for immediate combat usability,
Parte vere strewn as far ag 1000 feet from the original vehicle
lcesticn fer the temolishe? vehicles while the least Msplacessr? was
50 feet for the side-on vehicle at 1¢,500 feet,
The effect of the water wave was not clearly evitent from the
evaluation although it is felt that the water wave did contritute to
Gisplacement and damage.
Prelirinary etuties of pressure recoris inii-
cate no extreme vater wave,
CONCLUSIONS
In general, the jesired transition of damage levels was attained.
A more thorough analysis will be mate later.
Based on preliminary stwiles the demage aprees vith prelicted
Gamage levels using the formule ami curves four! in TM27-20.,
DIFFRACTION STUDY
QBICTUIVES
In consequence of the failure of the
Koon) Shot on
Operation CASTLE, the 6 z € x 12 foot savvet structure used ghen at
Eniirtkku by Project 3.) was reinstrumented for the
of Operation REDWING,
(Zuni) Shot
The objectives vere to obtain, ‘for poterate blest
pressures, 4iffraction-presesure versue tine curves at various points on
the surface of the structure and to make comparisons of these with
einilar curves obtained on 1/%6th scale molele tested in a shock tube,
Thus, prediction methols of diffraction loading could be extemied te
higher pressure levels.
INSTRUMERTATION
The target structure was locate’ 9700 feet from ground sero and
was fitted with nine flueh-sounting, Wiancko Type 3PAD, variable
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