new egnos based operations in...
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New EGNOS based operations in Switzerland
Marc Troller
CNS expert group
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Instrument APCH Chart Dübendorf (1)
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Instrument APCH Chart Dübendorf (2)
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Implemented: 21 August 2014
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LSMD Track Monitoring
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radar data
on-board avionics
Final RF leg RF leg straight segment
radar data
on-board avionics
Final RF leg RF leg straight segment
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LP APCH Locarno
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Mandate from Swiss Air Force
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› Steep RNP APCH to RWY 26R for CAT H aircraft
› NAV SPEC: RNP 0.3, RF legs to be avoided
› LNAV and LPV minima
› Users:
Air Force EC635 and AS332
HEMS AW109 DaVinci
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Approach Chart - Minima
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Terrain at LNAV Minima
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Terrain at LP Minima
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NOTAM RNAV APCH Locarno
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› NOTAM only available for 5° elevation angle
› All helicopters are SBAS capable
› Terrain-dependent RAIM / EGNOS predictions required
› LNAV minima with EGNOS NOTAM?
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Swiss GNSS LFN (Low-Flight-Network)
Picture: REGA
Mandate from the Swiss Air Force and REGA
› Development of low-flight route network
› Goal is to allow helicopter flights
independent of weather conditions
› NAV SPEC: RNP 0.3
› Users:
Air Force EC635 and AS332
HEMS AW109 DaVinci
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GNSS LFN CH routes phase 1
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GNSS LFN Summary
› Navigation Specification: RNP 0.3
› Airspace: mainly E, C, D
› Aircraft Used: Helicopter with
CMA-5024 GPS/SBAS receivers
Chelton GPS/SBAS receivers
› Implemented: 25.06.2015 (operational trial phase)
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GNSS LFN Infrastructure Requirements
ICAO PBN manual, Part C, Chapter 7
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GNSS LFN Prediction NOTAM
› Helicopters are SBAS capable
› SBAS performance higher than GPS/RAIM performance
› Request to ESSP to provide RNP0.3 SBAS NOTAM proposals
› ESSP NOTAM system ready by 25.06.2015 greatly appreciated !!!