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RE: A350 Prototypes Production Thread Part 7

Thu Feb 28, 2013 3:27 am

Is it just me, or does it look rather 757-ish?

And I mean that as a compliment!  
 
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RE: A350 Prototypes Production Thread Part 7

Thu Feb 28, 2013 5:59 am

Quoting art (Reply 197):
I can understand that the nose gear is dictated by engineering considerations but is there anything to dictate the shape of the cockpit windows?

Yes.
Cost vs benefit trade-off.

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RE: A350 Prototypes Production Thread Part 7

Thu Feb 28, 2013 7:50 am

Quoting Stitch (Reply 198):
No.
Quoting astuteman (Reply 201):
Yes.

Now, now gentlemen... let's not fall out over it!


  
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RE: A350 Prototypes Production Thread Part 7

Thu Feb 28, 2013 11:09 pm

Quoting Part147 (Reply 202):
Now, now gentlemen... let's not fall out over it!

That was us agreeing. Couldn't you tell?  

Rgds
 
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RE: A350 Prototypes Production Thread Part 7

Fri Mar 01, 2013 12:06 am

Quoting ferret (Reply 195):
Quoting autothrust (Reply 196):


That is why all A350s are going to get the area around and between the cockpit windows painted black. Haven't you seen all the CGI promotion pictures?
 
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RE: A350 Prototypes Production Thread Part 7

Fri Mar 01, 2013 7:57 am

The A350 blog has a short story saying RR is shipping spare engines so that the flight test can be safely done even if FOD would hit one of the flight engines. Then they publish this rather sensational quote:

"The engines are ready and capable to go to their limits from day one, should Airbus choose to do so," says Young (RR program manager, my addition). "The program - which we're fully supporting with our initial flight-compliant engines - has a very clear aim to make sure that first flight is prior to the Paris air show."  Wow!

This would be the first person involved with the program that says something like that, I tried to verify the quote but can't find the reference flightglobal article "Based on the article “All eyes on XWB” published in FlightGlobal". Instead I found this interesting company leaflet from UTC Aerostructures ie Goodrich who makes the XWB nacelle:

http://www.goodrich.com/gr-ext-templ...0at%20Aerostructures/SKY013013.pdf

The first engine has been at their TLS facility since 16 Jan and is being equipped with flight instrumentation and being built into the the nacelle since. The second engine should be there since early Feb :

http://i298.photobucket.com/albums/mm262/ferpe_bucket/TrentXWBatUTCTLS_zps4ad5e7a4.jpg

Here a description of all the work involved in preparing the engines for MSN001:

" Waiting for the engine were all of its nacelle components. The fan cowls came from Aerostructures Riverside facility.m The thrust reversers, made in Chula Vista, stopped first at the Rolls-Royce facility in Derby UK -- where the Trent engine family is designed and manufactured -- before traveling onto Toulouse. The exhaust nozzle assemblies, meanwhile, shipped from the San Marcos, Texas site (also passing through Derby first). And the inlet cowls arrived from the Airbus plant in Saint-Nazaire, France. "


The delivery date for the completed propulsion system for MSN001 is scheduled for early March which seems to fit with MSN001 being at Station 18 now. I would guess the nacelle parts are painted when they are mounted at UTC, to paint them with an engine inside makes no sense. Then we know why the engines are not hanged for the painting, these are 10m€ pieces (in series, the first cost 10 times that or more), no point in having them in a fumy paint shop covered in plastic foil  Wow! while the guys spray paint on the nacelle outsides.
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RE: A350 Prototypes Production Thread Part 7

Fri Mar 01, 2013 9:30 am

Quoting ferpe (Reply 205):
I would guess the nacelle parts are painted when they are mounted at UTC, to paint them with an engine inside makes no sense. Then we know why the engines are not hanged for the painting

Looking at this a little bit further in your linked file I would say your guess is right  
Quote:
"We'll have a robotized moving assembly line," Didier explained. "Equipment designed to accommodate the very large size of the A350 nacelle components is in place. The expansion also includes sanding and paint booths, as well as an infrared tunnel for a rapid curing of painted nacelle components.
 
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RE: A350 Prototypes Production Thread Part 7

Fri Mar 01, 2013 9:36 am

I have no doubt that Airbus is internally aiming for a first flight before the air show. But they are not creating a hype so to the outside world they are saying "the air show is not a priority".
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RE: A350 Prototypes Production Thread Part 7

Fri Mar 01, 2013 9:42 am

I have no doubt that Airbus is internally aiming for a first flight before the air show. Post 207

If they do, we could end up with the interesting situation where the A350 is flying whilst the B787 is not!
 
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RE: A350 Prototypes Production Thread Part 7

Fri Mar 01, 2013 2:52 pm

Quoting KarelXWB (Reply 194):
I believe the first 787 in Charleston flew after 3 weeks of thorough testing.

Correct me if I'm wrong but didn't the 787 become nearly airbourne during high speed taxi tests? I'm positive I read it during the fground test campaign but can't remember if it was the 787 or another aircraft been referred to at the time.
 
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RE: A350 Prototypes Production Thread Part 7

Sat Mar 02, 2013 10:16 am

More pictures:

1) MSN001 with MSN003 in the background
http://pizzainmotion.files.wordpress.com/2013/02/msn1_and_msn3-2.jpg

2) Group hug! (where is knoxibus Big grin)
http://pizzainmotion.files.wordpress.com/2013/02/pp_25-2.jpg

3) Station 18
http://pizzainmotion.files.wordpress.com/2013/02/pp_34-2.jpg

http://pizzainmotion.files.wordpress.com/2013/02/pp_39-2.jpg

http://pizzainmotion.files.wordpress.com/2013/02/pp_31-2.jpg

http://pizzainmotion.files.wordpress.com/2013/02/pp_29-2.jpg

[Edited 2013-03-02 02:46:31]
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RE: A350 Prototypes Production Thread Part 7

Sat Mar 02, 2013 10:21 am

The aft wing body fairing is very unique.
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RE: A350 Prototypes Production Thread Part 7

Sat Mar 02, 2013 11:50 am

Quoting CCA (Reply 211):
The aft wing body fairing is very unique.

Indeed it is. Would love to see a close up on that part of the plane.  
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starbucks
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RE: A350 Prototypes Production Thread Part 7

Sat Mar 02, 2013 12:24 pm

I think I'm in love..   :P

Can't wait to see those huge Rollers on her wings and some paint...
 
a380900
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RE: A350 Prototypes Production Thread Part 7

Sat Mar 02, 2013 12:30 pm

Quoting teme82 (Reply 212):
Quoting CCA (Reply 211):
The aft wing body fairing is very unique.

Indeed it is. Would love to see a close up on that part of the plane.

Yes, it looks "simpler" that what we used to see on the A320 and A380 which looked fairly similar for an untrained eye. Does anyone know what's up with that?

Also, I got used to seeing planes without engine having dead weight hanging there to keep the wing in shape (or maybe that's what I thought it was for). Why not in this case? Because it is not necessary when it's only for a few days?
 
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RE: A350 Prototypes Production Thread Part 7

Sat Mar 02, 2013 12:55 pm

Quoting starbucks (Reply 213):
Can't wait to see those huge Rollers on her wings and some paint...

That will make a huge difference imho. And it is already a great looking airplane.  .
 
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RE: A350 Prototypes Production Thread Part 7

Sat Mar 02, 2013 12:55 pm

Quoting a380900 (Reply 214):
Also, I got used to seeing planes without engine having dead weight hanging there to keep the wing in shape (or maybe that's what I thought it was for). Why not in this case? Because it is not necessary when it's only for a few days?

If you look closely there is a square blue thing with a yellow base hanging from the pylons, i think that this is a weight

Quoting CCA (Reply 211):
The aft wing body fairing is very unique.

Looks like they have taken a leaf from F1 areodynamics about reattaching seperated airflows.
BV
 
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RE: A350 Prototypes Production Thread Part 7

Sat Mar 02, 2013 12:55 pm

Quoting a380900 (Reply 214):
Also, I got used to seeing planes without engine having dead weight hanging there to keep the wing in shape (or maybe that's what I thought it was for). Why not in this case? Because it is not necessary when it's only for a few days?

If I understand it correctly those weights are used so the plane won't tip on its tail. No idea why MSN001 does not have those weights attached but it might be an indication that the fuel tanks are filled?

Quoting BoeingVista (Reply 216):
If you look closely there is a square blue thing with a yellow base hanging from the pylons, i think that this is a weight

Well spotted  Wink

[Edited 2013-03-02 04:58:33]
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Pihero
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RE: A350 Prototypes Production Thread Part 7

Sat Mar 02, 2013 1:00 pm

Quoting teme82 (Reply 212):

Quoting CCA (Reply 211):
The aft wing body fairing is very unique.

Indeed it is. Would love to see a close up on that part of the plane.

You'll have more details in the 350 site. Click on the drawings and you'll see that Airbus have really done a good job sculpting the wing-to-body junction. See it HERE
If one rermbers the LEX (leading edge extension) that, for instance the F18 shows, it seems that they've re-invented the TEX - for "trailing edge extension " in order to reduce / diminish the effect of the turbulent airflow always present when an airfoil discontinuity occurs.
This wing is a thing of beauty. The rear view is worthy of a display in a museum.

PS : The best view of that part is on the Afriqiah pic you have at the bottom of the first page of the 350 gallery. Download it at the highhest resolution... Someone can upload it here ?

[Edited 2013-03-02 05:08:42]
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RE: A350 Prototypes Production Thread Part 7

Sat Mar 02, 2013 1:21 pm

Quoting Pihero (Reply 218):
PS : The best view of that part is on the Afriqiah pic you have at the bottom of the first page of the 350 gallery. Download it at the highhest resolution... Someone can upload it here ?


Click for full size:

http://www.airbus.com/fileadmin/media_gallery/photos/aircraft/a350%20family/a350-900/A350-900_Afriqiyah.jpg
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RE: A350 Prototypes Production Thread Part 7

Sat Mar 02, 2013 3:28 pm

Quoting ferpe (Reply 205):
This would be the first person involved with the program that says something like that

I happened to google up a report from the same series from Oct 2012 (great minds think alike?) that also said the same goal:

http://www.goodrich.com/gr-ext-templ...t%20Aerostructures/SKY10032012.pdf

Quote:

Airbus needs the podded propulsion package for flight test aircraft Number One at its final assembly line
by January." Peters said the first flight of flight test aircraft No. 1 is slated to occur sometime before the Paris Air
Show in June 2013.

It seems the unofficial goal has been thoroughly outed.

Quoting ferpe (Reply 205):
Then we know why the engines are not hanged for the painting, these are 10m€ pieces (in series, the first cost 10 times that or more), no point in having them in a fumy paint shop covered in plastic foil Wow! while the guys spray paint on the nacelle outsides.

I'll add that I once read what the completed nacelle costs and it was pretty amazing. A lot of engineering goes into them!

Quoting astuteman (Reply 201):
Cost vs benefit trade-off.
Quoting 14ccKemiskt (Reply 204):

That is why all A350s are going to get the area around and between the cockpit windows painted black. Haven't you seen all the CGI promotion pictures?

Both statements are consistent: if you want it to look cool, just throw on some black paint! In fact it may also help reduce reflected light if it was black (and that's a good cover story too!).

Quoting KarelXWB (Reply 219):
Click for full size:

Fabulous rendering. I'm thinking I might like the proportions of the -1000 a bit more, time will tell.
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RE: A350 Prototypes Production Thread Part 7

Sat Mar 02, 2013 4:36 pm

Quoting Revelation (Reply 220):
Fabulous rendering. I'm thinking I might like the proportions of the -1000 a bit more, time will tell.

Time will tell indeed. My guess is that the A350-900 will be the version with the best proportions. Just as I like the A340-500 better then the A340-600. And that is also why I like the B77L better then the B77W.  .
 
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RE: A350 Prototypes Production Thread Part 7

Sat Mar 02, 2013 4:48 pm

Quoting KarelXWB (Reply 219):
Click for full size:

Am i the only one who thinks the horizontal stabiliser looks like a fish fin?

The fuselage and wings are amazing.
Flown on: DC-9, MD-80, Fokker 100, Bae 146 Avro, Boeing 737-300, 737-400, 747-200, 747-300,747-400, 787-9, Airbus A310, A319, A320, A321, A330-200,A330-300, A340-313, A380, Bombardier CSeries 100/300, CRJ700ER/CRJ900, Embraer 190.
 
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RE: A350 Prototypes Production Thread Part 7

Sat Mar 02, 2013 5:04 pm

Quoting Pihero (Reply 218):
TEX - for "trailing edge extension

let's hope it is aerodynamically 100% ...otherwise the a/c might produce some nice soundz  
 
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RE: A350 Prototypes Production Thread Part 7

Sun Mar 03, 2013 4:24 am

The sculpturing of the wing fairing is indeed intriguing, I have seldom seen such an elaborate shaping on an airliner, perhaps on a high M (0.9 or more) business jet. Up-thread I compare the head-on view of the 350 with the 787 and it is clear the 350 wing faring is deeper, this comes from the 350 wing being larger but also having 1-2% higher relative thickness then the 787. This made me a bit concerned about the fairings drag contribution.

http://i298.photobucket.com/albums/mm262/ferpe_bucket/MSN001toP182_zpsd6decce4.jpg

Seeing the finished fairing makes this appear as very elaborately shaped to contribute to a good area ruling around the critical fuselage-wing-engines area, thus contributing to low (transonic) drag. The trick if to keep the rate of total cross section change low, thus not inducing unnecessary airflow speed increases over the already high cruise M of 0.85. One can clearly see how the engineers has made the start of the fairing as slender as possible, cutting in on the sides, then a elegant middle section with a very graceful join area and finally a more bulbous finish with that exiting blend step for the over and under wing airstreams.

It makes for a most beautiful wing to fuselage join in the process, one of the more stylish areas of the A350. Great to see this piece of advanced engineering    .


The 787 has it's stylish nose and wings/wingtips, the 350 an intriguing nose, a beautiful wing fairing and nice ti(..p)s as well  . We are a lucky bunch of aficionados   


PS sorry for not having a higher res photo to magnify from, the last photos seems to have made the way over a 350 FAL member to a friends blog to the 350 blog and finally here, they are low res all the way however. DS
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RE: A350 Prototypes Production Thread Part 7

Sun Mar 03, 2013 5:17 am

Quoting ferpe (Reply 224):
The sculpturing of the wing fairing is indeed intriguing,
Quoting ferpe (Reply 224):
Seeing the finished fairing makes this appear as very elaborately shaped to contribute to a good area ruling around the critical fuselage-wing-engines area, thus contributing to low (transonic) drag.

Is it a sound theory that the fairing is probably oversized for its current requirements but appropriately sized for the A350-1000 which is suggested to have a 6 wheel MLG?
 
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RE: A350 Prototypes Production Thread Part 7

Sun Mar 03, 2013 6:31 am

Quoting Bogi (Reply 163):

ARTF Kit, batteries included.

Kit does not contain Pilots, Engines, and Fuel.
Fuel required : Jet A, Jet A1 or similar.
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RE: A350 Prototypes Production Thread Part 7

Sun Mar 03, 2013 6:37 am

Quoting Chipmunk2307 (Reply 225):

Is it a sound theory that the fairing is probably oversized for its current requirements but appropriately sized for the A350-1000 which is suggested to have a 6 wheel MLG?

No, I would not think so. The wing fairing is made up of many small pieces and therefore easily modified in length, just make the section over the main landing gears longer and you have the A350-1000 fairing. Such a change does also not affect the area ruling as it is on the mid reasonably constant part, ie for the initial and final part you could keep the same parts (not sure A does however). The fairing will stay the same for the -800 but not the -1000.
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RE: A350 Prototypes Production Thread Part 7

Sun Mar 03, 2013 11:53 am

Quoting ferpe (Reply 227):

Thank you for that. I wasn't sure to what degree of commonality is actually kept between various models of the same plane. I would have thought you still get better volumes and cost efficiency by using the one design as opposed to having to make variations. But then I don't build planes to make a living so I could only speculate.

Cheers
 
ferpe
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RE: A350 Prototypes Production Thread Part 7

Sun Mar 03, 2013 2:20 pm

Quoting Chipmunk2307 (Reply 228):
. I wasn't sure to what degree of commonality is actually kept between various models of the same plane.

A wing fairing on a modern airliner is a lattice of access hatches and panels all attached to a metal frame, see the left and top pictures below. I also thought it would be a semi 1 piece molding until I started to follow the fairing on the A350 but it is far from it. The picture below we used up-thread when we dissected the fairing area:

http://i298.photobucket.com/albums/mm262/ferpe_bucket/A350bellyfairing.jpg

The lower right picture shows the air condition, hydraulics and fuel piping in this area. Further you have the central flap and slat/droop nose mechanisms and motors, aircond, nitro gen pacs, RAT.....

So a very busy beneath with a multitude of hatches and panels, actually one of the more crowded areas on the frame. It is where you can pass things from the engines to the rest of the frame or from front to back without having to penetrate the fuselage pressure zone and also easily get from left to right, up and down (keel bottom or fuselage floor through the MLG well) once again without having to bother about sealing the areas you pass. The final step is then a penetration of the hull if you want to pass e.g fuel to the APU or hydraulic to the tail but you only do it once, at the extreme end of the fairing.

So while it seems like a low tech cover of the wing-fuselage junction it is actually one of the more intricate and interesting areas of the frame .


Let me just add one more comment on the TEX (nice invention Pihero Big grin ), what is clear is that the aero guys want to influence the overside of the wingroot to keep the pressure gradient low in this area. They do that by letting the fairing swell onto the inner parts of the wing to keep the pressure in this area higher and thus making the transonic shock from supersonic flow to subsonic weaker. By weakening it they avoid that it beats the boundary layer to let go during cruise and causing the turbulence Pihero writes about. But then the moment of truce  Wow! appears at the end of the wing where the over wing fairing is broader then the under wing path. Solution! A step like on the best boat racer, tuned to fit the stream during cruise. In other flight regimes it creates its shedded vortices but that is not affecting trip fuel unless one gets separation all the way back on the tail in eg the climb phase. CFD should have explored that to satisfaction  .

[Edited 2013-03-03 06:37:15]

[Edited 2013-03-03 06:40:15]
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RE: A350 Prototypes Production Thread Part 7

Sun Mar 03, 2013 3:10 pm

Quoting ferpe (Reply 89):
The most honorable senator is covering some vital parts of our aeroplane but what one can see is:

@ferpe (and others  ) I've found another high-res picture of MSN001 in station 30. This one is from February 11:

http://www.eads.com/eads/int/en/news...537c0728d939.-A350+Production.html

This picture shows many details, including tooling etc.

[Edited 2013-03-03 07:13:10]
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ferpe
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RE: A350 Prototypes Production Thread Part 7

Sun Mar 03, 2013 5:05 pm

Quoting KarelXWB (Reply 230):
another high-res picture of MSN001 in station 30

It is a nice high-res picture, what one can observe there is what you point out, how extensive the scaffolding/platform build-up is compared to e.g. the Boeing production lines. Below the entrance areas back and front with the access from the elevator at the back to each level, bringing e.g. the seats to the rear cabin door. On the front platforms one goes directly from the offices to the appropriate entrance. This is all congruent with a fixed station principle:

http://i298.photobucket.com/albums/mm262/ferpe_bucket/MSN001atstation30accessplatforms_zps78d1508b.jpg

The contrast is total to the Boeing moving line philosophy with minimal scaffolding/platforms, instead relying on movable staircases and elevation loops for e.g. the seats. Here the 788 in about the same position of the FAL:



[Edited 2013-03-03 09:12:50]
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KarelXWB
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RE: A350 Prototypes Production Thread Part 7

Sun Mar 03, 2013 5:13 pm

Quoting ferpe (Reply 231):
Here the 788 in about the same position of the FAL:

And that's already an old picture with a lot of scaffolding around the wings. Later pictures shows almost no scaffolding at all:



[Edited 2013-03-03 09:15:57]
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packsonflight
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RE: A350 Prototypes Production Thread Part 7

Mon Mar 04, 2013 10:17 am

I find the picture above taken from behind interesting...

Is the red square attached to the fuselage in the tail skid position the skid pad for the min unstick speed test?

Also as other people have mentioned before, the tailcone is unusually shaped on the sides. What is the purpose of this unique layout? This configuration reduces the span of the stab, which makes the whole structure lighter, so is this only a weight saving exercise or are there some aerodynamic gains too?
 
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RE: A350 Prototypes Production Thread Part 7

Mon Mar 04, 2013 11:29 am

Quoting packsonflight (Reply 233):
the tailcone is unusually shaped on the sides. What is the purpose of this unique layout? This configuration reduces the span of the stab, which makes the whole structure lighter, so is this only a weight saving exercise or are there some aerodynamic gains too?

It's Airbus trademark area ruling on this part.
See similar pictures of the A380. The design is much simpler than for the wing-to-body fairing as the surfaces involved are simpler - it's just about the evolution of the tailplane surface ( cross sections)
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RE: A350 Prototypes Production Thread Part 7

Mon Mar 04, 2013 12:14 pm

Quoting packsonflight (Reply 233):

Is the red square attached to the fuselage in the tail skid position the skid pad for the min unstick speed test?

That would be a fair bet.

Quoting Pihero (Reply 234):
It's Airbus trademark area ruling on this part.
See similar pictures of the A380. The design is much simpler than for the wing-to-body fairing as the surfaces involved are simpler - it's just about the evolution of the tailplane surface ( cross sections)

I think an interesting design point is the flat top of the fuselage at the vertical stabiliser, it hardly tapers at all in any direction, this is very unlike the 787 or A380.
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RE: A350 Prototypes Production Thread Part 7

Mon Mar 04, 2013 1:49 pm

Can anyone tell me how high this aircraft sits compared to the 777? This baby looks tall, and I'm not talking about tail height, as that's not a good comparison. I'm talking about how high the bottom of the fuselage sits off the ground. It seems VERY tall. Anyone else get this impression?
 
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RE: A350 Prototypes Production Thread Part 7

Mon Mar 04, 2013 3:23 pm

Quoting 777222LR (Reply 236):
I'm talking about how high the bottom of the fuselage sits off the ground. It seems VERY tall. Anyone else get this impression?

From the A350 ACAP
page 2.3.0 gives the bottom of the engine at n.74m / 2.43 ft and
page 5.4.2 p 3 gives the external power receptacle at 2.58 m... Not that tall, considering the size of the airplane.
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RE: A350 Prototypes Production Thread Part 7

Mon Mar 04, 2013 6:50 pm

I've found a pictue of MSN001's cockpit as it was in October last year:


(uploaded by Alberto Garcia)

Alberto confirmed this is MSN001.

http://www.flickr.com/photos/aeroagp/8326216070/

Looks pretty complete to me.

[Edited 2013-03-04 10:53:19]
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douglasyxz
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RE: A350 Prototypes Production Thread Part 7

Mon Mar 04, 2013 8:23 pm

I'm wondering why sidestick, gear, flaps and thrust levers are covered while speed and parking brake levers are not.
 
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RE: A350 Prototypes Production Thread Part 7

Wed Mar 06, 2013 4:46 pm

A center fuselage part has been spotted in Hamburg:


(uploaded by Olivier Cabaret)

http://www.flickr.com/photos/oliviercabaret/8534626888/in/photostream/

No info about the MSN number.

[Edited 2013-03-06 08:47:06]
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RE: A350 Prototypes Production Thread Part 7

Wed Mar 06, 2013 5:09 pm

Quoting KarelXWB (Reply 240):

A center fuselage part has been spotted in Hamburg:

That section should never get anywhere near Hamburg in that level of completion, so I'd assume it's for Fatigue testing.
 
abba
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RE: A350 Prototypes Production Thread Part 7

Wed Mar 06, 2013 6:25 pm

I wonder about the funny painting on the lower part. Why is that?
 
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KarelXWB
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RE: A350 Prototypes Production Thread Part 7

Wed Mar 06, 2013 6:27 pm

Quoting overcast (Reply 241):
That section should never get anywhere near Hamburg in that level of completion, so I'd assume it's for Fatigue testing.

Sorry I had it wrong, this picture was taken in Saint-Nazaire.
What we leave behind is not as important as how we've lived.
 
kl911
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RE: A350 Prototypes Production Thread Part 7

Wed Mar 06, 2013 6:52 pm

Quoting abba (Reply 242):
I wonder about the funny painting on the lower part. Why is that?

Lol, that is no paint, it is where the wings will be attached to the fuselage  
 
abba
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RE: A350 Prototypes Production Thread Part 7

Wed Mar 06, 2013 6:59 pm

Quoting KL911 (Reply 244):
Lol, that is no paint, it is where the wings will be attached to the fuselage


Yep - the grey area is where the wing will be attached - not the funny brown area surrounding it (unless Airbus is going to put on a homogeneously huge wing on this one!)
Notice also the grey area top right of the attachment area. i do not remember to have seen that before either.

[Edited 2013-03-06 11:09:19]
 
kl911
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RE: A350 Prototypes Production Thread Part 7

Wed Mar 06, 2013 7:22 pm

Quoting abba (Reply 245):
Yep - the grey area is where the wing will be attached - not the funny brown area surrounding it (unless Airbus is going to put on a homogeneously huge wing on this one!)

If you look at the picture at post 224 you see what I mean
 
ferpe
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RE: A350 Prototypes Production Thread Part 7

Wed Mar 06, 2013 7:55 pm

Quoting KarelXWB (Reply 240):
No info about the MSN number.

I think it indeed is the fatigue test specimen for the central test unit going to IABG Erding outside Munich if I am not mistaken. Post 73 show this test item which also carries the wings, these will be attached on place as the whole thing can not be transported.

It should then be MSN5001 middle section, the unit is finished (that is why it is outside to be shipped) but does not carry any systems, just a lot of red plugs where the system items should have been. It also fits with the production order described in post 73, we know that Spirit has shipped 4 shipsets until 1 Feb this year, the forth arriving in January is now mated to the wingbox-wheel well-keelbeam and ready to go to fatigue wing join at Erding and then start the test there.

Re the brown color of the lower part of the unit, this is the part of the middle section being under the wing fairing, thus it will not be painted when the frame goes in the paint hangar. This paint/primer is therefore applied for life and has another composition then the yellowish one which shall form a base layer for the aircrafts final paint.

[Edited 2013-03-06 11:59:19]
Non French in France
 
ferpe
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RE: A350 Prototypes Production Thread Part 7

Wed Mar 06, 2013 9:00 pm

I can confirm it is the EF2 units for the fatigue tests in Erding, looking closely in the picture one can see that the belly fairing metal frames are there (but just lower ones). This intrigued me but this is as it should be. Zeke, who is in the know, has described how EF1, 2 and 3 are composed and where they will go to be tested (TLS, Erding and Hamburg), it is all in post 14 in part 4  .

A350 Prototypes Production Thread Part 4 (by srbmod Jul 13 2012 in Civil Aviation)
Non French in France
 
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KarelXWB
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RE: A350 Prototypes Production Thread Part 7

Wed Mar 06, 2013 9:18 pm

Quote:
we know that Spirit has shipped 4 shipsets until 1 Feb this year
Quoting ferpe (Reply 247):
but does not carry any systems

Spirit had delivered 4 flying middle sections and 2 non flying to Sint Nazaire until February 1. But the fact that this fuselage section is outside (= finished) and is quite empty on the inside might indicate this is indeed the fatigue unit.
What we leave behind is not as important as how we've lived.

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