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Streamlining Space Launch Range Safety (2000) / Chapter Skim
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Appendix E: Safety Modeling and Analysis
Pages 53-56

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From page 53...
... If operational experience is available, component reliabilities may be adjusted based on observed failure rates. The adjustment process uses conventional filtering theory for estimating the confidence level for operational and estimated reliability but also includes a degree of subjectivity and technical judgment.
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From page 54...
... Both blast and toxic risk evaluations are performed well before each launch using statistical wind conditions, and they are repeated on launch day using measured winds. Impact limit lines.
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From page 55...
... The other shows the vehicle's cross-track position relative to destruct lines. Methods Specific to the Eastern Range On launch day, the measured wind profile is compared with the previously developed maximum-wind constraints.
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Key Terms

  • nominal trajectory
  • destruct lines
  • safety metrics
  • failure modes
  • vehicle failure

  • safety display
  • position relative
  • launch customer
  • wind conditions
  • measured winds

  • blast overpressure
  • risk analysis
  • cause injuries
  • red time
  • impact limit

  • defined using
  • using statistical
  • launch day
  • instantaneous impact
  • failure rates

  • risk profiles
  • amber time
  • current position
  • statistical wind
  • sensitivity analyses

  • flight termination
  • aerodynamic effects
  • fault tree
  • safety personnel
  • component reliabilities


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