You Need To See At Least One Of These 10 Things To Land From An Instrument Approach
如果您接受了仪器培训，您可能知道您需要三件事才能降落在仪器方法上（FAR 91.175）：
Two Easy Rules-of-Thumb For Calculating a 3-Degree Glide Slope
您是否曾经发现自己在ILS方法上追逐滑行口？ VFR最终方法的VASI或PAPI怎么样？
Do You Need To Meet Stepdowns When You Go Visual On An Approach?
当您脱离云层时，步骤down仍然适用吗？
