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Wide Area Augmentation System (WAAS)

Wide Area Augmentation System (WAAS) Dan Hanlon WAAS Program Manager WAAS Commissioned! For IFR Aviation Use – July 10, 2003 WAAS Capabilities FAA Makes WAAS Available For Non IFR Aviation Use In August 2000 Signal Available At Surface For All Users Initial Operating Capability (IOC)

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Wide Area Augmentation System (WAAS)

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  1. Wide Area Augmentation System(WAAS) Dan Hanlon WAAS Program Manager

  2. WAAS Commissioned!For IFR Aviation Use – July 10, 2003

  3. WAAS Capabilities • FAA Makes WAAS Available For Non IFR Aviation Use In August 2000 • Signal Available At Surface For All Users • Initial Operating Capability (IOC) • FAA Commissions System For IFR Use On July 10, 2003 • 100% Coverage CONUS & Alaska From 100,000 Ft. To Surface • Horizontal Accuracy 1.5M • Vertical Accuracy 3M • Better Than 99.99% Availability Of System • 95% Availability In CONUS Of Precision Approach • 350’ Minimum • WAAS Specific Approaches (LPV) Published • Sep 2003 - 250’ Minimums

  4. WAAS Components

  5. Development Activities • Full Operating Capability (FOC) Development Underway • System Enhancements: • More Efficient Monitor Algorithms • 13 Additional WRSs To Improve Availability And Coverage • 4 Alaska • 5 Mexico • 4 Canada • Provide Two GEO Satellites In View To All Users • Enhancing The Terrestrial Communications • Enhanced O&M Efficiency • Equipment Upgrade Using COTS When Feasible

  6. IOC (Initial Operating Capability) Incremental Improvements Ground System Development Ends System Improvements Will Be Brought Online Incrementally End State Performance Will Result In Greater Availability Of Precision Approach (LPV - 250 Foot Minimums) 99% CONUS 95% In Most of Alaska Dual GEO Coverage Over All CONUS and Alaska GPS Modernization L5 Frequency (Block IIF & GPS III) WAAS 200’ Minimums Better Interference Mitigation 2003 2003 - 2008 WAAS Schedule 2007 2013

  7. WAAS CapabilitiesFor Aviation

  8. NAS Benefits • Aids in Transition to More Advanced Navigation Capability • WAAS Supports RNP • Provides Very High Quality Navigation Signal for Lower RNP Values (Better than .11) • Improves National Airspace System Efficiency and Capacity • Complex Procedures Available to All Aircraft • Advanced Arrival and Departure Procedures • Promotes Airspace Redesign • Guidance Through Position Velocity Time (PVT)/FMS RNAV • Cost Savings By Decommissioning of Redundant Ground Based Navigation Aids

  9. General Aviation Benefits • Safety • Provides Vertical Guidance At All Runway Ends • Improves Situational Awareness • Improved Access for General Aviation to All Airports and Improved Navigational Capabilities • Low Cost/High Capability Avionics • Provides State of the Art Performance at a Modest Cost • Minimum Enroute Altitude (MEA) at or Near Minimum Obstruction Clearance Altitude (MOCA) • More Airspace Available in Enroute Environment • Departure and Arrival Procedures Can Be Developed Based on Efficiency Not Placement of Ground Based NAVAIDS

  10. Vertical Flight Benefits • Enables Simultaneous Non-Interfering ( SNI) Operations • Provides Separate Flight Paths And Landing Areas For Rotorcraft And Fixed Wing Aircraft • Eliminating Competition For Limited Approach And Landing Resources • Precision Guided Approach Capability In Areas With No Navigation Aids • Air Ambulance • Urban Canyons • Positive Navigation Capability At All Operating Altitudes • Air Route Width Reduction • Reduced Edge Of Adjacent Airspace Separation • Reduced IFR Separation Between Aircraft

  11. LNAV/VNAV 350’ LPV 250’ ILS 200’ 3o Business & Regional Aviation Benefits • Significant Increase in Number of Available Airports with Precision Approach Capabilities • Backup Approach Capability for Airports with Out of Service ILS • Minimum Enroute Altitude (MEA) at or Near Minimum Obstruction Clearance Altitude (MOCA) • More Airspace Available in Enroute Environment • Departure and Arrival Procedures Can Be Developed Based on Efficiency Not Placement of Ground Based NAVAIDS • High Capability Avionics for Relatively Low Cost • Provides Many of the Same Capabilities as High End Air Carrier Aircraft • Allows Easier Access to Lower RNP • Low RNP (Better Than .11) Provides Flexibility in Development of New Routes and Procedures

  12. Airport Benefits • Precision Approach Capability At All Runway Ends • When Combined with ADS/B, Provides Separation at Airports Without Radar Coverage • Surface Navigation • Very Accurate Moving Map Availability Provides Pilot Situational Awareness • Enhanced Noise Abatement By Use of Advanced Procedures

  13. WAAS Avionics UPS/AT Receiver • Certified Receivers • UPS/AT • Chelton Systems • Free Flight Systems • Capstone (Alaska) • Major Program Goal To Improve Safety and Efficiency By Installing WAAS Avionics • SFAR Approved (Mar 03) • Continue to Equip Aircraft with WAAS Avionics Chelton Receiver Capstone Installation

  14. How to Fly a WAAS Approach

  15. Toggle to Activate Receiver

  16. Destination Airport: Frederick, MD (KFDK) Build Flight Plan

  17. Specify Approach Destination Airport: Frederick, MD (KFDK)

  18. Execute to Activate Approach

  19. Vector to Final (VTF)

  20. On Course/On Glidepath With WAAS

  21. Arrival

  22. Summary • WAAS Benefits All Classes Of Aviation Users • WAAS Has Been Available VFR For Almost 4 Years • WAAS Commissioned For IFR Use On July 3, 2003 • Signal Enhances Navigation In All Phases Of Flight • WAAS Enables All Users to Participate In RNP • Signal Is Usable From Surface To 100,000 Feet • Provides Vertical Guidance To All Runway Ends* • Aviation Receivers Available Today • WAAS Is Being Improved Incrementally To Bring Added Capability Online As Soon As It Is Ready • Demonstrates FAA Commitment To Improving Services For All Aviation Users * Requires Instrument Flight Procedure To Be Developed For Each Runway End

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