Trajectory-Based Operations (TBO) are intended to improve Air Traffic Management (ATM) by enabling earlier planning, more consistent trajectory prediction, and reduced tactical conflict management. During the transition towards advanced Automatic Dependent Surveillance–Contract (ADSC) and Controller–Pilot Data Link Communications (CPDLC) services, aircraft will provide different levels of downlinked intent and Flight Management System (FMS)-integrated trajectory update capability. This paper evaluates how this mixed datalink equipage affects a TBO concept for Amsterdam Area Control Centre (ACC) airspace. A strategic trajectory management model is developed for mixed inbound and outbound traffic between FL110 and FL260, combining fixed Flight Path Angle (FPA) descents with probabilistic Conflict Detection & Resolution (CD&R). Equipage-dependent uncertainty is represented through descent angle, target descent speed, and wind, while traffic density and fleet composition are varied in a Monte Carlo experiment. The results show that increasing equipage capability reduces trajectory adjustments and residual losses of separation, with the clearest benefits in higher density scenarios. Flown track distance and modelled work also decrease as more advanced equipage becomes available, although work reductions are small and occur mainly outside the Amsterdam ACC conflict management volume. Expected Approach Time (EAT) adherence remains broadly comparable across equipage compositions. ... Read more

As climate change becomes more and more apparent, it is necessary to find sustainable methods for future aviation. The battery industry is rapidly developing, allowing for batteries with more power density which make more electric aviation possible. As the average aerobatic flight is only 30-40 minutes, it is the perfect category to test these new electric methods. By using this information, the following mission need and project statement can be formulated. ... Read more