posted on Jul, 10 2013 @ 05:55 AM
reply to post by Zaphod58
All sources I have read say it burns 25% less fuel than an unknown engine. Given the program was launched in 2007, I find it hard to believe it is 25%
better than the GE9X. The best engine around in 2007 was likely either the Trent 900, GP7200, or GE90 - of course no military aircraft use these. So
it could be 25% better than a CF6 for all we know. 25% better than GE90 makes it closer to 15% better than the GE9X. 25% better than a CF6 makes it
similar to the GE9X.
Also note that the pressure ratio of 70:1 refers to the overall pressure ratio of the engine, rather than the pressure ratio of the compressor. The
compressor has run but the overall engine hasn't. GE9X will have a compressor ratio of 27:1.
edit on 10/7/13 by C0bzz because: (no reason