2.1 一般概念 ................................................................................................................................................7 2.1.1 定义 ................................................................................................................................................7 2.1.2 性能要求 ................................................................................................................................................8 2.1.3 功能要求 ................................................................................................................................................9 2.2 RNP 空中空间环境与实施 .............................................................................................................................11 2.2.1 无线电导航设备覆盖范围内的 RNP 航路 .............................................................................................11 2.2.2 无线电导航设备覆盖范围外的 RNP 航路 .............................................................................................11 2.2.3 采用 RNP 的 RNAV 非精密进近 .............................................................................................11 2.3 飞机导航系统 ................................................................................................................................12 2.3.1 航空器设备 ................................................................................................................................12 2.3.2 导航系统能力 ................................................................................................................................13 2.3.3 MEL 要求 ................................................................................................................................................19 2.4 RNP 操作 ..............................................................................................................................................22 2.4.1 基于无线电导航基础设施的 RNP-5（或 RNP-4） ........................................................................22 2.4.2 PRNAV .............................................................................................................................................26 2.4.3 远洋或偏远地区的 RNP-10 .............................................................................................................26