In 2011 – 2013 EANS, as a SHERPA consortium* member, participated in SHERPA project, which was initiated by the EC; the project was headed by the European Satellite Service Provider.
Together with ANSPs of Poland, Greece, Turkey, Bulgaria and other states, EANS has participated in developing GNSS** based Approach Procedures with Vertical Guidance*** (SBAS APV procedures) as well as in preparing PBN**** plan. Other stakeholders of Estonia also participated in SHERPA project: Estonian CAA, Tallinn Airport, and national flag carrier Estonian Air. The participation in the Project has brought EANS specialists the knowledge and skills required for designing procedures.
*SHERPA – Support ad-Hoc to Eastern Region with Pre-operational Actions on GNSS
**GNSS – Global Navigation Satellite System
***SBAS APV – Approach Procedures with Vertical Guidance
****PBN – Performance-based Navigation