Geared turbofans

Date:         13 Mar 98 03:35:37 
From:         "Campfire" <dcampbell@navnet.net>
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This is my first posting to this apparently nearly deceased newsgroup(is
ANYONE out there? :)
My curiosity was piqued when I read about PW developing a new geared
turbofan. PW put out a news release stating it was the last great
improvement to be made with current technology(paraphrasing here, so I hope
I got it right). Does anyone know what advantages PW expect out of this?
I'm assuming they'll be running a bigger fan and will need to slow it down
from the core speed, and that the bigger size is because this engine would
be for the proposed superjumbo jets. Anyone have any info? Comments? What
about some of their competitor's comments that this is old technology with
no inherent advantages?

Dave