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A350 Test Flight Official Thread Part 8

Wed Oct 30, 2013 9:45 am

Previous thread link A350 Test Flights Official Thread Part 7 (by 777ER Oct 18 2013 in Civil Aviation)
 
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KarelXWB
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RE: A350 Test Flight Official Thread Part 8

Wed Oct 30, 2013 11:23 am

Currently flying together:

> A400M testbed
> A340 testbed
> A350 testbed

Close, but no cigar http://vine.co/v/OjqeYWWpVWK
 
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RE: A350 Test Flight Official Thread Part 8

Wed Oct 30, 2013 2:20 pm

AIB89WB landed at 13:47.
Close, but no cigar http://vine.co/v/OjqeYWWpVWK
 
ap305
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RE: A350 Test Flight Official Thread Part 8

Wed Oct 30, 2013 3:04 pm

GIGI is certainly screaming along now.... 60-65 knots faster than the single aisle traffic near her on a similar altitude and heading...
 
mjoelnir
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RE: A350 Test Flight Official Thread Part 8

Wed Oct 30, 2013 5:11 pm

According to my spreadsheet the Raccoon's have flown 470 hours plain flight time and have past 500 hours of block time.
 
StTim
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RE: A350 Test Flight Official Thread Part 8

Wed Oct 30, 2013 5:26 pm

It is certainly putting in the hours today. Take off at 07:30 ish and it is now 17:30 ish and GiGi is still trundling up and down the bay of Biscay.

It will be the longest test flight so far.
 
mjoelnir
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RE: A350 Test Flight Official Thread Part 8

Wed Oct 30, 2013 5:45 pm

I have been running FR24 playback.

I see AIB9GG the last time in Toulouse at 07:43 UTC still not on the runway and than she appears near Marmande at 08:09 UTC. So I will keep in my spreadsheet 07:50 UTC as take off time.
 
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RE: A350 Test Flight Official Thread Part 8

Wed Oct 30, 2013 6:35 pm

AIB9GG landed at 18:35, adding almost 11 hours to the book.

[Edited 2013-10-30 11:58:41]
Close, but no cigar http://vine.co/v/OjqeYWWpVWK
 
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RE: A350 Test Flight Official Thread Part 8

Wed Oct 30, 2013 6:37 pm

So the combined stats for MSN1 and 3 are:

> Flying hours: 469
> Block hours: 502
> Number of flights: 98

[Edited 2013-10-30 11:58:16]
Close, but no cigar http://vine.co/v/OjqeYWWpVWK
 
mjoelnir
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RE: A350 Test Flight Official Thread Part 8

Wed Oct 30, 2013 6:50 pm

Sorry to dampen the enthusiasm GiGi landed at 18:35 UTC.
07:50 to 18:35 UTC is about 10 hours 45 minutes.
Longest flight of a Raccoon up to now.
 
ferpe
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RE: A350 Test Flight Official Thread Part 8

Wed Oct 30, 2013 7:19 pm

Thanks guys for all the work with the time keeping, we are now at 20% of the flight test program being done and there is one year to EIS, seems doable.

Evrard said on a briefing during the spring that "we now enter flight testing, that is something we know how to do" or similar. It was in the context of the challenges they saw with the supply chain producing the different sections in the new technology. What one can appreciate with Evrard and Bregier is that there is very little bull talk, when they say they are cautious that is accepted and now when they show more confidence in a phase one can start to thrust them, refreshing    .
Non French in France
 
bycac
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RE: A350 Test Flight Official Thread Part 8

Wed Oct 30, 2013 7:47 pm

To complete AIB89WB :
 
ferpe
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RE: A350 Test Flight Official Thread Part 8

Wed Oct 30, 2013 8:10 pm

Quoting bycac (Reply 11):

To complete AIB89WB :

MSN001 still carries all the tufting and the Vmu protection. At the same time a few cameras seems to have been taken off. IMO this is to have these means for upcoming tests, we know that tests with on-glued plastic ice formations shall be made. Landing tests with ice on wings is very important to do, ice can form very quickly unknowingly during landing and one want to know how the bird reacts. Does she warn and stall slowly, violently complaining about the mistreatment while gracefully descending a bit faster then usual or will she say virtually nothing, then stall asymmetrically and go down over one of the wings like a piano?   

It can seem a bit un-probable but stalling with a disturbed leading edge can be fishy, it is very hard to predict what happens. If the stall instead happens on the HTP it is even worse, stall of the HTP at landing means you have a very strong forward moment and the frame tips forward violently and is very hard to save. The same goes for start but the frame is a bit less loaded in the start config and it should be a bit less violent what happens.

So there is every reason to want to know what happens with the flow in the BIG windtunnel and how close to the edge you are sailing, that is why all these means are kept for icing trials. The number of frames which has gone down due to icing are to many   .

[Edited 2013-10-30 13:15:58]
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EPA001
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RE: A350 Test Flight Official Thread Part 8

Wed Oct 30, 2013 11:05 pm

Quoting mjoelnir (Reply 9):
Longest flight of a Raccoon up to now.

And that with the newest bird on the flight test program. They are cumulating the hours pretty quickly if they keep that up.  
 
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RE: A350 Test Flight Official Thread Part 8

Thu Oct 31, 2013 8:13 am

AIB90WB takeoff at 8:12 UTC.
 
mjoelnir
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RE: A350 Test Flight Official Thread Part 8

Thu Oct 31, 2013 8:25 am

The Raccoons are on the prowl.
AIB90WB take off at 08:11 UTC.
AIB10GG take off at 08:25. UTC.
 
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RE: A350 Test Flight Official Thread Part 8

Thu Oct 31, 2013 8:28 am

This also marks the 100th test flight of the A350 program.
Close, but no cigar http://vine.co/v/OjqeYWWpVWK
 
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RE: A350 Test Flight Official Thread Part 8

Thu Oct 31, 2013 9:34 am

And here are the takeoff pictures:


AIB10GG 31/10/2013 by A380_TLS_A350, on Flickr


AIB90WB 31/10/2013 by A380_TLS_A350, on Flickr
Close, but no cigar http://vine.co/v/OjqeYWWpVWK
 
StTim
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RE: A350 Test Flight Official Thread Part 8

Thu Oct 31, 2013 9:40 am

The picture of MSN0003 is just stunning. Hadn't notice it doesn't have the A350 name at the front of the body. Must be going to have customer logos there.
 
ferpe
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RE: A350 Test Flight Official Thread Part 8

Thu Oct 31, 2013 10:26 am

Quoting StTim (Reply 18):
The picture of MSN0003 is just stunning.

They are both stunning  , one can clearly see the flow disturbance of the nacelle and pylon and the vortex that the nacelle strake creates (the high frequency patchy pattern in the wake damp) if one goes to the higher res Flickr originals.

One can also see that the inner spoiler gaps is clearly lager then the no 2 spoiler gap. All tweaked by MSN001 during the Augusts-September high lift tests. All is apparently not frozen for the start configs (ref the recent briefing), I can imagine that the Vmu data can still be complemented (protection mat still there) and things can still find their way from these trials to tweaks angles on the slats/flaps/spoilers for start. It is not excluded that the icing trials can also bring tweaks.
Non French in France
 
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RE: A350 Test Flight Official Thread Part 8

Thu Oct 31, 2013 10:28 am

Quoting ferpe (Reply 19):
They are both stunning

Here, another one:


msn3-1 31/10/2013 by A380_TLS_A350, on Flickr
Close, but no cigar http://vine.co/v/OjqeYWWpVWK
 
ferpe
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RE: A350 Test Flight Official Thread Part 8

Thu Oct 31, 2013 10:51 am

Quoting KarelXWB (Reply 20):
Here, another one:

An absolutely great shot and worthy of a place in Airbus gallery! And of course MSN001 on top  . Great situational awareness of the photographer I must say    !

Edit: once again one can see the high pitch vortice of the nacelle strake, fantastic !  Wow!

[Edited 2013-10-31 03:55:00]
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RE: A350 Test Flight Official Thread Part 8

Thu Oct 31, 2013 11:10 am

Quoting mjoelnir (Reply 15):
AIB10GG take off at 08:25. UTC.

And back on the ground at 11:10 already.
Close, but no cigar http://vine.co/v/OjqeYWWpVWK
 
ap305
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RE: A350 Test Flight Official Thread Part 8

Thu Oct 31, 2013 11:12 am

GIGI back home at 11:10 and approached quite fast at 150kts
 
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RE: A350 Test Flight Official Thread Part 8

Thu Oct 31, 2013 12:48 pm

Quoting mjoelnir (Reply 15):
AIB90WB take off at 08:11 UTC.

Landed at 12:48.
Close, but no cigar http://vine.co/v/OjqeYWWpVWK
 
starbucks
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RE: A350 Test Flight Official Thread Part 8

Thu Oct 31, 2013 3:22 pm

AIB91WB at the holding point  
 
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RE: A350 Test Flight Official Thread Part 8

Thu Oct 31, 2013 3:24 pm

Second run for the WB today:
AIB91WB takeoff at 15:23 UTC
 
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RE: A350 Test Flight Official Thread Part 8

Thu Oct 31, 2013 3:24 pm

AIB91WB airborne at 15:24.

http://fr24.com/AIB91WB
Close, but no cigar http://vine.co/v/OjqeYWWpVWK
 
ap305
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RE: A350 Test Flight Official Thread Part 8

Thu Oct 31, 2013 6:51 pm

Landed 18:49 with another very fast approach
 
starbucks
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RE: A350 Test Flight Official Thread Part 8

Thu Oct 31, 2013 6:59 pm

Just had a look at my spreadsheet..

Amazing to see that MSN1 is able to fly every monthly "target" on its own... Even the 160hrs/month for two aircraft  Wow!
 
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RE: A350 Test Flight Official Thread Part 8

Thu Oct 31, 2013 7:02 pm

 
mjoelnir
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RE: A350 Test Flight Official Thread Part 8

Thu Oct 31, 2013 7:03 pm

The Raccoons are doing a lot of flying now. Wi Bi did 141 hours of airtime in October.
If Wi Bi is supposed to do half of the program, 1.250 hour, and keeps to a similar schedule the next month, she could be finished in six month. The program is "flying" along.
 
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RE: A350 Test Flight Official Thread Part 8

Thu Oct 31, 2013 7:20 pm

Quoting rebr (Reply 30):
Beating KarelXWB to it.

  

Quoting rebr (Reply 30):
Todays pictures of MSN1 and MSN3....

  

Quoting starbucks (Reply 29):
Amazing to see that MSN1 is able to fly every monthly "target" on its own
Quoting mjoelnir (Reply 31):
The Raccoons are doing a lot of flying now.

Yes the reliability is almost too good to be true. Fingers crossed for MSN2   
Close, but no cigar http://vine.co/v/OjqeYWWpVWK
 
ferpe
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RE: A350 Test Flight Official Thread Part 8

Thu Oct 31, 2013 8:38 pm

Quoting rebr (Reply 30):
Todays pictures of MSN1 and MSN3....

Nice pictures with an attitude in them


   UP, UP AND AWAY   


(or is it just me   )
Non French in France
 
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RE: A350 Test Flight Official Thread Part 8

Thu Oct 31, 2013 9:20 pm

Close, but no cigar http://vine.co/v/OjqeYWWpVWK
 
Aircellist
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RE: A350 Test Flight Official Thread Part 8

Thu Oct 31, 2013 9:53 pm

Quoting starbucks (Reply 29):
Amazing to see that MSN1 is able to fly every monthly "target" on its own...

Impressive indeed!

Quoting rebr (Reply 30):
Beating KarelXWB to it.

Not a small feat!
"When I find out I was wrong, I change my mind. What do you do?" -attributed to John Maynard Keynes
 
ferpe
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RE: A350 Test Flight Official Thread Part 8

Fri Nov 01, 2013 5:49 am

Quoting rebr (Reply 30):
Todays pictures of MSN1 and MSN3....

Looking at these nice pictures again they are also a good yardstick for Flaps 3 vs Flaps 2. The top one, MSN001, starts with Flaps 3 ( flap tip almost touches the air outlet on the wing fairing) and the bottom one, MSN003 with Flaps 2, just clears the step in the fairing.
Non French in France
 
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RE: A350 Test Flight Official Thread Part 8

Fri Nov 01, 2013 7:42 am

AIB11GG airborne at 07:40 UTC
 
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RE: A350 Test Flight Official Thread Part 8

Fri Nov 01, 2013 12:21 pm

AIB11GG just landed at 12:20.
Close, but no cigar http://vine.co/v/OjqeYWWpVWK
 
starbucks
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RE: A350 Test Flight Official Thread Part 8

Sat Nov 02, 2013 8:54 am

And AIB12GG is flying again  

Took off 8:48UTC
 
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RE: A350 Test Flight Official Thread Part 8

Sat Nov 02, 2013 1:34 pm

Have any of the 350's come across to the US yet or are they planning it? If so - where and when? Anybody know?
rcair1
 
mjoelnir
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RE: A350 Test Flight Official Thread Part 8

Sat Nov 02, 2013 1:47 pm

Quoting rcair1 (Reply 40):
Have any of the 350's come across to the US yet or are they planning it? If so - where and when? Anybody know?

The Raccoons have been in France airspace only up to now. the USA, I suspect, are way down the list when they start traveling abroad.
 
mjoelnir
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RE: A350 Test Flight Official Thread Part 8

Sat Nov 02, 2013 2:38 pm

Touch down AIB12GG at 14:36 UTC.
 
abba
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RE: A350 Test Flight Official Thread Part 8

Mon Nov 04, 2013 12:40 pm

Are the racoons having a resting day today? I can't find them on fr24! Or is it just me?
 
ferpe
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RE: A350 Test Flight Official Thread Part 8

Mon Nov 04, 2013 1:17 pm

Quoting abba (Reply 43):
Are the racoons having a resting day today?

I think they have a rest, there is lousy weather all over France today, look at the TAF and METAR, rain showers and up to 40kt winds:

http://www.allmetsat.com/fr/metar-taf/france.php?icao=LFBO
Non French in France
 
aviatorcraig
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RE: A350 Test Flight Official Thread Part 8

Mon Nov 04, 2013 3:23 pm

Has the either A350 taken a lightning strike yet? I know in the early test flying they were anxious it did not happen, is that still the case? Although the airframe has been designed to withstand it, maybe it would play havoc with the test equipment.

There are a few lightning discharges recording around Southern France today, maybe that's why the raccoons are no-show.
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RE: A350 Test Flight Official Thread Part 8

Mon Nov 04, 2013 3:27 pm

Quoting aviatorcraig (Reply 45):
Has the either A350 taken a lightning strike yet?

Not in flight, but MSN3 did some lightning strikes during assembly.

http://www.airbus.com/newsevents/new...with-lightning-strike-evaluations/
Close, but no cigar http://vine.co/v/OjqeYWWpVWK
 
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KarelXWB
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RE: A350 Test Flight Official Thread Part 8

Mon Nov 04, 2013 3:39 pm

Airbus confirmed the 500 test hours for the A350 program.
Close, but no cigar http://vine.co/v/OjqeYWWpVWK
 
mwhcvt
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RE: A350 Test Flight Official Thread Part 8

Mon Nov 04, 2013 4:05 pm

Quoting KarelXWB (Reply 47):

So that would be 20% of the hours required for certification completed then if I'm not mistaken...what are the big tests to be looking out for, I'm guessing hot weather, cold weather, cross wind and the water splash to be just a few of the interesting tests ahead
Must think up a new one soon, slow moving brain trying to get into gear ;)
 
ferpe
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RE: A350 Test Flight Official Thread Part 8

Tue Nov 05, 2013 5:26 am

There's a good summary of the test program from 21 Oct that I have missed somehow, saw it as a link with the MSN005 article:

http://www.flightglobal.com/news/art...tter-test-beckons-for-a350-391935/

Here some excerps:

""
MSN1 also carried out minimum-unstick tests on 26 September, during flight 57.

Airbus vice-president of flight-test regulation Hugues van der Stichel says the test, at Paris Vatry, involved accelerating the A350 to around 80kt – as quickly as possible, to maximise the available remaining runway – before reducing power and applying maximum pitch up.

The take-off is performed offset from the runway centreline, to avoid striking lights as the rear fuselage makes contact, while the pitch is not altered until the aircraft has reached sufficient height, about 300ft, to clear ground effect.

“It’s a risky test that could easily damage the aircraft,” says A350 programme chief Didier Evrard. “Fortunately we have excellent pilots.”

While MSN1 conducted the minimum-unstick take-off, MSN3 was also equipped with a tail-skid mount, as a precaution, in case it was required to perform the same test.

“We were not sure how much time it would take to get to this [point],” says Evrard, adding that the test might have needed repeating.
""

Wonder why they reduce power, is that because they would overrun Vlmu otherwise?


Further:

""
Van der Stichel says the free flutter test is the next major aerodynamic check. “We know it [will meet expectations],” he says. “We have to demonstrate it.”

Airbus is yet to perform formal fuel-burn performance tests but Evrard is confident. “There’s no reason it won’t be in line with our forecasts,” he says.
""

So no worries for the fuel burn on the aircraft anymore, the 3t overweight set them back about 1.2-1.5% but that is fixed by the engines (right now -0.5% according to Zeke and might go to -2% at EIS) and probably by aero as well, the aero guys normally keep the odd % to themselves  .
Non French in France

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