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TU<5 JOHNSTON ISLAND + ADDENDUM
Objectives.
The primary objective of TU-S was to supply experimenters with an
accurate sequence of timing signals, related to burst time, for the purpose of starting and stopping their equipment on both the Teak and Orange
events.
’
Other Objectives of TU-5 were:
1.
To determine the time of burst with respect to WWVH.
2. To provide a system of radio links to experimenters stations, over
which voice-time announcements synchronized to the timing system
could be transmitted.
-
Procedure.
Early in 1957, preliminary planning for a timing system to meet the.
special requirements of Teak and Orange was begun.
As planning progressed,
it became apparent that the regular sequence timing system planned for the
surface shots on HARDTACK would not meet the special requirements of Teak
and Orange.
A new sequence timing system patterned after the air drop
system used on Plumbbob for the John event, was developed in our Boston
laboratory,
This system was integrated into the Bikini hardwire timing
system for HARDTACK.
The timing system was assembled and operationally tested under simulated field conditions in the Poston laboratory prior to its shipment to the
forward area,
‘
In February, 1958, the equipment was shipped to the forward area and
installed as an integral part of the Bikini timing system.
The installa-
tion was completed and operationally checked out in preparation for the
scheduled Teak and Orange events.
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With the cancellation of the Teak and Orange events from the Bikini
schedule, it "t necessary to remove that part of the timing system from
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