a oe NATURE AND SCOPE OF INVESTIGATION wv” In essence, the work consisted of positioning an instrumented air=craft at some point in space relative to the burst point of a nuclear device and then of measuring certain of the aircraft responses for compar- ison with values obtained analytically. Since the purpose of the work . was to determine delivery capabilities, the aircraft was manned during the test, and the flight pattern was one that could be used for a bombing mission. Tne same B~36 aircraft employed in IVY blast effects testa was further instrumented for exposure in Shot 9 (8 May) of UPSHOT-KNOTHOLE. Instrumentation included the measurement of: overpressure; wing, fuselage, and horizontal stabilizer bending moments; horizontal stabilizer shear; and nose, tail, wing tip and center of zravity accelerations. In ad- . 1.3 | tat ESI Pees | ° On MME eee Pt 7a, ft fe vey Peete! alas 4 a MBBS fy Se he fe WARP we SO dition, photographic instrumentation was employed to measure and record the deflection of certain components. The remainder of this report is written as a composite presentation of results obtained by Project 5.3, UPSHOT-KNOTHCLE, and by Project 6.10, IVY, as mertioned in the Preface. er It ‘yy oF were tote fae | § ey mm ny im NOTE: