a
peace
The clock gages used in the tree stand for Project 3.3
These gages were recovered later than
the others, due to the radiation level on Site Uncle, Condensation
of moisture on the inside of the gage caused the aluminized coating
=
va oe "
eo
Snecmasritsenenesaeink
to peel, leaving no trace,
geenmanana
¢
ee
accounted for 11 of the 27.
ren
panrenctrerneareah
rantonstatetoninte
read.
a arae
All records had small deflections, which increased the percentage of error. It is felt that even with the small deflections,
the pressures presented are accurate to t 10 percent.
3.3.3
Presentation of Data
The pertinent data for Shot 3 are listed in Table 3.35.
Project
1.2b instrumented blast lines on the Tare Complex and on Site Uncle,
' -which were approximately 180 degrees apart. The pressure values from
ithe two blast lines are plotted in Figure 3.3. Here can be seen two
i distinct curves, one from stations on Tare Complex and one from
| Stations on Uncle. The value of the pressures obtained on the Tare
“Cémple “Tun as much as 20 percent less than pressures at comparable
distanp $ on Uncle.
It appears that there was considerable attenua-
tion ge the shock wave pressure due to a rainstorm on the Tare Com-
plex y ich 438 not present on Uncle.
This will be further discussed
act
in Chaptér
The a of the peak overpressure have been reduced to 1 KT
at sea level
plotted in Figure 4. 1, along with the reduced values
of succeedi
ots and a standard 1.6-KT free-air curve.
3.4 SHOT &
«
Recovery
3.4.1
©)
plex.
On Shot # there
Of the 31 gages
Wefe 31 cages used to instrument the Dog Com-
used, all but seven were recovered.
Station
122.13 was completely ldst*,and three gages from Station 122.11 were
not recovered. The mounts and--eepes from five of the nine stations
were blown or washed out of pdsition and over the islands and reef on
the ocean side. Most of the ds C3 were recovered by using a helicopter, although it was necesgaky to use a DUKW to recover those in
the ocean,
3.4.2
(|
Records
2
Of the 24 records recovered A but
pressure-time gages used on Shot 4 had beg
ee were readable.
jodified.
description of the modification can be founfin Appendix B.
Leal
* On Operation REDWING three of the four gages
were recovered,
Although the gages had been su
over two years, there was no evidence of water
ALL
A detailed
Although
inten,
i tation 122.13
ged in water for
gage.
The
records were good and when the cut-off switch was“disengaged, the
motor still operated from the original battery.
29