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Enhancing Virginia System Study Facilities & Equipment for Safe Instrument Approaches

Explore the importance of Instrument Approach Procedures for safe landings in adverse weather conditions and the role of GPS technology, radar systems, and approach minimums. Learn about airport safety records and how to optimize communication and weather reporting for improved efficiency.

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Enhancing Virginia System Study Facilities & Equipment for Safe Instrument Approaches

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  1. Virginia System Study Facilities & Equipment / NAVAIDs presented by: Delta Airport Consultants, Inc. March 4, 2009

  2. A Mile Of Runway ….

  3. What is an Instrument Approach Procedure? • Safe, efficient transition from up there to down here • Adverse weather accessibility runway

  4. Vocabulary: Types of IAPs

  5. Safety Record • Radar vs. Non-Radar • Accident risk without terminal radar … 3.1 times higher than with terminal approach radar • Precision vs. Nonprecision • Accident risk of non-precision approaches … 5.2 times higher than precision approaches … • Circle-to-Land

  6. GPS: Disruptive Technology! • A good great, wonderful thing! • A paradigm shift • Like the internet has been to travel

  7. GPS: Types of Approaches WAAS BARO IFR approved GPS

  8. The Role of Minimums • Comprised of: • Aircraft Category • Ceiling minimum • Visibility minimum • Why is lower better?

  9. Visibility Minimum • Visibility is the Governing Number! • Type of Procedure • Airfield Facilities • Approach Lights • Runway Visual Range vs. Prevailing Visibility

  10. Ceiling Minimum 14.9 mi2 9.9 mi2 2.1 mi2

  11. Surveys & Obstacles • Aeronautical Surveys • Accuracy Codes • Notification Process (7460) • Zoning Protection

  12. Beyond Type & Minimums

  13. Weather Systems • Needed: LOCAL Weather • Remote Altimeter Setting Source? Penalty! • Types of Systems • ASOS or AWOS III (Part 91 and Part 135) • AWOS A (Part 91) • Additional AWOS Sensors • NADIN

  14. Communication Systems • Direct • Remote Transmitter Receivers • Ground Communication Outlets • Phone / Void Time • Signs can help!

  15. Virginia System Study

  16. Study Elements • Inventory / GIS Development • System View • Airport-Specific Recommendations • Airport IQ Integration • Review of Future Developments • Implementation Plan

  17. What We Found • Only 11 LPV approaches in the system (excluding DCA & IAD) • 9 of the ILS approaches are non-standard • 5 of the 8 relievers require circle-to-land • 17 airports with altimeter adjustments

  18. System Goals

  19. How this Applies to Your Airport • Inventory What You Have • Set Goals • Make Small Adjustments • Plan for Big Improvements

  20. What Can You Do Today? • Know Your Procedures • Minimize Accuracy Code Adjustments • Commission Aeronautical Surveys • Address Close-In Obstructions • Request Improvements • Eliminate Circle-to-Land • Eliminate Non-Standard Minimums • Optimize Communications • Optimize Weather Reporting

  21. What We Didn’t Talk About • Airport Infrastructure • AC 150/5300-13, guidance in chapters • AC 150/5300-13, guidance in appendix • FAR Part 77

  22. Put your head in the clouds!

  23. Questions? Charles D. Lamb, P.E. clamb@deltaairport.com Courtney A. Beamon, P.E. cbeamon@deltaairport.com

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