cancidas
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Roll Royce Trent 1000 Flies!

Wed Jun 20, 2007 2:16 am

PARIS 2007: Rolls-Royce flies Boeing 787’s Trent 1000 engine on 747 testbed


Rolls-Royce has flown its Trent 1000 turbofan – the lead powerplant for Boeing’s 787 twinjet – for the first time, aboard the UK manufacturer’s 747 testbed. The first phase of the engine’s flight test programme is being conducted from Waco, Texas.

“We gave the engine a hard time for its first flight, but it did everything we asked. It was very stable and predictable,” says Rolls-Royce chief test pilot Phill O’Dell.





http://www.flightglobal.com/articles...787s-trent-1000-engine-on-747.html
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KELPkid
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RE: Roll Royce Trent 1000 Flies!

Wed Jun 20, 2007 4:23 am

To what extent is the Trent 1000 new, and to what extent is it based on previous Trent/RB.211 designs?

I'm assuming that there was less development work involved with it (due to the developmental nature of the engine) than there is with the GENx.
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astuteman
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RE: Roll Royce Trent 1000 Flies!

Wed Jun 20, 2007 4:30 am

Quoting KELPkid (Reply 1):
I'm assuming that there was less development work involved with it (due to the developmental nature of the engine) than there is with the GENx.

I'm not convinced that this is a safe assumption to make.......
There is some significant new technology involved.....
It does build on the standard Trent 3-shaft architecture, though.

Quoting Cancidas (Thread starter):

Don't these engines look BIG on a 747?  Smile

Regards
 
graphic
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RE: Roll Royce Trent 1000 Flies!

Wed Jun 20, 2007 4:40 am

I'd figure there's got to be alot of new toys inside the cowling, seeing as how it is a bleedless engine.
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KELPkid
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RE: Roll Royce Trent 1000 Flies!

Wed Jun 20, 2007 4:41 am

Quoting Astuteman (Reply 2):
Don't these engines look BIG on a 747?

Not as big as a GE90-115  Wink But a little bigger than stock  Smile

The "chevroned" nacelle almost gives us a sneak peek at what the 747-8 will look like Big grin
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DAYflyer
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RE: Roll Royce Trent 1000 Flies!

Wed Jun 20, 2007 4:52 am

That thing is big. Dwarfs the regular 744 engines. I bet the pilot would love to 4 of those hanging on the wings.
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adipasqu
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RE: Roll Royce Trent 1000 Flies!

Wed Jun 20, 2007 5:00 am

Quoting DAYflyer (Reply 5):
Dwarfs the regular 744 engines.

I believe it is a 742 with RB211-524C's and not a 744.

[Edited 2007-06-19 22:15:14]
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deltadc9
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RE: Roll Royce Trent 1000 Flies!

Wed Jun 20, 2007 5:15 am

Quoting Adipasqu (Reply 6):
I believe it is a 741 with RB211's and not a 744.

That cant be a 741, look at the hump.
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adipasqu
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RE: Roll Royce Trent 1000 Flies!

Wed Jun 20, 2007 5:38 am

Quoting DeltaDC9 (Reply 7):
That cant be a 741, look at the hump.

Sorry, it's a 742. However, the hump is the same for 741 and 742, I believe.
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GQfluffy
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RE: Roll Royce Trent 1000 Flies!

Wed Jun 20, 2007 6:04 am

Quoting DeltaDC9 (Reply 7):
That cant be a 741, look at the hump.

What about it? Most 741s were reconfigured with more pax seats and windows up top....
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KELPkid
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RE: Roll Royce Trent 1000 Flies!

Wed Jun 20, 2007 6:07 am

Quoting Adipasqu (Reply 6):
I believe it is a 742 with RB211-524C's and not a 744.

Looks like RR has a leg up on GE in this respect: GE's flying engine testbed has P&W JT9D's in the non-test engine positions  Wink
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warreng24
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RE: Roll Royce Trent 1000 Flies!

Wed Jun 20, 2007 6:08 am

Does anyone have the line number for the bird being used as the test bed?
 
KELPkid
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RE: Roll Royce Trent 1000 Flies!

Wed Jun 20, 2007 6:13 am

Quoting Warreng24 (Reply 11):
Does anyone have the line number for the bird being used as the test bed?

Here you go:


View Large View Medium
Click here for bigger photo!

Photo © David Eyre



I searched for "Rolls-Royce Engine Testbed  Wink
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tepidhalibut
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RE: Roll Royce Trent 1000 Flies!

Wed Jun 20, 2007 6:17 am

Quoting Warreng24 (Reply 11):
Does anyone have the line number for the bird being used as the test bed?

Have a search for cn 21966/446 in this site and you find a few good old pics.
 
MCIGuy
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RE: Roll Royce Trent 1000 Flies!

Wed Jun 20, 2007 6:27 am

Quoting KELPkid (Reply 1):
I'm assuming that there was less development work involved with it (due to the developmental nature of the engine) than there is with the GENx.

Not necessarily so. If I'm not mistaken, the GEnx is a derivative of the GE90.  Smile
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curticool
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RE: Roll Royce Trent 1000 Flies!

Wed Jun 20, 2007 6:29 am

What is the other engine
on the far-left and far-right  Confused
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adipasqu
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RE: Roll Royce Trent 1000 Flies!

Wed Jun 20, 2007 6:36 am

Quoting Curticool (Reply 15):
What is the other engine
on the far-left and far-right

RB211-524C
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deltadc9
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RE: Roll Royce Trent 1000 Flies!

Wed Jun 20, 2007 6:42 am

Quoting GQfluffy (Reply 9):
What about it? Most 741s were reconfigured with more pax seats and windows up top....

The windows are usually not that particular config when it is a retrofitted 741.
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adipasqu
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RE: Roll Royce Trent 1000 Flies!

Wed Jun 20, 2007 7:47 am

Quoting DeltaDC9 (Reply 17):
The windows are usually not that particular config when it is a retrofitted 741.

Really???


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Photo © Mika B Virolainen - FAP



...and many more
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N231YE
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RE: Roll Royce Trent 1000 Flies!

Wed Jun 20, 2007 9:27 am

Quoting DeltaDC9 (Reply 17):
The windows are usually not that particular config when it is a retrofitted 741.

Incorrect. Many airlines decided to dump the lounge (with limited seating) on the upper deck after the early-70's oil crisis, in favor of more seating. Thus, the section of the fuselage with the 3 upper deck windows were removed and replaced with a fuselage section containing 10 windows.

Example (same aircraft; first in 1972, last in 1977):


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Photo © Ken Rose

 
corey07850
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RE: Roll Royce Trent 1000 Flies!

Wed Jun 20, 2007 9:45 am

If you're going to publish pictures, at least spend some time to wash the plane  Wink
 
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Zkpilot
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RE: Roll Royce Trent 1000 Flies!

Wed Jun 20, 2007 8:10 pm

Quoting DAYflyer (Reply 5):
That thing is big. Dwarfs the regular 744 engines. I bet the pilot would love to 4 of those hanging on the wings

Isn't the 748I supposed to have engines along these lines... although GE rather than RR... You may yet see a 747 with 4 big engines  Smile
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deltadc9
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RE: Roll Royce Trent 1000 Flies!

Wed Jun 20, 2007 10:01 pm

Quoting Adipasqu (Reply 18):
...and many more



Quoting N231YE (Reply 19):
Thus, the section of the fuselage with the 3 upper deck windows were removed and replaced with a fuselage section containing 10 windows

OK, take a look at that 200, then look at the 100's you posted and tell me if you see something different.

Quoting Zkpilot (Reply 21):
Isn't the 748I supposed to have engines along these lines...

Yes, but with a sloghtly smaller fan diameter, but it will still be much bigger.
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DAYflyer
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RE: Roll Royce Trent 1000 Flies!

Wed Jun 20, 2007 11:46 pm

Quoting Zkpilot (Reply 21):
Isn't the 748I supposed to have engines along these lines... although GE rather than RR... You may yet see a 747 with 4 big engines

Yes it is.
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hangarrat
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RE: Roll Royce Trent 1000 Flies!

Thu Jun 21, 2007 12:53 am

Quoting N231YE (Reply 19):
Thus, the section of the fuselage with the 3 upper deck windows were removed and replaced with a fuselage section containing 10 windows

As I understand, all but the earliest 100s were built with windows in the frames, but plugs in the holes. Some operators intially opted for only three windows in the upper deck but later removed the plugs and installed windows. The fuse section was not changed.
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N231YE
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RE: Roll Royce Trent 1000 Flies!

Thu Jun 21, 2007 5:45 am

Quoting HangarRat (Reply 24):
As I understand, all but the earliest 100s were built with windows in the frames, but plugs in the holes. Some operators initially opted for only three windows in the upper deck but later removed the plugs and installed windows. The fuse section was not changed.

The first 747-100s (and even the first 7 -200s) were built with 3 windows on each side. The 10 window option became available in the summer of 1971, and shortly thereafter, became standard. Some airlines retrofitted their entire fleet for the 10 window option, while others, such as TWA, wanted to keep their fleet with uniform looks. TWA's first 747s had the 3 windows, but their last deliveries occurred after the 10 windows became standard. Therefore, the last airframes had 7 of the 10 windows plugged to keep fleet uniformity (with the first airframes that were built with only 3).

Quoting DeltaDC9 (Reply 22):
OK, take a look at that 200, then look at the 100's you posted and tell me if you see something different.

Since the upper deck of the -200 was extended 7 feet, and the early Satcom housing was eliminated, that may be the cause of the differences you see.
 
deltadc9
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RE: Roll Royce Trent 1000 Flies!

Thu Jun 21, 2007 6:18 am

Quoting N231YE (Reply 25):
Since the upper deck of the -200 was extended 7 feet, and the early Satcom housing was eliminated, that may be the cause of the differences you see.

That was my point, and why I said look at the hump before getting pounced on. The retrofitted 100 and the 200 are not identical. You can tell them apart, hense my "that cant be a 741" comment.
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adipasqu
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RE: Roll Royce Trent 1000 Flies!

Thu Jun 21, 2007 6:41 am

Quoting N231YE (Reply 25):
Since the upper deck of the -200 was extended 7 feet, and the early Satcom housing was eliminated, that may be the cause of the differences you see.

Where did you get this 7 ft number from? According to Boeing's own detailed specs, the upper hump on the -100 and -200 are identical:

http://www.boeing.com/commercial/airports/acaps/7471sec2.pdf

Quoting DeltaDC9 (Reply 26):
That was my point, and why I said look at the hump before getting pounced on. The retrofitted 100 and the 200 are not identical. You can tell them apart, hense my "that cant be a 741" comment.

Even if there is a 7 ft difference between the -100 and -200, how would you be able to discern that on a 225 ft long aircraft with no scale?
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deltadc9
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RE: Roll Royce Trent 1000 Flies!

Thu Jun 21, 2007 7:10 am

Quoting Adipasqu (Reply 27):
Even if there is a 7 ft difference between the -100 and -200, how would you be able to discern that on a 225 ft long aircraft with no scale?

The windows on the main deck are the ruler. The location of the little things can be determined by that.

Quoting Adipasqu (Reply 27):
Even if there is a 7 ft difference between the -100 and -200

The stretch happend on the 300, the 200 and 100 had the same length of hump. But the planes are not identical.
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adipasqu
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RE: Roll Royce Trent 1000 Flies!

Thu Jun 21, 2007 7:25 am

Quoting DeltaDC9 (Reply 28):
But the planes are not identical.

I agree that the planes are not identical, but their humps are.
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N231YE
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RE: Roll Royce Trent 1000 Flies!

Thu Jun 21, 2007 8:16 am

Quoting Adipasqu (Reply 27):
Where did you get this 7 ft number from? According to Boeing's own detailed specs, the upper hump on the -100 and -200 are identical:

My bad, the upper deck was extended 6 feet internally, and I got it from the book; Boeing 747-100/200/300/SP by Dennis Jenkins, part of the Airliner Tech series
 
imiakhtar
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RE: Roll Royce Trent 1000 Flies!

Thu Jun 21, 2007 8:17 pm

Either i missed it or RR just added it but there now is a short video of the test flight

http://www.rolls-royce.com/media/showPR.jsp?PR_ID=40493
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deltadc9
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RE: Roll Royce Trent 1000 Flies!

Thu Jun 21, 2007 10:27 pm

Quoting Adipasqu (Reply 29):
but their humps are.

Check out the bumps on the humps.
Dont take life too seriously because you will never get out of it alive - Bugs Bunny