Comments on IAP

1. 从一个由电子设备导航的航路上转到另一个航路上时, 最大允许转弯为120度. 这也包括Instrument approach的各个段, 从Feeder route到IAF,到IF,到FAF.
2. 如果在FAF从feeder route转到final approach的角度超过30度, 或者feeder router最低运行高度和FAF的最低允许高度之差超过300尺, 则不可从feeder route直接转入final approach, 必须做程序转弯. 以便对准航向, 降低高度.
3. 如果一个Instrument approach的final approach航向和跑道方向差30度以上(GPS近进为15度), 或者从FAF的最低允许高度到跑道头超过了400尺/海里的下降剃度, 则此Instrument approach不可作为straight-in approach, 只能作为circling approach.

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