of firing at either Eniwetok or Bikini (small-yield devices for
Eniwetok) had to be established.
If weather were bad at Bikini
and good at Eniwetok, for example, then much time would be saved
if a choice of shooting at either atoll were possible.
and S¥Yor6
threes,
Two shots,
were planned for Eniwetok and the remaining
~s
SHo7S 3, 4| Ald S-
(see next paragraph)
were plannea ¢.~ Bikini with the provision that if weather were
not satisfactory over a period of time at Bikini the possibility
of firing additional shots at Eniwetok would be considered.
Fur-
ther, certain alternatives were included taking into account weather factors and the possible utilization of both atolls on an interchangeable basis.
The third shot in the series,
7 April on Eninman Island at Bikini.
successful
S07 3,
was detonated on
The test of this device was
_and as a result the
jevice,
» Was cancelled from the
program, thus reducing CASTLE to a six~shot operation.
the unexpected stecess ot
the
Shor )
device was cancelled and a revised
a
;
» called SHo7S (already referred to,
i¢
Also, since
.
was added.
The
SHo7 4
device was detonated successfully on 26 April
and although S#o7 G@ was planned to follow that shot, poor weather
conditions at Eniwetck made it necessary to fire Swo7 § at Bikini
“n 5 May with SA#o7G finally being fired on 1, May. The 14 May
139