EUROCONTROL in cooperation with partners, Swedavia, LFV, Avinor, Indra and Thales Air and Ground Systems, has completed a validation exercise in SESAR W2 PJ02-04 under the Horizon 2020 programme. The exercise assessed and documented the feasibility and operational benefits of advanced curved departure procedures in the Terminal Area, using modern Performance Based Navigation (PBN) aircraft functions.Advanced curved departure procedures allow the aircraft to make an early turn (as soon as the aircraft crosses the departure end of the runway), which enhances runway throughput and flight efficiency. The curved departure route is coded in the aircraft’s database using the ARINC 424 "Radius-to-Fix (RF)" path terminator, which makes the aircraft behavior very reliable with extremely predictable ground tracks. By design, the planned turn radius and groundspeed allow control over the aircraft bank angle (limiting the bank angle at low altitudes).The procedures were designed using Stockholm Arlanda (ESSA) as a reference airport. The procedures were implemented in a range of different EASA Level D aircraft flight simulators operated by Lufthansa Aviation Training, to test different aircraft behaviors in a wide range of environmental conditions. The aircraft types used were A220, A319, A330, B737, B777 and E190. The flown tracks were recorded using digital data extraction from the simulators. In addition, video recordings were made from the aircraft avionics displays and pilot feedback was collected through questionnaires. The new advanced departure procedures were designed for maximum aircraft efficiency without being restricted to current existing design limitations in ICAO PANS-OPS for the use of RF functionality in departure procedures. The new advanced procedures were compared with the existing procedure at the reference airport (ESSA) as well as with a reference procedure using RF functionality based on current ICAO PANS-OPS design criteria.The collected data and pilot feedback demonstrated that the procedures are safe and feasible from a flyability point of view. The procedures are expected to provide potential fuel savings in the order of at least 30 kg for a typical intra-European flight, when compared to similar procedures using the current ICAO PANS-OPS design criteria. Increased exposure to flight crews by additional flight simulator evaluations as well as live flight trials are planned as next steps to implement the procedures in the real world.
Advanced PBN Departure Procedures for Flight Operational Efficiency
2023-10-01
3215941 byte
Conference paper
Electronic Resource
English
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