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Search: Posts Made By: ChristiaanJ
Showing results 1 to 35 of 99
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Forum: Tech Log
22nd Apr 2011, 21:13
Replies: 3,893
Views: 1,537,508
Posted By ChristiaanJ

What kind of organisation do you work for??? ...

What kind of organisation do you work for???

Not an astonishing fact at all, it's about the normal time you would start allocating resources to deal with 'incoming' maintenance issues.

And with...
Forum: Tech Log
22nd Apr 2011, 16:54
Replies: 3,893
Views: 1,537,508
Posted By ChristiaanJ

Gerard, the article does NOT suggest BEA knows...

Gerard, the article does NOT suggest BEA knows where to find the recorders, any more than we all do.... read it again.

Only if we're lucky, they may still be in their original location in the tail...
Forum: Tech Log
19th Apr 2011, 17:28
Replies: 3,893
Views: 1,537,508
Posted By ChristiaanJ

I'll take the risk of confusing the story.... ...

I'll take the risk of confusing the story....
Isn't most of the 'filtering', etc. done in the FDIU or FDAU (Flight Data interface or Acquistion Unit)?
Been there, done that, but too long ago to...
Forum: Tech Log
6th Apr 2011, 21:49
Replies: 3,893
Views: 1,537,508
Posted By ChristiaanJ

It will show exactly the same erroneous data... ...

It will show exactly the same erroneous data... which will then NOT correlate with the other data..
Don't worry about that too much, milsabords, it's about the first thing the people analysing the...
Forum: Tech Log
4th Apr 2011, 13:59
Replies: 3,893
Views: 1,537,508
Posted By ChristiaanJ

Two passing thoughts.... - I can't imagine...

Two passing thoughts....

- I can't imagine the sonar scans would have enough resolution to detect bodies inside the fuselage or cockpit, so one can presume they've already been taking photographs....
Forum: Tech Log
27th Mar 2011, 17:13
Replies: 3,893
Views: 1,537,508
Posted By ChristiaanJ

HN39, Isn't that two different ways of...

HN39,

Isn't that two different ways of describing exactly the same thing?

CJ
Forum: Tech Log
18th Mar 2011, 18:32
Replies: 3,893
Views: 1,537,508
Posted By ChristiaanJ

The answer is simple..... You kept US briefed. ...

The answer is simple.....
You kept US briefed.
Clearly not the remit of the BEA.....

Continue to keep US briefed, please.
Forum: Tech Log
18th Mar 2011, 18:27
Replies: 3,893
Views: 1,537,508
Posted By ChristiaanJ

From the BEA site:Didin't some of the...

From the BEA site:Didin't some of the certification standards date back to 1947 ?

Is there any news about what's going on with this particular issue at the moment?

AF447 was not the only flight...
Forum: Tech Log
17th Mar 2011, 18:34
Replies: 3,893
Views: 1,537,508
Posted By ChristiaanJ

I hope too that such bickering can be avoided. ...

I hope too that such bickering can be avoided.
It also allows the parties involved a more complete and legal access to the various "dossiers".
'Bearfoil', I suppose you did use 'discovery' in its...
Forum: Tech Log
18th Feb 2011, 20:56
Replies: 3,893
Views: 1,537,508
Posted By ChristiaanJ

It will also take a lot of design work, a lot of...

It will also take a lot of design work, a lot of certification work, and a lot of money, to see it implemented world-wide....

CJ
Forum: Tech Log
30th Jan 2011, 16:18
Replies: 3,893
Views: 1,537,508
Posted By ChristiaanJ

You're right. The "demand" to the innner loop...

You're right.
The "demand" to the innner loop (from the pilot or autopilot) is in terms of control surface position (angle), the feedback comes from a control surface position sensor.
Your analogy...
Forum: Tech Log
26th Dec 2010, 21:38
Replies: 3,893
Views: 1,537,508
Posted By ChristiaanJ

VicMel, I'm afraid you're barking up the wrong...

VicMel,
I'm afraid you're barking up the wrong tree...

Events with two out of three pitots icing up synchronously, with the A/P "believing" the wrong data, and similar strings of fault messages,...
Forum: Tech Log
22nd Dec 2010, 22:25
Replies: 3,893
Views: 1,537,508
Posted By ChristiaanJ

It wouldn't need that... All it would need is...

It wouldn't need that...
All it would need is two pitots icing up in a closely similar manner.... and that wouldn't be the first time that has happened.
And yes, the ACARS messages would have...
Forum: Tech Log
6th Dec 2010, 21:22
Replies: 3,893
Views: 1,537,508
Posted By ChristiaanJ

bearfoil, Know something...? Sometimes,...

bearfoil,
Know something...?

Sometimes, all your jokey interjections and idle musings, in what are at least halfway serious discussions, are just not helpful.

You're polluting, not...
Forum: Tech Log
27th Nov 2010, 17:01
Replies: 3,893
Views: 1,537,508
Posted By ChristiaanJ

I would say.... not a lot. However, one...

I would say.... not a lot.

However, one could hope for a bit of luck in actually finding some large parts of the wreckage itself.

I'm amazed actually that all the commentary is always about...
Forum: Tech Log
26th Nov 2010, 17:05
Replies: 3,893
Views: 1,537,508
Posted By ChristiaanJ

petitb, Could we have a link to the original...

petitb,
Could we have a link to the original article in French?
The Google translation is not helpful.

CJ
Forum: Tech Log
25th Nov 2010, 19:55
Replies: 3,893
Views: 1,537,508
Posted By ChristiaanJ

It made todays French TV news. More by...

It made todays French TV news.

More by chance (already in the programming at least a couple of weeks ago), the BBC/NOVA documentary was on French TV as well.

I've seen a lot worse...

A bit...
Forum: Tech Log
12th Nov 2010, 19:49
Replies: 3,893
Views: 1,537,508
Posted By ChristiaanJ

auve-ee, Thanks, you save me wading through a...

auve-ee,
Thanks, you save me wading through a stack of posts and earlier files.

CJ
Forum: Tech Log
12th Nov 2010, 17:13
Replies: 3,893
Views: 1,537,508
Posted By ChristiaanJ

HN39, Do you have a quick pointer to the BEA's...

HN39,
Do you have a quick pointer to the BEA's 1st interim report?
With close on 2400 posts, it would save me a tedious search.
Me too, I start to suspect all we've ever seen is the "libellé"...
Forum: Tech Log
30th Oct 2010, 10:14
Replies: 3,893
Views: 1,537,508
Posted By ChristiaanJ

CVRs come in two categories. Older ones can...

CVRs come in two categories. Older ones can record for half an hour, newer ones for two hours before over-writing the most ancient recording.
The A-330 is a recent aircraft, so two hours is the...
Forum: Tech Log
27th Oct 2010, 20:37
Replies: 3,893
Views: 1,537,508
Posted By ChristiaanJ

GreatBear, Sent you a PM. As you suggest, it...

GreatBear,
Sent you a PM.
As you suggest, it may sift some essentials from the 4500+ posts.
CJ
Forum: Tech Log
23rd Oct 2010, 23:56
Replies: 3,893
Views: 1,537,508
Posted By ChristiaanJ

As HN39 said... I was already tempted to try...

As HN39 said...
I was already tempted to try and post the same link that jcjeant just put up.
It is really anybody's guess how much, and what, debris the uncontrolled impact of AF447 would have...
Forum: Tech Log
17th Oct 2010, 19:22
Replies: 3,893
Views: 1,537,508
Posted By ChristiaanJ

Not really, apart from the vague talk about a...

Not really, apart from the vague talk about a fourth search phase being worked on.
Don't worry, enough of us try to keep track closely on what's going on, and it will be mentioned here as soon as...
Forum: Tech Log
14th Oct 2010, 15:05
Replies: 3,893
Views: 1,537,508
Posted By ChristiaanJ

One could nitpick here and there in terms of word...

One could nitpick here and there in terms of word order, but I can not see anything that needs correcting.

The actual press release is much longer, but I think you've picked out the key phrases.
...
Forum: Tech Log
11th Oct 2010, 16:11
Replies: 3,893
Views: 1,537,508
Posted By ChristiaanJ

John, No apologies needed! There were...

John,
No apologies needed!

There were enough details to indicate already it was a Google translation, but those Google translations have improved so much the last couple of years (compared to...
Forum: Tech Log
11th Oct 2010, 12:50
Replies: 3,893
Views: 1,537,508
Posted By ChristiaanJ

Just a note: "... le Bureau d'enquêtes et...

Just a note:

"... le Bureau d'enquêtes et d'analyses (BEA) a décidé de reprendre toutes les données collectées ...."
does not mean
"... the Bureau of Investigation and Analysis (BEA) has...
Forum: Tech Log
1st Sep 2010, 20:00
Replies: 3,893
Views: 1,537,508
Posted By ChristiaanJ

Most modern flight data recorders use 'flash'...

Most modern flight data recorders use 'flash' type memory chips, much like what's used in, for instance, digital cameras or iPods.
Those are pretty tough!
And most well-equipped investigating...
Forum: Tech Log
27th Aug 2010, 21:09
Replies: 3,893
Views: 1,537,508
Posted By ChristiaanJ

bearfoil, See you on the other thread, before I...

bearfoil,
See you on the other thread, before I go off-topic on the F-104... she who climbs like an angel, and glides like a brick....

CJ
Forum: Tech Log
27th Aug 2010, 20:15
Replies: 3,893
Views: 1,537,508
Posted By ChristiaanJ

As an aeronautical engineer, I totally diagree ;...

As an aeronautical engineer, I totally diagree ; I consider your definition of an "airfoil" to be quite simply wrong.
A plank can be an airfoil, a lousy one admittedly.
The F-104 has wings that...
Forum: Tech Log
23rd Jul 2010, 22:31
Replies: 3,893
Views: 1,537,508
Posted By ChristiaanJ

I thought we just established we were talking...

I thought we just established we were talking about the audio spectrum, not the RF spectrum ??

CJ
Forum: Tech Log
23rd Jul 2010, 10:39
Replies: 3,893
Views: 1,537,508
Posted By ChristiaanJ

There seems to be some confusion here...... ...

There seems to be some confusion here......

An ELT is an Emergency Location Transmitter.
It's a small package, used both on ships and aircraft.
It floats, and transmits radio waves. The...
Forum: Tech Log
22nd Jul 2010, 18:59
Replies: 3,893
Views: 1,537,508
Posted By ChristiaanJ

Oh dear... backs of envelopes have gone out of...

Oh dear... backs of envelopes have gone out of fashion, I see.

EM radiation in a vacuum: 300 000 km/sec =
300 km /msec =
300 m/µsec =
300 mm/nanosec =
30 cm = abt 1 foot.

Bearfoil, don't...
Forum: Tech Log
11th Jul 2010, 19:34
Replies: 3,893
Views: 1,537,508
Posted By ChristiaanJ

Back in the Jurassic Age, we had ... [TURB] mode....

Back in the Jurassic Age, we had ... [TURB] mode.

http://www.concordesst.com/inside/cockpittour/flightcontrols/pictures/ap13.jpg

CJ
Forum: Tech Log
10th Jul 2010, 14:08
Replies: 3,893
Views: 1,537,508
Posted By ChristiaanJ

Past tense is used differently in French, so...

Past tense is used differently in French, so without the exact wording in French of Gourgeon's reply this may well be a red herring.
I did a search for a full text of the French report of the AGM,...
Forum: Tech Log
20th Jun 2010, 20:29
Replies: 3,893
Views: 1,537,508
Posted By ChristiaanJ

JD-EE, Do you read French? You might enjoy...

JD-EE,

Do you read French?
You might enjoy "Concorde, Essais et Batailles" by André Turcat.
He was the Flight Test Director at Aérospatiale at the start of the Concorde programme, and also the...
Showing results 1 to 35 of 99
 
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