certain ship modifications were coordinated with CTG 132.3. These changes were requested
and werein the process of modification by June. Except for the last-minute revisions, the operational requirements for both aircraft and ships were firm by June 1952.
3.4.3
Experimental Programs
By mid-January 1952, both the AEC and the DOD had drawn uptentative proposals of test
programs that they wished to carry out on Operation Ivy. As result of a conference at Los
Alamos with representatives of AFSWP, JTF 132, the Division of Military Application (DMA)
of AEC, and LASL, in mid-February 1952, the planned programs of the AEC and the DOD were
consolidated into an over-all proposal for approval of CJTF 132 and the Research and Development Board. These programs were approved by CJTF 132 in the last week of February and
by the Research and Development Board in March 1952. The conference at Los Alamos examined the plans at that time to ensure that the program covered was possible and feasible
under the limitations imposed by the operational problemas, time scale, logistics, and performance predictions. The test programs are outlined in the Turquoise Book,’ and, except for
major revisions of techniques to be used in Program 2, only a few minor changes occurred
after this date.
3.4.4
:
.
Determination and Support of Project Requirements
It was necessary during early planning to assess the numbersof ships, boats, vehicles,
and aircraft. These numbers were reviewed and modified where necessary to eet the needg
of the operation as they became more clearly defined by progress in planning. in March 1952,
CTG 132.1 established a system of monthly status reports to be submitted by project officers,
task unit commanders,and staff sections of this organization. These status reports were for
the purposes of establishing support requirements and keeping the Commanderinformed of the
over-all progress in planning for Operation Ivy, In addition to status reports, requirements
were submitted by letter as they occurred, at frequent conferences, and by interviews with responsible project representatives.
The J-3 Section extracted and compiled the operationa! requirements submitted and integrated these requirementsinto the available operational means of accomplishment. This consisted in submitting requirements to JTF 132 for approval and necessary support by subordinate Task Groups. The J-3 Section monitored these requirements by direct contact with these
organizations.
3.4.5
Training
°
Operation Tumbler-Snapper at the Nevada Proving Grounds, in the spring of 1952, pro-
vided invaluable training for many of the personnel concerned with Operation Ivy. Many of the
ideas, techniques, methods, and much of the equipment tried at Tumbler-Snapper determined
the experiments or techniques to be used on Operation Ivy. Five F-84G sampling aircraft participated in Operation Tumbler-Snapper, and the crews gained valuable experience and training for their sampling mission in Operation Ivy by their actual penetration of heavy radiation
-{lelds in the atomic clouds to collect samples of bomb debris.
The Camco transport Dewars, which were produced in Somerville, Mass., and trucked to
Boulder, Colo., were first filled with liquid hydrogen, and the units were studied for characteristica under operational conditions in late April 1952. Additional information was gained in
the trucking of these Dewar trailers from Boulder to Los Alamos when the cryogenics system
was tested in June.
Assembly training for the Mike device was first carried out at Los Alamos on an assembly
of the
‘ The cryogenics system was also
_
21