-.ning flights in the local area were reportedly concentrating contamizion to levels of 0.02 R/hr on engines. Table 33 presents the preliminary results from the AEC New York Operasas Office (NYKOPO) flights. Table 34 gives selected film-badge readings. -zom Enewetak and Wake islands.* AIRCRAFT DECONTAMINATION. The ROMEO shot saw a major change in per- cmnel use for aircraft decontamination. Maintenance personnel removed :vgine cowlings but did not participate in washing. Wash crews were di- .ded into four groups, each working a 6-hour shift with no breaks. Night -.ghting was improved and a trapeze-type safety harness was erected for -oarkers on the top cof B-36 wings. Small holes were drilled in cowlings to ninimize accumulation of contaminated wash water. The cooling off, or de- ay, period was increased from 20 to 44 hours, which significantly reduced zersonnel exposures (reportedly 25 to 44 percent). A B-~29 (No. 2195) ing of 1 R/hr on 30 March had a level of 20 R/hr 52 hours earlier. read~ The cata of Table 35 indicate that two other aircraft (F-84Gs) were contaminated in excess of 10 R/hr after ROMEO. Personnel Exposures The records usually do not disaggregate the exposures to specific units by shot, and no large groups were identified as having participated sclely in ROMEO. Data for some individuals are available, however. For example, the Chairman of the AEC officially observed the detonation. His recorded exposure of 0.03 R might be representative of individuals who viewed the shot from the flagship or a VIP aircraft. KOON The third CASTLE event, KOON, was detonated at 0620, 7 April 1954, on Eneman Island, located on the southern rim of Bikini Atoll. author has described this detonation as almost a "fizzle" * Since shot KOON was scheduled to occur soon after ROMEO, were left out for both shots. 267 Although one (Reference 92), some film badges