list of aviation users: Airbus not yet:http://www.tctmagazine.com/3D-printing-news/airbus-group-expands-munich-site-aerospace-3d-printing/ EOS http://www.tctmagazine.com/3D-printing-news/additive-industries-metalfab1-system-completes-first-phase-beta-sales/ Additive industries MTU Aero (for Airbus) is using EOS http://www.tctmagazine.com/3D-printing-news/mtu-aero-engines-uses-3d-printing-for-series-comp/