SIC AMORE EVENT
SPERASSON HARDTACK
1.
Ths SYCAMORE DEVICE was detonated at i50CM, 31 May 1958, on a
barge off Neca (Charlie) ‘alan Rixind Atoll. Ths
eicud rese to 46,000 feet within the first 22 minutes, according
tepoerts received threvgh ACC,
to airewalt
C:mminisations diffienlties and lack of
early radar aicud Llaformation datrastad from our affective sentrol sf tha
situation,
2.
P2¥ sentro, was not aczomplished until Ht7 hour.
Initial search
was Esow to “koe, and from Chea aeress tha lagoon son the 30-degree redial,
jin-rpasing the rangs of tha searvh in iO=degrae increments.
ings ware sbtained.
Negative reai-
The P2V was vectored acrosa ‘he western perticn cf tas
lagoon and along tha south and north island chain.
The highest reading,
5,000 ar/ir, was cb’ained in the vicinity of ground zero,
vectored sash of Biiini ?:2 120 miles.
The P2V was then
A seconia P2V¥ arrived at ‘8COM, ani
4t was rectcrad on a bearire af 280 degrees for 120 milaz from Byrini,
failewad by a line on the 20—jegree radial for 120 niles.
No signifi:snt
reedings vara enccuntered,
3.
The helicopter suréey wag sommenzed at 1545M,
Tne highest reading
attributed ts this shot was recorded on Chariie Igland:
4.
10,000 mr/hr.
Fallout foreras® predi~ed the heaviest soneentration betsjcen
the 300-deg7se and ‘ha 340-logrea radials.
It.is astimatad that all falloar
feil within “he fcrecast , a Some
falleut was detectei to the ncz*heast tne to a small eezment of the cicud
whish moved in an egstarly direevion, but this vas not tonsidered signif{:anr.
Busy
TAB a
SORES
att
Age Vet
.o7cT
age
iy)