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from Shot Yellowwood did not develop to the extent predicted, and
launching signals were sent only to the launchers on Mary and Sally at H
4 13-1/2 minutes,
All rockets launched successfully,
The rockets on
Wilma were intentionally not launched, because it was apparent that their
trajectories would not intersect the cloud,
seen to have missed the cloud.
Even of those fired, four were
Three nose cones were recovered,
The
cap on the first nose cone was still intact, probably due to a short in the
circuit that fired the nose cap removal squib; therefore, no sample was
collected.
The second nose cone was froma rocket programmed to opep
at 30,000 feet.
of water.
When recovered, the nose cone contained about 60 ml,
At H / 9 hours the filter of this nose cone read about 1 mr, /hro
at the surface,
The third nose cone was from a rocket programmed to
open at 55,000 feet.
About 100 ml. of water had leaked into it, and the
surface reading of its filter was 25 mr./hr
at H 4 9-1/2 hours,
After
this shot, an intensive effort was made to determine the cause of leakage
of water into the nose cones,
It was found that the ball joint sealing the
forward end of the nose cone after sampling could bounce back a small
amount after closure, thereby permitting water to enter.
<A latching
mechanism was designed to lock the ball joint in its totally closed position.
This modification was then applied to all nose cones,
SAN BRUNE ruG
96
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