Page 1STNApresentation of data-link activities DATA-LINK IMPLEMENTATION IN FRANCE Initial data-link services with ACARS - Departure Clearance, ATIS - CPDLC and ADS in Tahiti Future data-link services - Implementation Feasibility - System development - part of Link2000+

Page 2STNApresentation of data-link activities Departure Clearance and ATIS Departure clearance in use since 1993 –in Roissy CDG (93), Orly (95), and Lyon (95) Digital ATIS in use since 1994 –Orly (94) and Roissy CDG (98) ARINC 618 and 623 data-link with ACARS From trial basis to full operation –Eurocae ED78 methodology >> ED 85 (DCL) Interoperability, performance, safety requirement –Ground approval / Aircraft certification from data link to ATM safety

Page 3STNApresentation of data-link activities ADS/CPDLC in Tahiti VIVO system in Tahiti –CPDLC in use since February 96 –ADS in use since March 99 Interoperability –ARINC 622 protocols –Boeing FANS/1 and Airbus FANS/A –Eurocae WG53/RTCA Sc189 interoperability doc New communication means / new ATM –Dynamic routing (DARPS) –Separation standards reduction

Page 4STNApresentation of data-link activities Future services Feasibility study on future services –ACM (ATC Communication Management) Safety and capacity benefit related to sectorization service based on ATN CPDLC : safety and reliability –ACL (ATC Clearance) Strategic and non time critical, Initially as a backup of VHF voice service based on ATN CPDLC : safety and reliability –ATC microphone check Safety benefit

Page 5STNApresentation of data-link activities Future services Feasibility study on future services –CAP (Controller Access Parameters : IAS,Heading) Mode S Enhanced surveillance capability ADS/ATN depending on aircraft equippage –FLIPCY Flight Plan Consistency (FMS/FDPS) ADS projected profile or ACARS/Arinc 702 –DLIC (data-link initiation capability) enabling service flight plan association : safety issue

Page 6STNApresentation of data-link activities Technical and on line validation (beg ) –EOLIA (beg 2000) then PETAL/2 (2001) – specific flights with EOLIA, red label Aircraft (P2E, AAL) – Live connection to Reims center ( Reims ACC look-a-like) Operational evaluation –after civil military coordination HMI and RVSM ( ) –regular flights (AAL B767,others ?) Deployment : part of link implementation –depending on aircraft equipage –operational system and communication infrastructure end to end approval Impact on controller working methods Program phases

Page 7STNApresentation of data-link activities System development Datalink integration into CAUTRA architecture has started in 1998 –ODS-France data-link HMI –FDPS upgrade –Air ground data-link server : new component –development based on EOLIA and PRO-ATN Euro-AGDL project (Eurocontrol, DFS, NATS, STNA) –initial demonstration beg multiple aircraft simulator specific EOLIA flights

Page 8STNApresentation of data-link activities DL SERVER -DLIC -ACM - CIC -FLIPCY -CAP ES NETWORK architecture Flight Data Processing System (STPV) CAUTRA Environment Technical Supervisor Mode S

Page 9STNApresentation of data-link activities EOLIA/PRO-ATN EOLIA services : benefits for ATM –DLIC, ACM, CIC, FLIPCY Based on PRO-ATN –Compliant with CNS/ATM1 ICAO SARPS –Subnetwork VDL, Satellite Demonstration and Evaluation –Feasibility demonstration (98) + Le Bourget (99) –Pre-operational Evaluation (99/beg 2000) –Cessna Citation + A340 + Ground platforms

Page 10STNApresentation of data-link activities LINK2000+ Headlines Link services –DLIC, ACM, ACL, AMC, CAP, FLIPCY, DCL, ATIS, DSC European Implementation before 2007 –ATC Services and infrastructure with infrastructure support for AOC Geographical Area –European Core area to Start –Strong link to FAA Program Build 1/1A/2 Stakeholders commitment expected in 2000 –ATS Service providers, Eurocontrol –Airlines voluntary aircraft equipage : Link CBA

Page 11STNApresentation of data-link activities Conclusion From today To link : a big step ahead in Air Traffic Management –an encouraging experience from European projects (EOLIA, PETAL) –Evolution of working methods : controllers and pilots How to choose between voice and data-link ? Training –Safety in a very busy traffic environment has to be demonstrated –Aircraft equipage investment –Is there any other short medium term alternative ?