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Search: Posts Made By: ChristiaanJ
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Forum: Tech Log
31st Oct 2011, 16:38
Replies: 1,688
Views: 407,938
Posted By ChristiaanJ

To me, "quietly" is the keyword, no? I've...

To me, "quietly" is the keyword, no?
I've repeatedly suggesting bringing back the 'pitch trim bicycle bell', but nobody has really picked up on that.
Yet, it's sufficiently different from the other...
Forum: Tech Log
30th Oct 2011, 16:47
Replies: 1,688
Views: 407,938
Posted By ChristiaanJ

I was interested as well, but the discussion...

I was interested as well, but the discussion petered out through lack of useable data.
Forum: Tech Log
27th Oct 2011, 17:17
Replies: 1,688
Views: 407,938
Posted By ChristiaanJ

I feel a slow urge coming on to pull out what's...

I feel a slow urge coming on to pull out what's left of my university course notes ("stability and control" was supposedly my 'final' subject, got me my first job on Concorde systems).

"Aircraft...
Forum: Tech Log
27th Oct 2011, 16:31
Replies: 1,688
Views: 407,938
Posted By ChristiaanJ

AZR, lets keep US politics out of this, shall we?

AZR, lets keep US politics out of this, shall we?
Forum: Tech Log
20th Oct 2011, 23:53
Replies: 1,688
Views: 407,938
Posted By ChristiaanJ

What else is the "STALL, STALL, STALL!" aural...

What else is the "STALL, STALL, STALL!" aural warning? It occurs before the actual stall (as well as supposedly during it, different issue, that).

My suggestion and argument, entirely.

Not...
Forum: Tech Log
20th Oct 2011, 22:48
Replies: 1,688
Views: 407,938
Posted By ChristiaanJ

Am I the only one here who thinks there is little...

Am I the only one here who thinks there is little or no point in an AoA indicator on the panel of an 'ordinary' subsonic airliner?

We've seen arguments for it on carrier-based aircraft, and yes,...
Forum: Tech Log
20th Oct 2011, 21:50
Replies: 1,688
Views: 407,938
Posted By ChristiaanJ

Just tossing one more herring (probably a red...

Just tossing one more herring (probably a red one) into the bin.

How many pilots would ever have seen - in real lifre or in the sim - a V/S 'needle' (yes, I've seen what it looks like on the...
Forum: Tech Log
16th Oct 2011, 21:48
Replies: 1,688
Views: 407,938
Posted By ChristiaanJ

CONFiture, Sorry for being lazy. What's the...

CONFiture,
Sorry for being lazy.
What's the bottom purple trace in the graph in your latest post (the one degenerating into another 'zipper')?
Seems to say "Angle de Pente" (pitch flight path...
Forum: Tech Log
12th Oct 2011, 20:02
Replies: 1,688
Views: 407,938
Posted By ChristiaanJ

Let's not get into a reciprocal slanging match...

Let's not get into a reciprocal slanging match (again?) but with more than 30 years in "Ae", I think I know the difference between unfounded imagination and knowledge better than you do, it seems.
Forum: Tech Log
12th Oct 2011, 16:43
Replies: 1,688
Views: 407,938
Posted By ChristiaanJ

Thanks, Lyman, for confirming you do not have the...

Thanks, Lyman, for confirming you do not have the slightest notion of aeronautical engineering...

Give it a break, mate... you're trying to play way outside your league.
Forum: Tech Log
12th Oct 2011, 14:23
Replies: 1,688
Views: 407,938
Posted By ChristiaanJ

CONF, I admit to being baffled by the SEL'D...

CONF,

I admit to being baffled by the SEL'D VS trace.
The 'zipper' before the AP disconnect looks like an FDR or postprocessing graph software artefact (as suggested), but why does it jump to...
Forum: Tech Log
10th Oct 2011, 21:04
Replies: 1,688
Views: 407,938
Posted By ChristiaanJ

CONF, I thought the somewhat 'odd' V/S SEL...

CONF, I thought the somewhat 'odd' V/S SEL recording had already been solved, either earlier in this thread, or in one of the earlier threads.
Forum: Tech Log
9th Oct 2011, 16:13
Replies: 1,688
Views: 407,938
Posted By ChristiaanJ

Zorin, drop it. Neither those conspiracy...

Zorin, drop it.
Neither those conspiracy theorists, nor the families, nor their 'ambulance-chasing' lawyers, have the technical competence to interpret those data correctly.
Forum: Tech Log
7th Oct 2011, 16:49
Replies: 1,688
Views: 407,938
Posted By ChristiaanJ

Dozy, et al., What, in the end, are the...

Dozy, et al.,

What, in the end, are the differences between the Thales (AA and AB) and Goodrich probes?

AFAIK, all of them are still being qualified/certified against an obsolete standard, and...
Forum: Tech Log
19th Sep 2011, 16:57
Replies: 1,688
Views: 407,938
Posted By ChristiaanJ

Dozy, Please stop feeding the troll..... I...

Dozy,
Please stop feeding the troll.....
I would like to put him on my 'ignore' list, but since he changes his ID continuously, and then pollutes the thread yet again, that isn't practical, if one...
Forum: Tech Log
16th Sep 2011, 21:51
Replies: 1,688
Views: 407,938
Posted By ChristiaanJ

We've been there before... and unfortunately we...

We've been there before... and unfortunately we have no comment from whoever designed that logic, instead of just using WoW.
Somehow IAS <60kts at altitude was never considered....

Oddly enough,...
Forum: Tech Log
16th Sep 2011, 17:27
Replies: 1,688
Views: 407,938
Posted By ChristiaanJ

I'm still baffled.... why 'blame' the AoA vane? ...

I'm still baffled.... why 'blame' the AoA vane?
The often-quoted recorded 60kts IAS was a result of the UAS (blocked pitots), it was NOT the real IAS of the aircraft at the time in question.
A lot...
Forum: Tech Log
7th Sep 2011, 17:10
Replies: 1,688
Views: 407,938
Posted By ChristiaanJ

Thanks Peter.... I's vexing sometimes to see...

Thanks Peter....
I's vexing sometimes to see those comments from people that have never designed a flight control system, and that have no idea how such a system works....
No guys.... the 'mad'...
Forum: Tech Log
7th Sep 2011, 15:03
Replies: 1,688
Views: 407,938
Posted By ChristiaanJ

gums, You're right, Concorde "stalled", or...

gums,
You're right, Concorde "stalled", or rather "mushed" much like another delta.
Not a good idea, because by then you were well on the back of the power curve, so there were both a stick shaker...
Forum: Tech Log
5th Sep 2011, 16:43
Replies: 1,688
Views: 407,938
Posted By ChristiaanJ

That's a question I've asked myself a few times,...

That's a question I've asked myself a few times, too.
The present-day standby instruments use small LCD screens too, which still rely on some kind of separate secure electrical supply, and...
Forum: Tech Log
4th Sep 2011, 17:01
Replies: 1,688
Views: 407,938
Posted By ChristiaanJ

There are various ways to tell 'non-test-pilots'...

There are various ways to tell 'non-test-pilots' that they are entering 'test pilot territory', and test pilots lost their lives to get those boundaries established.

"Stall Stall Stall" is one,...
Forum: Tech Log
30th Aug 2011, 23:06
Replies: 1,688
Views: 407,938
Posted By ChristiaanJ

That question has been asked before (I've asked...

That question has been asked before (I've asked it) and so far I've not seen a clear answer. The consensus (from NASA reports etc.) seems to be that even FFS systems just extrapolate from the limits...
Forum: Tech Log
29th Aug 2011, 22:39
Replies: 1,688
Views: 407,938
Posted By ChristiaanJ

mm43, I think you're right.... too many people...

mm43,
I think you're right.... too many people read too much into the translations.

HarryMann,
"an old 3 needle analogue altimeter".
IIRC, they killed several people....
IMHO, the combined...
Forum: Tech Log
28th Aug 2011, 15:07
Replies: 1,688
Views: 407,938
Posted By ChristiaanJ

I suppose you are referring to the FDIU (flight...

I suppose you are referring to the FDIU (flight data interface unit).
It's barely a 'computer'... the French term 'ordinateur' would be better.
It doesn't 'know' anything, and it doesn't 'think',...
Forum: Tech Log
22nd Aug 2011, 17:10
Replies: 1,688
Views: 407,938
Posted By ChristiaanJ

That remark is so disgusting, that it merits...

That remark is so disgusting, that it merits being immortalized as one of Lieman/bearfoil's gems.....

Being scared to death (and rightly so this time, no 'pun' intended) makes one a "coward"?...
Forum: Tech Log
22nd Aug 2011, 14:30
Replies: 1,688
Views: 407,938
Posted By ChristiaanJ

Just a nitpick about "Airbus SAS".... Airbus...

Just a nitpick about "Airbus SAS"....
Airbus is a SAS, which stands for "Société par Actions Simplifiée" and refers to a "société anonyme with special statutes" according to French commercial law...
Forum: Tech Log
21st Aug 2011, 17:47
Replies: 1,688
Views: 407,938
Posted By ChristiaanJ

Stop moaning about that, Zorin..... It's a...

Stop moaning about that, Zorin.....
It's a matter of terminology, further confused by the early "locked-in stall" accidents of some of the early T-tails being referred to as "deep stalls".

I...
Forum: Tech Log
20th Aug 2011, 16:47
Replies: 1,688
Views: 407,938
Posted By ChristiaanJ

Re Alternate.... Halfway serious question.... :...

Re Alternate....
Halfway serious question.... :
Could you have recited that list without your notes (AND clearly visualised or 'conceptualised' each particular case) in a car going down-hill with...
Forum: Tech Log
17th Aug 2011, 21:10
Replies: 1,688
Views: 407,938
Posted By ChristiaanJ

A33Zab, Thanks for the pics and the info. Was...

A33Zab,
Thanks for the pics and the info.
Was that the fit of the AF447 A330?
Forum: Tech Log
17th Aug 2011, 16:36
Replies: 1,688
Views: 407,938
Posted By ChristiaanJ

LT and 3hole, - So far there is still no...

LT and 3hole,

- So far there is still no mention of the primary attitude data or displays going t!ts-up at any time, so discussing the standby horizon is just a sideline... (my firm made them,...
Forum: Tech Log
16th Aug 2011, 16:04
Replies: 1,688
Views: 407,938
Posted By ChristiaanJ

Two answers from me, and I'll gladly stand...

Two answers from me, and I'll gladly stand corrected by the 'bus' experts.

- Most of the gains (and some of the logic) in the basic control loops (even in attitude hold) are functions of IAS (or,...
Forum: Tech Log
15th Aug 2011, 21:12
Replies: 1,688
Views: 407,938
Posted By ChristiaanJ

Dozy and 3hole, As JD-EE already said, "stop...

Dozy and 3hole,
As JD-EE already said, "stop feeding the troll....."
Showing results 1 to 32 of 32


 
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