, Funding: Part of the research described in this paper has been carried out in the framework of AIRGREEN2 366

, Project, which gratefully received funding from the Clean Sky 2 Joint Undertaking, under the European's Union 367 Horizon 2020 research and innovation Program, Grant Agreement No

, Acknowledgments: The research leading to these results has received funding from the European 370

, Community's Seventh Framework Program (FP7/2007-2013) for the Clean Sky Joint Technology Initiative under 371 grant agreement CSJU-GAM-GRA-2008-001 and the European Community's Horizon 2020 -the Framework 372

, Program for Research and Innovation (2014-2020) for the Clean Sky Joint Technology Initiative under grant 373 agreement

, Special thanks goes to Sergio Ricci and Alessandro De Gaspari from Politecnico di Milano, Rosario Pecora from 375 University of Naples, Emre Ongut and Yves Lemmens from Siemens PLM, p.376

, Italian Aerospace Research Centre (CIRA) and Giovanni Carossa from Leonardo Company

. Conflicts-of-interest, The author declares no conflict of interest

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