12, Six safety experiments were made.
One was an effects
experiment to measure the distribution of radioactive material
scattered by a simulated accidental non-nuclear detonation of
.
ore—
a sealed-pit weapon containing plutonium Es The
results of this test will permit further development of handling
and storage safety criteria.
Five experiments were to determine
which among several designs afforded the maximum assurance of
safety in the event of an eccident in handling and storage of
‘y
operational weapons.
DELETED
.
Qoeration
HARDTACK
Ye
a
HIVES
DOE ARCHIVE
13. Work continued on plans for Operation HARDTACK scheduled
to begin in April 1958 at the Eniwetok Proving Ground.
On September
30, a program with the following test firings was being considered:
‘a. Reduced fallout devices in a wide range of yields.
Some of these will be proof-tests of larger weapon
prototypes.
Also, there possibly will be firing of
smaller reduced fallout devices now in the developmental
stage.
b, Very high altitude shots to determine the detectability of such shots and the nature of the phenomena
which oceur on detonation.
The knowledge of such
phenomena is of importance in connection with later
counter-missile warnead designs.
.
c. The firing of a prototype of an ICBN-IRBM warhead
and of warheads of the so-called “laydown" bomb design.
These latter are rugged delayed firing weapons which
allow the attack aircraft to make low-level delivery
and escape without being destroyed by the blast,
~
dad. The test of small warheads of limited yield for
use with various surface-to-air, surface-to-surface,
and air-to-air missile systems,
-i.j