Airbus AlbatrossONE achieves proof-of-concept on a small scale @ YouTube

https://youtu.be/R9SRn5n7enQ 

Horizon 2020 project led by University of Pisa will lead the way for the sustainable improvement of future airplanes | Science|Business

https://sciencebusiness.net/network-updates/horizon-2020-project-led-university-pisa-will-lead-way-sustainable-improvement 

Boeing: Commercial Market Outlook

http://www.boeing.com/commercial/market/commercial-market-outlook/#/long-term