pl (FLATHEAD) Project 5.1 - In-Flight Participation of B-47 - C. W. Luchsinger Lt. Robert C, Laumann Ob jective The objective of this project is to measure the blast, gust and thermal effects of a nuclear detonation on an in-flight B-47 aircraft. With the recorded data, the criteria and method used in the Be47 Wea~ pon 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 301 data channels were available on this shot to record bending, shear and torsion in the wing and horizontal stabilizer, thermal inputs to the aircraft, thermally induced strain, temperature measure- ments and overpressure. Prior to shot participation 95% of these channels were operating satisfactorily, Since last participation eight new gust information channels had been added at wing station 615, Aircraft Position in Space The Be,7 was flying at an absolute altitude of 38,000 feet, a speed of Mach 0.75 and on a heading of 300°T at both Ty and shock arrival. At To, the horizontal range beyond ground zero was 3,500 feet and at shock arrival it was approximately 38,000 feet. Results Thermal: Thermal inputs were negligible since the aircraft was pos- itioned for gust data, COPIED/DO: LANL RG 2