| = - 437 E (PRIE) Project 5.9 - Weapon Fffects on Missile Structures ani Materials tt C. J. Cosensa ESTIYE The ultimate objective of this test is to determine the vulnerability of certain ballistic missile structures end materiale to a nuclear fireball. The immediate objective is a determination of the amount of material vaporised from the surfece of an object exposed within a fireball and the variation of this material loss with shape, orientetion, range, ari “he type of material involvei, Purther, an attempt is being made to seagure various phenomone oceuring within a fireball by watious methots of instrumentation. JNSTRUMENTATICN Six specimens were equipped with minature tape recorders. Bach instrument recorde’ six date channele as well as two timing channels. The data being measured consiste? of specimen tempereture and acoelerations, and the rate of vaporisation of the surface material. In addition, many Gpecimens contained mechanical devices for obtaining measurements of peak. overpressure within the fireball ant time histories of the specines eocelerations. BESULI3 BEST AVAI LABL E COPY No remulte are available at this time. The raiiation level of the Pecovery area is so high that no specimens have been retrieved. Aerial photographs have been taken to preserve ‘any evidence of the -metration of the specimens into tha ground. The photographe will be used later to aid the recovery effort, COPIED/DOF SANDIA Be