xT 1 as an aid in preventing injuries to aircraft crews, 3 However, in spite of heavy precautions throughout the tests, some participating personnel experienced general over-exposure during CASTLE following BRAVO Shot, Colonel Karl H, Houghton reported "The fallout was at a dangerous level for at least 140 to 150 miles down wind, . . In addition the naval vessels of the Task Force operated in a fallout of approximately 300 to 00 mr per hour during shot day, Helicopters ‘were handled on the aircraft carrier and small boats were operating as required. Approximately thirty individuals received superficial beta turns as a result of this fallout, The burns were not disabling and did not involve the deep layers of the skin, The gamma exposures ran into several roentgens in most cases." _ As no record of over exposure by sampling personnel has been found, it posed the question: crews? Were protective techniques proper for sampling Although the document was issued prior to the Kieffer-Pinson versus Atomic Energy Commission controversy, Dr.’ Plank on 23 October 1955, stated clearly that any. aircraft crews working for him were going to be given the antiradiation protection he believed necessary,-> The controversy subsided because extensive sampling experience supported Air Force findings. Nevertheless, the 926th Test Squadron carried out rigid safety precautions during all operations, 16 239 AFWU/HO SWEH~2~003),