摘要: The report contains the Briefs of Accidents involving Rotorcraft occurring in 1968. There were 252accidents involving Rotorcraft out of a total of 4,968General Aviation accidents in 1968. The total accident rate is 40.84and the fa... 展开
原报告号 | PB191053 | 总页数 | 116 |
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报告类别/文献类型 | PB / NTIS科技报告 | ||
关键词 | civil aviation aviation accidents aviation accidents statistical analysis helicopters aviation accidentsmortality rates crash injuries air traffic commercial planes pilots statistical data |