2HET ships laid inside the lagoon seven stringa of mines (123 in all), Plaster filled but with complete mechanisms, One hundred mines were recovered after the shot, many of them conteminated, All obviously danagea nines were jettisoned after careful examination and photo- gephy; forty-eight in gool condition mere returned to Pearl Harbor for study. 25 All recovery work was caupleted befare YANKEE, Project 6.4, the Savy Burean af Ships sponsored project for proof testing atomle warfare coum-ermeasures, has received extensive coverage in CTG 7.3 Final Heport, and some in the Rediclogical Sefety ; chapter of this installment, so a description of the Project ie omitted here. The drone ships, YsG-39 ami TAG-40, espeoielly reactivated Crem the Heritime Adainistration *mothball" fleet, were necessarily devoted nearly exclusively to this Project. They were however used for ancther perpooe, at least in planning, when their evacustion potential was depended upon in some of the eerlicr RICTAR norties, therehy persit- ting other units to centinue essential work at Bikini, YAQ 39 was actually employed in an early HSOCTAR sortie laying fallout buoye for Froject 2058, As temier to the YAQs, KOLALA was emloyed almost ex- slusively on Project 6.4, assisted at ehot times by TASALOML, A PavS especially equipped to control the drones was used entirely on this Project. Two helicopters of Hih-362 were also fitted with drone sontrol gear to back up the P2V§ if necessary. gupper’ 2. Boat roal boxsts ascisted two of the three projects requiring minor support. Froject 1.6, 8 stinty of water waves sponsored by the >