CHAPTER II, SECTION 3
a 2-foot radius circle, and that it remain on the
line of sight from Station 1320 and within the
field of Station 1528. To accomplish this requirement, mooring winches of approximately
30,000 pounds pull each were located at the
corners of each barge, necessitating reinforce-

ments below deck to properly transfer the loads.

Power for each barge was supplied by two
15 KW, 120/208 volt, 3-phase, 4-wire, 60-cycle
diesel driven generators. During the outfitting
and pre-shot period, one generator supplied
power for scientific purposes with a connected
load of 12.5 KW, while the other generator provided an estimated load of 14 KW for utilities.
With the generators operating separately, it was
possible to maintain good voltage regulation
on the scientific load. However, when personnel
disembarked prior to the actual test, the gener-

ators were paralleled. Since no utility power

was then required, good voltage regulation was

possible. A stand-by generator was thus available since either unit was capable of carrying
the scientific load separately.
A

signal-controlled

magnetic

contactor

was connected to the lighting panel of each

station so that all lights could be turned off by
signal. This apparatus also controlled a target
light array consisting of floodlamps (pointing
vertically) which were mounted on top of Stations 10, 11, 12 and 13. Timing signals and

telephone service were provided through plastic
armored submarine cables running from the
island timing station to the barge stations.

These cables terminated on the barges in a cast

Figure 2-32.
Page 2-50

iron junction box and were supported at the
box by a specially-designed frame. From the
terminal box, the cable led through conduit to
the zero timing signal cabinets located in the
scientific enclosure of the stations. One of the
signal cabinets also contained telephonelines.
Prior to each mooring, the location of each

anchor point and the barge working point were

established by surveyors. Marker buoys were
set over these points. Anchors connected to
mooring buoys were dropped by a specially-fitted LCU which was maneuvered on a course to
the working point marker buoy. The barge was
later attached to the mooring buoys with wire
from the mooring winches. With surveyors on
shore and on the barge directing movement, the

barge was workedinto position with the winches.
In setting the barge anchors, the survey points
used in Eniwetok Atoll were the west end of
Gene, and Boru located 650 feet northwest of
Gene. In Bikini Atoll they consisted of Station
1528, George, and a leaden tack, called Tony,

located in the reef 15,000 feet northwest of
George.

After the initial experiment in Eniwetok
Atoll, Barge 12 was modified for use as living
quarters off Ursula due to the island radioactivity. Three lavatories, two enclosed showers,
a hot water heater, a Navy cube, and an 8’ x 23’
canvas cover on the stern of the barge were installed. After this temporary use, the modifications were removed and the barge was returned
to Elmer.

Station 12-76% Complete

Select target paragraph3