se
ee
we
Sen
tel
3 5.
Boe
ate
6
Other
tesis
included
drops
of heads
attached
.
wey
ay geen
“
A
1
Fem
yo
te
parachutes
from
100 feet,
free
The last sim tesus oumloyed
a st
yee
necprens toot on the foruard seal,
to
2
fail dreps with the breathe hole closed, and parachvie
drops o
1aAg
Aw Witten
a vacuum (23 inches of Hg}, similer to the neair-vacuum of the upper atrospherc,
had been induced,
Examination of these heads after recovery showed that the
vacuum remained when the breathe hole vas sealed,
ten heads were conducted over a five-day period.
Altogether, 27 tests using
These tests, and further testing
at the CDC plant, indicated that ceriain points around the nose ball seal join
and the operating mechanism vere susceptible to minute leaks when the pressure
difference between the interior and exterior of the filter section increased,
fhe neoprene boot covering the operating mechanism had proved, during the Pacific
firings and later tests, to be particularly susceptible.
greatly increased the reliability of the sealing.
Redesign of the boot
Following installation of the
redesigned boots, only infrequent minute leaks were observed.
These leaks were
repaired as they occurred until the sealing was tight enough that a pressure
difference of 23 inches of mercury vas maintained for 10 minutes with no observable
drep in the manometer,
C.
Two flight test rounds were fired at NAMTC, Point Mugu, on 24 July.
All
programmer function times were as plemned, and both rounds were judged to be
quite successful.
Since both rounds were acquired by the range radar, search
aircraft pinpointed the impact areas by radar quickly.
recovered the heads,
4 rescue craft then
One head was completely dry, while the other contained