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FAA’s Transition Strategy for Navigation and Landing Services

The FAA's Transition Strategy, submitted in August 2002, addresses the evolving landscape of navigation and landing services, particularly in light of post-9/11 challenges. It aims to enhance operational readiness and optimize navigation services, while considering both General Aviation and Air Carrier needs. The strategy encompasses GPS and its augmentations like WAAS and LAAS, ensuring accuracy and reliability. Engaging stakeholders, it collectively outlines a path forward to mitigate vulnerabilities in the aviation infrastructure, aligning with the 2003 Federal Radionavigation Plan for improved service delivery.

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FAA’s Transition Strategy for Navigation and Landing Services

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  1. FAA’s Transition Strategy for Navigation and Landing Services 2003 FRP User Conference Dave Olsen Navigation System Engineer Architecture and Systems Engineering

  2. RadionavigationTask Force • Volpe Vulnerability Assessment of the Transportation Infrastructure Relying on the Global Positioning System • Published in August 2001 • DOT Task Force formed to address mitigation measures • FAA tasked to develop Navigation and Landing Transition Strategy - submitted to DOT in August 2002 (faa.gov/asd - Library)

  3. Transition Strategy Objectives • Consider current and future navigation services defined in the 2001 FRP • Consider state of the aviation industry since September 11th • Create service-based approach to Navaid reductions • Optimize rather than minimize services • Emphasis on operational readiness, dispatch capability and the servicing of demand • Continue to recognize differing aircraft equipage (GA and Air Carrier)

  4. Transition StrategyParticipants • FAA • NAS Architecture (ASD) • Regulation and Certification (AFS & AIR) • Air Traffic Services (AT & AF) • Focused briefings were presented to: • Industry groups and trade associations • DOT (Pos/Nav Executive Committee) • DoD (Policy Board on Federal Aviation)

  5. Stakeholder Comments • Industry • Airlines and GA • MITRE/CAASD analysis and support • Analyzed proposed minimum operating network (MON) • Sponsored Industry Day – May 7, 2002 • Comments considered in the Transition Strategy

  6. Satellite NavigationServices GPS and Augmentations • Global Positioning System (GPS) • Augmented for Accuracy, Availability, Continuity, Coverage, and Integrity • Wide Area Augmentation System (WAAS) • Local Area Augmentation System (LAAS) • WAAS procedures with vertical guidance begin in 2003 • LNAV/VNAV • LPV

  7. 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 VOR Minimum Operating Network DME TACAN NDB Long-Range Systems – Alaska and Coastal ILS – CAT I and Localizer-Only Retain on at least one runway where required for backup ILS – CAT II/III Retained on current runways WAAS LAAS CAT I 6 airports + options for 0 to 40 per year LAAS CAT II/III R&D Required Projected Navaid Services Transition

  8. 0 1 2 > 3 Current VOR Coverage 1005 VOR/VORTAC/VOR-DME 5,000’ AGL (75nmi radius)

  9. 0 1 2 > 3 471 VOR/VORTAC/VOR-DME5,000’ AGL (75nmi radius) Projected MON VOR Coverage

  10. VOR Minimum Operating Network Long-Range NDB’s ILS DME-DME INS FMS ILS Procedures Only Operational Contingency Backup Capability Redundant Capability Threat Mitigation GPS Interference Event Operations Disruption GPS Backup Equipage

  11. Architecture & Loran-C • Ongoing research • FAA & Coast Guard • Will Loran support: • Aviation nonprecision approach? • Maritime harbor entrance and approach operations? • Time and frequency users?

  12. Summary • FAA Has Proposed a Transition Strategy that considers: • GPS vulnerability • Backup requirements • Strategy is being incorporated into the 2003 Federal Radionavigation Plan • Opportunity for continued discussions with aviation community The more we keep, the greater the cost…

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