https://www.aviationpros.com/aircraft-maintenance-technology/engines-parts/press-release/55125224/vortex-control-technologies-sunexpress-further-reduces-its-carbon-footprint-with-finlets
SunExpress Further Reduces Its Carbon Footprint with Finlets | Aviation Pros
VCT Finlets are a patented array of small "fins" strategically placed on the aircraft's aft fuselage.
carbon footprintsunexpressreducesaviationpros