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GE Vs. Rolls-Royce Engines?  
User currently offlineFreedom747 From , joined Dec 1969, posts, RR:
Posted (7 years 10 months 3 weeks 4 days 10 hours ago) and read 10062 times:

Whose got the best product, and why?
Open forum and let the games begin.

14 replies: All unread, jump to last
 
User currently offlineWorldTraveler From , joined Dec 1969, posts, RR:
Reply 1, posted (7 years 10 months 3 weeks 4 days 10 hours ago) and read 10072 times:

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.


User currently offlineStitch From United States of America, joined Jul 2005, 31003 posts, RR: 86
Reply 2, posted (7 years 10 months 3 weeks 4 days 10 hours ago) and read 10050 times:
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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.


User currently offlineCommavia From United States of America, joined Apr 2005, 11640 posts, RR: 61
Reply 3, posted (7 years 10 months 3 weeks 4 days 10 hours ago) and read 10041 times:

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.

User currently offlineFuturecaptain From , joined Dec 1969, posts, RR:
Reply 4, posted (7 years 10 months 3 weeks 4 days 10 hours ago) and read 9998 times:

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.


User currently offlineScouse From United States of America, joined Jul 2006, 77 posts, RR: 0
Reply 5, posted (7 years 10 months 3 weeks 4 days 9 hours ago) and read 9958 times:

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
User currently offlineGh123 From , joined Dec 1969, posts, RR:
Reply 6, posted (7 years 10 months 3 weeks 4 days 9 hours ago) and read 9946 times:

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.


User currently offlineBohica From United States of America, joined Feb 2004, 2700 posts, RR: 0
Reply 7, posted (7 years 10 months 3 weeks 4 days 8 hours ago) and read 9884 times:

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 


User currently offlineRJ111 From , joined Dec 1969, posts, RR:
Reply 8, posted (7 years 10 months 3 weeks 4 days 5 hours ago) and read 9762 times:

This thread touched on some of the issues.....

757 RR Engine On Wing Time (by MarkC Oct 21 2006 in Tech Ops)


User currently offlineJetMech From Australia, joined Mar 2006, 2699 posts, RR: 53
Reply 9, posted (7 years 10 months 3 weeks 4 days ago) and read 9640 times:

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.
User currently offlineN231YE From , joined Dec 1969, posts, RR:
Reply 10, posted (7 years 10 months 3 weeks 4 days ago) and read 9632 times:

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.

User currently offlineLTU932 From Germany, joined Jan 2006, 13864 posts, RR: 50
Reply 11, posted (7 years 10 months 3 weeks 3 days 8 hours ago) and read 9589 times:

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


User currently offlineHighFlyer9790 From United States of America, joined Jul 2005, 1241 posts, RR: 0
Reply 12, posted (7 years 10 months 3 weeks 2 days 12 hours ago) and read 9559 times:

i Love rolls royce, especially the RB-211 series. you can never get enough of those on take off...


121
User currently offlineJetMech From Australia, joined Mar 2006, 2699 posts, RR: 53
Reply 13, posted (7 years 10 months 3 weeks 2 days 9 hours ago) and read 9557 times:

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.
User currently offlineWarreng24 From United States of America, joined Nov 2005, 707 posts, RR: 0
Reply 14, posted (7 years 10 months 3 weeks 13 hours ago) and read 9519 times:

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

Rolls Royce the band wasn't bad either.  Smile


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