SRC RZEOT OD 71 UUUY REPOSITORY — NaiA ; foils 411992 3 ‘cCoLLECTION RO 228 5! BOX No. | 195 . INh3- 326-13 vis) roLper “RH 7 } as bs pothole vashet awe : DECLASSIFIED 3.6 oa BLO. 12080, Seo. 2% 22 ra sonst Bie LO OM.ASEPe samTestsDaa, October 23, SWPTS 400.112 SUBJECT: ak TO Soci ¢ Da SSR Military Weapons Effects Test of Atomic Weapons Barly in 1953 Chief of Naval Operations, Department of the Navy, Washington 25, D. C. 1. The purpose of this letter is to advocate the conduct of an atomic test Por the purpose of determining the military effects of atomic weapons. A differentiation is made between a military effects test and an Atomic Energy Commission de-velopment test. The former employs an atomic device of generally standardized construction and predictable yield In crder to de-. termine results and effects, whereas a development test is conducted to test new concepts of the atomic device itself. 2. Since the atomic attacks on Japan in 1945, the United States has conducted the following operations involving tests _of atomic devices isi EF ee Bid oes iG mH a, Operation CROSSROADS - an effcets test, canducted pM evi seage Bay b.. Operation SANDSTONE - a development test, conducted for the purpose of proving new concepts concerning atomic ‘eipbbe33? weapons. AE ze85: 5/8e eS ec. Operation RANGER 7 a development test for testing theories concerning low yield weapons. a epiare: we —es ENSSah OP Sa Bhs 3 SANS | i - d. Operation GREENHOUSE - as originally conceived, a development test of fission and thermonuclear reactions. aca gS YS Siar\ ots ifs weapons on ships. Wes CBE . 2).00° 0 St = nd o LADY pes 2 a pos fe | ~ USE tg z | & ED sus TB as ZY bie ge foe VINAbe Ltesek2etelative merits of surface and underground atomic explosions. Advance plans are being made for SNAPPER, 2 development test of a currently undetermined number of relatively low-yield atomic devices at the Nevada Test Site in the Spring of 1952. Operation ‘IVY, a development test of a very high-yield device criginally my Pepe pat z \ i SE ggg {volving a minimum of effort in the effects field, while a5 325gANGLE ‘is entirely an effects test designed to discover the . Ingle 3. A combined test, Operation BUSTER-JANGLE, is now in BUSTER is a development test ff fio ole | NEP frosress at the Nevada Test Site. | SEG bea Pe Subsequently, one shot became primarily an effects test. - Qo BePyi pSQe = | primarily to determine the effects of known atomic EM AEcbaSGHN rn : ¢| | 2gm as nenpr gnnaiaan — on

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