——— f. alee (erTe) 4 Project 5.6 ~ In-Flight participation of an F-1O1A - Capt M.H. Lewin OBJECTIVE The objective of Project 5.6 is to determine the responses of an in-flight F-101A aircraft to the thermal, blast and gust effects of a nuclear detonation. INSTRUMENTATION The aircraft was instrumented with radiometers, calorimeters and pressure tranducers to measure the thermal and blast inputs and with strain gages, thermocouples and various other instruments to measure the aircraft responses to the inputs. positioned to theoretically receive For this shot, the aircraft was distributed up J load on the stabilator based on the positicning yield. AIRCRAFT POSTTION IN SPACE The aircraft was to fly at 12,000 feet absolute on an {inbound heading of O5O°T at a TAS of 800 fps. It wes planned that the aircraft would be 7,000 feet sport of ground zero at T, with shock arrival sy occurring (ESBS) later with the aircraft over ground zero. Actual shot day pesition showed the aircraft to bR7,540 feet short of ground zero at T, with shock arriving SE 1c with the aircraft being 390 feet short of ground zero. RESULTS Darages There was no apparent damage to the aircraft. Instrumentation: mentation, There was no apparent damage to the instru- Of the 50 oscillograph recorded psrameters, only three positively did not produce data. One radiozeter vas burned out prior CS FIED/UvE CANE KE . - 23 - 7

Select target paragraph3