1 Pat Benson GPS AIR INTEGRATIONS Digital Aeronautical Data for Navy GPS Aircraft Integrations September 2004

2 Navy Letter Serial PMW/A-156-7/023 Title: Safety and Accuracy of NGA’s DAFIF Database –Digital Data Importance to Naval Navigation –NAVAIR Expectations of digital data

3 Navigation RNAV (Approaches, SIDS, STARS, Routes) Digital Data GPS as Primary Means JPALS RNP Navigation Capabilities Dependence GPS Navigation is Dependant on Digital Data

4 DAFIF Use Past TAXITAKE OFF INITIAL CLIMB DEPARTURE OCEANIC / EN ROUTETERMINALNON-PRECISION APPROACH CAT ICAT IICAT III PRECISION APPROACH & LANDING VFR

5 DAFIF Use Future TAXITAKE OFF INITIAL CLIMB DEPARTURE OCEANIC / EN ROUTE RNP - 4 TERMINAL RNP - 1 NON-PRECISION APPROACH RNP CAT ICAT IICAT III PRECISION APPROACH & LANDING MH-53E P-3, E-2C, F-18, EA-6B, etc… F-18

6 Navy DAFIF Quality Requirements TAXITAKE OFF INITIAL CLIMB DEPARTURE OCEANIC / EN ROUTE RNP - 4 TERMINAL RNP - 1 NON-PRECISION APPROACH RNP CAT ICAT IICAT III PRECISION APPROACH & LANDING Essential 1X10 -5 RNAV SIDS RNAV GPS Approaches Critical 1X10 -8 RNAV GPS Precision Approaches

7 NIMA Digitizes and Formats RNAV PROCEDURE (Translated from Paper or re-typed) TERP AGENCY RNAV PROCEDURE CREATION (Paper Only) FAA FLIGHT RNAV Procedure CHECK (Fat Fingered data from Paper) User DAFIF CD-ROM or Web Paper NGA Translation Process Introduces Errors No NGA Feedback process from TERPs Agency

8 What does NAVAIR Expect from NGA? Recognition of the Issue Lead the effort in establishing the new process –FAA & DoD coordination

9 Provide methods or tools for TERPing agencies to review DAFIF What does NAVAIR Expect from NGA?

10 Implement automated format & logic checks on procedures Provide methods or tools for TERPing agencies to review DAFIF What does NAVAIR Expect from NGA?

11 Implement automated format & logic checks on procedures Provide methods or tools for TERPing agencies to review DAFIF Provide TERPing agencies with input data format What does NAVAIR Expect from NGA?

12 Proposed Solution TERP AGENCY RNAV PROCEDURE CREATION NIMA Formats RNAV PROCEDURE FAA FLIGHT RNAV Procedure CHECK DAFIF CD-ROM User RNAV Procedure Format & Logic Check TERP AGENCY RNAV PROCEDURE REVIEW Digital Transfer, Flight Check, Automated Checks, TERP review

13 Summary Safety and Accuracy of NGA’s DAFIF Database –Digital Data Importance to Naval Navigation –NAVAIR Expectations of digital data Essential Data 1X10-5 –RNAV GPS Approaches & RNAV SIDS Critical Data 1X10-8 –GPS Precision Approaches

Typo - should be 4.0

16 Digital Procedure Process Today TERP AGENCY RNAV PROCEDURE CREATION (Paper Only) FAA FLIGHT RNAV Procedure CHECK (Fat Fingered data from Paper) NIMA Digitizes and Formats RNAV PROCEDURE (Translated from Paper or re-typed) User DAFIF CD-ROM or Web Paper NGA Translation Process Introduces Errors No NGA Feedback process for TERPs Agency

17 Random Sample of 128 Approaches over 2 years FY02 & 03 – 27 bad approaches due to SOF errors –Errors confirmed by NAVFIG Analysis –Errors were translation errors from paper to digital Issue: SOF Errors in GPS Approach Procedures