“UNCLASSIFIED
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The first sample was taken for study, and divided. The first
part arrived with LCDR Vandergrift at the BAIROKO at 1330, and the
second arrived at Iniwetok with Lt. Woy by 1740. The party became
contaminated to some extent and arrangements were made to clear this
party at Eniwetok,
The tank control operator was subject to some exposure, and to
protect this operation a second helicopter containing a monitor was
a
Helicopter Operation ~ Radsafe Party No, 7
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This mission consisted of the dispatch by helicopter, of members
of the LAJ-3 group to the land cable on the test island, in order to
assist in the recovery of samples. It was essential that certain of
the samples on the land cable be recovered as quickly as possible in
order to take proper technical measurements. Winding the cable on to
the drum of the winch took considerable time, and starting the drm
promptly saved time for theAVR party which later came to the island
to complete the collection of the samples,
A monitor was sent as monitor for this party to accampany Dr. Ogle
and his assistants, The duties of the monitor included the clearing
of the landing for the other helicopters, standing by while the winch
was started, going forward along the cable in a jeep with Dr. Ogle to
recover samples near the zero point and later opening up the cache and
starting the radio communication.
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Three helicopters were used.
It was found after X-RAY Day that
the operation would be facilitated if six men were sent in on this
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operation, accompanied by two monitors, and this procedure was followed
on succeeding tests.
On X-RAY Day, a monitor cleared the landing of the other planes,
and want to the cache where he found the door blown in and the radio
inoperable, Several of the samples were missing from the cable as it
was wound in, and Dr, Ogle with the monitor went forward to locate these
samples, The mission was accomplished in less than two hours with very
low exposure (200 mr) to all personnel,
The monitor then returned to
the AVR and accompanied an unscheduled water cable party, -No~samples ~
were found either afloat or on the bottom of the lagoon, as far as could
be seen, Since the party went quite close to the zero point in the water,
considerably more exposure was the result. However, the total received
was well within the tolerance established. More of the missing samples
were recovered in later trips to the island.
Strategic Plot Center
STRATEGIC PLOY rcintained a fall-out chart of the lagoon, and nvarby
atolis of Kwajalein aid Ujelang.. ~ The,baiwetok atoll chart was kept up
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dispatched to accompany and remain forward of the operating plane,
ome
50019149
UNCLASSIFIED