ae Esc. Project 5.4 + In-Flight Participation of a B-57B - let Lt £. M. Wells, Jr. TIVE The objective of this teat was to measure the effects of a nuclear Getonation on an in-fligtt 8-57B aircraft weapon systes. tt: All oscillograph power switches loceted in the bomb bay vers in the off position, resulting in complete loss of data, with the exception of eameras and “tesp tapes". This error vas a result of extremely atnorm) and adverse conditions prior to takeoff; in that, sufficient time was rot available to perform the instrumentation checkout in the norm] manner. Adequate precautions bave been taken to prevent a similar future cecurrence under any conditions. POSITION The B-57B vee flying at an absolute altitude of 10,000 fest on e 050°T beading et sero tine, Horisontal renge beyond ground sero at sero tise wes 2624 feet (aircraft traveling at 605 ft/sec ground speed). Aireraft position at the tie of shock arrivel (H + 12.5 sec) was 11,572 feet beyond ground sero. Heading, altitude and speed vere the same as at sero tine. BSUS Sinee the recording equipment did not run, there was so deta fros this test, with the excepticn of tesperature tapes end cameras. However, the mere fact that the aircraft was at its given position in space, relative to ground sero, at sero tine and time of shock arrival (E ¢ 12.9 sec), and returned with nc damage, provides positive proof of its delivery capabilities. Based on predicted response, and known position and prelisinary information ae : ied 4 Ai et wa §Se komm Lo roy 9 “pen, ad 4 AY Sino ya » 2 - COPY ¢