freedom747
Topic Author
Posts: 104
Joined: Fri Aug 12, 2005 10:31 am

GE Vs. Rolls-Royce Engines?

Thu Nov 02, 2006 12:24 pm

Whose got the best product, and why?
Open forum and let the games begin.
 
worldtraveler
Posts: 3417
Joined: Tue Aug 05, 2003 6:18 am

RE: GE Vs. Rolls-Royce Engines?

Thu Nov 02, 2006 12:27 pm

how about we narrow it down and put some parameters..... like maybe on the 777ER and talk about fuel efficiency and maintenance costs?

and this topic might better be suited to the technical forum.
 
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Stitch
Posts: 24625
Joined: Wed Jul 06, 2005 4:26 am

RE: GE Vs. Rolls-Royce Engines?

Thu Nov 02, 2006 12:37 pm

In the high-thrust regime, right now GE holds the edge, though the Trent 8104 was a very advanced engine in it's own right and the technology has been incorporated in the new Trent 1000 for the 787, the Trent 1700/XWB for the A350, and the Trent 900 for the A380.

The latest members of the Trent line are a three-spool design which is expected to allow RR to increase the thrust of their 787 and A350 engines more quickly and easily then GE will be able to do with the two-spool nx series.
 
commavia
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Joined: Mon Apr 25, 2005 2:30 am

RE: GE Vs. Rolls-Royce Engines?

Thu Nov 02, 2006 12:40 pm

Different airlines have different experiences. AA, for example, has had excellent experiences with Rolls Royce engines, while Continental likes GE engines. It just depends on the airline and the circumstances -- both make excellent products.
 
futurecaptain
Posts: 1918
Joined: Sat Sep 09, 2006 1:54 am

RE: GE Vs. Rolls-Royce Engines?

Thu Nov 02, 2006 1:02 pm

Quoting Commavia (Reply 3):
Different airlines have different experiences.

True, there is no overall one best product when it comes to airplane engines. We may as well be debating Mc Donalds vs Burger King.

One engine may be more fuel efficient, but cost more to maintain.
The other may have more on wing time, but burn a bit more fuel.

It all depends on what your goals are with your a/c.
AirSO. ASpaceO. ASOnline. ASO.com ASO. ASO. ASO. ASO. ASO.
 
scouse
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Joined: Fri Jul 07, 2006 11:44 am

RE: GE Vs. Rolls-Royce Engines?

Thu Nov 02, 2006 1:32 pm

what are the service intervals for both engines and are the service requirements the same. The operating cost difference there can be very big.
American cars only seem to be able to last 3000 miles between oil changes but some of the European models are now at 18000 miles although they are on the more expensive synthetic oils but that still means less $ per mile, is the difference the same for jet engines? MX for any airline that run the big GE and Trent engines would be the best judge on the performance difference, do we have any on A.net?
The airline would be very happy to service the engines half as much as long as they were reliable even though they may have cost 20% more to begin with.
So it is not all about maximum thrust and mtow but return on the $ and which one is the best in that area which is what the airlines are most interested in?
I will vote for the Trent, mainly because I like the noise that they make on take off.
Love to fly
 
gh123
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RE: GE Vs. Rolls-Royce Engines?

Thu Nov 02, 2006 1:38 pm

Rolls Royce are of Britsh origin and are therefore the best.

End of thread - thank you.

 stirthepot   duck   duck   Big grin

To be honest - I'm not really an engine expert.
 
bohica
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Joined: Tue Feb 10, 2004 3:21 pm

RE: GE Vs. Rolls-Royce Engines?

Thu Nov 02, 2006 3:02 pm

Quoting Futurecaptain (Reply 4):
We may as well be debating Mc Donalds vs Burger King.

At least we're not debating two airframe manufacturers.  duck   stirthepot 
 
Rj111
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RE: GE Vs. Rolls-Royce Engines?

Thu Nov 02, 2006 5:53 pm

This thread touched on some of the issues.....
757 RR Engine On Wing Time (by MarkC Oct 21 2006 in Tech Ops)
 
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jetmech
Posts: 2323
Joined: Wed Mar 29, 2006 2:14 am

RE: GE Vs. Rolls-Royce Engines?

Thu Nov 02, 2006 10:53 pm

Quoting Commavia (Reply 3):
It just depends on the airline and the circumstances -- both make excellent products.



Quoting Futurecaptain (Reply 4):
It all depends on what your goals are with your a/c.



Quoting Scouse (Reply 5):
So it is not all about maximum thrust and mtow but return on the $ and which one is the best in that area which is what the airlines are most interested in?

Yep, that's what it is all about, the big picture. Engineering is all about the skillful balance of conflicting requirements (compromise), and I dare say that the people involved in the engineering of jet engines are masters of this juggling game.

Most of the desirable characteristics one may wish to have in an engine have inter-linked and/or diametrically opposed requirements with respect to their fruition in reality, thus, a single device encompassing and accommodating all of these characteristics is impossible.

Power, fuel efficiency, weight, durability, toughness, operational flexibility, maintainability and cost; choose 2 or 3 of these qualities and forget the rest.

Quoting Scouse (Reply 5):
I will vote for the Trent, mainly because I like the noise that they make on take off.

I am very interested in all jet engines regardless of the manufacturer as the engineering behind these mechanical devices is simply amazing, but for some reason, I have a soft spot for Rolls-Royce in particular   .



http://i94.photobucket.com/albums/l118/Jet-Mech/IMG_0825.jpg

[Edited 2006-11-02 15:01:12]
JetMech split the back of his pants. He can feel the wind in his hair :shock: .
 
N231YE
Posts: 2620
Joined: Tue Jul 25, 2006 9:24 am

RE: GE Vs. Rolls-Royce Engines?

Thu Nov 02, 2006 11:00 pm

Oh no, don't let the notorious Canadian member see this thread! He'll give us his "earful" on why he thinks RR engines are horrible.
 
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LTU932
Posts: 13277
Joined: Fri Jan 06, 2006 12:34 am

RE: GE Vs. Rolls-Royce Engines?

Fri Nov 03, 2006 2:35 pm

Quoting N231YE (Reply 10):
Oh no, don't let the notorious Canadian member see this thread! He'll give us his "earful" on why he thinks RR engines are horrible.

Not to worry. Last time I checked his profile, I noticed he was banned.  Wink
Sometimes the only thing more dangerous than a question is an answer. - Ferengi Rule of Acquisition 208
 
highflyer9790
Posts: 1189
Joined: Thu Jul 07, 2005 1:21 am

RE: GE Vs. Rolls-Royce Engines?

Sat Nov 04, 2006 10:15 am

i Love rolls royce, especially the RB-211 series. you can never get enough of those on take off...
121
 
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jetmech
Posts: 2323
Joined: Wed Mar 29, 2006 2:14 am

RE: GE Vs. Rolls-Royce Engines?

Sat Nov 04, 2006 1:36 pm

Quoting LTU932 (Reply 11):
Not to worry. Last time I checked his profile, I noticed he was banned.

What timing! The best opportunity ever for him to glorify GE / rubbish RR and he cannot post  bigthumbsup  bigthumbsup  !
JetMech split the back of his pants. He can feel the wind in his hair :shock: .
 
warreng24
Posts: 574
Joined: Fri Nov 18, 2005 9:38 am

RE: GE Vs. Rolls-Royce Engines?

Mon Nov 06, 2006 9:44 am

Rolls Royce RB211's make that lovely sound on take off.

Rolls Royce the band wasn't bad either.  Smile

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