A more sustainable world

Keen to reduce the environmental footprint of aviation, skeyes collaborates closely with airlines and airports to reduce the impact of operations on the environment. A pioneer in the area of green landings, the company is also at the forefront of renewable energy. skeyes assists with the siting of new wind turbines by ensuring that they are developed harmoniously with air traffic.

1. Green landings

Continuous Descent Operation (CDO)


A CDO (Continuous Descent Operation) is an operation in which the aircraft descends continuously, employing minimum engine thrust to the greatest possible extent, depending on the characteristics of the flight and the air traffic situation. This enables a reduction in noise pollution, fuel consumption and greenhouse gas emissions.

atterissage 71.9%

of landings followed the green landing procedure at Brussels, Liège and Charleroi airports in 2018

Breakdown of arrivals by airport where the CDO procedure is applied

Brussels Airport

Liège Airport

Charleroi Airport

Number of CDOs in absolute terms relative to total IFR arrivals

2. Environmental course for skeyes air traffic controllers


To raise awareness of climate change among air traffic controllers, skeyes launched a “climate and environment” course for its operations personnel in 2018. Developed by an air traffic controller, the module covers climate issues and the impact of aviation over a period of a few hours. The course also provides an opportunity for an exchange of best practices in the area.

3. Collaborative environmental management at Brussels Airport

In 2018, skeyes and Brussels Airport Company signed a collaboration agreement with Brussels Airlines, TUI fly and DHL Express for the carrying out of joint initiatives aimed at further reducing the environmental impact of aviation activities. EUROCONTROL and ACI Europe, a professional association of airport operators, support this Collaborative Environmental Management (CEM) initiative at Brussels Airport.

The CEM concept aims to devise joint concrete solutions to environmental issues on the sites and environs of airports, by gathering the main operational stakeholders around the table: airport operators, airline companies and air traffic control. CEM at Brussels Airport covers, among other things, the sharing of experiences, new operational concepts as well as optimisation of green landings and de-icing operations.


4. Wind turbines

skeyes collaborates with the wind turbine sector and offers its expertise to developers to ensure that the turbines are installed without interfering with air traffic and, particularly, air safety.

travaux 1,552 

wind turbines active in Belgium

check 351

new applications for permission to install wind turbines submitted to skeyes in 2018

eolienne 244

applications have already been approved. The other applications are in the process of being examined (84), were refused for safety reasons (8), or were withdrawn by the applicant (15)

The most advanced information website for residents in Europe

mouse www.batc.be

skeyes and Brussels Airport Company have developed a new version of the information website BATC.be (Brussels Airport Traffic Control). Since the end of 2018, residents can use the website to view real-time relevant information relating to the use of runways, weather observations and forecasts, radar flight tracks, noise measurements and numerous statistics.

By offering all of these new handy services, BATC.be is both a source of reliable information and an educational tool. The information website for residents has, moreover, become a model in Europe, providing the largest amount of real-time operational information to the general public.

With its new BATC.be website, skeyes is demonstrating its commitment to transparency. The company is conscious of its social responsibilities and wants to provide all information necessary for a better understanding of its activities. Runway selection is a complex operation that relies on many factors, with air safety being an absolute priority for skeyes.