500

BIKINI ATOLL
0
=
O

2
4
6
!
{
{
NAUTICAL MILES
2

4

6

8

10

J

12

KILOMETERS

25

Figure 59.

30

CASTLE, BRAVO close-in gamma fallout pattern at H+

0745 local time (R/hr).

The same gritty, snow-like material began to fall on the Japanes
fishing boat at about 0815.

The crew, most of which was topside, ha

be-

gun to retrieve its long fishing lines from the water soon after the shock
wave passed.

The crew secured the lines and remained on deck to pro

the catch during the fallout

(Reference 82).

ess

The ship proceeded nor

toward its separate destiny, unobserved by the task force.

The name

this ship was the Daigo Fukuryu Maru (Fortunate Dragon No. 5).

The

memoire produced by the Japanese government detailing the ship's mov

ide
ents

is reproduced in Appendix A of this report.
At 0949, a P2V aircraft from VP-29 on Kwajalein, Sweeping the se

or

centered on a bearing of 65° from the shot point for transient shippi

gy

became heavily contaminated and aborted its mission.

ta

212

The aircraft s

Select target paragraph3