eS
@
Program 2, Nuclear Radiation and Fallout; Projects
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Program 6, Systems Effects; Projects 6.1, 6.2a, 6.2b,
6.4, 6.5, 6.6
2.1,
2.2,
2.3,
2.5a, 2.5b, 2.6a,
2.6b
Program 7, Electromagnetics; Projects 7.1, 7.2, 7.4
Program 9, Cloud Photography; Project 9.1.
The locations of the instrument stations for these projects are
in Figure 78.
Details of each project are given in Chapter 3.
aircraft participation is given in Table 37.
ghown
TG 744
Table 38 indicates the
tions of some of these aircraft at burst time.
The Test
At shot time (0620), a rain shower between the fleet and ground
possibly extended to ground zero.
about 55,000 feet (16.8 km).
zero
The debris cloud reached an altitufe of
The lowest portion of the stem (estimatkd at
below 5,000 feet [1.5 km]) moved to the west at an average velocity o
about 17.3 mi/hr
(27.8 km/hr).
(Contact was made with this portion of
cloud at H+5 by Wilson 2, about 59 nmi
zero.
The intensity was 0,015 R/hr.)
(1.5 to 7.6 km)
mi/hr
109 km
the
to the west of ground
The middle segments of the clogd
initially moved north, then east-northeast at about 1].4
(28 km/hr).
The top section of the cloud moved to the east-nor
at approximately 34 mi/hr
CONTAMINATION.
(55 km/hr)
(Reference 16, Tab M).
The Wilson 1 aircraft encountered radiation intengi-
ties of 5 R/hr while collecting cloud samples.
Wilson 2, flying at 10,000 feet (3.05 km), made no contact with t
cloud while in the racetrack pattern between Bikini and Enewetak/Ujelahg.
Wilson 2 began a sector search at H+4 and located the cloud east of grpbund
zero.
This area was the forecast Ht+6 position of the 20,000- and 30,0p0-
foot (6.1- and 9.l-km) particle trajectories.
R/he was reported at H+5.5 about 100 nmi
A maximum reading of 0. —50
(185 km)
east-northeast of Bifini.
This layer of the cloud was probably responsible for the contamination[|subsequently noted at Rongerik and Rongelap atolls.
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