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General Electric GE90  
User currently offlineAFa340-300E From France, joined May 1999, 2084 posts, RR: 26
Posted (13 years 9 months 2 weeks 1 day 8 hours ago) and read 1998 times:

Hello,

I found some figures on boeing.com. Here they are. The matter is that:
I don't know which ones are the -B1, -B2, -B3, ... if they are equal (renamed) of other versions

And for all of them if they are still under study/to be launched ever.

Model Thrust MTW (Max Taxi Weight) 777-200 777-300
==========================================
GE90-B3/-B4 74,500lb 537,000lbs -
GE90-B5 76,400lb 537,0007lbs -
GE90-B1 84,100lb 634,000lbs -
GE90-B4 84,700lb 634,000lbs -
GE90-92B 90,500lb - 662,000lbs
GE90-98B 98,000lb - 662,000lbs
==========================================
Scope and introduction, D6-58329, July 1998, www.boeing.com

"GE is developing the GE90-100B for the Boeing 777, with the engine derated in service to 98,000 pounds thrust. Also, GE will offer airlines an upgrade kit which can take all GE90 models to the 100,000 pound thrust configuration." GEAE

Does it mean the GE90-100B was (is?) to be both available with 100,000lb and 98,000lb max thrust?


Click for large version
Click here for full size photo!

Photo © Pierre Lacombe



Thank you,

Best regards,
Alain Mengus


10 replies: All unread, jump to last
 
User currently offlineTEDSKI From , joined Dec 1969, posts, RR:
Reply 1, posted (13 years 9 months 2 weeks 1 day 6 hours ago) and read 1733 times:

I read in a book I purchased titled GIANT JETLINERS, that the fan blades on the GE90 are made from composites vs. titanium that are on the P&W 4084 and Rolls Royce Trent 800 series.

User currently offlineCstarU From , joined Dec 1969, posts, RR:
Reply 2, posted (13 years 9 months 2 weeks 23 hours ago) and read 1707 times:

Actually it's made of both. The blades are mainly composite except that the edges are titanium.

Also, -110B for the longer range 777-200 and -115B for the longer range 777-300.


User currently offlineQantas737 From Australia, joined Jul 2000, 738 posts, RR: 4
Reply 3, posted (13 years 9 months 2 weeks 23 hours ago) and read 1707 times:

I'm still amazed at how huge the 777's engines are!

User currently offlineCstarU From , joined Dec 1969, posts, RR:
Reply 4, posted (13 years 9 months 2 weeks 23 hours ago) and read 1705 times:

Its circumference is about the size of a 737.

User currently offlineQantas737 From Australia, joined Jul 2000, 738 posts, RR: 4
Reply 5, posted (13 years 9 months 2 weeks 23 hours ago) and read 1705 times:

I wouldn't disagree with you there by looking at the size of the man next to it you would probably be right.

User currently offlineTEDSKI From , joined Dec 1969, posts, RR:
Reply 6, posted (13 years 9 months 2 weeks 15 hours ago) and read 1692 times:

Don't you agree that titanium is more durable than composites? Could this be the reason for some of the problems that the GE90 had earlier?

User currently offlineNavion From United States of America, joined May 1999, 1010 posts, RR: 1
Reply 7, posted (13 years 9 months 2 weeks 13 hours ago) and read 1679 times:

The short answer to your question is no. There was no problem with the GE90 that had anything to do with the composites. As a matter of fact, the large fan on the GE90 is unusually durable. By the way, I am a Pratt & Whitney fan so this opinion is as unbiased as I can get.

User currently offlineTEDSKI From , joined Dec 1969, posts, RR:
Reply 8, posted (13 years 9 months 2 weeks 4 hours ago) and read 1657 times:

If you are a Pratt & Whitney fan, what is your opinion on Boeing having the GE90 as the exclusive engine on the new 777X models and not having the P&W 4084 and RR Trent 800 engines as options.

User currently offlineAA61hvy From United States of America, joined Nov 1999, 13977 posts, RR: 57
Reply 9, posted (13 years 9 months 2 weeks 4 hours ago) and read 1653 times:

I thought Rolls would be the default and no GE and pratts. but thats a ways off and thing may happen. doesnt RR have more thrust then GE for the 777? maybe RR will come out with a bigger engine 


Go big or go home
User currently offlineNavion From United States of America, joined May 1999, 1010 posts, RR: 1
Reply 10, posted (13 years 9 months 2 weeks 4 hours ago) and read 1654 times:

The $500,000,000 Boeing received from GE for the exclusivity agreement makes business sense. Would I like to see the P&W Eagle on the nacelle of a PW4110? Absolutely!!! I have no doubt however the GE engine will meet spec and be a fine engine. It is important to remember that both RR and PW would be designing basically new engines. Their philosophies would be the same for the big engines and their smaller brothers, but the parts, specs, etc are all new. Look at some of the trouble my PW boys had ironing the bugs out of the 4098. It says it is a 4000 PW, but it is different in quite a few spots. It's funny, there seems to be tons of exclusivity these days, i.e. the 737NG's, 777X's, A343, A345, A346, 717, etc. And let's not even begin to consider the regional jets!!!! Holy cow!! It would be nice to be GE there!! Their CF34 series has all of the Bombardier RJ's, Embraers new RJ170 & RJ190's, Fairchilds 728 & 928's etc.

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