placed into effect. This aircraft was found on ii March, however, 110 miles southeast of Kwajalein, having crash landed on a sandy beach at Ailinglapalap Atoll with no injury to personnel. During the forty~eight hours preceding SHOT / » some 1,400 persons departed the island camps at Bikini and were shuttled by LCM, LCU, and helicopter to TG 7.3 ships in the Bikini Lagoon. All non-surplus and valuable material at the camps and work areas nearer the shot site had been shifted southward to Eninman and Enyu Islands in order to be at a safe distance from anticipated blast effects. Small craft which could not be accommodated aboard the BELLE GROVE were moored or anchored in deep water in the lee of Enyu. The firing party remained ashore on Enyu, sheltered in the specially constructed bunker from which the detonation cf the device was controlled, On the morning of 1 March at 0645 local the first shot in the test series—the ‘S407evi ze-—was detcnated en the reef off Namu Island at Bikini Atoll. The test was highly successful; indeed, the yield was much greater than expected, whith resuited in certain effects not foressen. The most immediate of these was the high radioactive contamination of the Bikini eirstrip. It was such as to render it unusable until 10 March when it was reopened for linited service. During the time the airstrip was not available fer use, air transportation between the two atolls was furnished by two PBM aircraft furnished by TG 7.3 and the SA-15 aircraft of TG 7.4. }4 ND? To supplement this transportation, TG 7.3 utilized as necessary the