◆ SpookStack

Figure 24 shows the percentages of malfunction-turn impacts in 5° sectors for no breakup and for breakup qa’s of 20,000, 10,000, and 5,000 deg-Ib/ft’. For B= 1,000, theoretical Mode-5 impacts are also plotted using best-fit values of A. This value of B was chosen since it is currently used by RTI in making launch-area risk studies for the 45th Space Wing. In the sectors from +80° to +180°, where most of the population centers are located, fairly good data fits were possible for all breakup qa’s except 5,000 deg-Ib/f’. No value of A could be found to produce a good fit with B = 1,000. The bottom plot in Figure 25 shows that an excellent fit between malfunction-turn and theoretical data is possible for qa = 5,000 deg-Ib/ft’ if a different choice of B is made. 100 no breakup 20;000~ 10 Percent in 5-deg sector (%) 0.1 0.01 ee 0) 20 40 60 80 100 120 140 160 180 Angle From Flight Path (deg) Figure 24. Delta~GEM Simulation Results with B = 1,000 9/10/96 62 RTI