ay
for immediate combat usability.
Parts were strewn as far as 1000 feet from the original vehicle
location for the demolished vehicles while the least displacement was
50 feet for the side-on vehicle at 16,500 feet,
The effect of the water wave was not clearly evident from the
evaluation although it is felt that the water wave did contribute to
displacement and damage,
Preliminary studies of pressure records indi-
cate no extreme water wave,
CONCLUSIONS
In general, the desired transition of damage levels was attained,
A more thorough analysis will be made later.
Based on preliminary studies the damage agrees with predicted
damage levels using the formula and curves found in TM-23~200,
DIFFRACTION STUDY
OBJECTIVES
ay
aw
a
.
In consequence of the failure of theSARIN oon) Shot on
Operation CASTLE, the 6 x 6 x 12 foot target structure used, then at
Eniirikku by Project 3,1 was reinstrumented for the
of Operation REDWING,
(Zuni) Shot
The objectives were to obtain, for moderate blast
pressures, diffraction-pressure versus time curves at various points on
the surface of the structure and to make comparisons of these with
similar curves obtained on 1/36th scale models tested in a shock tube,
Thus, prediction methods of diffraction loading could be extended to
higher pressure levels,
INSTRUMENTATION
The target structure was located 9700 feet from ground zero and
was fitted with nine flush-mounting, Wiancko Type 3PAD, variable
TT
~ 22 -
=
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