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ESSP and the Highland and Islands Airports Limited (HIAL) sign an EGNOS working agreement

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ESSP and the Highland and Islands Airports Limited (HIAL) sign an EGNOS working agreement.

ESSP and HIAL (Highland and Islands Airports Limited) have just signed an EGNOS Working Agreement (EWA) as a key step for the implementation of EGNOS-based approach procedures (LPV procedures) at 11 Scottish airports.

This agreement enables the publication of the first EGNOS-based approach procedures at Scottish airports.

The signature was sealed last September 13th by ESSP President Dirk Werquin and HIAL‘s Managing Director, Inglis Lyon.

From now on, HIAL can publish EGNOS-based procedures that will improve safety, accessibility and efficiency to pilots and operators at their local airports. EGNOS provides a cost effective alternative to ILS CAT I, offering similar performance, and it is free!


“The use of EGNOS for LPV approach procedures is already a reality in Europe” Mr. Werquin said, “and we, as the EGNOS Service provider, are proud that HIAL airports will start to benefit from the EGNOS service, as is being done in other European countries with EWA signed”.

In the same framework, HIAL has been part of the EU project ACCEPTA  - ACCceleration of the EGNOS adopTion in the Aviation sector. Jointly with HIAL, Scottish operator Loganair is also part of this project, getting equipped with EGNOS enabled receivers to be able to fly the EGNOS-based procedures.

The HIAL airports involved in the project, and the first ones foreseen to publish these kind of procedures, are Barra, Benbecula y Campbeltown.


HIAL is a public corporation wholly owned by the Scottish Ministers. The company operates and manages 11 Airports at Barra, Benbecula, Campbeltown, Dundee, Islay, Inverness, Kirkwall, Stornoway, Sumburgh, Tiree and Wick.

ESSP SAS: founded in 2009 by the Air navigation services providers from France (DGAC/DSNA), Germany (DFS), Italy (ENAV)), Portugal (NAV-P), Spain (Aena), Switzerland (skyguide) and UK (NATS) to act as service Provider for the EGNOS system, the European Geostationary Navigation Overlay Service.

EGNOS: the European Geostationary Navigation Overlay Service, is a Satellite-Based Augmentation System (SBAS) that improves the accuracy and provides integrity to the GPS Signal over most of Europe.The EC owns and manages the EGNOS system. ESA is the EGNOS design agent under a delegation agreement with the EC.It is Europe's first venture into satellite navigation and a major stepping-stone towards Galileo, Europe's own global satellite navigation system for the future.It is Europe's first venture into satellite navigation and a major stepping-stone towards Galileo, Europe's own global satellite navigation system for the future.



LPV is a non-precision approach. It stands for Localizer Performance with Vertical Guidance and typically takes you down to 200-250 ft decision height.

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