SA7700
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CSeries - Flight Testing And Production Thread (Part 4)

Tue Mar 18, 2014 7:47 pm

As part 3 became quite long and in some instances slow to load for some users, part 4 is now available for discussion.

Part 3 is available here:

CSeries - Flight Testing And Production Thread (Part 3) (by SA7700 Jan 23 2014 in Civil Aviation)


Thanks and regards,

SA7700
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Quantos
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Thu Mar 20, 2014 8:28 pm

Flight test update from Rob Dewar: https://www.youtube.com/watch?v=vynMPP6pD-Y
Quantos,

I maintain the Bombardier C Series Aircraft Status sheet: https://goo.gl/HZshto
Feel free to comment on the sheet with any improvement suggestions and data update requests! Thanks to Paolo92 for his advice!
 
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golfradio
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Thu Mar 20, 2014 8:46 pm

Quoting Quantos (Reply 1):

I have got to say, visually the airplane is beautiful. The nose really looks like that of a biz jet than an airliner.
As expected the public updates are a little skinny on details and nothing new for any one that follows the program. I am just waiting to hear if FTV3 is getting the full FBW version now or not.
Bring back the old site.
 
ssteve
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Fri Mar 21, 2014 7:51 pm

Interesting update here:
http://airinsight.com/2014/03/21/bom...er-investor-day-aerospace-summary/

Quote:
During the Q&A session, Guy clarified that the fly-by-wire system has indeed been operating on the aircraft, and that direct mode is used for flight testing because the “normal” mode, which prohibits certain actions by pilots, would, for example not permit the stall and unusual attitude tests that are currently being completed. He emphasized that normal mode is installed and running on CIASTA, the iron-bird test machine, and will be fully installed on the test fleet soon to enable testing of the normal mode, once the other required tests are completed. With direct mode, the test pilot is in full control of the aircraft, without the normal mode restrictions in place.

Some great slides, too.
 
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STT757
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Fri Mar 21, 2014 7:56 pm

Quoting golfradio (Reply 2):
I have got to say, visually the airplane is beautiful

I agree, the C Series and A350 are sharp looking aircraft. Hoping UA will order the C-series to replace their former 735s and 733s.
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SPQR
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Sun Mar 23, 2014 5:06 pm

http://www.fliegerfaust.com/cseries-...tter-higher-speeds--479085418.html

FTV1 getting sensors installed for high speed flutter testing.
 
mastermis
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Wed Mar 26, 2014 3:10 pm

Looks like the Porter order may in jeopardy, although I don't think anyone ever thought this was definite win for Bombardier.

http://www.thestar.com/news/city_hal..._and_island_airport_expansion.html

[Edited 2014-03-26 08:18:32]
 
YYZYYT
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Wed Mar 26, 2014 5:43 pm

Quoting mastermis (Reply 6):
Looks like the Porter order may in jeopardy, although I don't think anyone ever thought this was definite win for Bombardier.


I confess that I wince when I hear the media describe the expansion idea as something backed by Mayor Ford (he is not the only one - but opponents go out of their way to associate the idea with Ford's name, as proof that this is a bad idea).

As for the actual vote yesterday... this has always been very political, and there is a municipal election coming. So enter Ford who (with his typical subtlety) tries to ram a vote through before it is ready, so that he can make "campaign style speech" (to quote the article) proving that he is against "red tape".

And we can expect more rhetoric on this issue in the coming weeks and months. Two days ago, the local radio coverage had a councilor on who was explaining why the expansion was already dead, no chance, destined to fail, widespread opposition, council was going to kill it, etc...

What happened yesterday is a cautious step forward. The City is proceeding with the necessary studies (including environmental review, traffic study etc), which are real concerns that need to be dealt with. Note that the article also quotes one of the real proponents of the expansion (the deputy Mayor) who opposed Ford's motion. He knows fully well that the proposal has no chance of passing council until the work has been done.

And in many ways it is best if the decision is delayed until after the rhetoric of the upcoming election passes.
 
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Wed Mar 26, 2014 6:39 pm

Quoting YYZYYT (Reply 7):
And in many ways it is best if the decision is delayed until after the rhetoric of the upcoming election passes.

Just to state the obvious, the delay does throw a further wrench into Porter's attempted efforts to go public and allow the initial investors to cash out.
Nationalism is an infantile disease. It is the measles of mankind. - A. Einstein
 
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Quantos
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Wed Mar 26, 2014 9:46 pm

I just saw FTV1 fly low over my house; first time I've actually seen it for real! I must say, I saw it more than I heard it. This thing is crazy silent.

Also, there was a NOTAM no-fly zone over YMX today. FTV2 flew three times (including a ~1h30 flight and two under ten minutes short hops), while FTV1 flew once.
Quantos,

I maintain the Bombardier C Series Aircraft Status sheet: https://goo.gl/HZshto
Feel free to comment on the sheet with any improvement suggestions and data update requests! Thanks to Paolo92 for his advice!
 
rikkus67
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Wed Mar 26, 2014 10:55 pm

WIsh I was there with you Quantos! How is the noise level compared to a typical turboprop?
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Quantos
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Thu Mar 27, 2014 10:42 am

Quoting rikkus67 (Reply 10):
WIsh I was there with you Quantos! How is the noise level compared to a typical turboprop?

I can't be certain in comparison to a turboprop (not many flying around YMX), but what struck me the most is the pitch, especially in comparison to other turbofans, but probably also in comparison to turboprops. It's much lower than I thought it would be. That alone is a game changer in my opinion.
Quantos,

I maintain the Bombardier C Series Aircraft Status sheet: https://goo.gl/HZshto
Feel free to comment on the sheet with any improvement suggestions and data update requests! Thanks to Paolo92 for his advice!
 
YXwatcherMKE
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Sun Mar 30, 2014 2:39 am

Is there any chance that BBD would send one of the C-series FTV's maybe FTV4 to the EAA Airventure in OSH this year since it is and would still be an Experimental Aircraft at the time of the show. After all Boeing sent the 788 and Airbus the A380 to the show, I think it would be a perfect time for BBD to show off the plane to the flying public. What do you readers think?
I miss the 60's & 70's when you felt like a guest on the plane not cattle like today
 
queb
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Sun Mar 30, 2014 12:19 pm

A CS100 will be at FARN 14 for sure (confirmed by BBD), maybe Oshkosh too.
 
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Wingtip1005
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Sun Mar 30, 2014 9:34 pm

Quoting queb (Reply 13):
A CS100 will be at FARN 14 for sure

Fingers crossed I can get to FARN and see it again! I was on a several working parties to Mirabel from Belfast and got to see the final product and first flight.
Intelligence is the ability to adapt to change
 
JoeCanuck
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Mon Mar 31, 2014 12:15 am

Quoting queb (Reply 13):

Oshkosh is pretty close to the flightpath from Wichita to Montreal. A few years ago I saw the 787 at Oshkosh....it was a huge draw.
What the...?
 
jalarner
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Mon Mar 31, 2014 4:49 pm

http://www.aex.ru/docs/3/2014/3/31/2009/

Nothing too new in the article, but an interesting read with Google translate.

Jamie
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Paolo92
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Fri Apr 04, 2014 6:58 pm

FTV2 was transferred yesterday to McKinley Climatic Laboratory for all-weather tests.
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KarelXWB
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Fri Apr 04, 2014 7:02 pm

Busy times for the Florida laboratory. First the 787-9, now the CSeries and next month the A350.
Close, but no cigar http://vine.co/v/OjqeYWWpVWK
 
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Quantos
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Fri Apr 04, 2014 10:14 pm

Sylvain Faust is reporting that FTV1 landed today using normal FBW mode. I must say I'm a bit lost concerning the status of normal FBW flights, though.
Quantos,

I maintain the Bombardier C Series Aircraft Status sheet: https://goo.gl/HZshto
Feel free to comment on the sheet with any improvement suggestions and data update requests! Thanks to Paolo92 for his advice!
 
YXwatcherMKE
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Sat Apr 05, 2014 4:32 am

Quoting Quantos (Reply 19):
I must say I'm a bit lost concerning the status of normal FBW flights, though.

Is that you are concerned or is Faust is concerned? And if it is your personally why are you concerned?

[Edited 2014-04-04 21:33:09]
I miss the 60's & 70's when you felt like a guest on the plane not cattle like today
 
YYZYYT
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Sat Apr 05, 2014 2:24 pm

Quoting YXwatcherMKE (Reply 20):
Quoting Quantos (Reply 19):
I must say I'm a bit lost concerning the status of normal FBW flights, though.


Is that you are concerned or is Faust is concerned? And if it is your personally why are you concerned?

I read the comment differently, i.e., that he "is lost REGARDING the status of normal FBW flights", not that he is "concerned"....

And I see what Quants means - there has been very little posted here over the last few days. I presume (hope???) that this is a because it is no longer newsworthy and novel that a CSeries FTV is actually flying, and NOT because they have been parked.

Does anyone have an update regarding the status of the test program (including the extent to which normal FBW has been used)?
 
argonaught
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Mon Apr 07, 2014 9:39 am

How many active FTV's do we have now?
 
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Quantos
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Mon Apr 07, 2014 10:46 am

Quoting YYZYYT (Reply 21):
I read the comment differently, i.e., that he "is lost REGARDING the status of normal FBW flights", not that he is "concerned"....

And I see what Quants means - there has been very little posted here over the last few days. I presume (hope???) that this is a because it is no longer newsworthy and novel that a CSeries FTV is actually flying, and NOT because they have been parked.

Exactly, I just haven't followed the news concerning the test flights this past few weeks, so I was a bit lost as they have in fact flown quite a bit lately. It's hard to keep track of it all with multiple FTVs.

Quoting argonaught (Reply 22):

How many active FTV's do we have now?

As for the status of the flights:

FTV1: Back in Mirabel, last flown yesterday for its 50th flight, which was 3h38 long. It was CSeries' 81st flight total. From what Sylvain Faust reports, it has starting flying at least partially (bit unclear on that front) in normal mode.
FTV2: Flew last week to McKinley Climatic Laboratory for temperature testing.
FTV3: In Wichita, hasn't flown a whole lot lately, as far as I know. I believe that both FTV1 and FTV2 did have a maintenance performed while in Wichita, which grounded both planes for some time. Perhaps it is undergoing the same maintenance now.
FTV4: Has been seen online at Mirabel. First flight is a bit of an unknown. Sylvain Faust believes it should be 2nd or 3rd week of April (grain of salt alert there).
Quantos,

I maintain the Bombardier C Series Aircraft Status sheet: https://goo.gl/HZshto
Feel free to comment on the sheet with any improvement suggestions and data update requests! Thanks to Paolo92 for his advice!
 
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KarelXWB
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Mon Apr 07, 2014 9:06 pm

FTV2 at the McKinley Climatic Laboratory in Florida:

http://pbs.twimg.com/media/BkpchICCcAAW8kg.jpg:large

http://twitter.com/sylvainfaust/status/453276436657238016
Close, but no cigar http://vine.co/v/OjqeYWWpVWK
 
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KarelXWB
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Wed Apr 09, 2014 10:16 pm

Close, but no cigar http://vine.co/v/OjqeYWWpVWK
 
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KarelXWB
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Wed Apr 16, 2014 11:36 am

Patrick Cardinal made a nice shot of FTV4:

http://www.flickr.com/photos/patcard/13803902314/

Bombardier also published a set photos of FTV2 in Florida:

http://shar.es/T5pbW
Close, but no cigar http://vine.co/v/OjqeYWWpVWK
 
YYZYYT
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Wed Apr 16, 2014 5:51 pm

Quoting KarelXWB (Reply 26):
Bombardier also published a set photos of FTV2 in Florida:

http://shar.es/T5pbW

ironic: i-ro-nic [ayh-ron-ik], adv: the opposite of what was intended or expected, incongruous; an example of human folly or inconsistency. eg. FTV2, after being produced in Montreal, is sent to Florida for "cold climate" testing.
 
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Quantos
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Fri Apr 18, 2014 4:23 pm

FTV1 apparently now has flutter sensors on its wings and stabilizers: http://www.fliegerfaust.com/cseries-...ently-added-flutter-515483895.html
Quantos,

I maintain the Bombardier C Series Aircraft Status sheet: https://goo.gl/HZshto
Feel free to comment on the sheet with any improvement suggestions and data update requests! Thanks to Paolo92 for his advice!
 
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Revelation
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Fri Apr 18, 2014 4:30 pm

Quoting YYZYYT (Reply 27):
FTV2, after being produced in Montreal, is sent to Florida for "cold climate" testing.

I am definitely left of center politically, but it has to be said that only the US government would put a cold climate lab in Florida! 
Inspiration, move me brightly!
 
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Quantos
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Fri Apr 18, 2014 6:18 pm

To be fair, correct me someone if I'm wrong, but McKinley can both lower temperature as well as increase it dramatically. Either way, one of the two wouldn't make sense regardless of its location.
Quantos,

I maintain the Bombardier C Series Aircraft Status sheet: https://goo.gl/HZshto
Feel free to comment on the sheet with any improvement suggestions and data update requests! Thanks to Paolo92 for his advice!
 
fridgeguy
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Mon Apr 21, 2014 7:46 pm

I have happily been following C Series flight tests on flightradar 24 using callsignes BBA 501 BBa502 and so on, but have not been able to pick any of them up for about 3 weeks now .
I am picking up other bba planes by simply entering bba into the filter but no C series. Have the call signs changed ? Am I missing something ? Any help would be appreciated
 
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Quantos
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Mon Apr 21, 2014 8:36 pm

You're not alone; I haven't been able to see them either. Perhaps they've changed something.
Quantos,

I maintain the Bombardier C Series Aircraft Status sheet: https://goo.gl/HZshto
Feel free to comment on the sheet with any improvement suggestions and data update requests! Thanks to Paolo92 for his advice!
 
YXwatcherMKE
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Tue Apr 22, 2014 4:36 am

Quoting Quantos (Reply 32):
u're not alone; I haven't been able to see them either. Perhap

Agreed!!! I had great connection like "Fridgeguy" was using the bba501, bba502 & bba503 I had 5 or 6 flights for 502 and 3 for 501 & 503 then nothing. All on the same day. What gives? If someone knows what happened I too would like the new "ID" code. PLEASE!!!
I miss the 60's & 70's when you felt like a guest on the plane not cattle like today
 
BoeingVista
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Tue Apr 22, 2014 6:13 am

Quoting SPQR (Reply 5):
FTV1 getting sensors installed for high speed flutter testing.

So are we moving towards aceptence that flutter has been an issue with the C-Series? Seven months on from first flight and still investigating flutter and the flight envelope does not sound like normal flight test progression to me.
BV
 
JoeCanuck
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Tue Apr 22, 2014 9:49 pm

Quoting BoeingVista (Reply 34):


Testing for flutter doesn't necessarily indicate flutter problems.

It's still early in the program gauging by flight hours. The planes total less than 200 flight test hours thus far, so flutter testing will go on for some time yet. Flutter will be monitored for the entire duration of the flight test program.

The 748 flutter problems with the gear doors and tail didn't show up right away. The gear doors were a fairly quick fix but the tail tank was off limits until after the aircraft was certified...which also goes to show that flutter isn't necessarily a show stopper.

It make sense that at least one FTV is fitted out with dedicated flutter sensors.
What the...?
 
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Paolo92
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Wed Apr 23, 2014 5:42 pm

Hi guys,
little update on flight testing: all FTVs (except FTV4) are no longer seen on websites like flightradar24 because Bombardier disabled the GPS position reporting via ADS-B, so these kind of public website do not show the plane's position anymore.
Hence, it became difficult to monitor the test fleet.

Anyway, here's the air-time update:
FTV1 flew 124h and is flying now (over FL400), currently focused on flutter tests and related certification
FTV2 flew 55h, currently at the McKinley climatic laboratory for all-weather testing
FTV3 flew circa 24h, based in Wichita for avionics/systems testing
FTV4 is awaiting its flight permit from Transport Canada

Regards,
Paolo
Each evening, stars come out their daylight hiding places... But one of those, will be my wingtip, passing over...
 
JoeCanuck
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Wed Apr 23, 2014 10:14 pm

Quoting Paolo92 (Reply 36):

I thought the tracking was based on ATC radar and transponder signals, not gps.
What the...?
 
Aircellist
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Thu Apr 24, 2014 3:42 am

Quoting Paolo92 (Reply 36):
little update on flight testing: all FTVs (except FTV4) are no longer seen on websites like flightradar24 because Bombardier disabled the GPS position reporting via ADS-B, so these kind of public website do not show the plane's position anymore.

I'd guess the comparison with the clockwork A350 was too hard to bear…
"When I find out I was wrong, I change my mind. What do you do?" -attributed to John Maynard Keynes
 
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Thu Apr 24, 2014 7:57 am

Quoting JoeCanuck (Reply 37):
I thought the tracking was based on ATC radar and transponder signals, not gps.

From what I understood, websites like flightradar24 obtain data from private users around the world, which have so-called "ADS-B receivers".
These stations receive the transponder's mode S signal which includes several data and info, among these the gps coordinates, which are used to plot the plane's position on the map.
Radar controllers use primary radar coupled with secondary (transponder) radar so that the dots on the screen (from the primary radar) get assigned a callsign with the related transponder info.
Mode S transponder is an advanced one: most smaller planes still use mode A+C (just ident and flight level shown to controller).
So disabling the gps coordinates "hides" the plane's position on public websites, but not to ATC.
Each evening, stars come out their daylight hiding places... But one of those, will be my wingtip, passing over...
 
BoeingVista
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Thu Apr 24, 2014 8:14 am

Quoting JoeCanuck (Reply 35):
The 748 flutter problems with the gear doors and tail didn't show up right away.

Pretty sure the gear doors full flaps flutter problem showed up early on.

Quoting JoeCanuck (Reply 35):

It's still early in the program gauging by flight hours. The planes total less than 200 flight test hours thus far, so flutter testing will go on for some time yet. Flutter will be monitored for the entire duration of the flight test program.

I hear you about flight hours but the FT program has been on going for 7 months now, they should have cleared the normal flight envelope by now and if they are adding specialised flutter sensors at this stage then there would have to be a reason for it.

Quoting Aircellist (Reply 38):
I'd guess the comparison with the clockwork A350 was too hard to bear…

Yup, if things are going right nobody cares whos watching..
BV
 
StTim
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Thu Apr 24, 2014 8:16 am

Won't disabling the GPS disable the anti collision functions (TCAS?)?
 
JoeCanuck
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Thu Apr 24, 2014 10:55 am

Quoting BoeingVista (Reply 40):

Flutter can't be too bad...FTV1 is conducting flights above 40,000' I'd think that if there were serious flutter issues with the CSeries, it would have been leaked by now...but so far, the only place I've seen any reference to it being a potential problem is A.Net....not that it isn't a possibility.

It seems at least as likely to me that the delays on expanding the flight envelopes are the software issues that have been blamed so far.

After all, BBD does have a lot of experience building a wide variety of aircraft but precious little with FBW.

Quoting StTim (Reply 41):

I always thought TCAS works off of the mode C transponders, not GPS.

Quoting Paolo92 (Reply 39):

I was under the impression that these live sites used mode C returns from ATC.
What the...?
 
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mad99
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Thu Apr 24, 2014 11:09 am

Quoting JoeCanuck (Reply 42):
It seems at least as likely to me that the delays on expanding the flight envelopes are the software issues that have been blamed so far.

They had a door seal issue months ago and that kept the testing low.
 
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Quantos
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Thu Apr 24, 2014 11:30 am

I don't know if we can assume there are flutter issues just because sensors have been added now. It's a bit of a stretch to make this assumption. As the plane has started flying over FL400, we could just as easily assume that they want to make sure their previous flutter-related data is respected at such altitude, which could require more precise sensors. Otherwise, perhaps flutter data must be acquired using specific sensors for certification?

These are just very wild guesses, and I'm far from being an expert, but essentially my point is that we can't really assume that a test device added to any test plane necessarily means that there are issues with the data point in question.

[Edited 2014-04-24 04:31:33]
Quantos,

I maintain the Bombardier C Series Aircraft Status sheet: https://goo.gl/HZshto
Feel free to comment on the sheet with any improvement suggestions and data update requests! Thanks to Paolo92 for his advice!
 
jalarner
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Thu Apr 24, 2014 12:00 pm

Great to see the altitude increase....so what about faster speeds?
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RE: CSeries - Flight Testing And Production Thread (Part 4)

Thu Apr 24, 2014 12:06 pm

Quoting JoeCanuck (Reply 42):
I was under the impression that these live sites used mode C returns from ATC.

AFAIK FlightAware uses FAA data streams as a primary source, and has ADS-B as a secondary source.

FR24 is much more explicit about what they use:

Quote:

The technology we use to receive flight information from aircraft is called ADS-B. Roughly 60% of all passenger aircraft around the world are equipped with an ADS-B transponder. However, this percentage will continue to grow. Read more about the technology behind Flightradar24.

The majority of the data displayed on Flightradar24.com and in our apps is gathered through a network of 500+ ADS-B receivers around the world. To improve our service we are always looking for people willing to contribute data to us. Click here to find out how you can help us increase Flightradar24's global coverage.

In addition to ADS-B data, we also display data from the Federal Aviation Administration (FAA). This data provides full coverage of the airspace above the United States and Canada. However, this data is slightly delayed (up to 5 minutes) due to FAA regulations. Because of this delay, the planes generated from FAA data are of a different color (orange) than the planes generated from real-time data (yellow).

Flightradar24 would not exist if it weren't for our data feeders. As a thank you, they all get access to a premium version of Flightradar24.com.

We are also very grateful to the volunteers that update the airplane and route databases every day.

Ref: http://www.flightradar24.com/about

That page has a cute section on how it all came about:

Quote:

Flightradar24 started as a hobby project in 2006 when two Swedish aviation geeks decided to build a network of ADS-B receivers in Northern and Central Europe. In 2009 we opened up the network, and made it possible for anyone with an ADS-B receiver to upload data to the network. Many parts of the world were quickly covered, but the quest to provide global ADS-B coverage is still ongoing. Hopefully with your support, we will get there.

And http://www.flightradar24.com/increase-coverage shows you how you can contribute more data.
Inspiration, move me brightly!
 
Aircellist
Posts: 1242
Joined: Fri Oct 08, 2004 8:43 am

RE: CSeries - Flight Testing And Production Thread (Part 4)

Thu Apr 24, 2014 12:12 pm

Well… BBD are keeping their cards close to their chest, and have been doing so since the very beginning of that program.
"When I find out I was wrong, I change my mind. What do you do?" -attributed to John Maynard Keynes
 
SPREE34
Posts: 1560
Joined: Tue Jun 29, 2004 6:09 am

RE: CSeries - Flight Testing And Production Thread (Part 4)

Thu Apr 24, 2014 10:49 pm

Quoting StTim (Reply 41):
Won't disabling the GPS disable the anti collision functions (TCAS?)?

No. TCAS uses Mode3C replies.
I don't understand everything I don't know about this.
 
JoeCanuck
Posts: 3939
Joined: Mon Dec 19, 2005 3:30 am

RE: CSeries - Flight Testing And Production Thread (Part 4)

Fri Apr 25, 2014 1:58 am

Quoting Revelation (Reply 46):

I know google is supposed to be my friend...but it's not, more often than not, so thanks...that really clears things up for me.

Finding specific, detailed information about something not Kardashian related can be like draining a swamp with a spoon.

Quoting Aircellist (Reply 47):

...which is why one theory about the CSeries, (flutter, for example), is about as plausible as the next.

[Edited 2014-04-24 19:04:00]
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