The project has been named B3, for the initials of the three partners:
- 1. Airline (Brussels Airlines)
- 2. Air Navigation Service Provider (Belgocontrol)
- 3. Airport Authority (The Brussels Airport Company)
Currently, the conventional descent is made in a stair-step approach. The continuous descent allows the plane to start its descent later and in a continuous way with minimal engine power, without levelling off in between, which provides for savings in fuel, less CO2 emissions and less noise.
In Belgium, which has a limited and complex air space, CDO can only be implemented below 3500 m and for a limited number of flights: Continuous Descent Operations can only take place when the air traffic situation (separation between aircraft) allows it. Nevertheless, the experiments showed fuel savings of 50 kg for an A320 and 100 kg for an A330, with CO2 emissions reduced respectively by 160 and 315 kg. For the entire Brussels Airlines operations, it means that yearly three medium-haul A320 flights can be operated with the fuel saved by CDO.
The noise reduction is 3 dB(A) for the A320 and 3 dB(A) for the A330.
The total cost of the project was 300,000 euros. They were paid at 50%, a private/public European partnership, and the other 50% equally divided between the B3 partners.
1. ‘Green’ CDO landings are even in the complex Belgian airspace possible and have a direct impact on the environment
2. Belgocontrol, Brussels Airlines and Brussels Airport have proven through the B3 project that they take up their responsibility in the aviation & environment discussion
The conference was concluded with a visit of the tower. Not the operational floor on the top, but a training room one floor lower.
See also pictures taken from the tower in the spotting section: viewtopic.php?f=21&t=47036
Copyright (text and pictures) A Orban, representing Luchtzak: