8 (eee MEMORANDUM FOR RECORD (Cont'd) Protection of Transient Shipping During Operation CASTLE Between 2% February and 1 March 1954, WB-29 aircraft per- formed weather and cloud tracking missions in ell four quadrants from ground zero. Wo surface shipping was sighted on these missions, three cf which were flown to the east northeast of ground zero, cne on 27 February and two on 1 Mareh 1954. a. The P2V and destroyer search of the Eniwetok/Bikini Cenger drea madem contacts. is a mtter of interest, a destroyer security steep on 17 Feburery 1954 encountered one Japarese fishing vessel, the Hiyagikenajinoickonpiramarn, 26 nantical miles on true bearing of 40 degrees from Eniwetok Island. This ship was escorted toward the northern edge of the Danger drea and left on course 315 degrees, 9 knots with the recomendation that air patrol observe its subsequent novements. No further contacts with this ship were reparted. 4s a summary, the CIC BAIROZD was contacted periodically pre-shot end reported no transient shipping in the area. R. &. BOUSE Lt Cal, USar t —\ Chief, Tech Branch, J<3