»rmation to the working flight log. -1gnated flight legs and transferred this erences for the The Task Group ..3 Air Operations Officer reviewed the legs for flight safety, and the information was relayed to the appropriate aircraft by the radio operator. D-day flights used one aircraft, with a second aircraft on standby. Surface ship reports, received by the Proj- to the upwind areas until active fallout had ceased. TABLE 2.1 Shot The flights were limited SUMMARY OF PROJECT OPERATIONS Date i Time t Location Aerial Survey Cherokee 21 May 0551M Bikini D-day D+1 Zuni 28 May 0566M Bikini D-day Altitude Absorption D4+1 D+2 D+3 Seminole 6 June 1255M Eniwetok D-day Flathead 12 June 0626M Bikini Mohawk 3 July 0606M Eniwetok D+1 Navajo li July 0556M Bikini D-3* D-2* D-day D+1 D-day D+1 D+2 D+2 a” D+2 . D+3 Tewa 2l July 0546M Bikini D-1* D-day D+1 D+2 D+3 D+4 * Preshot surveys of lagoon water outside the Bikini Atoll. ect 2.63 representatives in the Control Center, indicated when fallout had stopped in the close-in downwind sector. Ship reports. The aircraft was then controlled through the area to limits described by the The D-day flights delineated the upwind boundary and obtained some intensity readings in the radioactive area immediately downwind of ground zero. Two aircraft were used on D+ 1. One delineated the close-in radioactive area and confirmed the upwind boundary located on the previous day. The second aircraft flew an extensive search pattern to locate the edges of the contaminated area. The D + 2 survey re-examined the overall contaminated area. One aircraft was usually suffi- cient. However, the Tewa pattern was so large that two aircraft were needed. Flights on subsequent:days used one aircraft and tracked the area until the dose rates became too lowfor adequate delineation. Survey data which delineated the outer boundary and points of interest in the fallout pattern were plotted in the control center to guide the Project 2.62 surface ships with their oceanographic rien renttninieetee oo surveys. During the period prior to the next shot, each aircraft was scheduled to spend a day on Site Fred for instrument calibration and service. Two technicians calibrated each radiation detector at Kwajalein prior to and immediately following each survey flight and returned the Top Hat detectors to Site Elmer between shots, where a complete routine battery change and recalibration was performed. Oe eneam er DUE AP. CHIVI 7 = 4