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APPENDIX
DRAFT LETTER TO THE CHATRMAN, MLC
1. The results of the IVY thermonuclear experiment indicate certain reorientation of the thermonuclear weapons program
in order to insure broad and rapid progress in this activity.
The revised program and its bearing on the timing of the CASTLE
wy
operation are discussed below.
Bite Mike shot behavior unfortunately
did not dispel these doubts.
In addition,
it is now apparent
that material available for this weapon indicates November as
the probable earliest date for its full scale test.
3. The Mike device behavior leads us to believe that
adaptation of its design to a weapon or weapons offers real
Ne
promise,.
convert the Mike type design to a weapon configuration, however,
involves a great amount of engineering and process development
and test, including a number of important tests now scheduled
in the UPSHOT series in the spring of 1953.
4, We have approved programs on the above type designs
and intend that they be prosecuted with all vigor and dispatch
in order that the possible models and the date of their readiness
may be determined at the earliest practicable date.
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Appendix