Project 5.9- Weapon Effects on Missile Structures and Materials Lt C. J, Cosenza OBIFCTIVE The ultimate objective of this test is to determine the vul- nerability of certain ballistic missile structures and materials to a nuclear fireball. The immediate objective is a determination of the amount of material vaporized from the surface of an object exposed within a fireball and the variation of this material loss with shape, orientation, range, and the type of material involved. Further, an attempt is being made to measure various phenomona occuring within a fireball by various methods of instrumentation, y INSTRUMENTATION Six specimens were equipped with minature tape recorders. Fach instrument recorded six data channels as well as two timing channels. The data being measured consisted of specimen temperature and accelerations, and the rate of vaporization of the surface material. In addition, many specimens contained mechanical devices for obtaining measurements of peak overpressure within the fireball and time histories of the specimen accelerations, RESULTS © No results are available at this time. The radiation level of the recovery area is so high that no specimens have been retrieved. Aerial photographs have been taken to preserve any evidence of the penetration of the specimens into the ground. The photographs will be used later to aid the recovery effort. CoPizy a ike Re ~ yi

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