astuteman
Posts: 6346
Joined: Mon Jan 24, 2005 7:50 pm

GEnx/Trent 1000 For A380?

Mon Jun 06, 2005 6:35 am

My understanding is that these engines (GEnx for certain), are being developed for thrusts up to 75 000 lb, and with the A350 "growing" all the time, it's likely that they will actually get built at this thrust, if not higher.

It seems to me that this places these engines squarely in the thrust range for the A380 - even the possible 590t-600t HGW version.

Others on the forum may help me on this one, but I would guess (and it is a guess) that GEnx/Trent 1000, with higher BPR, slower turning main fans (for Trent for certain) etc. etc would be 3% - 5% more efficient than even the relatively recent Trent 900/GP7200 engines currently on the A380.

Being 112" fans as opposed to 116" fans they will also be lighter, and have less drag on the wing.

How difficult would it be to certify these engines for the A380?
Would this be a sensible thing to do?
Would it be too costly?

If my guesses are anything like near the mark, these engines could increase the range of the A388 from c8000 miles to c8400-8500 miles - a considerable improvement.

Possibly an even greater benefit, though might be complete commonality with the A350 for fleet decisions (a benefit shared by the 787/747ADV)

On a lighter note, if the A388 could reach 8500 miles or so with these engines, it might open the way for the A388 HGW version to challenge the 772LR for the title of the world's longest range aircraft.
550 passengers and 9500 miles - all the plane you'll ever need.......

Seriously, though, would this engine certification be a sensible consideration for Airbus, or is it just pie-in-the-sky from my fertile imagination?
A
 
gigneil
Posts: 14133
Joined: Fri Nov 08, 2002 10:25 am

RE: GEnx/Trent 1000 For A380?

Mon Jun 06, 2005 6:40 am

112" fans vs. 116" in fans is a deficit, not an advantage.

The A380's fans are so large to give it additional noise cushion at stringent airports.

The Trent 900 and GP 7200 will be among the more efficient engines flying.

N
 
DfwRevolution
Posts: 8590
Joined: Sat Jan 09, 2010 7:31 pm

RE: GEnx/Trent 1000 For A380?

Mon Jun 06, 2005 6:44 am

Quoting Astuteman (Thread starter):
A388 HGW version to challenge the 772LR for the title of the world's longest range aircraft.

Probably not... the 777-200LR with zero auxillury fuel tanks installed should have a still air range around 8,600-8,800 nautical miles. With all optional tanks installed, the 772LR will have 9,420 nm of range with payload.

The GEnx is not radically more efficent than the A380 powerplants, which were only developed and certified in the last 5 years themselves. At least, not enough to extend the A380's range by 1,000 nautical miles.

Quoting Astuteman (Thread starter):
Seriously, though, would this engine certification be a sensible consideration for Airbus, or is it just pie-in-the-sky from my fertile imagination?

Pie in the sky... Airbus and engine manufactues have already invested heavily in the Trent 900 and GP7000. They need return from those projects.
 
A350
Posts: 1012
Joined: Tue Nov 30, 2004 6:40 am

RE: GEnx/Trent 1000 For A380?

Mon Jun 06, 2005 6:40 pm

I thought the same and I think it'll be an interesting variant delivering the latest technology, at least for those who are not interested in A388HGW/A389, but in 787s/A350s.

However, also the GP7000 and Trent 900 will be further developed for sure. Anyway, I'm sure we'll see improved engines on the A380 quite soon.

A350
 
yul332LX
Posts: 798
Joined: Sat Feb 07, 2004 5:15 am

RE: GEnx/Trent 1000 For A380?

Sat Jun 18, 2005 6:17 am

Engine Alliance Already Anticipating Retrofit GP7200


So fast is the pace of engine development today that the Engine Alliance is already anticipating the retrofit of new technology in the GP7200 in around five years’ time — and the engine isn’t even in service yet.

“I would absolutely expect the GP7200 (it will power the Airbus A380) to have a performance improvement around then” using technology from the GEnx engine being developed for entry into service on the Boeing 787 in 2008, says Engine Alliance president Bruce Hughes.

E volavo, volavo felice più in alto del sole, e ancora più su mentre il mondo pian piano spariva lontano laggiù ...
 
Airmansv
Posts: 11
Joined: Sun Apr 03, 2005 9:49 pm

RE: GEnx/Trent 1000 For A380?

Sun Jun 26, 2005 7:33 am

The GP7000 engine for the A380 is jointly made by Pratt & Whitney and GE. Technologies developed by both manufacturers as appropriate are incorporated and it benefits from the best from the two companies.
 
astuteman
Posts: 6346
Joined: Mon Jan 24, 2005 7:50 pm

RE: GEnx/Trent 1000 For A380?

Wed Jun 29, 2005 8:00 pm

YUL332LX

Many thanks for the link - v. informative.
A

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