erences for the designated flight legs and transferred this information to the working flight l._
The Task Group 7.3 Air Operations Officer reviewed the legs for flight safety, and the inforin.
tion was relayed to the appropriate aircraft by the radio operator.
D-day flights used one aircraft, with a second aircraft on standby. The flights were limited
to the upwind areas until active fallout had ceased. Surface ship reports, received by the Pro}TABLE 2.1
Shot
SUMMARY OF PROJECT OPERATIONS
Date
Time
Location
Aerial
Survey
Cherokee
21 May
0551M
Bikini
D-day
D+1
Zuni
28 May
0566M
Bikini
D-day
D+1
Altitude
Absorption
D+2
D+3
Seminole
6 June
1255M
Eniwetok
Flathead
12 June
0626M
Bikini
D-day
D-day
D+1
D+2
Mohawk
3 July
0606M
Eniwetok
Navajo
llJuly
0556M
Bikini
D+l
D+2
D-3*
D-2*
D~day
D+l1
D+2
D+3
Tewa
2i 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 repr: seatatives in the Control Center, indicated when fallout had stopped in the close-in
downwind sector. The aircraft was then controlled through the area to limits described by the
Ship reports.
The D~day flights delineated the upwind boundary and obtained some intensity
readings inthe radioactive area immediately downwind of ground zero.
Two aircraft were used onD+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 sufficient. 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 low for
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
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.
17