Project 6.4 - PHOOF TESTING ON AW SHIP COUNT UEASURES Project Officer - G. G. Molumphy, CAPT, USN General, . The actual passage of the project drone ships through the fall-out is graphically presented in Fig. 1. From the re- covery points, the ships were returned to Parry where survey, recovery of samples and recorded data, and decontamination were accomplished. The proposed course was 80° but it was impossible to turn the YAG-40 to that course due to @ personnel error occurring during debarking. This inactivated radio control of course only; recurrence will be prevented“in the future by an additional check which has been introduced. Attempts to keep the YAG-39 with the YAG-40 failed due to malfunction of radio control apparatus which converted a speed change to a shut down signal. The net effect was that the two ships cannot be said to have been subjected to even approximately the same fall-out. ake ma ating the YAG=39 manned is expected to EcSe a Gamma Instrumentation owe. Oper- ee eNO ) * Gamma radiation was measured continuously at stations equipped each with 3 or 4 incremental dose fon chambers. On the VAG-39 there were 65 such stations and on the YAG~40 there were 72 vith ink-on-paper recorders in central recording rooms. There were no failures but performance was substandard on 6% of the

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