ECHO, the SESAR project co-funded by the EU designed to enable safe, efficient and scalable operations above conventional flight levels, has just launched its second phase with the official Kick-off Meeting of ECHO2 taking place at EUROCONTROL’s Brussels HQ on 29 September attended by the 23 ECHO partners led by EUROCONTROL, and the SESAR 3 Joint Undertaking (S3JU). ECHO – the European Concept of Higher airspace Operations –delivered successfully in its first phase a Higher Airspace Operations (HAO) Concept of Operations. ECHO2 will now build on what this achievement to propose validated solutions that pave the way towards the operational integration of HAO into ATM in three directions: (....)