The Twente demonstrations saw NLR’s research Cessna Citation II join a Lufthansa A319 and a TUI fly B737 Max 8 to evaluate under real visual conditions, using the Indra Navia GBAS ground station, the runway dual markings and dual precision approach path indicator (PAPI) needed for Second Runway Aiming Point (SRAP) and IGS (Increased Glide Slope)-to-SRAP approaches.
The trials, which will be evaluating visual aspects, flyability and gathering performance data, are part of the SESAR Very Large Demonstration (VLD1) DREAMS project, which aims to evaluate whether a series of new Enhanced Arrival Procedures (EAP) will bring benefits in terms of noise and optimisation of wake separation, as well as reduced flight time or runway occupancy time for certain runway configurations. The project gathers nine partners under coordination by Indra: two ANSPs (DFS, ENAV), two aircraft manufacturers (Airbus, Dassault), one aircraft system manufacturer (HONEYWELL), two research organisations (NLR, DLR), and EUROCONTROL. In addition, airspace users (Lufthansa, TUI Fly) are also participating under contractual arrangements.
Overall, DREAMS aims to increase operational efficiency, shorten flying times and lower emissions by bringing EAP supported by advanced GNSS navigation technologies closer to industrialisation.