The final meeting of the Clean Sky project UNIFIER19 - Community Friendly Miniliner - was held on September 5, 2022, in Ajdovščina, Slovenia.

The project exceeded the expected outcomes about the feasibility and preliminary design of a zero-emission 19-passenger airplane.

Pipistrel Vertical Solutions, Politecnico di Milano and Technical University Delft, with the additional help of University Carlos III Madrid, completed the design of an one-of-a-kind aircraft exploiting cryogenic hydrogen for its power generation system based on fuel cells, a pusher tail-cone propeller and distributed electric propulsion.