As part of the SESAR Joint Undertaking's HERON project, a successful demonstration led by ENAV, Leonardo and Deep Blue has tested the integration of ADS-C/EPP data into ground-based air traffic control systems. The trial was hosted at the ENAV area control centre in Rome and ran throughout February in shadow mode with real traffic, offering valuable insights into the operational benefits of this innovative technology.

ADS-C, or automatic dependent surveillance-contract, with extended projected profile (EPP), allows aircraft to automatically transmit key trajectory-based data such as the top of descent (ToD), future waypoints, speed schedule and meteorological information to ground systems. By enabling ground controllers to access the aircraft’s view of its intended trajectory, the integration of this data significantly improves situational awareness and predictability, particularly during the initial descent phase. The integration of this data marks an important step towards modernising air traffic management.

Key highlights of the demonstration include:

• Enhanced descent predictability: by using real-time EPP and ToD data, the trial focused on improving trajectory accuracy during the initial descent phase. The improved predictability helps reduce unnecessary manoeuvres, with positive implications for both safety and the environment.
• Operational efficiency and sustainability: the demonstration evaluated enhancements to ATC procedures, targeting more efficient flight profiles. These improvements support efforts to reduce fuel burn and CO₂ emissions, contributing to more sustainable air travel.
• Advanced platform integration: the ADS-C common service used in the trial was developed by Airtel ATN in line with the latest specifications. It was deployed with the support of Airtel ATN and EUROCONTROL and connected to the ground system via a SWIM-based client developed by Leonardo. This platform integration was instrumental in ensuring the seamless operation of the demonstration within ENAV’s systems.

Conducted with equipped and logged revenue flights in real-world conditions, the trial has demonstrated the tangible potential of ADS-C/EPP integration to improve airspace management, environmental performance and operational safety.

The HERON project is part of the broader SESAR JU initiative to modernise and green European aviation. Led by Airbus, HERON brings together 26 partners from 11 countries, with support from six airlines, eight air navigation service providers and five airports. The project is carrying out a series of high-impact developments and demonstrations to reduce noise, fuel consumption, flight delays and CO₂ emissions.

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