ferpe
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Txwb Getting Ready For A380 Test

Sat Oct 08, 2011 3:40 pm

Here is a picture of the TXWB being readied for a test on MSN001 of A380:


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Photo © T.Laurent



They will start with ground test and then fly the ship "later this year".

[Edited 2011-10-08 08:56:36]

[Edited 2011-10-22 01:49:21 by moderators]
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wolbo
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RE: Txwb Getting Ready For A380 Test

Sat Oct 08, 2011 3:48 pm

C'mon Airbus, just stick 4 of those TXWBs on the A380 and sell them like hotcakes.  
 
astuteman
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RE: Txwb Getting Ready For A380 Test

Sat Oct 08, 2011 4:06 pm

Quoting ferpe (Thread starter):
Here is a picture of the TXWB being readied for a test on MSN001 of A380:

Thanks for the link. I can't wait to be able to compare the TXWB and T900 (or GP7000) underneath the wing of an A380..

Rgds
 
Elbowroom
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RE: Txwb Getting Ready For A380 Test

Sat Oct 08, 2011 6:51 pm

Most exciting thing I've seen in aviation since the 787 first flight. Good luck RR and Airbus   
 
Lufthansa
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RE: Txwb Getting Ready For A380 Test

Sun Oct 09, 2011 3:42 am

for the A380-900 perhaps ?
could end up offering unbeatable economics!
 
Asiaflyer
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RE: Txwb Getting Ready For A380 Test

Sun Oct 09, 2011 4:05 am

Does anyone know what commitment Airbus have made towards the maker of the current engines, as I believe the TXWB would make the Trent 900 as well as the GP7000 obsolete if it was offered?
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Centre
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RE: Txwb Getting Ready For A380 Test

Sun Oct 09, 2011 4:59 am

Quoting Lufthansa (Reply 4):
for the A380-900 perhaps ?
could end up offering unbeatable economics!

It already looks perfectly proportional on the wing  
I have cut 4 times, and it's still short.
 
simonriat
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RE: Txwb Getting Ready For A380 Test

Sun Oct 09, 2011 7:33 am

Sorry not really up on engines could someone possibly tell me why this emgine is so special?

Thanks in advance.
Simon
 
chiad
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RE: Txwb Getting Ready For A380 Test

Sun Oct 09, 2011 9:06 am

Quoting simonriat (Reply 7):
Sorry not really up on engines could someone possibly tell me why this emgine is so special?

I guess PM, astuteman and others could tell you lot's more than I can.
But the Rolls-Royes Trent XWB is the power-plant for all versions of the Airbus A350 XWB.
A derivative of it will probably power the A380-900.
Here's more info from Wiki:
http://en.wikipedia.org/wiki/Rolls-Royce_Trent#Trent_XWB
 
thegeek
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RE: Txwb Getting Ready For A380 Test

Sun Oct 09, 2011 9:41 am

Quoting simonriat (Reply 7):
Sorry not really up on engines could someone possibly tell me why this emgine is so special?

It's thought to be a significant advance on the Trent 900. Adding a second IPT stage will improve the pressure ratio and therefore the theoretical efficiency, but I'm pretty sure the advances are more significant than just that. Think CF6-80 -> GE90B.
 
icna05e
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RE: Txwb Getting Ready For A380 Test

Sun Oct 09, 2011 10:29 am

Is the aim really only the A389? I hope they can also sell em on the 388, that would make it an even sweeter airplane to the beancounters. And eventually the passengers...

Engine Alliance would be in trouble. As for RR being hesitant to throw the T900 out yet before a significant ROI, I don't think it makes any sense. The Txwb obviously benefits from all the R&D put into the T900 so any Txwb sale can be seen as a T900 ROI. And they should market it to get an even bigger share of the A380 future sales.
 
baroque
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RE: Txwb Getting Ready For A380 Test

Sun Oct 09, 2011 10:57 am

Quoting icna05e (Reply 10):
As for RR being hesitant to throw the T900 out yet before a significant ROI, I don't think it makes any sense. The Txwb obviously benefits from all the R&D put into the T900 so any Txwb sale can be seen as a T900 ROI. And they should market it to get an even bigger share of the A380 future sales.

That is how you and me probably PM and with reservations Astuteman think. The A reservations are because he will know more of the contractual obligations. But, as I understand it, the partners in the T900 are not exactly the same as for the TXWB, so while the two engines seem to be pretty fungible to us, this may not quite be the case for RR. Even to the point where I suspect we have been told by those who really do know that the 389 will be T900 and not TXWB.

On the plus side, we have also been told that many of the features of the TXWB will be back migrated to the T900. Presumably these could include blisks and the better compressor conditions from better CFD for the blades (or brades if any of them happen to come from Japan) and better thermal coatings but not the extra stage. So there will be limits to improvements in the PR and hot end efficiencies. Oh yes, maybe a better fan back migrated too.

It will be interesting when the release the engine weight for the TXWB - I suspect it could surprise.
 
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larshjort
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RE: Txwb Getting Ready For A380 Test

Sun Oct 09, 2011 11:01 am

Quoting icna05e (Reply 10):
Is the aim really only the A389? I hope they can also sell em on the 388, that would make it an even sweeter airplane to the beancounters. And eventually the passengers...

The TrentXWB is designed for the Airbus 350, but it is a wet dream of many to see it on the A380. A lot has happened in th 5-6 years between the design of the T900 and Txwb started.

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EPA001
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RE: Txwb Getting Ready For A380 Test

Sun Oct 09, 2011 11:03 am

Quoting wolbo (Reply 1):
C'mon Airbus, just stick 4 of those TXWBs on the A380 and sell them like hotcakes.  

That would be so nice.  .

Quoting astuteman (Reply 2):
I can't wait to be able to compare the TXWB and T900 (or GP7000) underneath the wing of an A380..

I am sure the data will be quite interesting.  .

Quoting Centre (Reply 6):
It already looks perfectly proportional on the wing

It does indeed, though we should see more pictures from more angles to be better able to make the final "judgement" on the looks.

Quoting Baroque (Reply 11):
It will be interesting when the release the engine weight for the TXWB - I suspect it could surprise.

The lower it would be, the bigger the surprise?     .
 
art
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RE: Txwb Getting Ready For A380 Test

Sun Oct 09, 2011 12:02 pm

Quoting icna05e (Reply 10):
As for RR being hesitant to throw the T900 out yet before a significant ROI, I don't think it makes any sense. The Txwb obviously benefits from all the R&D put into the T900 so any Txwb sale can be seen as a T900 ROI. And they should market it to get an even bigger share of the A380 future sales.

Aside from contractual commitments to development partners on the T900, I think RR should offer the TXWB for the A380 because it might make the difference between RR getting the engine order from airlines and GP7200 getting the order. Better for one of your products to cannibalise sales of another than to get no sale at all! No sale = no ROI on either T900 or TXWB.
 
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Stitch
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RE: Txwb Getting Ready For A380 Test

Sun Oct 09, 2011 12:07 pm

Quoting icna05e (Reply 10):
As for RR being hesitant to throw the T900 out yet before a significant ROI, I don't think it makes any sense.

It's not just RR, however. As Baroque noted, there are partners on the T900 who want to make money. And the fewer Trent 900s that Rolls sells impacts the operating costs of the engine as that means less spares so maintenance prices increase, which won't make operators happy.

Also, it's not unreasonable to expect that the Trent XWB would not be available on the A380 until the end of the decade. That means at least 90 A380s will have been delivered with Trent 900 power (assuming VS never takes delivery). If Rolls tosses the T900 to the curb in favor of the Trent XWB, that means those operators have to scrap those engines and order Trent XWBs plus pay whatever additional conversion costs there are to hang them off the plane. I imagine that's not going to sit well with operators, either.  

And with so many customers for the Trent 900, that gives Rolls a nice base to spread Performance Improvement Packages (PIPs) across, so the Trent 900 is going to get better on it's own.
 
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Revelation
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RE: Txwb Getting Ready For A380 Test

Sun Oct 09, 2011 3:09 pm

Quoting Baroque (Reply 11):

That is how you and me probably PM and with reservations Astuteman think. The A reservations are because he will know more of the contractual obligations. But, as I understand it, the partners in the T900 are not exactly the same as for the TXWB, so while the two engines seem to be pretty fungible to us, this may not quite be the case for RR. Even to the point where I suspect we have been told by those who really do know that the 389 will be T900 and not TXWB.

On the plus side, we have also been told that many of the features of the TXWB will be back migrated to the T900. Presumably these could include blisks and the better compressor conditions from better CFD for the blades (or brades if any of them happen to come from Japan) and better thermal coatings but not the extra stage. So there will be limits to improvements in the PR and hot end efficiencies. Oh yes, maybe a better fan back migrated too.

Not to mention that RR has the classy problem of getting the TXWB's production ramped up for the 500+ A350XWBs already ordered, thus they have 1000+ engines to make. At some point it would be feasible to incorporate orders for A380, but that point isn't now.

Quoting Stitch (Reply 15):
If Rolls tosses the T900 to the curb in favor of the Trent XWB, that means those operators have to scrap those engines and order Trent XWBs plus pay whatever additional conversion costs there are to hang them off the plane.

I'm not following. RR certainly wouldn't do this, they'd offer the TXWB in parallel with the T900, if they offer the TXWB at all. Why do you think otherwise?
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RE: Txwb Getting Ready For A380 Test

Sun Oct 09, 2011 4:01 pm

Quoting Stitch (Reply 15):
If Rolls tosses the T900 to the curb in favor of the Trent XWB, that means those operators have to scrap those engines and order Trent XWBs plus pay whatever additional conversion costs there are to hang them off the plane.

Even at 90 frames the T900 fleet would be not much smaller than the T500 fleet (130 frames) so I'm not sure why you consider that not viable. And why in the world would anyone scrap perfectly good engines?
 
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Stitch
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RE: Txwb Getting Ready For A380 Test

Sun Oct 09, 2011 4:43 pm

Quoting WingedMigrator (Reply 17):
Even at 90 frames the T900 fleet would be not much smaller than the T500 fleet (130 frames) so I'm not sure why you consider that not viable.

I do consider it viable, but the more T900s that Rolls-Royce can sell the more viable it becomes and the more encouragement Rolls-Royce has to offer PIPs, which will make the engine better and encourage more A380 customers to select the engine.

If Rolls offers the Trent XWB and the Trent 900, existing Trent 900 customers have to weigh operating a mixed fleet. They also have to weigh that if Rolls stops securing orders for Trent 900s, Rolls has little incentive to offer PIPs so the Trent 900 will not improve and will become more and more expensive to operate and these higher operating costs would also impact the resale value of A380s with the Trent 900, making them less desirable in the marketplace and harder to re-sell (or re-sell at a good price).
 
baroque
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RE: Txwb Getting Ready For A380 Test

Sun Oct 09, 2011 10:53 pm

Quoting Stitch (Reply 18):
If Rolls offers the Trent XWB and the Trent 900, existing Trent 900 customers have to weigh operating a mixed fleet. They also have to weigh that if Rolls stops securing orders for Trent 900s, Rolls has little incentive to offer PIPs so the Trent 900 will not improve and will become more and more expensive to operate and these higher operating costs would also impact the resale value of A380s with the Trent 900, making them less desirable in the marketplace and harder to re-sell (or re-sell at a good price).

Given this consideration, it is a bit surprising that RR do not make their map for development more clear. But then again, it may well be that they do just that to potential customers, while keeping us and presumably they hope the EA folk guessing a bit more than EA and we would prefer.

Maybe looking at EA developments might be the best way to work out which way RR will go.

At present figuring out the fate of the T900 demands a bit of tea leaf reading skill, but I am pretty sure more than one post over the past 3 or 4 years has indicated the RR plans for this machine. You probably need a good memory and attention to the provenance of suggestions to pick it up, I think we have been told it is along the lines of improve the T900.

Should the TWXB prove to be such a sharp improvement on the T900, RR might have the difficult choice of ditching its plans or suffering a lot of criticism. Getting out of contractual commitments might be impossible. But if they do wish to change, this comment becomes of great significance:

Quoting Revelation (Reply 16):
Not to mention that RR has the classy problem of getting the TXWB's production ramped up for the 500+ A350XWBs already ordered, thus they have 1000+ engines to make. At some point it would be feasible to incorporate orders for A380, but that point isn't now.

At some point this becomes a potentially critical issue. It is going to take a while for the TXWB production to be able to cope with A350 needs. I am sure planning is going on NOW, but they ain't going to tell us.

Look at how silent RR were over the dreaded oil pipe on the T900 engine on Nancy Bird. Just admitting they were at fault would have been a help earlier in the piece as clearly they were. So I don't think that RR are going to get very chatty about the future of the T900.

The thing that might be critical for the TXWB getting aboard the 388 could be weight. I suspect it MIGHT weigh quite a bit less than you would predict by looking at similar engines from RR. A couple of tonnes off the empty weight of an A388 could be a deciding factor perhaps.

[Edited 2011-10-09 16:14:25]
 
beeweel15
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RE: Txwb Getting Ready For A380 Test

Sun Oct 09, 2011 11:08 pm

Quoting Baroque (Reply 19):
The thing that might be critical for the TXWB getting aboard the 388 could be weight. I suspect it MIGHT weigh quite a bit less than you would predict by looking at similar engines from RR. A couple of tonnes off the empty weight of an A388 could be a deciding factor perhaps.

Can this engine work on the 777-200LR and 300ER if Boeing would allow it.
 
baroque
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RE: Txwb Getting Ready For A380 Test

Sun Oct 09, 2011 11:19 pm

Quoting beeweel15 (Reply 20):
Quoting Baroque (Reply 19):
The thing that might be critical for the TXWB getting aboard the 388 could be weight. I suspect it MIGHT weigh quite a bit less than you would predict by looking at similar engines from RR. A couple of tonnes off the empty weight of an A388 could be a deciding factor perhaps.

Can this engine work on the 777-200LR and 300ER if Boeing would allow it.

Even the biggest version for the A35J is too small for those planes. And that is after allowing for lighter fuel loads IIRC.

GE will have to fix the GE 90-115bs. Lightsaber is needed to tell us how much revision would be required to include contra-rotation to that engine but near-new engine does come to mind! Without contra, the GE 90 is going to lag quite a bit.

It may well be not so much if B will allow it, but rather if GE will even begin to let B allow it!!
 
thegeek
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RE: Txwb Getting Ready For A380 Test

Sun Oct 09, 2011 11:22 pm

Quoting beeweel15 (Reply 20):
Can this engine work on the 777-200LR and 300ER if Boeing would allow it.

(a) Boeing won't allow it
(b) produces significantly less thrust

So no.

Quoting Stitch (Reply 15):

I don't doubt these factors. However, how is that RR's problem?

I'd hope by the end of the decade more than 90 A380s are delivered. Typo?
 
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Stitch
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RE: Txwb Getting Ready For A380 Test

Sun Oct 09, 2011 11:28 pm

Quoting Baroque (Reply 19):
Given this consideration, it is a bit surprising that RR do not make their map for development more clear.

Rolls plans (planned?) to have a PIP out this year for the Trent 900 that introduced elliptical leading-edge modifications throughout the entire compression system, including improved high- and intermediate-pressure (HP/IP) compressor blades and vanes. They were looking at a 1% reduction in SFC and planned to make it standard on production engines starting this year.



Quoting thegeek (Reply 22):
I don't doubt these factors. However, how is that RR's problem?

t's RR's problem if it makes new customers consider Engine Alliance or to not consider adding more A380-800s in favor of, perhaps, 777Xs (which will have GE power).



Quoting thegeek (Reply 22):
I'd hope by the end of the decade more than 90 A380s are delivered. Typo?

I expect they will have more, hence my statement "at least 90".  
 
baroque
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RE: Txwb Getting Ready For A380 Test

Sun Oct 09, 2011 11:37 pm

Quoting Stitch (Reply 23):
Quoting Baroque (Reply 19):
Given this consideration, it is a bit surprising that RR do not make their map for development more clear.

Rolls plans (planned?) to have a PIP out this year for the Trent 900 that introduced elliptical leading-edge modifications throughout the entire compression system, including improved high- and intermediate-pressure (HP/IP) compressor blades and vanes. They were looking at a 1% reduction in SFC and planned to make it standard on production engines starting this year.

Interesting. Do we know if this is part of the XWB sourced mods or do they date back further in history?

That is quite a push. Could one wonder if the A380 will start to do to the 77W what it did to the A346 though in a less easily comparable way?
 
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Stitch
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RE: Txwb Getting Ready For A380 Test

Sun Oct 09, 2011 11:59 pm

Quoting Baroque (Reply 24):
Interesting. Do we know if this is part of the XWB sourced mods or do they date back further in history?

The changes are similar to elliptical leading-edge modifications made to the HP compressor introduced to International Aero Engines' V2500 in the SelectOne program, as well as the Trent 700EP. The elliptical feature also is part of the baseline fan design for the Trent 1000 and XWB.
 
icna05e
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RE: Txwb Getting Ready For A380 Test

Mon Oct 10, 2011 12:15 am

Thanks Baroque, artand Stitch for enlightenning my lantern! Woaw, the enginemaking market is much more complicated than I thought it would be. I'm surprised they couldn't make a deal with those contractors to compensate for any loss in business. After all, as Revelation noted, it's not as if they couldn't pick any extra work to speed up Txwb's deliveries once they are certified.
Is the A380 the only aircraft tested for this engine? Is it them or GE who own their own 747 for engine testing?
 
baroque
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RE: Txwb Getting Ready For A380 Test

Mon Oct 10, 2011 12:39 am

Quoting Stitch (Reply 25):
Quoting Baroque (Reply 24):
Interesting. Do we know if this is part of the XWB sourced mods or do they date back further in history?

The changes are similar to elliptical leading-edge modifications made to the HP compressor introduced to International Aero Engines' V2500 in the SelectOne program, as well as the Trent 700EP. The elliptical feature also is part of the baseline fan design for the Trent 1000 and XWB.

Even more interesting!! Is IAE where the mod originated, or as with most developments had it a very mixed parentage?

The other point to wonder about is, if sales of the T900 move to a max of about 4x150 to 200 or a max of say 800, while the TXWB is already at about 1100 and likely to climb, aside from availability, is the TXWB not likely in the end going to be a cheaper option to produce and run?

If 800 is X and 1100 is Y, how far apart would X and Y have to be to make RR have to think again? Or will the funds already invested in "PIPPING" be such as to render a Y-X calculation irrelevant? And as you say, the costs of a change would be simply horrid.

I remember well chatting to a RR engineer in Hussein sastranegara airport Bandung about why RR had not put many mods into the Darts - we had just lost our collective ears to a taxying F27 (tells you how long ago it was!). He said one of the problems was ensuring that customers did not onsell mods rather than fit them. I suppose with power by the hour, RR has better control over PIPs than in those high and far off times.
 
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BoeingVista
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RE: Txwb Getting Ready For A380 Test

Mon Oct 10, 2011 3:50 am

Quoting Baroque (Reply 21):
Even the biggest version for the A35J is too small for those planes. And that is after allowing for lighter fuel loads IIRC.

One of the things that the 77X has to do to remain competitive with the A350-1000 is to go on a diet so the question should be how much weight does she have to shed to enable a 98-100K thrust engine to do the job.
BV
 
baroque
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RE: Txwb Getting Ready For A380 Test

Mon Oct 10, 2011 4:18 am

Quoting BoeingVista (Reply 28):
Quoting Baroque (Reply 21):
Even the biggest version for the A35J is too small for those planes. And that is after allowing for lighter fuel loads IIRC.

One of the things that the 77X has to do to remain competitive with the A350-1000 is to go on a diet so the question should be how much weight does she have to shed to enable a 98-100K thrust engine to do the job.

I am sure there are a few smiles of sympathetic amusement at that need for a trip around the virtuous circle that we have all been instructed about.

Why 98-100 k thrust? To keep competitive thrust levels?? First question is will a new GE engine be the same thrust range as the current one, or will they downsize as Airbus/RR did in the first iterations? Do they really think a revised 777 can be as light as the 35J - always assuming the 35J really is as light as was stated?

My guess based on nothing whatsoever, is Boeing will go for a slightly heavier plane with more powerful engines than the 35J. Aside from anything else, the wing area will dictate more power to match hot and high performance - unless of course they finally trump Airbus on big wings. Possible I suppose. But that is going to mean pretty near completely new engines and what is looking like a near new airframe - costs?????
 
thegeek
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RE: Txwb Getting Ready For A380 Test

Mon Oct 10, 2011 4:52 am

Quoting BoeingVista (Reply 28):
One of the things that the 77X has to do to remain competitive with the A350-1000 is to go on a diet so the question should be how much weight does she have to shed to enable a 98-100K thrust engine to do the job.

I can't imagine that MTOW will be reduced. It would be the first time in the history of aviation for a new version of a plane of the same size to have a smaller MTOW AFAIK. Therefore thrust must stay the same, possibly with increased MZFW to lift the increased payload.
 
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BoeingVista
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RE: Txwb Getting Ready For A380 Test

Mon Oct 10, 2011 5:04 am

Quoting Baroque (Reply 29):

Why 98-100 k thrust? To keep competitive thrust levels??

Because thats probably as big as the current TXWB will scale, but I had forgotten that Boeing has said it wants to increase span so there is unlikely to be much weight reduction

Quoting Baroque (Reply 29):
My guess based on nothing whatsoever, is Boeing will go for a slightly heavier plane with more powerful engines than the 35J. Aside from anything else, the wing area will dictate more power to match hot and high performance - unless of course they finally trump Airbus on big wings.

While you can build a more economical GE90 today than 10 years ago more thrust and weight is likely to mean more fuel burnt than A350-1000.
BV
 
baroque
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RE: Txwb Getting Ready For A380 Test

Mon Oct 10, 2011 5:26 am

Quoting BoeingVista (Reply 31):
While you can build a more economical GE90 today than 10 years ago more thrust and weight is likely to mean more fuel burnt than A350-1000.

Well that is what a few folk think. Others prefer the version that whatever the 35J can do, the 77Wxsuper can do much more better.

Must grab a couple of Astuteman's peanuts.

It is going to be interesting how much change GE puts in to the new engine and how much of the existing monster they keep.

So far it appears that RR has finessed the combination with keeping much of the T1000 features - and presumably expenditure - with adding new developments to get to the horridly named TXWB. Arguably, they did their "gulp and step change" with the T900 as they added contra. Equally arguably, the XWB has taken another step with the extra stage.

How will GE run their part of the race? Presumably much depends on what sort of a race it turns out to be.

But RR are unlikely to be placing any hopes of getting their biggest engines on the T7 in any conceivable time frame. And having been a rejected bride at that particular altar, they are likely to put a bit of solid work into making their new linkage work even better.
 
astuteman
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RE: Txwb Getting Ready For A380 Test

Mon Oct 10, 2011 10:10 am

Quoting Baroque (Reply 32):
Must grab a couple of Astuteman's peanuts

Easy Tiger  

Rgds
 
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Revelation
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RE: Txwb Getting Ready For A380 Test

Mon Oct 10, 2011 11:33 am

Quoting astuteman (Reply 33):
Quoting Baroque (Reply 32):
Must grab a couple of Astuteman's peanuts

Easy Tiger

 

Interesting how the TXWB thread is about A380 and now 777 engines, and the XWB fuse section thread is now about the 787!

Unfortunately there's not much news filtering out about the actual XWB.

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N14AZ
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RE: Txwb Getting Ready For A380 Test

Mon Oct 10, 2011 12:21 pm

Quoting Revelation (Reply 34):
Interesting how the TXWB thread is about A380 and now 777 engines, and the XWB fuse section thread is now about the 787!

This is something I always wanted to know and maybe this is right moment to ask: how can you actually assess the performance of a single (test-) engine on a four-engine test-bed? Does anybody have a link with a short description?


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baroque
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RE: Txwb Getting Ready For A380 Test

Mon Oct 10, 2011 12:57 pm

Quoting Revelation (Reply 34):
Interesting how the TXWB thread is about A380 and now 777 engines, and the XWB fuse section thread is now about the 787!

Unfortunately there's not much news filtering out about the actual XWB.

You have a point about discussion transfer. There is probably a law to be formulated from those observations.

And as for news filtering out, you do have to admit that Airbus and its A350 are either singularly tight with information or anything about it is singularly boring. Well, maybe both!
 
wolbo
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RE: Txwb Getting Ready For A380 Test

Mon Oct 17, 2011 9:41 pm

Updated photo of the Trent XWB on miscalnoor.blogspot.com.

Looking good.  

http://1.bp.blogspot.com/-SaqE3A7fBQc/TpySXqL7YCI/AAAAAAAABU4/vw4cjBgvmhI/s1600/Ab96E_JCAAEWQuq.jpg+large.jpg
 
baroque
Posts: 12302
Joined: Thu Apr 27, 2006 2:15 pm

RE: Txwb Getting Ready For A380 Test

Tue Oct 18, 2011 7:14 am

Quoting wolbo (Reply 37):
Updated photo of the Trent XWB on miscalnoor.blogspot.com.

You don't get the faintest suspicion that RR feels it is going to be very proud of the TXWB do you? Pity the engine has such a god-awful name!!

[Edited 2011-10-18 00:15:21]
 
astuteman
Posts: 6406
Joined: Mon Jan 24, 2005 7:50 pm

RE: Txwb Getting Ready For A380 Test

Tue Oct 18, 2011 7:23 am

Quoting Baroque (Reply 38):
You don't get the faintest suspicion that RR feels it is going to be very proud of the TXWB do you? Pity the engine has such a god-awful name!!

Needs a number, doesn't it  
Quoting wolbo (Reply 37):
Updated photo of the Trent XWB on miscalnoor.blogspot.com.

Nice.   

Rgds
 
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PM
Posts: 4848
Joined: Wed Feb 09, 2005 5:05 pm

RE: Txwb Getting Ready For A380 Test

Tue Oct 18, 2011 8:40 am

Quoting Baroque (Reply 38):
Pity the engine has such a god-awful name!!
Quoting astuteman (Reply 39):
Needs a number, doesn't it

About once a year (gosh, is it that time already?!), I speculate that the A380-900 will be launched as the A380XL (geddit?!) and that RR will hang four Trent XLs under the wings.

Or am I just missing Fireball XL5...?  

(Anyway, yes. Memo to RR: drop the tacky name and call it the Trent 1900 or whatever!)
 
Burkhard
Posts: 1916
Joined: Fri Nov 17, 2006 9:34 pm

RE: Txwb Getting Ready For A380 Test

Tue Oct 18, 2011 10:28 am

Quoting thegeek (Reply 22):
I'd hope by the end of the decade more than 90 A380s are delivered. Typo?

We speak about T900-powered ones, the 100ds for Emirates don't have Trents.

Quoting N14AZ (Reply 35):
This is something I always wanted to know and maybe this is right moment to ask: how can you actually assess the performance of a single (test-) engine on a four-engine test-bed? Does anybody have a link with a short description?

First advantage is, that you do not need it, the aircraft can fly safe with three. So you can shut it down, restart is, run it idle or at full power, just like the test program requires.
 
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frigatebird
Posts: 1193
Joined: Thu Jun 05, 2008 7:02 pm

RE: Txwb Getting Ready For A380 Test

Tue Oct 18, 2011 11:55 am

Quoting PM (Reply 40):
(Anyway, yes. Memo to RR: drop the tacky name and call it the Trent 1900 or whatever!)

Uhm, that name would probably sound like last century technology   
How about Trent 2000?
GE's new engine for the 777 doesn't have the most compelling name either. Wasn't it GE9x or something?   

Better ask Airbus to drop the XWB name! Especially in comparison with its main competitor, the 777, it's just not right anyway   
146,318/19/20/21,AB6,332,343,345,388,722,732/3/4/5/G/8,9,742,74E,744,752,762,763,772,77E,773,77W,AT4/7,ATP,CRK,E90,F50/7
 
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Stitch
Posts: 23504
Joined: Wed Jul 06, 2005 4:26 am

RE: Txwb Getting Ready For A380 Test

Tue Oct 18, 2011 12:47 pm

Quoting Baroque (Reply 38):
You don't get the faintest suspicion that RR feels it is going to be very proud of the TXWB do you? Pity the engine has such a god-awful name!!
Quoting astuteman (Reply 39):
Needs a number, doesn't it.    
Quoting PM (Reply 40):
(Anyway, yes. Memo to RR: drop the tacky name and call it the Trent 1900 or whatever!)

When one of the Chinese A350XWB customers ordered the plane, they also ordered "Trent 1800" engines for it.

The Trent 1700 was the nomenclature for the bleed-air version of the Trent 1000 planned for the original A350, so incrementing that by 100 for the A350XWB...
 
wolbo
Posts: 415
Joined: Fri Mar 30, 2007 10:09 pm

RE: Txwb Getting Ready For A380 Test

Tue Oct 18, 2011 2:18 pm

Two more photos from Airbus.

http://p.twimg.com/AcB31bCCEAAjK83.jpg:large

http://p.twimg.com/AcBpET0CAAAvhlP.jpg:large
 
jacobin777
Posts: 12262
Joined: Sat Sep 11, 2004 6:29 pm

RE: Txwb Getting Ready For A380 Test

Tue Oct 18, 2011 4:04 pm

I cannot wait to hear that bad boy spool up and get cranking and see a video of it on youtube.   

Seeing an A380 fly with a XWB engine will be quite a view.   
"Up the Irons!"
 
AirbusA6
Posts: 1502
Joined: Tue Apr 26, 2005 5:53 am

RE: Txwb Getting Ready For A380 Test

Tue Oct 18, 2011 4:21 pm

Quoting Stitch (Reply 43):
When one of the Chinese A350XWB customers ordered the plane, they also ordered "Trent 1800" engines for it.

That also satisfies the current obsession with the lucky '8'

I wonder if they were tempted to remove the Goodrich sticker from the cowling, seeing that they're being taken over by United Technologies, owner of P&W...
it's the bus to stansted (now renamed National Express a6 to ruin my username)
 
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EPA001
Posts: 3802
Joined: Tue Sep 12, 2006 8:13 pm

RE: Txwb Getting Ready For A380 Test

Tue Oct 18, 2011 4:30 pm

Quoting wolbo (Reply 44):
Two more photos from Airbus.

Very nice. I have not seen a picture yet which better shows the difference between the Trent XWB and the Trent-900 under the same wing. That hopefully will put the whole thing in a better perspective.  .
 
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BoeingVista
Posts: 1754
Joined: Mon Jan 12, 2009 9:54 am

RE: Txwb Getting Ready For A380 Test

Wed Oct 19, 2011 2:42 am

Quoting AirbusA6 (Reply 46):
I wonder if they were tempted to remove the Goodrich sticker from the cowling, seeing that they're being taken over by United Technologies, owner of P&W...

Why? RR have just joined a GTF JV with PW.

Last week they were mortal enemys this week they are friends again!
BV
 
baroque
Posts: 12302
Joined: Thu Apr 27, 2006 2:15 pm

RE: Txwb Getting Ready For A380 Test

Wed Oct 19, 2011 3:17 am

Quoting EPA001 (Reply 47):
Quoting wolbo (Reply 44):
Two more photos from Airbus.

Very nice. I have not seen a picture yet which better shows the difference between the Trent XWB and the Trent-900 under the same wing. That hopefully will put the whole thing in a better perspective.

Also puts a different perspective on why RR did not increase fan diameter for the largest TXWB. (Note I did not write change the fan!!!)

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