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Search: Posts Made By: xcitation
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Forum: Tech Log
12th Aug 2011, 22:14
Replies: 1,998
Views: 512,430
Posted By xcitation

Stall, whats that? Round 2.

@takata,

I don't understand your comment "conspiracy theory" etc. Let's stick to the data and refrain from presumptions and personal accusations.

I am trying to understand why they ignored...
Forum: Tech Log
12th Aug 2011, 18:46
Replies: 1,998
Views: 512,430
Posted By xcitation

@Takata Thanks for debunking that. Isn't...

@Takata

Thanks for debunking that.
Isn't that phrase a little nonchalent for the warning of death?
More appropriate for a knock on their door or an accidental release of digestive gas.
I...
Forum: Tech Log
12th Aug 2011, 18:07
Replies: 1,998
Views: 512,430
Posted By xcitation

"STALL!" Qu'est ce que c'est?

Pardon my ignorant red neck question :}, I am not a native french speaker.
Obviously I understand the international aviation convention is english.
However is the A330 stall warning obvious to a...
Forum: Tech Log
11th Aug 2011, 19:19
Replies: 1,998
Views: 512,430
Posted By xcitation

It's amazing how graceful/forgiving the A330...

It's amazing how graceful/forgiving the A330 behaves below its flight envelope (stalled, storm and low airspeed)?

Before this incident if you asked me if a transport can be controlled at ~30kts...
Forum: Tech Log
10th Aug 2011, 00:04
Replies: 1,998
Views: 512,430
Posted By xcitation

One thing that stands out is at circa FL350 the...

One thing that stands out is at circa FL350 the Captain should have taken his seat. Why would he not do that?
Why would a Captain decide to be only a back seat observer and commentator?
With my...
Forum: Tech Log
7th Aug 2011, 04:50
Replies: 1,998
Views: 512,430
Posted By xcitation

The initial pull up immediately after AP...

The initial pull up immediately after AP disconnect IMHO was because pitch was 0 deg, altitude descending. For some reason his 2/3 deflection pull up maintained a level altitude for a number of...
Forum: Tech Log
6th Aug 2011, 22:23
Replies: 1,998
Views: 512,430
Posted By xcitation

It appears that rudderrat is correct. If only...

It appears that rudderrat is correct.
If only Normal law had been preserved.



ALT law took out the following protections:

pitch attitude
low energy
alpha floor
Forum: Tech Log
6th Aug 2011, 18:18
Replies: 1,998
Views: 512,430
Posted By xcitation

Hmmm, where did you find this situation in the...

Hmmm, where did you find this situation in the plots ????
Where was any indication the PF was trying to get the Nose down ??
In contrary the Nose descended a couple of times despite continued NU...
Forum: Tech Log
5th Aug 2011, 20:49
Replies: 1,998
Views: 512,430
Posted By xcitation

3hole... We do not all have your "Chuck...

3hole...

We do not all have your "Chuck Yeager" skill level. The rest of us non-aces require extensive training.

This was a stall in an a/c with degraded instruments, ALT LAW, no visual in...
Forum: Tech Log
5th Aug 2011, 19:56
Replies: 1,998
Views: 512,430
Posted By xcitation

Neptunus Rex, How do you know which instruments...

Neptunus Rex,
How do you know which instruments are valid and which are bogus.
You might only have seconds to figure it out!

I recommend you read the QF72 interim factual 1, to see what the...
Forum: Tech Log
5th Aug 2011, 17:55
Replies: 1,998
Views: 512,430
Posted By xcitation

@takata/airtren (thanks for your recent posts) ...

@takata/airtren (thanks for your recent posts)



Good call.
However how do you identify a real stall from a false stall?
Keep in mind that 6-9 months prior to AF447 incident we had a couple...
Forum: Tech Log
4th Aug 2011, 23:01
Replies: 1,998
Views: 512,430
Posted By xcitation

The english report is out. Link can be found a...

The english report is out.
Link can be found a few pages back.
Forum: Tech Log
4th Aug 2011, 22:04
Replies: 1,998
Views: 512,430
Posted By xcitation

Very important point. So... AP disconnects ...

Very important point. So...

AP disconnects
a/c at 0 deg pitch => will descend
pilot stick back 3/4 causing nose up pitch 11 deg.
climb rate goes up.
after 4 seconds first stall warning
after...
Forum: Tech Log
4th Aug 2011, 15:45
Replies: 1,998
Views: 512,430
Posted By xcitation

I think at that point they were in a total state...

I think at that point they were in a total state of confusion which would challenge even the best Ace. I have slightly modified my view on the overspeed.
Consider the start when AP disconnect the...
Forum: Tech Log
3rd Aug 2011, 23:54
Replies: 1,998
Views: 512,430
Posted By xcitation

Bear IMHO they were convinced of overspeed....

Bear
IMHO they were convinced of overspeed. Nose up, give me all the stick back you got, why does she stop at pitch +16 deg, I want more. Deploy spoilers. Idle the engines. Crazy speed.

What...
Forum: Tech Log
3rd Aug 2011, 20:20
Replies: 1,998
Views: 512,430
Posted By xcitation

Clearly not every circumstance can be trained,...

Clearly not every circumstance can be trained, programmed and simulated.
Once we accept that fact then we see a need for augmenting the resources on the flight deck in an emergency situation.
One...
Forum: Tech Log
3rd Aug 2011, 04:02
Replies: 1,998
Views: 512,430
Posted By xcitation

Even if the speedometer broke and you were...

Even if the speedometer broke and you were driving in the dark without lights?
Forum: Tech Log
3rd Aug 2011, 03:56
Replies: 1,998
Views: 512,430
Posted By xcitation

Is it just my perception or is it that both FO's...

Is it just my perception or is it that both FO's talk in vague terms. Lots of ambiguous references to up/down and to indicators. At one point is there confusion in what they are conversing about? I...
Forum: Tech Log
2nd Aug 2011, 22:56
Replies: 1,998
Views: 512,430
Posted By xcitation

You might have this already 100%. According to...

You might have this already 100%.
According to manual see red and black then [stick back] "reflex action".

Quote from airbus manual, my bold for emphasis.
Forum: Tech Log
2nd Aug 2011, 21:44
Replies: 1,998
Views: 512,430
Posted By xcitation

airtren PF was found unbuckled. This does...

airtren

PF was found unbuckled. This does not mean he was flying unbuckled or buckled, only after impact he was found unbuckled.
I find it very unlikely that PF would not be strapped in whilst...
Forum: Tech Log
2nd Aug 2011, 20:02
Replies: 1,998
Views: 512,430
Posted By xcitation

@SaturnV Whilst I totally agree that...

@SaturnV



Whilst I totally agree that it is very odd, one has to be careful when making inferences about PF behaviour based on circumstantial evidence. It is possible that the belt was...
Forum: Tech Log
1st Aug 2011, 07:22
Replies: 1,998
Views: 512,430
Posted By xcitation

Having lost the IAS due to pitot they then did a...

Having lost the IAS due to pitot they then did a zoom climb. This traded their velocity for altitude gain and resulted in the slower speed and stall problem. We can presume that the initial zoom...
Forum: Tech Log
20th Jul 2011, 21:23
Replies: 1,998
Views: 512,430
Posted By xcitation

@Takata Thanks for the superb graphic. Do...

@Takata

Thanks for the superb graphic. Do you recall the posts that AF did not install all of the available backup steam guages option on this a/c?

The report does not explicitly state...
Forum: Tech Log
20th Jul 2011, 17:21
Replies: 1,998
Views: 512,430
Posted By xcitation

@PJ2 Would you pick any of these? ...

@PJ2


Would you pick any of these?

The list was in reference to the stick backs during the stall rather than in the flying zoom climb earlier. The stick back during the stall is harder to...
Showing results 1 to 24 of 24


 
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