AFa340-300E
Topic Author
Posts: 2115
Joined: Tue May 18, 1999 3:49 am

General Electric GE90

Sun Jul 16, 2000 8:05 am

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?


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Photo © Pierre Lacombe



Thank you,

Best regards,
Alain Mengus
 
Guest

RE: General Electric GE90

Sun Jul 16, 2000 9:31 am

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.
 
Guest

RE: General Electric GE90

Sun Jul 16, 2000 4:28 pm

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.
 
Qantas737
Posts: 714
Joined: Thu Jul 13, 2000 8:34 am

RE: General Electric GE90

Sun Jul 16, 2000 4:36 pm

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

RE: General Electric GE90

Sun Jul 16, 2000 4:41 pm

Its circumference is about the size of a 737.
 
Qantas737
Posts: 714
Joined: Thu Jul 13, 2000 8:34 am

RE: General Electric GE90

Sun Jul 16, 2000 4:50 pm

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

RE: General Electric GE90

Mon Jul 17, 2000 12:19 am

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?
 
Navion
Posts: 1053
Joined: Tue May 18, 1999 1:52 am

Tedski

Mon Jul 17, 2000 2:41 am

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.
 
Guest

Navion

Mon Jul 17, 2000 11:39 am

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.
 
aa61hvy
Posts: 13021
Joined: Fri Nov 05, 1999 9:21 am

RE: Navion

Mon Jul 17, 2000 11:47 am

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
 
Navion
Posts: 1053
Joined: Tue May 18, 1999 1:52 am

Tedski

Mon Jul 17, 2000 11:52 am

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.