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Search: Posts Made By: henra
Showing results 1 to 35 of 68
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Forum: Tech Log
21st Apr 2011, 18:24
Replies: 3,893
Views: 1,539,795
Posted By henra

Hi Bearfoil, As has already been pointed...

Hi Bearfoil,

As has already been pointed out the DC-10 did not lose its VS.

The JAL 747 did indeed lose most of its VS. (There is a crude image existing which shows a small remaining...
Forum: Tech Log
21st Apr 2011, 17:56
Replies: 3,893
Views: 1,539,795
Posted By henra

Wow, 100.000 images. That is what I would call...

Wow, 100.000 images.
That is what I would call a detailed scan.

Regarding finding the black bokes
Taking into consideration that these are relatively heavy compact boxes of simple shape, it is...
Forum: Tech Log
21st Apr 2011, 08:55
Replies: 3,893
Views: 1,539,795
Posted By henra

deSitter, Did you care to have a look at...

deSitter,


Did you care to have a look at the wreckage photos of BEA's second report?
If you had done so you would have noticed that it was primarily the METAL support structure that broke not...
Forum: Tech Log
19th Apr 2011, 10:49
Replies: 3,893
Views: 1,539,795
Posted By henra

Not that I'm aware of. I think the tumbling...

Not that I'm aware of.
I think the tumbling referred to tumbling due to excessive maneuvering of the aircraft.
However, I have serious doubts that the IR part of the ADIRUS are prone to tumbling...
Forum: Tech Log
18th Apr 2011, 15:48
Replies: 3,893
Views: 1,539,795
Posted By henra

Hmm, probably my fault. My assumption was...

Hmm, probably my fault.
My assumption was 20-30° Nose up during impact (damage to the lower TE of the fin)
Should have made it more clear, will amend my original post.
Forum: Tech Log
18th Apr 2011, 14:54
Replies: 3,893
Views: 1,539,795
Posted By henra

Yes, the exact timings of the real events related...

Yes, the exact timings of the real events related to the ACARS messages that's where I was a bit unsure indeed.
The only thing which seemed reasonable to me was the sequence
Icing -> A/THR /AP...
Forum: Tech Log
18th Apr 2011, 10:40
Replies: 3,893
Views: 1,539,795
Posted By henra

Apart from the TE obviously having contacted the...

Apart from the TE obviously having contacted the hard surface and taken a little beating, the fins looks relatively fine to me !?

Where do you see damage to the rest of the fin structure (apart...
Forum: Tech Log
18th Apr 2011, 09:53
Replies: 3,893
Views: 1,539,795
Posted By henra

While we are at speculating: (Attention: This...

While we are at speculating:
(Attention: This is all really speculation and I'm impatiently awaiting the results of the FDR /CVR analysis after they will be hopefully found soon). Will be...
Forum: Tech Log
18th Apr 2011, 09:02
Replies: 3,893
Views: 1,539,795
Posted By henra

Yes. But in all cases except one this happened...

Yes. But in all cases except one this happened during the impact sequence



As is the case in almost all instances where an Airbus crashes. Even the Afriqiah Fin looked pristine compared to...
Forum: Tech Log
18th Apr 2011, 08:08
Replies: 3,893
Views: 1,539,795
Posted By henra

Hi Shadoko, I'm with Turbine D on this one:...

Hi Shadoko,

I'm with Turbine D on this one: Looking at the position of the supports of the plates in front of the spoilers in relation to the 'Do not step...' at the trailing edge they match...
Forum: Tech Log
17th Apr 2011, 20:42
Replies: 3,893
Views: 1,539,795
Posted By henra

Hi Machinbird, The 100m was referring to...

Hi Machinbird,

The 100m was referring to the main trail w/o the outliers.

That's what I meant with the -+-. The width of the outliers is wider but they are on a single axis vertical to the...
Forum: Tech Log
17th Apr 2011, 19:47
Replies: 3,893
Views: 1,539,795
Posted By henra

When looking at the N-S extension of the main...

When looking at the N-S extension of the main Debris Trail, I have to admit I'm somewhat in the boat of Mr. Optimistic here.

The N-S extension of the trail is mostly below 100m.
Considering a...
Forum: Tech Log
13th Apr 2011, 19:37
Replies: 3,893
Views: 1,539,795
Posted By henra

For my taste these figures seem a tad too low for...

For my taste these figures seem a tad too low for an A330 @210t.

Light GA Aircraft usually spin at a vertical rate constantly surprisingly close to 6000ft/min. You can see that in most accident...
Forum: Tech Log
13th Apr 2011, 19:22
Replies: 3,893
Views: 1,539,795
Posted By henra

During which time the Aircraft would travel a...

During which time the Aircraft would travel a distance of roughly 10 - 15nm i.e. way beyond where it is supposed to have been found now.

On the other hand this would leave roughly 2,5 - 3 minutes...
Forum: Tech Log
10th Apr 2011, 19:28
Replies: 3,893
Views: 1,539,795
Posted By henra

I don't know if this refers to my statement. If...

I don't know if this refers to my statement.
If yes please read my post carefully. That should explain why I'm a bit surprised that it is that close.
If we assume that the aircraft at LKP was still...
Forum: Tech Log
10th Apr 2011, 19:09
Replies: 3,893
Views: 1,539,795
Posted By henra

Theoretically that is a continuity. In...

Theoretically that is a continuity.

In practical terms however, I have difficulties to see how an A330 @210t can arrive at the attitude described by BEA and which seems to be confirmed by the...
Forum: Tech Log
10th Apr 2011, 16:59
Replies: 3,893
Views: 1,539,795
Posted By henra

I was wondering a bit the same why BEA only...

I was wondering a bit the same why BEA only considered one of those phases where there was a delay as a loss of signal.

If all these phases were due to loss of signal, that would indicate really...
Forum: Tech Log
8th Apr 2011, 17:10
Replies: 3,893
Views: 1,539,795
Posted By henra

This accident really remains a mystery. I...

This accident really remains a mystery.

I have to say I (along with some others) was strongly in favour of a search close to LKP. The really strange thing about it is now that they found it...
Forum: Tech Log
6th Feb 2011, 10:38
Replies: 3,893
Views: 1,539,795
Posted By henra

Re: The link. Hmmm, I read it and must say: ...

Re: The link.
Hmmm, I read it and must say:
I'm not impressed.
At all.

OK, nice collection of the AD's but in the text so much gets mixed up, is unprecisely described (e.g. mixing up QF72 and...
Forum: Tech Log
6th Feb 2011, 08:41
Replies: 3,893
Views: 1,539,795
Posted By henra

JD-EE That would probably be the ideal...

JD-EE


That would probably be the ideal approach, assuming that a 180° turn at cruise speed would already consume 5-10nm, thus reducing the effective range in the opposite direction to some...
Forum: Tech Log
5th Feb 2011, 09:13
Replies: 3,893
Views: 1,539,795
Posted By henra

mm43 Agreed ! Most of the scenarios...

mm43


Agreed !
Most of the scenarios were more or less instant drop or spiral dive sometimes with mid air disintegration. AF447 took significantly longer than most of those cited.

However,...
Forum: Tech Log
4th Feb 2011, 21:47
Replies: 3,893
Views: 1,539,795
Posted By henra

If I got it right, they are basically planning to...

If I got it right, they are basically planning to do a search of 20nm around LKP.

That sounds like a plan !
From my point of view a very reasonable approach.

Seems to take into consideration...
Forum: Tech Log
1st Feb 2011, 21:46
Replies: 3,893
Views: 1,539,795
Posted By henra

svarin Hmmm, interesting. Maybe I was...

svarin


Hmmm, interesting. Maybe I was too quick to dismiss the idea of an attempted re- connection of the A/P

Still it would have to be rather late in the chain of events, but then I'm not...
Forum: Tech Log
30th Jan 2011, 09:43
Replies: 3,893
Views: 1,539,795
Posted By henra

Good point ! I checked the sequence and...

Good point !

I checked the sequence and indeed there seems to be no slot in the ACARS list where an A/P re- engagement could have taken place.
(Btw. I am assuming an A/P re- engagement would not...
Forum: Tech Log
29th Jan 2011, 09:33
Replies: 3,893
Views: 1,539,795
Posted By henra

Machinbird, This is an interesting theorie...

Machinbird,

This is an interesting theorie !
@Bearfoil has also suggested this as a possible cause for the ADR disagree.
Technically that seems to be possible.

Looking more empirically at...
Forum: Tech Log
5th Dec 2010, 12:37
Replies: 3,893
Views: 1,539,795
Posted By henra

GreatBear, I strongly tend to agree. ...

GreatBear,

I strongly tend to agree.

Back then I did a rough calculation or should I say guestimate about the dissipation of speed assuming a high altitude stall and an impact with low...
Forum: Tech Log
3rd Dec 2010, 13:48
Replies: 3,893
Views: 1,539,795
Posted By henra

So that means you basically accept that if the...

So that means you basically accept that if the pitots on an airliner fail it is OK for it to drop out of the sky ????
That is not seriously your take on this accident ?!

It has to be found out...
Forum: Tech Log
3rd Dec 2010, 12:34
Replies: 3,893
Views: 1,539,795
Posted By henra

That was also my impression. The drift of the...

That was also my impression.
The drift of the bodies represented a rather sharply shaped Funnel.

What I don't understand:
Why wasn't the First Search performed in an opposite direction funnel...
Forum: Tech Log
4th Nov 2010, 22:31
Replies: 3,893
Views: 1,539,795
Posted By henra

Regarding the missing communication: This may...

Regarding the missing communication:
This may be an indication that something went wrong much earlier than initially thought.
But it doesn't have to.
When looking at NTSB accident reports (mostly...
Forum: Tech Log
1st Nov 2010, 09:46
Replies: 3,893
Views: 1,539,795
Posted By henra

As previous contributors have already stated the...

As previous contributors have already stated the length of the narrow 'leg' of the spill in the AF447 case does not fit to fuel rising from the bottom.
It is much too short and narrow for that.
...
Forum: Tech Log
28th Oct 2010, 19:37
Replies: 3,893
Views: 1,539,795
Posted By henra

GreatBear, JD-EE, I like both of your...

GreatBear, JD-EE,

I like both of your approaches !
It might be worthwhile to do both. And then compare the results. :ok:

Going only for GreatBear's approach is very interesting all by...
Forum: Tech Log
21st Oct 2010, 18:25
Replies: 3,893
Views: 1,539,795
Posted By henra

Bearfoil, I understand and respect your...

Bearfoil,

I understand and respect your motivation of keeping the pressure up on BEA.
However, I'm not sure if this is really the right platform and the ideal way to achieve this.
What is...
Forum: Tech Log
1st Oct 2010, 16:52
Replies: 3,893
Views: 1,539,795
Posted By henra

Bearfoil, I wouldn't necessarily say they...

Bearfoil,

I wouldn't necessarily say they were not involved at all.
But I fully agree they can't be the only reason for the accident.
Although there were incidents with the pitots in the...
Forum: Tech Log
30th Sep 2010, 21:17
Replies: 3,893
Views: 1,539,795
Posted By henra

Me neither. They wouldn't be that stupid.... ...

Me neither.
They wouldn't be that stupid....

Moreover, the uncertainty about what happened cannot be in the interest of Airbus either.
It implies there is an unresolved risk of an Airbus plane...
Forum: Tech Log
4th Sep 2010, 16:49
Replies: 3,893
Views: 1,539,795
Posted By henra

HazelNuts, that's exactly the scenario that...

HazelNuts,
that's exactly the scenario that crossed my mind as well.

OldEngineer:
I was thinking that maybe the tip of the tailcone hit first, starting to cause damage to the cone especially...
Showing results 1 to 35 of 68
 
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