Department of the Air Force Report, 1996

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The entire Delta history through 1995 is depicted rather compactly in bar-graph form in
Figure 38. The solid-block portion of each bar indicates the number of launches during
the calendar year for which vehicle performance was entirely normal, in so far as could
be determined. The clear white parts forming the tops of most bars show the number
of launches that were either failures or flights where the launch vehicle experienced
•some sort of anomalous behavior. Every launch with an entry in the response-mode
column in Table 43 falls in this category. Such behavior did not necessarily prevent the
attainment of some, or even all, mission objectives.
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Figure 38. Delta Launch Summary
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