Quote: The open rotor concepts, one of which was revealed recently by CFM partner Snecma, include pusher, counter-rotating designs very similar to the General Electric GE36 unducted fan (UDF) study of the 1980s, as well as puller-type designs.
Of more interest to me personally, are some of the quoted time-frames for the introduction of new-technology engines for A320 and 737 replacements:
Quote: However the company cautions that the more advanced concepts are still years away from fruition. Any open rotor design would not be ready for service until "very late in the second decade at the earliest," says CFM executive vice president Bill Clapper.
There's also some interesting information about the LEAP56 initiative.
Time flies like an arrow. Fruit flies like a banana!
SBN580 From United States of America, joined Mar 2005, 401 posts, RR: 3
Reply 1, posted (8 years 6 months 3 weeks 3 days 14 hours ago) and read 6862 times:
So there is the possiblity then of reviving the pusher prop-jet concept? I would assume these would have to be rear mounted engines. Wing mounted pusher prop would require quite a bit wing and pylon mount redesign I would think.
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Poitin From , joined Dec 1969, posts, RR:
Reply 2, posted (8 years 6 months 3 weeks 3 days 13 hours ago) and read 6853 times:
I wonder if they have a fix for the noise these types of configurations made in past attempts. Still if they can make it quiet enough the technology makes a lot of sense with oil at $60 USD per barrel.