. a e TN BRT BNR INES Rae TR Oe he 21ae aie Fi ——_ ®@ . 2477 Mairi) . Project 5,1 - In-Flight Participation of a B-47 Afreraft - 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-flignt B47 aircraft, With the recorded data the criteria and method used in the B-47 Weapon Delivery Handbook may be verified or corrected, In addition, the project will provide basic research data for the design criteria of future USAF Jam aircraft, INSTRUMENTATION Two hundred seventy three data channels were available on this shot to record bending, shear, and torsion in the wing and horizontal stabilizer, thermal inpute to the aircraft, thermally induced strain, temperature measurements, and overpressure, Prior to shot participation 97.0% of these channela were operating aatisfactorily, There has been no newly adied instrumentation since the last participation, AIRCRAFT POSITION IK SPACE The B-L7 was flying at an absolute altitude of 30,000 feet,a speed of Mach C,75, and on a heading of 320° at both To and shock arrival, The alreraft was orlented tail to the shot; at Ty the horizontal range beyond ground zero was 29,000 feet, and at shock arrival it was approximately - Gy £3 rr F ane age x* 58 vn oS ot a RESULTS m7 E aa tea ete a page ¥ A Thermal: NSPEexperature rise was measured in the 020 in, 24ST av aluminum right aileron test panels painted with 0.8 absorptivity gray e@ paint, A emperature rise was recorded on the .025 in alum'num right elevator Wainted entirely black, Slight blistering occurred in some -~1L~ SNL le