wa
and activated pinex samples.
3-57
Another recovery method effectively employed
in HARDTACK was to effect early recovery of fallout by grappling containers
from their location on the funnels of the YC's by copter.
During Umbrella,
early rad-chem analysis was started on some samples at H/0 minutes.
ASP rockets were used to evaluate their effectiveness as cloud sampli-
ing vehicles.
Despite the extensive efforts put forth in air-sea combinec.
operations to effect their recovery, only a small percentage were located
and retrieved.
It was later determined that the rockets were not acting
properly upon entry into the water and were sinking before recovery operations were organized.
The most valuable experience learned from the rocke*
recovery was the requirement to have an organized sea-air team with comnon
communications and centralized control.
.
The main camps at Elmer and Fred were not evacuated for any of the
shots though extensive shoring operations were performed on the weaker
structures prior to shot Oak,
Helicopters and light aircraft were evacuat-
ed from Elmer to Fred on those events where overpressures were in the
neighborhood of 0.3 psi.
For shot Oak, helicopters and light aircraft
were evacuated to sea by the USS Boxer.
3.11.3
Bikini Recovery and Re-entry,
A basic precept of recovery -
re-entry was established as follows:
1. Recovery missions did not depart until after the initial Rad-Safe
damage survey had determined the radiation levels.
2. Two Rad-Safe missions were flown concurrently - one to the Northern Islands and one to the Southern Islands,
3. Based on data radioed back by these surveys CTG 7.1 gave per~
mission for recovery parties to proceed as he deemed appropriate.
On the Sycamore shot the Rad-Safe surveys and film recovery parties
Since Enyu
cro
of TU-2 and TU-S were launched by helicopter from the Boxer.
Unt
was cleared for re-entry before recoveries were completed the helicopters
returned to Enyu upon completion of the missions.
F Goprep/poz
se
/ 3s)
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