The conceptual design of the Flettner Freighter has generated considerable interest from both companies and policy makers. The European Council for Maritime Applied R&D is mentioning the FF4500 in their vision on the future in their position paper, which is scheduled for publication in April 2017. The FF4500 design by C-Job Naval Architects has been developed in close cooperation with Switijnk Shipping as part of the EU Interreg SAIL project (“Ecoliner”-project). This design has evolved into the current FF8500. Read more here about this project.