This document consists of of 19 pages Series B f i a cn Fi ga Copy No. | 2 UNITED STATES ATOMIC ENERGY COMMISSION WASHINGTON 25, D. C, February 24, 1956 Honorable Henry M, Jackson Chairman, Subcommittee on Military Applications Joint Committee on Atomic Energy Congress of the United States Dear Senator Jackson: Dur ing General Starbiratsa appearance before the Subcommittee on Militars Anplicctions of the Joint Committee on January 23, 1956. 4 Gisecussion took place relative to the testing ov live nuclear warheads in the Ding Dong rocket and the Nike 3. As requested at the hearing, the following elaboration of testimony is provided relative to the need for the testing of the complete weapons to include nuclear warheads. In producing a nuclear warhead for a missile, as for a bomb, it is necessary to follow a procedure whereby the weapon is tested in various stages of development so as to insure that it will operate peliably upon completion and he capable of being stockpiled even without a@ true proof test of the complete warhead-missile system, The procedure followed makes use of extensive laboratory tests and of flight tests to achieve this reliability. ° Pre-production test programs can be divided into three pheses. In the first phase a laboratory nuclear device is produced and fired to test experimentally the new design principles incorporated, The resulting nuclear system design is usually sufficiently close to the laboratory device design to insure a reliably predicted behavior fox the stockpile weapon. In the second phase the non-nuclear components developed for the stockpile version are tested individually in the laboratory. Here, by means of test cells, cold-chambers, vibrators and other environment simulating equipment, the resistance and functioning of these components are examined under conditions ‘iore extreme than expected in actual employment. In the th’! phase all components are assembled and tested as 2 con.slete system with the exception that dummy nuclear material 223 usually dummy high explosives are substituted for the live material. The arming, RESTRICTED DATA This document contains restricted data as defined in the Atomic Energy Act of 1954. Its transmittal or the disclosure of its contents in any manner to an unauthorized person is prohibited. -lCATS AD 12 ao e Lat Ny SECINIEI

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