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MARTIAN
A‘prototype shelter was5 designed by¢
‘the Civil Defense> Liais
’ Branch and was tested during Operation BUSTER in the fall of 1951.
the design of the shelter primary consideration was given to simpli
and economy and to optimum salvage value.
in order to obtain maximum test data to support theoretical
the shelter was built in two sections, each of different material
construction, to compare the relative effectiveness of each.
Speci
the structure consisted of:
(1)
2h feet (3 8-ft.lengths) of 90-inch (I.D.) culve
(2)
2h feet (4 6-ft. lengths) of 90-inch (I.D.) culve
pipe of standard centrifugally spun reinforced concrete, wit
poured-in-place reinforced concrete ramp entrance; and .
pipe of standard 10-gauge ingot -iron corrugated multiplate,
a 10-gauge corrugated mitiplate and structural steel ramp
entrance.
‘These materials were joined at the center to form a 48-foot
shelter covered with 3 feet and 3 feet, 8 inches of earth over the
crete and metal pipe, respectively, with a capacity of 48 persons.
structure was located 800 feet from ground zero of Shots BAKER, C
and DOG, and a greater distance from Shot EASY, of Operation BUSTER
Shots CHARLIE and DOG exposed it to estimated blast, radiation, and
effects of greater severity from each shot than that at ground zero
a 20 Kiloton atomic bomb detonated at a 2,000-foot height. The shelter
successfully withstood the individual and cumlative blast overloadifpgs
with light to moderate observable damage. Final evaluation of radiation,
pressure, and displacement measurements will furnish valuable data
r
future consideration with respect to gamma radiation, reflected static
pressures from shock fronts, and dynamic overpressures, or wind dr
inside the shelter and their effects on occupants.
The data obtained from this test will be made available to t
FCDA for review and study, and its applicability to civil defense pr
tices for protective measures.
Instrument Loan Progrem
Instruments were provided for FCDA for use in the three tourifg
ec
exhibits, the "Alert America Convoys." These convoys have been prepgred
and are operated by the Valley Forge Foundation for FCDA.
pe
33
JOE ARCHIVES