Y. It is now definitely indicated that the military should conduct 8 weapuns effects test at the Nevada Test Site in the spring of 1953. The advantages accruing from such a test and pertinent considerations are as follows: a. The yield of the weapon would be established in advance, thereby permitting orderly planning of a test program. The time interval of 17 months would insure complete evaluation of GREENHOUSE and BUSTER-JANGLE data and integration thereaf into the test program, organi- zation of staff to conduct the test, and adequate time for construction and instrumentation. b. The military would contrel factors of time, ailocation of area surrounding ground zero to desired projects, types of shots (air burst, surface or unterground), al- location of air space in general vicinity, personnel involved and radiological safety operations in the test area. e. Reduced security regulations, consistent with data obtained, would expedite release of information and allow maximum participation. There is no need for "Restricted Data" classification of the results.of exploding a 10 to 30 KT equivalent bomb. This is manifestly opposite from a development test, wherein the yield is "Restricted Data" which hampers seriously the compilation and distribution ef test data and studies. : d. Maximum utilization of terrain would be afforded for maneuver purposes under conditions as realistic as safety conditions would permit. eo. An all-military operation would afford an opportunity for one or more of the services to test operational procedures for delivery, including the assembly of a stockpile weapon with nuclear components of the desired yield, transportation from the designated national stcrage area to the test site, and final delivery with the desired ground Zero.as the target. f. For early 1953, there is no other announced atomic test. Seientiffiic personnel, project personnel, instruments and other equipment will have served their purpose at the tests planned for 1952, including IVY as now scheduled, and will be available. generally now is most which of detonation type burstof 8.is The . havingan approximate anair ‘desired a device yield, ..! m Peereege of 20.KT. | ee Seresult or viNGLE,It 7 : ~ : ee 2 is probable tha urther information on either a surface or an underground burst, or both, may be necessary for the proper eveluation of this type of weapon and another experiment of this neture may be necessary. 9. It is recommended that you request the JcSto: a. Obtain Presidential approval of a military effects test to be conducted by the military services early in > "att ad

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