¢ Nt oe : 7 “ y I e CHAPTER 5 a 5.1 GENERAL RESULTS, SHOT 9 Let The Shot 9 weapon was dropped on the Frenchman Flat testing area by a B+50 aircraft at 0729 hours (PST) on & May 1953. The burst height WAS 3c} ft avove ground level or 555€ ft MSL. The yield by radiochemical determination was found to be 26 KT. The B-36 aircraft took part in this test; the 5-47 aircraft did not. Because of the lower yield, the ‘ test aircraft was positioned closer and more nearly over the burst point for Shot 9 than was possible with the larger yield weapons in the IVY tests. In the position chosen, the aircraft received both the incident and reflected shocks. similar. Sel The response to the two shocks was remarkably [ood blast response data ware obtained. ATOCTART FOSITICN, DIFUTS, FLIGHT DATA Information pertinent to the exposure of the B-36 aircraft in Shot 5 is summarized below: a. Altitude, “SL, 25,135 ft ; o. “Weapon curst height, 2423 ft above zround level, 5558 ft MSL a. Slant rance at first snock arrival, <4,700 ft £. g. h, i. §. True zrounc sreed, 185 mots True headings, 250° Aircraft attitude, 27,59 nose hich arele of incidence of chock front, 54,.8° Snock arrival time, first shock, <1.035 sec; second shock 25.47 sec c. Horizontal ran-e at shock arrival, 14,500 ft e. “True airspeed, 262 knots k. 1, Feak overpressure (WADC}, 0.15 psi (first shock) Feaw overpressure (AF CS 2), 0.165 rsi (first shock) mM. lalcul.tec vrogs weigrt at cnet srrival, 442,543 lo ne Gentes of veavcty .oeation at enoes arrival, 22.7% MAC lier ft plcitan wer ahuwee is aged uron data rem the "4" ere, Toe Lt 4 ig e D> e 9° s .