Sorry Rj111, I should have noted the link for the fuel burn data as it's always good to provide a link to back up ones notation(s).
Document Categories | Human and Environmental Issues | Safety Regulation
I hope the previously noted data clears up and misunderstanding with regards to fuel burn in the climb stage.
Yeah i saw these earlier and was surprised as it's inconsistent with what i've heard.
Though to counter some of the discrepancies it's worth noting that the GE90-94 is much heavier and larger than the T895. This should matter more on the light A-model 777s though.
In addition the figures for the A330 are for a more powerful version of the Trent vs the GE (I CBA to check the Pratts). If you match the rated outputs, the GE and RR at least, are comparable...
http://www.caa.co.uk/docs/702/2RR022_01102004.pdf
http://www.caa.co.uk/docs/702/4GE081_01102004.pdf
RR must be doing something right though as they're the dominant provider on the A330 (by far). And i believe they just snuck the biggest share on the 772ER/772A/773A.
RJ
