aaa o Mm 22) = Project 1.3 - Shock Photography - J. Petes OBJECTIVES To study the mechanical effects of a water surface on shock propagation, To study the thermal effects, if any, resulting from heating of air near the ground surface on shock transmission, To determine peak shock overpressure as a function of distance both at the surface (water) and above ground zero, INSTRUMENTATION The instrumentation for this shot consisted of smoke rocket photography, Rockets were fired from a station on Eniirikku approximately 6000' from ground zero, The cameras were located on Enyn. RESULTS The rocket instrumentation and the photographic instrumentation were successful, The films were of very high quality and can be used to obtain all three objectives. The preliminary inspection of the films shows no thermal effects in the field of view of project films, 24 - 20 - a4

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