a7 Sead = zi TEVA) Project 5.1 ~ In-Flight Participation of a B-47E Aircraft ~ Lt R. C. Laumann OBJECTIVE The objective of this project is to measure the blast, gust, and thermal effects of a nuclear detonation on an in-flight B-47E aircraft. With the recorded data, the criteria and method used in the B-L4’7E Weapon Delivery Handbook may be verified or corrected. In addition, the project will provide basic research data for the design criteria of future USAF aircraft. INSTRUMENTATION Two hundred seventy three data channels were availatle on this shot to record bending, shear and torsion in the wing and horizontal stabilizer, thermal inputs to the aircraft, thermally induced strain, temperature measurements, and overpressure. Prior to shot participation, 97% of these channels were operating satisfactorily. There has been no newly added instrumentation since the last participation, AIRCREFT POSITION IN SPACE The B-A7E was flying at an absolute altitude of 35,000 feet, a speed of Mach 0.75 and on a heading of 270° at both zero time and shock arrival time. The aircraft was oriented tail to the shot; at zero time the horizontal range beyond ground zero was 26,000 feet and at shock arrival it was approximately 66,400 feet. RESULTS A 313°F temperature rise was measured in the 0.020 inch 24ST eluminum right aileron unpainted test panels. A 258°F temperature rise was recorded on the 0.025 aluminum unpainted right elevator, ffm oer Ge ~ ifs We Oe ee Y -57- Gs

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