|Quoting Faro (Thread starter):|
Beyond GTF, open rotors and contra-rotating stages, what innovations in materials are presently being R&D'ed by turbine engine manufacturers?
In addition to better coatings, they're always playing with the airfoils...3D airfoils are just starting to become the norm and I would suspect they'll keep tweaking that for some time to come.
Blisks are partly manufacturing, partly material, but promise significant weight savings...I'm not sure if they're in the commercial world yet but they're in military engines now.
The easy material advances seem to be behind us...if they can ever get ceramics to play nice, that will be a huge leap though.