atoll flights during the operation was as follows: Site March April May June July Wotho 4 14 22 0 2 Nauru! Utirik 0 1 4 2 8 0 Kapingamarangi 0 0 § 1 August 0 0 0 1 0 0 0 0 0 Kusaie 4 6 19 0 2 0 Rongelap 9 21 10 0 3 0 0 7 8 16 2 1 0 3 Tarawa! Ujelang 0 4 Kwajaleia 0 Johnston Island! Wake Guam?! 0 0 0 2 8 3 2 1 0 3 0 0 0 0 13 5 8 0 6 0 0 6 0 0 0 ‘Locations where C-54 aircraft were used. Because of operational requirements it was occasionally necessary to set up special flights between Eniwetok and Bikini or to off-atoll locations. These flights were handled on an individual basis and generally did not cause any serious problems. Intra-atoll Boat Service. Task Group 7.5 did an outstanding job of supporting Operation Hardtack by surface craft. Throughout the entire period they satisfied requirements as they arose. During the early part of the operation regularly scheduled boat runs were made to up-island sites at both atolls. Later, as the need for up-isiand traffic diminished, the trips were made on an as-needed basis. The J-3 Section of TG 7.1 controlled all special trips made for 7.1 by TG 7.5 boats. All trips were dispatched by the H&N Marine Dispatcher, with requirements made through the J-3. This system greatly facilitated control, and expeditious use of the boats. Equipment was shuttled between the islands of the two atolls on LCU's. The J-4 Section booked the cargo with H&N, which actually moved the tonnage. During the operation 8907 M/T were carried at Eniwetok and 3320 M/T at Bikini. During Wahoo and Umbrella events the TG 7.5 boats were augmented by use of the TG 7.3 Boat Pool Detachment, which made scheduled runs to the target arrays.