was
4-ke
set for a longer run time.
New zero racks were designed for this operation to supply
power and arming signals ‘n the proper sequence for the actnal
firing of all surfece, barze, and underwater shots.
Three
types were cmpivoyec for “Zhe differing requirements of the
laboratories anc the DOD.
used,
Thirty-two of these r-7%3 ‘were
one at each zero aite.
Prior to detonation, #£CaC
personrel on the arming party instal°ed the zero racks ene
made a thorcugh check of all zero-racs functions before
buttoning-up the site.
Stric-chart recorders prov’ded a permanent record of all
signals sent out fron the Control Point,
Monitoring of
importé.it functions at zero sites anc at experiment stetions
was accomplished by wire and by radio.
Tone-telemetering
was the primary method employed for the AE? shots.
The
monitoring system for the DCD underwater shots was almost
completely radio.
For speciai experiments,
£G2G employed strip-chart
recorders to monitor tempereture,
‘umidity, and pressure at
zero-site or station locutions,
A new EGS&:9 world-time clock,
millisecond,
Point;
aczurete to a tertn of a
and four Bhangméters were located at each Control
these units were triggered by light from the explosion.
To assure good photographic records of a detonation,
2@
weather radar console was operated in each Control Point.
Resylts,
The six timing and firing systems successfully detonated
all thirty-three shots of Hardtack series.
fu.
oy
=:
The two Bikini
DCG
PAGE /#t