FANS-1/A and ATN Data Link: An Avionics Perspective - PowerPoint PPT Presentation

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FANS-1/A and ATN Data Link: An Avionics Perspective

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  1. FANS-1/A and ATN Data Link:An Avionics Perspective Bob Kerr bob.kerr@honeywell.com

  2. Agenda • Aviation Data Link Users • Today’s ATC Data Link: FANS-1/A • The Next Step: ATN • System Accommodations • Lessons Learned • Conclusion ATN 2000 - London - Sept. 2000

  3. Potential Aviation Data Link Users ATN 2000 - London - Sept. 2000

  4. FANS 1/A Data Link - Overview • Augments other ATM functions, e.g. RNP • ATC Communications using existing ACARS data link infrastructure • Automatic Dependent Surveillance • ATC Data Link - (pilot  controller communications) • Aircraft Equipped (current or available soon) • Boeing 717, 747-400, 757, 767, 717, MD-90, MD-10, MD-11 • Airbus A320 family, A330, A340 • Planned for Classic retrofit, Biz Jets, military transports, ... • Regions • Oceanic and Remote Airspace • Benefits • Crew workload (replaces routine HF communications) • Dynamic Re-routing • User-preferred Trajectory (available soon) ATN 2000 - London - Sept. 2000

  5. Equipment Requirements - FANS-1/A D/L MFD HF Radio A429 A-724B ACARS MU Satcom A429 FMS A-618,A-622 MCDUData LinkKey Analog VHF Radio ATN 2000 - London - Sept. 2000

  6. Protocol Update Data Level 3 A-750VHF Data Radio VDL Mode 2 A-429 Equipment Requirements - ATN MFD CHI Upgrade HF Radio A429 A-758 CMU ATN Router & Applications Satcom A429 FMS ATN Applications MCDU ATN 2000 - London - Sept. 2000

  7. Mode 2 VHF Radio Mode A VHF Radio 2nd DSP Modem VDR Growth Increased Functionality Today’s VHF RadioMode 0 • 25 kHz/8.33 kHz • FM Immunity • 2400 bps ACARS • MSK Modulation • D8PSK Modulation • Spectrum Mask • 31.5 kbps data link • Internal Modem • ARINC 429 Buss to CMU/ATSU <2000 2000 2001 ATN 2000 - London - Sept. 2000

  8. ATN Compliant CMU VDL Mode 2 CMU (ARINC 758) CMU Growth Increased Functionality Today’s ACARS MU or ATSU • ATN Baseline 2 • Applications • Dual Operation • Enhanced Security • (authentication and • encryption) • Network Management • ACARS Messaging • Support for FANS-1 ATC Messages • ARINC 623 ATC Apps (PDC, OCX, ATIS, etc) • Uses MCDU or Proprietary CDU • ATN Protocols • ATN Baseline 1 Apps (CM, ADS, CPDLC) • Data Link CDU • VDL Mode 2 AOA • ARINC 758 or 724B Today’s Systems 2001 2002 2004 - 2007 ATN 2000 - London - Sept. 2000

  9. CPDLC Compliant Flight Management Computer FMC Data Link Growth Increased Functionality Today’s Flight Management Computer • ATN Baseline 2 Support Clearance requests Clearance uplinks • ATN Baseline 1 Support Auto-load route uplink ADS data transmission • ACARS Apps (AOC) • FANS 1/A Apps • ARINC 622 2005 - 2007 Today’s Systems ATN 2000 - London - Sept. 2000

  10. CPDLC Compliant Integrated Avionics Computer Integrated Avionics Data Link Growth Increased Functionality Today’s Integrated Avionics Computere.g. AIMS, EPIC • ATN Protocols • ATN Applications (CM, ADS, CPDLC) • VDL Mode 2 AOA • ACARS Apps (AOC) • FANS 1/A Apps • ARINC 622 2005 - 2007 Today’s Systems ATN 2000 - London - Sept. 2000

  11. AT ALCOA CLB TO & MAINTFL310 2119Z FROM KZAK CTL OPEN * UNABLE STDBY* < OTHER DCDU WILCO* MCDU MFD Crew Interface ATN 2000 - London - Sept. 2000

  12. Integration Challenges ATN 2000 - London - Sept. 2000

  13. System Accommodations • FANS-1/A and ATN Services will co-exist into the future • Different communications infrastructure • Different message definitions • but some mapping is possible • Operational and Service differences must be minimized • Accommodation possible on aircraft, ground, or both • Possibility of reduced benefits regionally • Under analysis in RTCA SC-189/EuroCAE WG-51 ATN 2000 - London - Sept. 2000

  14. Lessons Learned (1) • Programmatic • Tight configuration management for successful interoperability • Close cooperation between the participating ATC Service Providers is required • Technology introduction quicker than modifications to operational procedures • Operational benefits not as early as planned ATN 2000 - London - Sept. 2000

  15. Lessons Learned (2) • Human Factors • Pilot interface must be carefully designed • Adequate crew training is expensive but mandatory • Technical • Compatibility of air and ground navigation data base • Significant operational benefits accrue from tight interface with Flight Management System • ‘Auto-load’ of Route Clearances, etc. • High integrity and robust data link infrastructure required to support ATC data link safety requirements ATN 2000 - London - Sept. 2000

  16. Conclusions • FANS-1/A ATC Data Link suitable for oceanic and remote geographic regions into the future • ATN ATC Data Link is NOT an immediate replacement for FANS-1/A • Supports different airspace needs • Supports different user mission needs • Successful ATC Data Link requires tight integration between Communication system and other avionics • CHI : ‘Pilot friendly interface’ • FMC : CPDLC integration with the ‘navigator’ ATN 2000 - London - Sept. 2000

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