~ established snd last-minute efforts had to be taken to obtain a sufficient number. These proved invaluable to meet the need for rapid transportation. On one day alone, 108 personnel and 900 pounds of freight were carried. A generous number of liaison aircraft or helicopters for short-range transportation is a must when operating in an area such as tiwetok. 13. The dispositionof naval vesselsand personnelnot required on the day of firing was determined by an analysisof the predicted activeparticles. This drift (surfaceand air) of radiologically predicteddriftwas calledthe Radex. It is importantthat thq possibilities of contamination (probableareasof contamination, thes that a “fall-out”will occur and degreeof danger)be thorou@ly understood prior to drawing up evacuationand re-entryplans. k earlybriefingof principal. comanders and staffofficersis desirable. Becausethe radex can neverbe a certainty,the plansmust,be must be flexibleand re-entryinto areas of possiblecontamination centrallycontrolledin the Task Force Headquarters. ~. The three servicesuse somewhatdiffer+snt techniquesand Ian@age. Operationsplans and ordersis8uedby a jotitheadquarters must avoid “canned”languageand shouldbe in the form of general directives. Operational. detailsmust be left to the commandersof the serviceunit tivolved. The originaloperationalplans issuedfor SANDSTONEcontaineddetailsand restrictionswhich laterwere rescinded in view of operattigexperiences.The submissionand reviewof the 32 SectionIII . .?

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