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Enhancing Aviation Safety Through Performance-Based Navigation Benefits and Challenges

Explore the benefits of Performance-Based Navigation, including reduced obstacle evaluation areas and challenges such as operator authorization and training. Learn from implementing over 100 instrument approach procedures in the U.S.

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Enhancing Aviation Safety Through Performance-Based Navigation Benefits and Challenges

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  1. The Benefits andChallenges of Implementing Performance Based Navigation (PBN) Instrument Flight Procedures Presented to: IFIS 2008 Bradley W. Rush By: Manager, Quality Oversight and Technical Advisory Staff National Flight Procedures Office, FAA Date: June 24, 2008

  2. Presentation of benefits and challenges of PBN (RNP AR) and lessons learned of implementing over 100 instrument approach procedures in the United States Introduction

  3. Overview • Benefits • Reduced Obstacle Evaluation Area (OEA) • No secondary areas • Missed approach segment OEA • Radius-to-Fix leg types • Challenges • Operator authorization and training • Air traffic control procedures and training • RNP criteria application • Procedure benefit • Flight inspection technique

  4. Benefits Reduced OEA

  5. Benefits Reduced OEA INTERMEDIATE (RNP 1.00) FINAL (RNP 0.30) 2xRNP 1.00 2.00 NM 2x RNP 0.30 0.60 NM 2x RNP 0.30 0.60 NM 2.00 NM 2xRNP 1.00

  6. Benefits Reduced OEA FAF LTP VOR FINAL RNP 0.30 FINAL

  7. Benefits No secondary areas PLAN VIEW SECONDARY CROSS SECTION 2xRNP 2xRNP

  8. Benefits No secondary areas PLAN VIEW CROSS SECTION 2xRNP 2xRNP

  9. Benefits • Missed Approach OEA • RNP Standard Missed • No secondary areas

  10. Benefits • Missed Approach OEA • RNP Standard Missed • Benefit over ground-based missed approach VOR MISSED RNP MISSED

  11. Benefits • Missed Approach OEA • RNP less than 1.00 • No secondary areas 0 NM 0.6 NM 1.3 NM 1.9 NM 3.2 NM

  12. Benefits • Missed Approach OEA (TF application) • RNP Less than 1.00 – RNAV (RNP) Y RWY 31, Hailey, ID NUCIV SEVTE HISPA LOCIR OLUYA

  13. Benefits • Radius-to-Fix (RF) path terminators • Provides a consistently repeatable ground track and smooth transition to next segment

  14. Benefits • Missed Approach OEA (RF application) • RNP less than 1.00 – RNAV (RNP) Z RWY 26, Rifle, CO SIYOP RW26 PUVOY TEROE WADAK

  15. Benefits • RF application in approach segments • RNAV (RNP) Z RWY 13R, Palm Springs, CA

  16. Challenges • Operator authorization and training http://www.airweb.faa.gov/Regulatory_and_Guidance_Library/rgAdvisoryCircular.nsf/0/821ACA6A248D6AEA862570ED00536340?OpenDocument

  17. Challenges • Air Traffic Control procedures and training • “Direct” clearances and vectoring involving RF leg types • Adherence to published speed restrictions

  18. Challenges • Air Traffic Control procedures and training • “Direct” clearances and vectoring involving RF leg types • Adherence to published speed restrictions

  19. Challenges • RNP criteria application http://www.faa.gov/about/office%5Forg/headquarters%5Foffices/avs/offices/afs/afs400/afs420/policies%5Fguidance/orders/media/8260.52.pdf

  20. Challenges • RNP criteria application • Application of VEB http://www.faa.gov/about/office_org/headquarters_offices/avs/offices/afs/afs400/afs420/media/RNP%20SAAAR%20v2.0%20Spreadsheet.xls

  21. Challenges • RNP criteria application • RF leg type connections to new and exisiting fixes

  22. Challenges • RNP criteria application • Obtaining Average Cold Temperature (ACT)

  23. Challenges • RNP criteria application • Achieving benefit • Operator certification • ATC integration • RNP levels • ARINC leg types • Missed approach climb gradients

  24. Challenges • Flight inspection technique • ILS vs. RNP GPA 3.00° BELOW PATH 2.00° FAF RNP VEB 21.70:1 (2.64°) CROSS OVER TCH ASBL 3.1 NM 6 NM LTP

  25. Summary • Benefits • Reduced Obstacle Evaluation Area (OEA) • No secondary areas • Missed approach segment OEA • Radius-to-Fix Leg • Challenges • Operator authorization and training • Air traffic control procedures and training • RNP criteria application • Procedure benefit • Flight inspection technique

  26. Questions ?

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