Adaptive ECS Fuel burn Air mix % Maintaining air quality while reducing fuel burn Beverage and food service affect air quality OverallFuel savings 2% Less external air intake = Lower fuel consumption = Reduced environmental impact DRAG ACROSS This project has received funding from the Clean Sky 2 Joint Undertaking under the European Unions Horizon 2020 research and innovation programme under grant agreement No CS2-SYS-GAM-2014-2015-01