eATM Portal

Solution PJ.14-W2-81 — Long-term alternative Position, Navigation and Timing (A-PNT)

This key R&D activity aims at developing A-PNT systems capable to provide better performances in comparison to the short-term solution (based on DME-DME) and support PBN/RNP operations in case of a GNSS degradation or outage. Long term A-PNT airborne solution is expected to support: RNP 1 for the SID or STAR developed upon RNP 1 navigation specification, the airways defined with RNP 0.3 or RNP 1 constraints, and preferably RNP-APCH operations down to LNAV/VNAV minima supposing appropriate ground infrastructure. This also address the standalone mid-term aircraft technological enhancement (researched in Wave 1) that supports RNP-based Operations in the TMA e.g. RNP1 SIDs and STARs (mid-term A-PNT).

SESAR 2020 Wave 2
Need for coordination
Related to
Date V1 Gate
Date V2 Gate
Date V3 Gate
Deployment Start Date
Benefits Start Date (IOC)
Full Benefit Date (FOC)


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