Introduction of EGNOS operations: the perspective of an Air Navigation Service Provider

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Introduction of EGNOS operations: the perspective of an Air Navigation Service Provider

METIS WorkshopMETIS WorkshopBenefits of EGNOS in Civil AviationBenefits of EGNOS in Civil Aviation

Istanbul 18 November 2009Istanbul 18 November 2009

Technical Department – Satellite Systems UnitTechnical Department – Satellite Systems UnitRenato Perago ([email protected])Renato Perago ([email protected])

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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.

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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

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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.

15%

30%

25%

30%

NPA

VFR

ILS CAT I

ILS CAT II/III

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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).

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ILS CAT I, OCH = 500 ft (m.a.

gradient 2.5%)

Three initial segments (two

straight-in) joining at RZ007

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• 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 !

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– 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)

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• 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

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Thanks for your attention

METIS project

www.metis-project.eu

Introduction of EGNOS operations: the perspective of an Air Navigation Service Provider

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