Department of the Air Force Report, 1996

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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-lb/ft2. 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-lb/ft2. 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-lb/ft2 if a different choice of Bis made.
C-
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Q)
a..
0.1
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/
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l
0.01
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
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RTI