mlsrar
Posts: 1384
Joined: Thu Mar 09, 2000 7:41 am

GP7000 Questions

Thu Oct 02, 2003 3:34 am

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
 
manzoori
Posts: 1459
Joined: Sun Sep 22, 2002 7:08 am

RE: GP7000 Questions

Thu Oct 02, 2003 6:52 am

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
 
gigneil
Posts: 14133
Joined: Fri Nov 08, 2002 10:25 am

RE: Since When LCD Screens In A340-300 Cockpit?

Fri Oct 03, 2003 4:01 am

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
 
mlsrar
Posts: 1384
Joined: Thu Mar 09, 2000 7:41 am

RE: GP7000 Questions

Fri Oct 03, 2003 10:04 pm

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
 
darkblue
Posts: 227
Joined: Thu Sep 11, 2003 10:27 pm

RE: GP7000 Questions

Sat Oct 04, 2003 2:51 am

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]
 
gigneil
Posts: 14133
Joined: Fri Nov 08, 2002 10:25 am

RE: GP7000 Questions

Sat Oct 04, 2003 4:17 am

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

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

N
 
BR715-A1-30
Posts: 6525
Joined: Thu May 30, 2002 9:30 am

RE: GP7000 Questions

Sun Oct 05, 2003 10:30 pm

Is this engine supposed to be bigger than the GE90 in terms of Diameter?
Puhdiddle
 
darkblue
Posts: 227
Joined: Thu Sep 11, 2003 10:27 pm

RE: GP7000 Questions

Mon Oct 06, 2003 7:47 am

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


 
gigneil
Posts: 14133
Joined: Fri Nov 08, 2002 10:25 am

RE: GP7000 Questions

Tue Oct 07, 2003 1:53 am

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

N

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