tho report has a primary operational viewpoint, and frequently departs in
phraseology and precision from the normal standards prescribed for a purely
technical document.
Since various independent technicel investigations
have been completed, or are in process, which closely examine the orny
facets of the radiological effects of the CASTLE events, the need for 3
coverage of the operational viewpoint appears vital for continuity and
development of better opcrational means of coping with the problems.
&.
The following general information on special aspects of the C..STLE
Operation is presented as background for Parts TWO, THPREZ, FOUR and FIVE.
&.
Seven detonations had been scheduled when the task force
arrived in the Pacific Proving Grounds.
Five of the original seven, plus
one substitute, were actually detonated,
b,
The planning date of 1 March 1954 wes established for detona-
tion of the first shet.
(1) The original shot schedule, probable yield and presuced
range of yield in magaton, wast
SHOE
PROB..BLE PRESUMED RANGE DETONATION
ae
(BRAVO)
XYKEE) .
“(Later revisedto
Late
T Maren 1954
1-18
1 Mareh 1954
6-10
22 March 1954
.125
2-3
4
065 = 4275
1-5
15-7
29 March 1954
8 april 1954
15 april 1954
1
0.3-2,5
$-10
~ (UNION)
YIELD
h-8
“«4
with yield 98 and range
of 7.5 = 11.5
(ECHO)
" (NECTAR)
(ROMEO)
(KOON)
(22 april 1954
(2) Because of adverse weather, the effects ef BRAVO end