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787/A350 Engine Progress?  
User currently offlineCloudy From , joined Dec 1969, posts, RR:
Posted (6 years 6 months 2 weeks 1 day 10 hours ago) and read 2155 times:

How are the next generation of engines doing - the ones used to power the 787 and A350? That seems to me to be a huge factor in the success of these programs, but not often talked about.

9 replies: All unread, jump to last
 
User currently offlineJetblueguy22 From United States of America, joined Nov 2007, 2818 posts, RR: 4
Reply 1, posted (6 years 6 months 2 weeks 1 day 10 hours ago) and read 2153 times:
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I just know about the 787 and from what I have heard it is going excellent. Its pretty neat how they test those on the 747 as well. I did hear a few weeks ago there was a problem where the engine scrapped the ground. I don't know if it has been confirmed yet.
Blue



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User currently offlineAirframeAS From United States of America, joined Feb 2004, 14150 posts, RR: 24
Reply 2, posted (6 years 6 months 2 weeks 1 day 10 hours ago) and read 2153 times:

I believe that the 787 engine already finished and had done it's first flight, but on a testbed aircraft.


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User currently offlineTranspac787 From United States of America, joined Jul 2007, 3216 posts, RR: 13
Reply 3, posted (6 years 6 months 2 weeks 1 day 10 hours ago) and read 2144 times:

Wasn't there an article some time back that RR missed it's fuel burn targets rather substantially on the Trent 1000's, and they're having to work to resolve it??

User currently offlineXtoler From United States of America, joined Sep 2007, 953 posts, RR: 0
Reply 4, posted (6 years 6 months 2 weeks 1 day 10 hours ago) and read 2119 times:

It is pretty cool to have such a huge engine, yet burn less gas. Plus that 747 test bed does look cool with three normal sized engines and then there is a huge one on the wing. How would you fly that?


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User currently offlineIkramerica From United States of America, joined May 2005, 21562 posts, RR: 59
Reply 5, posted (6 years 6 months 2 weeks 1 day 10 hours ago) and read 2119 times:

Aren't both 787 engines certified at this point? RR first, GE second? Doesn't mean they aren't working to improve them, but they were certified and ready for EIS, but EIS sort of got delayed. Just a little bit…  Wink


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User currently offlineEPA001 From Netherlands, joined Sep 2006, 4848 posts, RR: 40
Reply 6, posted (6 years 6 months 2 weeks 1 day 10 hours ago) and read 2091 times:
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Quoting Transpac787 (Reply 3):
Wasn't there an article some time back that RR missed it's fuel burn targets rather substantially on the Trent 1000's, and they're having to work to resolve it??

I have no links to back this up, but this is the last I have heard:

RR is better on SFC than GE on take-off and climbing to cruise altitude. GE is better on SFC while in cruise. So the longer the flight, the advantage should shift towards GE at this time. But no doubt RR and GE are working very hard to improve their engines on the supposedly "weaker" parts of their performance. Both are excellent products as far as I can be a judge of that. But I am not an expert on this, not at all.


User currently offlineJetblueguy22 From United States of America, joined Nov 2007, 2818 posts, RR: 4
Reply 7, posted (6 years 6 months 2 weeks 1 day 10 hours ago) and read 2087 times:
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HEAD MODERATOR

I'm pretty sure I heard the GE are more efficient than the RR. BUt not 100%.
Blue



All of the opinions stated above are mine and do not represent Airliners.net or my employer unless otherwise stated.
User currently offlineTdscanuck From Canada, joined Jan 2006, 12709 posts, RR: 80
Reply 8, posted (6 years 6 months 2 weeks 1 day 1 hour ago) and read 1595 times:



Quoting Cloudy (Thread starter):
How are the next generation of engines doing - the ones used to power the 787 and A350? That seems to me to be a huge factor in the success of these programs, but not often talked about.

Both certified. You could strap one to a 787 or A350 and fly it tomorrow, if only you had the rest of the 787 or A350.

Quoting Ikramerica (Reply 5):
Aren't both 787 engines certified at this point? RR first, GE second?

Yes.

Quoting Ikramerica (Reply 5):
oesn't mean they aren't working to improve them, but they were certified and ready for EIS, but EIS sort of got delayed.

Exactly. Both RR and GE are now committing to rolling some additional improvements into the EIS engines that, under the original schedule, wouldn't have shown up until a few years after.

Tom.


User currently offlineQantas787 From , joined Dec 1969, posts, RR:
Reply 9, posted (6 years 6 months 2 weeks 1 day ago) and read 1552 times:

So theoretically Boeing shouldn't have to offer quite as much compensation, due to an improved start up product as a consequence of the delay. Wink

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