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PRELIMINARY RESULTS OF FLIGHT TEST PROGRAM TO DEVELOP A CURVED PATH NAVIGATOR

PRELIMINARY RESULTS OF FLIGHT TEST PROGRAM TO DEVELOP A CURVED PATH NAVIGATOR. And set of new curved path approaches to landing using GPS/LAAS and WAAS The University of Oklahoma. Curved Path Minimum Instrumentation Suite. horizontal and vertical deviation indicators bearing ring

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PRELIMINARY RESULTS OF FLIGHT TEST PROGRAM TO DEVELOP A CURVED PATH NAVIGATOR

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  1. PRELIMINARY RESULTS OF FLIGHT TEST PROGRAM TO DEVELOP A CURVED PATH NAVIGATOR And set of new curved path approaches to landing using GPS/LAAS and WAAS The University of Oklahoma

  2. Curved PathMinimum Instrumentation Suite • horizontal and vertical deviation indicators • bearing ring • ideal heading indicator • roll out heading indicator • distance to the active waypoint • distance to the missed approach point • turn anticipation indicator

  3. Curved Pathapproach definition • FPAP • LTP/FTP • Threshold crossing height • Approach angle • Center of turn • Far endpoint of straight section beyond turn • Multiple turns can be added using the same format as above.

  4. Toshiba Libretto Laptop Collins MMR GNLU-930 (LAAS/WAAS PVT source) Sandel SN3308 EHSI Display Condor Engineering CEI710 ARINC 429 Card ARINC 429 bus ARINC 429 bus PVT Input Display Data Curved Path Navigator Software Functional Diagram of Curved Path Navigator

  5. The Oklahoma University LAAS/WAAS PVT Source • Collins GNLU-930 MMR • LAAS/WAAS • 1-2 m NSE with OU LAAS system

  6. Curved Path Navigator Processing • Toshiba Libretto Laptop • Condor Engineering ARINC 429 card • OU Curved Path Navigator Software

  7. Curved Path Navigator Software Approach status Position ENU velocity/position Horz and Vert dev WPT/MAP info LAAS/ WAAS status

  8. Navigator Software Processing • Read and unpack ARINC PVT information from MMR • Compare present position to ideal Path • Compute Horizontal and Vertical FTE • Predict future Horizontal and Vertical FTE @ 5 Hz rate • Pack output data in ARINC words • Transmit to display

  9. The SOONER Curved Path Navigator Display Compass Indicator Distance to Waypoint Vert Dev Indicator Mode Select Desired Course Indicator Heading Bug Horz Dev Indicator SANDEL SN3308

  10. Curved Path Navigator Test Aircraft Category B: Rockwell Turbo Commander AC-680

  11. Curved Path Navigator 180 degree approach results

  12. Curved Path Navigator 180 degree approach results • 13 curved approaches • 180 degree turn • 2 nm radius

  13. Curved Path Navigator 180 degree approach results Subject Pilot B TSE Subject Pilot A TSE

  14. Curve Path Navigator 180 Degree Results compared to CRM metric

  15. Curved Path Navigator 90 degree approach results

  16. Curved Path Navigator 90 degree approach results • 10 curved approaches • 90 degree turn • 2 nm radius

  17. Curved Path Navigator 90 degree approach results • TSE 2 and 6 sigma isoprobability contors • 10 curved approaches

  18. Curve Path Navigator 90 Degree Results compared to CRM metric

  19. Curved PathPreliminary Observations • Curved path navigation IS possible without a flight director • The minimum instrumentation suite is sufficient • No needle following! • Curved path approaches can be made to conform to the CRM ILS metric

  20. Curved Path Navigator Acknowledgements • Organizations involved with MLS curved path approaches • Stanford University WAAS curved path

  21. Thanks to our Partners in the Curved Path Navigator Effort • Flight Standards OKC (AFS-420 TERPS) • FAA Technical Center in Atlantic City • Rockwell Collins • Condor Engineering • Sandel Avionics • OU Electric Vehicle Research Institute:Andy, Blevins, Chad, Chuck, Peter, Wally and Wen

  22. The End

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