APPENDIX "E"
DRAFT LETTER TO THE JCAE
1, On September 17, 1957 I wrote to you concerning our
plans for testing in Operation HARDTACK,
the spring 1958 test
series at the Enilwetok Proving Ground, and noted that as our plans
were further developed,
I would keep the Committee informed.
2. We now have a reasonably firm program of tests in hand
which has been approved by the Commission and concurred in by
the Department of Defense.
about April 15,
Operation HARDTACK will start on or
1958 and will consist of about 24 firm laboratory
and DOD effects shots,
In addition, there are three contingent
shots whose firing depends on the outcome of their counterparts
among the firm shots,
3. We are planning to conduct a small series of nuclear
tests underground at the Nevada Test Site in the fall 1958, to
be known as Operation MILGRACE,
About four low-yield devices
will be fired underground in existing tunnels.
The detonations
will be completely contained and no fallout will result.
4, Besides these tests, we plan to conduct up to ten safety
tests in 1958 at the Nevada Test Site.
is to determine that,
The purpose of these tests
if certain designs are detonated
accidentally, no nuclear reaction would occur,
5. The President has authorized the expenditure of the
required special nuclear materials for these tests.
description of the tests,
The detailed
the devices involved and their
objectives is attached.
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Appendix "E" _