 Within the programme, a passive ice protection system will be tested on an engine inlet and nacelle mockup in an icing wind tunnel at in Austria by early 2020, using capillary forces generated by vaporisation in a metallic porous "wick" in an evaporator to provide heat transfer with no moving parts to a condenser, like in space applications, reducing weight and energy requirements.Within Clean Sky 2, the EU funds two high-speed rotorcraft