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Search: Posts Made By: AlphaZuluRomeo
Showing results 1 to 35 of 52
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Forum: Tech Log
27th Oct 2011, 12:32
Replies: 1,688
Views: 406,253
Posted By AlphaZuluRomeo

@ RetiredF4 Side note: depends where... :E...

@ RetiredF4

Side note: depends where... :E Agreed with the overall :ok:

@ aerobat77
No offence intended, Sir, but in two of your previous posts you should replace "when" [EN] (time notion) by...
Forum: Tech Log
25th Oct 2011, 08:20
Replies: 1,688
Views: 406,253
Posted By AlphaZuluRomeo

jcjeant, as the BEA is still working on the case,...

jcjeant, as the BEA is still working on the case, you cannot write that just now IMO. ;)

If nothing is said about the SS after the final report is published, then you can
- think that the...
Forum: Tech Log
21st Oct 2011, 12:49
Replies: 1,688
Views: 406,253
Posted By AlphaZuluRomeo

I have no definite answer on "should we have an...

I have no definite answer on "should we have an AoA meter in every liner's cockpit ?"
I don't think "just" adding an AoA meter is a good idea. AF447's crew apparently didn't react on...
Forum: Tech Log
20th Oct 2011, 11:25
Replies: 1,688
Views: 406,253
Posted By AlphaZuluRomeo

I would not take that as an indication that the...

I would not take that as an indication that the PFD(s?) was/were wrong. Indeed, if the CPT was seated in the 3rd seat, the standby horizon was the most "accessible" for him.

Switching to "#3"...
Forum: Tech Log
15th Oct 2011, 14:32
Replies: 1,688
Views: 406,253
Posted By AlphaZuluRomeo

Thanks, Dani, could be that. Anyone knows the...

Thanks, Dani, could be that. Anyone knows the frequency of that parameter on the DFDR? If 2 seconds or more, Dani could have the answer. If less... the lesser, the more improbable. (see below, this...
Forum: Tech Log
14th Oct 2011, 22:18
Replies: 1,688
Views: 406,253
Posted By AlphaZuluRomeo

OK, thanks, let's say the hypothesis was null &...

OK, thanks, let's say the hypothesis was null & void, because the bird wasn't present (selected) at the "beginning" (02:10:05).

I'm still unconfortable with what I see as a contradiction...
Forum: Tech Log
14th Oct 2011, 15:47
Replies: 1,688
Views: 406,253
Posted By AlphaZuluRomeo

Lyman, if your questions above are related to my...

Lyman, if your questions above are related to my previous post, I'm sorry, I cannot see the logic you pursue, nor understand the said questions.
Forum: Tech Log
14th Oct 2011, 15:29
Replies: 1,688
Views: 406,253
Posted By AlphaZuluRomeo

OK, digged out a bit, here is the hypothesis (in...

OK, digged out a bit, here is the hypothesis (in french) the source being a comment (http://henrimarnetcornus.20minutes-blogs.fr/archive/2011/10/06/af-447-confusion.html#comments) on HMC's blog.

...
Forum: Tech Log
14th Oct 2011, 10:39
Replies: 1,688
Views: 406,253
Posted By AlphaZuluRomeo

GerardC, The thing is, the hypothesis was the...

GerardC,
The thing is, the hypothesis was the first I read & think "hey, I see the logic".
I didn't had time to check all that (besides not being knowledgeable enough to have all answers), and...
Forum: Tech Log
14th Oct 2011, 09:23
Replies: 1,688
Views: 406,253
Posted By AlphaZuluRomeo

I'm not convinced... - not clear call of the...

I'm not convinced...
- not clear call of the procedure
- the said procedure asks for pitch 10/15° and power TOGA when low level, the crew initially just adapted pitch (and thrust to CLB)

I've...
Forum: Tech Log
14th Oct 2011, 09:12
Replies: 1,688
Views: 406,253
Posted By AlphaZuluRomeo

jcjeant, I disagree. I'm OK with the BEA...

jcjeant,

I disagree. I'm OK with the BEA policy, here.
If a full transcription was officially released, the "doubters" would then ask for the audio. If the audio was released, the "serious...
Forum: Tech Log
13th Oct 2011, 13:16
Replies: 1,688
Views: 406,253
Posted By AlphaZuluRomeo

alexd10, the book doesn't contain a "full"...

alexd10, the book doesn't contain a "full" transcription.
=> BEA is right to describe it as "a part of a literal transcription of the Cockpit Voice Recorder".

The book is not a "revolution" in my...
Forum: Tech Log
12th Oct 2011, 12:43
Replies: 1,688
Views: 406,253
Posted By AlphaZuluRomeo

Yes, and that was reported. I assume: no change...

Yes, and that was reported. I assume: no change reported, then no change occured in vertical mode. You assume differently, that's your call. :)
Let's hope for more traces in the final report.

...
Forum: Tech Log
10th Oct 2011, 10:25
Replies: 1,688
Views: 406,253
Posted By AlphaZuluRomeo

Ahem... BEA's interim #3, §1.11.2 ;) No trace...

Ahem... BEA's interim #3, §1.11.2 ;)
No trace indeed, but unequivocally written : "Le vol est effectué sur la route prévue en modes ALT CRZ / NAV."
"The flight followed the route envisaged in modes...
Forum: Tech Log
6th Oct 2011, 09:45
Replies: 1,688
Views: 406,253
Posted By AlphaZuluRomeo

[/quote] Didn't it? BEA's interim...

[/quote]

Didn't it?

BEA's interim report #3, CVR transcript



“I’ve lost VSI” is just another translation for “j’ai plus de vario là”.
Forum: Tech Log
5th Oct 2011, 23:21
Replies: 1,688
Views: 406,253
Posted By AlphaZuluRomeo

airtren We're on synch indeed. :) Except...

airtren
We're on synch indeed. :)
Except perhaps re-the beauty of maths, but it's a religious matter for me (joking).:p

jcjeant
How interesting! Let's hope the "technical constraints" may be...
Forum: Tech Log
4th Oct 2011, 21:17
Replies: 1,688
Views: 406,253
Posted By AlphaZuluRomeo

Thanks for confirming it :) :confused:...

Thanks for confirming it :)


:confused: :confused:
As for the maths: I'm sorry, I'm not fond of maths, I must say. Logic is enough to me :)
For that reason, I won't comment on your formula.
...
Forum: Tech Log
4th Oct 2011, 10:01
Replies: 1,688
Views: 406,253
Posted By AlphaZuluRomeo

CONF iture Indeed, "possibly" as in "not...

CONF iture
Indeed, "possibly" as in "not demonstrated, and will not be either way". :D

airtren
the "gaining of speed" is still important. It is part of the solution/recovery, and the change of...
Forum: Tech Log
3rd Oct 2011, 13:13
Replies: 1,688
Views: 406,253
Posted By AlphaZuluRomeo

Indeed. And What strikes me by reading the same...

Indeed. And What strikes me by reading the same sentence is that a situation possibly unrecoverable is not clearly defined. Why would a situation be unrecoverable?
- Because the plane cannot recover...
Forum: Tech Log
3rd Oct 2011, 10:02
Replies: 1,688
Views: 406,253
Posted By AlphaZuluRomeo

Push the stick, thrust idle => dive. Trade...

Push the stick, thrust idle => dive.
Trade height for speed, while reducing AoA.
Then recover from the dive.

Why the rudder? Best to keep your aircraft symetrical, a spin is worse than a stall...
Forum: Tech Log
12th Sep 2011, 16:40
Replies: 1,688
Views: 406,253
Posted By AlphaZuluRomeo

Yes, but perhaps it should be a good idea to have...

Yes, but perhaps it should be a good idea to have a stall warning, even if the IAS is NCD / < 60kt.
If you have a NCD / invalid AoA... well... I don't know. But that's not the point.


I totally...
Forum: Tech Log
11th Sep 2011, 18:13
Replies: 1,688
Views: 406,253
Posted By AlphaZuluRomeo

This topic was already discussed a few pages back...

This topic was already discussed a few pages back (http://www.pprune.org/tech-log/460625-af-447-thread-no-6-a-11.html#post6651335). From the FCOM:
When angle of attack protection is active, THS is...
Forum: Tech Log
8th Sep 2011, 11:07
Replies: 1,688
Views: 406,253
Posted By AlphaZuluRomeo

Already said, but anyway... I've never seen...

Already said, but anyway...

I've never seen an official (manufacturer's) document which stated :
If IAS < 60kt then we're on ground then stall warning should be off.

I fully concur with...
Forum: Tech Log
7th Sep 2011, 00:05
Replies: 1,688
Views: 406,253
Posted By AlphaZuluRomeo

@ mm43 : oops, my mistake, then. The english...

@ mm43 : oops, my mistake, then. The english version was first, for once.
Anyway, thanks for pointing it :)
Forum: Tech Log
6th Sep 2011, 09:53
Replies: 1,688
Views: 406,253
Posted By AlphaZuluRomeo

Me again (sorry) What seems, for now, more...

Me again (sorry)

What seems, for now, more linked to AF447 is the publication yesterday (sept the 5, 2011) by the BEA of the report of the work group on the triggered transmission of flight data...
Forum: Tech Log
6th Sep 2011, 09:43
Replies: 1,688
Views: 406,253
Posted By AlphaZuluRomeo

I must disagree, Sir. - no speed data loss...

I must disagree, Sir.

- no speed data loss on this A340, or so it seems so far
- on the other hand, no overspeed alarm on AF447 (which would explain the climb) (and I know that the CVR mentionned...
Forum: Tech Log
2nd Sep 2011, 12:11
Replies: 1,688
Views: 406,253
Posted By AlphaZuluRomeo

Well, perhaps A33Zab (or other knowledgable...

Well, perhaps A33Zab (or other knowledgable people) may help here. I would have thought that that kind of ECAM would also trigger an ACARS message, for the maintenance teams to check the vanes after...
Forum: Tech Log
31st Aug 2011, 13:32
Replies: 1,688
Views: 406,253
Posted By AlphaZuluRomeo

Yes. From the FCOM: No mention of what is...

Yes.
From the FCOM:

No mention of what is to be displayed when the barometric value is unavailable in the FCOM. I thought BEA wrote something about that in one of its interim reports, but cannot...
Forum: Tech Log
31st Aug 2011, 10:37
Replies: 1,688
Views: 406,253
Posted By AlphaZuluRomeo

I disagree, here. Had they followed the same...

I disagree, here.
Had they followed the same drill as in their sim check (Rio depature) they would have :
- indeed seeked for 15° pitch attitude
- but also set TOGA at the same time.

TOGA was...
Forum: Tech Log
26th Aug 2011, 21:50
Replies: 1,688
Views: 406,253
Posted By AlphaZuluRomeo

Lyman: Q1: It was not a quote, but a...

Lyman:
Q1: It was not a quote, but a re-phrasing. The purpose was to check if I understood what you were seeking for. Based on your last post, it seems not, but I still don't see where you're going....
Forum: Tech Log
26th Aug 2011, 20:36
Replies: 1,688
Views: 406,253
Posted By AlphaZuluRomeo

@ Lyman (re: #478) I understand your first...

@ Lyman (re: #478)

I understand your first question as this:
"If the THS had (for whatever reason) remained in its previous (cruise) position of 3° NU (afther the aircraft stalled), and...
Forum: Tech Log
26th Aug 2011, 12:54
Replies: 1,688
Views: 406,253
Posted By AlphaZuluRomeo

Hi My guess: having encountered once a...

Hi


My guess: having encountered once a HARD failure (i.e. not intermittent), the system cannot be sure its sensors are back to normal.
OK, we (human) may analyse that a priori the speed...
Forum: Tech Log
26th Aug 2011, 02:02
Replies: 1,688
Views: 406,253
Posted By AlphaZuluRomeo

Thanks A33Zab. :ok: Can anyone comment on: ...

Thanks A33Zab. :ok:

Can anyone comment on:
- the relative precision of the AoA "from an ADR" and "from an IR"?
- the relative failure rate (whatever reason) of an ADR vs an IR?

I'm trying to...
Forum: Tech Log
25th Aug 2011, 11:02
Replies: 1,688
Views: 406,253
Posted By AlphaZuluRomeo

Hi A33Zab Would you (if you may) elaborate...

Hi A33Zab

Would you (if you may) elaborate on the changes which have been made?
- what was changed, what is the new "logic"?
- when did that change took place, and why (mandatory? issuer?)
...
Forum: Tech Log
24th Aug 2011, 09:39
Replies: 1,688
Views: 406,253
Posted By AlphaZuluRomeo

@ Mad (Flt) Scientist & A33Zab: Thanks for...

@ Mad (Flt) Scientist & A33Zab:

Thanks for your answers. :ok:
Then, the MFPs on Airbus (A380) aren't the same thing I had in mind (re: The Rafale fighter probes).
On the latter, the whole probe...
Showing results 1 to 35 of 52
 
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