This according to a caption on a picture in this otherwise general information piece about engine efficiency allowing for long range flights... Admittedly not the most authoritative source one would like to have...
The GE “ADVENT” engine is a military project and the engine’s path to production looks complicated… tied up with a USAF project where RR and P&W appear to be ahead of GE.. you can read more about he projects history here:
Still they have been using the USAF bucks to test CMCs and so how long will it be until they use this knowledge in the commercial side of the business? Maybe not long…
This video and article is a bit dated from October 2015 but worth another review... in the video they seem to imply (at 5:31) that CMCs LPT blades may be used in the GE9x... I have seen no other confirmation that this is the case, but it would explain why EBM only got 2 sections of the GE9x LPT...
Of course there would still be other parts that could be made via EBM that don't require the superior light weight and heat limits of CMCs and I doubt CMCs would ever be used in the medical field, but no other parts or uses of EBM hold any where near the potential that producing LPT blades for Jet Engines holds... at least not near term...
I am going to Boston and hope to get some insight into where EBM stands vs CMCs... this is the one "fly in the ointment" that keeps me from fully committing to Arcam... I wish it would go away...