1. 1 Introduction of EGNOS operations: the perspective of an Air Navigation Service Provider METIS Workshop Benefits of EGNOS in Civil Aviation Istanbul 18 November 2009 Technical Department – Satellite Systems Unit Renato Perago (renato.perago@enav.it)

2. 2 METIS Workshop Benefits of EGNOS in Civil Aviation, Istanbul 18 November 2009 Single European Sky (SES) - Objectives to increase: safety, efficiency, capacity of ATM in Europe; to reduce fragmentation / complexity of airspace (FABs, FUA); to provide a framework for modernisation of systems (SESAR); to reduce the environmental impact of any operation. … widespread PBN operations key enablers of SES.

3. 3 METIS Workshop Benefits of EGNOS in Civil Aviation, Istanbul 18 November 2009 PBN Approaches – RNP APCH (+ Baro VNAV) first step of PBN implementation; operational benefits (flight time, pilot / controller workload, repeatability of the flight path); vertical Baro-guidance for equipped aircraft (some models of Airbus and Boeing); Baro VNAV flight procedures where cost-effective; RNP APCH subject to some operational restrictions (i.e. RAIM availability). RAIM FDE RAIM FD 37min 4min 15min

4. 4 METIS Workshop Benefits of EGNOS in Civil Aviation, Istanbul 18 November 2009 PBN Approaches – SBAS LPV (or SBAS APV) SBAS LPV (or APV) increased availability by SBAS (no RAIM); access to both greatest and regional airports; EGNOS LPV suitable for at least 70% of Italian RWYs (good average visibility in Central/Southern Italy); EGNOS LPV suitable at Perugia (LIRZ) airport.

5. 5 METIS Workshop Benefits of EGNOS in Civil Aviation, Istanbul 18 November 2009 Operational Scenario at Perugia regional and general aviation traffic; airspace constraints; mountainous terrain (also affecting m.a.); RWY 01 ILS CAT I; Procedural surveillance; IFR RWY 19 desirable (in case of south wind).

6. 6 METIS Workshop Benefits of EGNOS in Civil Aviation, Istanbul 18 November 2009 ILS CAT I, OCH = 500 ft (m.a. gradient 2.5%) Three initial segments (two straight-in) joining at RZ007

7. 7 METIS Workshop Benefits of EGNOS in Civil Aviation, Istanbul 18 November 2009 certification of airborne equipment; obligations of aircraft operators (manuals, crew training); radio navigation signals of sufficient performance (ESSP in the case of EGNOS); airspace design + aeronautical information publication (Service Providers); subject to regulation/approval by “EASA system” (including NSAs). Overall PBN Implementation steps in EU International Projects join different stakeholders !

8. 8 METIS Workshop Benefits of EGNOS in Civil Aviation, Istanbul 18 November 2009 –Service Providers shall carry out Safety Assessment of the intended modifications (SES Regulation); –Local constraints key factor; –High-level Safety Cases as inputs to Local Safety Assessment; –possible local degradation of signals (e.g. GPS interference) and mitigations (ICAO ANC/11, Recommendation 6/2). Risk Assessment and Mitigation (ESARR4)

9. 9 METIS Workshop Benefits of EGNOS in Civil Aviation, Istanbul 18 November 2009 Performance Based Navigation (PBN) one of the key enablers of SES; Aeronautical Information Management required for PBN; RNP APCH (+Baro) the first implementation step of PBN; SBAS LPV suitable for at least 70% of Italian runways end; Despite of the conservative concept (ILS-look-alike), LPV introduces the required level of automation with accurate flight path repeatability by means of EGNOS signal availability. Conclusion

10. 10 METIS Workshop Benefits of EGNOS in Civil Aviation, Istanbul 18 November 2009 Thanks for your attention METIS project www.metis-project.eu