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GP7000 Questions  
User currently offlineMlsrar From United States of America, joined Mar 2000, 1417 posts, RR: 8
Posted (11 years 2 months 2 weeks 6 days 19 hours ago) and read 1408 times:

I've tried to do some research on how GE/PW are joining forces to produce the GP7000, and integrating their respective technologies and components and I have yet to come up with answers to the following questions:

1) Which manufacturer is providing the majority of the engine?

2) Where will assembly take place? Given the core comes from GE, I'd assume in NC

3) What is so special about the low-spool from the PW core that is attractive to GE?

4) What does each manufacturer bring to the table that is the specialty from their technologies?


I mean, for the right price I’ll fight a lion. - Mike Tyson
8 replies: All unread, jump to last
 
User currently offlineManzoori From UK - England, joined Sep 2002, 1516 posts, RR: 33
Reply 1, posted (11 years 2 months 2 weeks 6 days 16 hours ago) and read 1385 times:

I can only answer one or two of these, and then from a source which you've probably already looked at (Enginealliance.com)

4)P&W = Fan, Low pressure Compressor and Low Pressure Turbine
GE = High Pressure Compressor, Combustor, High Pressure Turbine, FADEC, and I guess everything else.

What I think it really boils down to is that neither company had the funding necessary to each come up with their own engines. Thus they form an alliance, pool cash and resources and set about integrating their respective specialities into a single powerplant whilst at the same time trying desperately to keep their respective crown jewels separate from the other.

Happens all the time!

Rez  Big thumbs up



Flightlineimages DOT Com Photographer & Web Editor. RR Turbines Specialist
User currently offlineGigneil From United States of America, joined Nov 2002, 16347 posts, RR: 85
Reply 2, posted (11 years 2 months 2 weeks 5 days 19 hours ago) and read 1357 times:

P&W is also providing the accessory gearbox and some other items.

enginealliance.com has a mouseover that you can see exactly which parts are coming from which manufacturers.

The engine is basically a scaled and improved 3d-aero GE-90 core with PW4098, lpc, lpt, and a vastly redesigned front fan.

The entire engine will be 3D-aero.

N


User currently offlineMlsrar From United States of America, joined Mar 2000, 1417 posts, RR: 8
Reply 3, posted (11 years 2 months 2 weeks 5 days 1 hour ago) and read 1307 times:

Will the fan incorporate GE's "revolutionary" chevron-blades, or will it be a PW-Titanium style?


I mean, for the right price I’ll fight a lion. - Mike Tyson
User currently offlineDarkBlue From United States of America, joined Sep 2003, 233 posts, RR: 10
Reply 4, posted (11 years 2 months 2 weeks 4 days 20 hours ago) and read 1281 times:

GE does not make chevron blades. Perhaps you are thinking of chevron nozzles? The fan is part of the LP system, it will be made by PW.

DB

[Edited 2003-10-03 19:53:07]

User currently offlineGigneil From United States of America, joined Nov 2002, 16347 posts, RR: 85
Reply 5, posted (11 years 2 months 2 weeks 4 days 19 hours ago) and read 1270 times:

The fan will be titanium, wide chord, and 3D styled/swept.

It will be a PW part, not a GE part.

N


User currently offlineBR715-A1-30 From , joined Dec 1969, posts, RR:
Reply 6, posted (11 years 2 months 2 weeks 3 days 1 hour ago) and read 1230 times:

Is this engine supposed to be bigger than the GE90 in terms of Diameter?

User currently offlineDarkBlue From United States of America, joined Sep 2003, 233 posts, RR: 10
Reply 7, posted (11 years 2 months 2 weeks 2 days 15 hours ago) and read 1210 times:

The GP7000 has a fan diameter 116in. The GE90 is a bit bigger with the GE90-94B at 123in and the -115B at 128in. The GP7000 and GE90 have similar bypass ratios.

DB




User currently offlineGigneil From United States of America, joined Nov 2002, 16347 posts, RR: 85
Reply 8, posted (11 years 2 months 2 weeks 1 day 21 hours ago) and read 1190 times:

The GE90 has an amazing bypass ratio for a current-day engine - by far the highest of its competitors.

N


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