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Search: Posts Made By: Chris Scott
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Forum: Tech Log
2nd Apr 2018, 11:24
Replies: 1,678
Views: 533,057
Posted By Chris Scott

Hi. Presumably you meant to say "... an airplane...

Hi. Presumably you meant to say "... an airplane non-compliant with the basic certification regulations (no static longitudinal stability and no low-speed protection)." ?

Am not conversant with...
Forum: Tech Log
28th Feb 2017, 17:24
Replies: 1,678
Views: 533,057
Posted By Chris Scott

Quote from _Phoenix "Now, at 2h10m41s...

Quote from _Phoenix
"Now, at 2h10m41s apparently Bonin was in control, he checked from his memory, UAS items: (THR) "yeah we’re in climb" then corrected the pitch to 5-7 deg, all seemed stabilized,...
Forum: Tech Log
27th Feb 2017, 17:09
Replies: 1,678
Views: 533,057
Posted By Chris Scott

"Icepack, I do agree with your observation that...

"Icepack, I do agree with your observation that one should be gentle with the controls at high altitude. One should be gentle at all times with transport aircraft! It was this same, sage advice that...
Forum: Tech Log
27th Feb 2017, 15:43
Replies: 1,678
Views: 533,057
Posted By Chris Scott

Quote from Concours77: "This should rebut any...

Quote from Concours77:
"This should rebut any discussion of paralyzing fear, the flee fight syndrome, or other theories indulged to establish abnormal reaction/behaviour?"

It might at first seem...
Forum: Tech Log
27th Feb 2017, 11:47
Replies: 1,678
Views: 533,057
Posted By Chris Scott

Quote from Concours77 [my emphasis]: "I asked...

Quote from Concours77 [my emphasis]:
"I asked Owain Glyndwr at one point why the graph in the report of the THS movement looks "smooth"? Yet the graph of the stick trace looks anything but? The...
Forum: Tech Log
27th Feb 2017, 00:09
Replies: 1,678
Views: 533,057
Posted By Chris Scott

Quotes from Concours77: (1) "... the elevators...

Quotes from Concours77:
(1) "... the elevators return to "neutral" and the THS has actually "supplanted" the elevators as primary flight control?"

No, the THS remains the secondary flight...
Forum: Tech Log
26th Feb 2017, 22:12
Replies: 1,678
Views: 533,057
Posted By Chris Scott

Auto-trim

In the midst of his discussion with Owain Glyndwr, Concours77 has quoted a paragraph I wrote in post #1359 (http://www.pprune.org/tech-log/539756-af-447-thread-no-12-a-68.html#post9688143):
"The...
Forum: Tech Log
25th Feb 2017, 23:40
Replies: 1,678
Views: 533,057
Posted By Chris Scott

Quote from Winnerhofer (post #1345) : "They...

Quote from Winnerhofer (post #1345) :
"They entered a climb as the Auto Trim motored smoothly to full NU, where it stayed until impact."

Not quite...

The function of any auto-trim system is...
Forum: Tech Log
23rd Feb 2017, 13:58
Replies: 1,678
Views: 533,057
Posted By Chris Scott

Quote from Machinbird: "Did he have any...

Quote from Machinbird:
"Did he have any experience hand flying at altitude? I am thinking he did not since he was flying extensively in RVSM airspace on autopilot. If he had any exposure to hand...
Forum: Tech Log
20th Oct 2016, 19:19
Replies: 1,678
Views: 533,057
Posted By Chris Scott

Quote from RAT5: "I wonder how many pilots of...

Quote from RAT5:
"I wonder how many pilots of any modern jet a/c have hand flown their steed at high FL's. During LT I always used to introduce the student to such a heresy. You could sense the...
Forum: Tech Log
15th Oct 2016, 09:26
Replies: 1,678
Views: 533,057
Posted By Chris Scott

Quote from Linktrained: "IF THS is usually " 5...

Quote from Linktrained:
"IF THS is usually " 5 units Plus or Minus 2 units" .... But is seen to be outside this range ... THAT might make a Pilot suspect that something might be WRONG. "

Not...
Forum: Tech Log
11th Oct 2016, 20:57
Replies: 1,678
Views: 533,057
Posted By Chris Scott

Stall recovery using AoA

Quote:
"Stall recovery using AoA was very simple, as the stall AoA was independent of attitude or gee ( previously asserted)."

Thanks gums: knew I'd get a clear view of practical experience from...
Forum: Tech Log
8th Oct 2016, 20:03
Replies: 1,678
Views: 533,057
Posted By Chris Scott

Hello RAT 5 and vapilot2004, IIRC, both VMC...

Hello RAT 5 and vapilot2004,

IIRC, both VMC and horizons are fairly nebulous concepts at FL350. Ever tried flying straight and level at that altitude without an artificial horizon?

What I...
Forum: Tech Log
6th Oct 2016, 10:07
Replies: 1,678
Views: 533,057
Posted By Chris Scott

Thanks Owain, From which I infer that the...

Thanks Owain,

From which I infer that the current Airbus FBW provision to comply with the JAR is the aural element.

A stick shaker or vibrator of some kind seems worthy of consideration, but...
Forum: Tech Log
5th Oct 2016, 20:10
Replies: 1,678
Views: 533,057
Posted By Chris Scott

Hi safetypee, Thanks for your thoughtful...

Hi safetypee,
Thanks for your thoughtful responses and criticisms. Having been accustomed to them on five jet transports until I flew the A320, I agree that some form of stick-shaker should be...
Forum: Tech Log
3rd Oct 2016, 20:36
Replies: 1,678
Views: 533,057
Posted By Chris Scott

Quote from A33Zab (my emphasis): "Besides this...

Quote from A33Zab (my emphasis):
"Besides this there are more updates since the event.
BUSS(before event) and further enhancement >Reversible BUSS.
Hybrid FPA.
Visible Red 'STALL STALL' warning...
Forum: Tech Log
2nd Oct 2016, 18:29
Replies: 1,678
Views: 533,057
Posted By Chris Scott

Hi Goldenrivett, Apologies for overlooking...

Hi Goldenrivett,

Apologies for overlooking your post #1100, and thanks for the heads-up on mods. Must admit, however, that - assuming your quote is verbatim - the AI information on the logic...
Forum: Tech Log
1st Oct 2016, 22:07
Replies: 1,678
Views: 533,057
Posted By Chris Scott

Quote from Mr Optimistic: "...I think the point...

Quote from Mr Optimistic:
"...I think the point about latching the warning is that the system alarmed on valid data, the data then went invalid (as it happens because of the scenario which generated...
Forum: Tech Log
30th Sep 2016, 10:36
Replies: 1,678
Views: 533,057
Posted By Chris Scott

Uplinker, As some others have already said,...

Uplinker,

As some others have already said, your experience has given much food for thought, and FWIW I raise my hat to you for bravely sharing it with us.

Good flying!
Forum: Tech Log
26th Sep 2016, 10:05
Replies: 1,678
Views: 533,057
Posted By Chris Scott

Quote from Owain Glyndwr: "or (3) abiding by...

Quote from Owain Glyndwr:
"or
(3) abiding by the vane manufacturer's DDP which gave the limits on output validity for the vanes?"

Thank goodness for the presence of an engineer to remind one of...
Forum: Tech Log
25th Sep 2016, 20:43
Replies: 1,678
Views: 533,057
Posted By Chris Scott

Whether jet-transport pilots should have an AoA...

Whether jet-transport pilots should have an AoA indicator or not - and I must admit I'm inclined to think that they should, even if it is only to be used as a last resort for stall diagnosis in the...
Forum: Tech Log
4th Sep 2014, 15:04
Replies: 1,678
Views: 533,057
Posted By Chris Scott

Hello Winnerhofer, That would all benefit...

Hello Winnerhofer,

That would all benefit from a definitive translation into English.

Quote from Stéphane Gicquel, secrétaire général de la Fédération nationale des victimes d'attentats et...
Forum: Tech Log
27th Aug 2014, 13:11
Replies: 1,678
Views: 533,057
Posted By Chris Scott

Actually, Winnerhofer, it seems that Air France's...

Actually, Winnerhofer, it seems that Air France's imposition of English on its pilots is only for communications with ATC at Roissy (CDG). I don't think there are any existing or proposed French...
Forum: Tech Log
25th Aug 2014, 22:49
Replies: 1,678
Views: 533,057
Posted By Chris Scott

Apologies, roulis, Yes, I misread your 15%...

Apologies, roulis,

Yes, I misread your 15% slope as 15 degrees. (Maybe I need new reading spectacles!) Must admit I am not accustomed to seeing descent profiles or glide-slopes expressed as...
Forum: Tech Log
25th Aug 2014, 16:20
Replies: 1,678
Views: 533,057
Posted By Chris Scott

Bon soir roulishollandais, I am not...

Bon soir roulishollandais,

I am not following this current AF447 discussion - just occasionally dipping in - and I certainly do not want to get involved in a latterday argument about Mont St....
Forum: Tech Log
26th May 2014, 23:18
Replies: 1,678
Views: 533,057
Posted By Chris Scott

Thanks for the photo of the PFD, Dozy. The VS...

Thanks for the photo of the PFD, Dozy. The VS indicator "needle" is the horizontal green line to the right of the present altitude, and graduations can be seen above and below it.

Reference to a...
Forum: Tech Log
26th May 2014, 22:20
Replies: 1,678
Views: 533,057
Posted By Chris Scott

PFD indication of VS

Regardless of the relative merits of tape altimeters and the one-rev-per-thousand-feet needle, don't forget that the VS indicator is right next to the altitude tape, and is similar to a traditional...
Forum: Tech Log
16th May 2014, 22:29
Replies: 1,678
Views: 533,057
Posted By Chris Scott

" 'Tis a question of personalities." Quite....

" 'Tis a question of personalities."

Quite. AF447 is all about human factors, and in this case they are not confined to the cockpit - or the aeroplane on the night.

However, a captain called...
Forum: Tech Log
16th May 2014, 21:14
Replies: 1,678
Views: 533,057
Posted By Chris Scott

Mac, Notwithstanding the inexplicable...

Mac,

Notwithstanding the inexplicable mishandling by the PF, the bigger mystery for me has always been the apparently deferential attitude of the older, more-experienced PNF, who seemed to decide...
Forum: Tech Log
16th May 2014, 17:38
Replies: 1,678
Views: 533,057
Posted By Chris Scott

IMHO, the only crumb of comfort to be drawn from...

IMHO, the only crumb of comfort to be drawn from this otherwise unmitigated tragedy is that every thinking student and practitioner of aeronautics has found something to learn from it. I imagine that...
Showing results 1 to 30 of 30


 
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