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Development and evaluation of an RNP AR approach procedure under tight airspace constraints
CEAS Aeronautical Journal Pub Date : 2022-05-07 , DOI: 10.1007/s13272-022-00576-4
Richard M. Unkelbach 1 , Thomas Dautermann 1
Affiliation  

Required navigation performance authorization required (RNP AR) approach (APCH) procedures are a special form of approaches with vertical guidance (APVs) where stricter navigation system requirements in terms of accuracy, integrity and functionalities allow smaller obstacle clearance areas and the use of curved legs in all approach segments. That leads to very flexible approach design possibilities compared to other instrument approach procedures. This paper guides through the development and initial evaluation of an RNP AR approach on runway 15L at Isa Air Base in Bahrain. The establishment of instrument approaches on this runway has been complicated so far because the final approach would have led straight through the controlled traffic region (CTR) of an adjacent air base. We show that entering the CTR, which ends less than 3.3 NM before the runway threshold, can be avoided with an RNP AR approach by employing a curved leg in the final approach segment and the highest possible navigation accuracy of RNP 0.1—two unique features of RNP AR APCH. We then fly and test the developed procedure in an Airbus A320 full-flight simulator under the wind and weather conditions considered by the procedure design rules. The results show that the actual navigation and flight technical performance met the required one under all conditions without the bank angle and effective glide path limits being exceeded. An initial flight test with a Boeing B737-800 showed that the approach can also be flown with sufficient accuracy in practice.



中文翻译:

在严格的空域限制下开发和评估 RNP AR 进近程序

所需导航性能授权 (RNP AR) 进近 (APCH) 程序是一种特殊形式的垂直引导进近 (APV)在所有方法段。与其他仪表进近程序相比,这导致了非常灵活的进近设计可能性。本文指导在巴林伊萨空军基地 15L 跑道上 RNP AR 进近的开发和初步评估。到目前为止,在这条跑道上建立仪表进近一直很复杂,因为最后进近将直接穿过相邻空军基地的管制交通区 (CTR)。我们展示了进入 CTR,其结束小于 3。在跑道入口前 3 海里,可以通过 RNP AR 进近来避免,方法是在最后进近段采用弯曲的航段和 RNP 0.1 的最高可能导航精度——RNP AR APCH 的两个独特特征。然后,我们在程序设计规则考虑的风和天气条件下,在空中客车 A320 全飞行模拟器中飞行和测试开发的程序。结果表明,在不超过坡度和有效下滑道限制的情况下,实际导航和飞行技术性能在所有条件下均满足要求。使用波音 B737-800 进行的初步飞行测试表明,这种方法在实践中也可以以足够的精度飞行。RNP AR 进近可以避免这种情况,方法是在最后进近航段采用弯曲的航段,并尽可能提高 RNP 0.1 的导航精度——RNP AR APCH 的两个独特功能。然后,我们在程序设计规则考虑的风和天气条件下,在空中客车 A320 全飞行模拟器中飞行和测试开发的程序。结果表明,在不超过坡度和有效下滑道限制的情况下,实际导航和飞行技术性能在所有条件下均满足要求。使用波音 B737-800 进行的初步飞行测试表明,这种方法在实践中也可以以足够的精度飞行。RNP AR 进近可以避免这种情况,方法是在最后进近航段采用弯曲的航段,并尽可能提高 RNP 0.1 的导航精度——RNP AR APCH 的两个独特功能。然后,我们在程序设计规则考虑的风和天气条件下,在空中客车 A320 全飞行模拟器中飞行和测试开发的程序。结果表明,在不超过坡度和有效下滑道限制的情况下,实际导航和飞行技术性能在所有条件下均满足要求。使用波音 B737-800 进行的初步飞行测试表明,这种方法在实践中也可以以足够的精度飞行。然后,我们在程序设计规则考虑的风和天气条件下,在空中客车 A320 全飞行模拟器中飞行和测试开发的程序。结果表明,在不超过坡度和有效下滑道限制的情况下,实际导航和飞行技术性能在所有条件下均满足要求。使用波音 B737-800 进行的初步飞行测试表明,这种方法在实践中也可以以足够的精度飞行。然后,我们在程序设计规则考虑的风和天气条件下,在空中客车 A320 全飞行模拟器中飞行和测试开发的程序。结果表明,在不超过坡度和有效下滑道限制的情况下,实际导航和飞行技术性能在所有条件下均满足要求。使用波音 B737-800 进行的初步飞行测试表明,这种方法在实践中也可以以足够的精度飞行。

更新日期:2022-05-09
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