of the Yoke and Zebra tests to leave a dozer and mobile crane on the
Zero island to be tested until 1300, X-1.
As was to be expected in
preparing for the first shot the valuable experience obtained was taken
advantage of in successive shots.
The scientists also made the most of
the capabilities of the engineer assistance available to them, and the
lmowledge of the scientists’ needs gleaned by the construction engineers
during the first test greatly facilitated preparations for the following
tests.
SHOT "Y"
B.
Through several "on the spot" conferences with the scientific
group leaders, firm plans were made and carried out covering the Y-4
to Y-1l periods.
At Y island this phase became remarkable by its
smoothness and orderliness.
By Y=2 all but five engineer troops had
been evacuated from the island.
Also all equipment and supplies from
the various task groups were evacuated except that which could be hand
carried off the island, or which could be moved in the limited A&C
transportation left until Y-1.
All this was possible because of the
cooperat ion between the sceintists and 7.2 troops and the experiences
of the first shot.
A few auto service mechanics and a small air
compressor for the purpose of minor motor adjustments and inflating
tires were left on Y Island until <1 day.
The plan followed was to move all non-essentials from the island
to the extent that by Y-2 only that which conld be evacuated in 3 LCM's
and 1 LCT was left.
This number of boats was known to be available a
week prior to evacuation time in the case of Y test.
There was suffi-
cient equipment for all needs on the islands imtil the last moment.
Section Vi-¢
.
4