assisted in decontaminating the harbor craft and small boats lfft behind in Bikini Lagoon during shots detonated there. A total of 31 the Utility Unit received exposures greater than 3.9 R during personnel of FASTLE. Task Unit 7.3.6 (Atomic Warfare Ship Countermeasures Test Unit This unit contained two task elements. The Drone Ship Ele 7.3.6.0, was made up of the specially modified Liberty ships, George Eastman) and YAG-40 (USS Granville S. Hall). included the Molala, whose primary bility was servicing the YAGs, and the Tawakoni, both of them responsiFleet tugs The principal purpose of the unit was tofluse the eee er ab Beers meee eee of the Utility Unit. and Decon- YAGS as data~-collection platforms for Projects 6.4 and 6.5, which required ee am Ssoe ee ee aire tamination Element, 7.3.6.1, The Towin tamination and the ease with which they could be decontaminate - both ships to be positioned in the area of heaviest fallout. oth YAGs were instrumented with fallout-collection devices, as well as ith various in order to determine their susceptibility to allout con- test materials, Each ship had a shielded control compartment and, in addition, could be oper- ated by remote control. topside, While YAG-39 mounted a washdown system YAG-40 did not, thereby providing a coritrol situation for the qxperiments being conducted on board both ships. The YAGS were employed on shots BRAVO, ROMEO, UNION, and Y Neither ship had a crew on board for the first two shots, but EE. the lat- ter two YAG-39 carried a skeleton crew that controlled the shigg from the shielded control compartment. s for The usual pattern of operation crews to sail both YAGs to Bikini Lagoon prior to the tests. fore the ships left the lagoon, most YAG crewmen were transferred to other TG 7.3 ships for evacuation sorties. Skeleton crews then sailed the debarkation point in the anticipated fallout area accompanied Molala. The tug removed the skeleton crews and took over the mote control. (There is evidence that the Bairoko might also remote-control capabilities.) Gs to a the Gs by reve had An Enewetak-based P2V-5 aircraft] equipped with remote controls assumed control of the YAGs for the duratipbn of shottime activities. The skeleton crew on board YAG-39 could also 363 fontrol