PPRuNe Forums

PPRuNe Forums (https://www.pprune.org/)
-   Tech Log (https://www.pprune.org/tech-log-15/)
-   -   AF 447 Thread No. 8 (https://www.pprune.org/tech-log/482356-af-447-thread-no-8-a.html)

BOAC 24th June 2012 10:12

"Now, you do know that some monkeys have been trained to use them!" - not, apparently, in Air France:mad:

Machinbird 24th June 2012 14:31


Giving them AoA or a HUD would, in my opinion, be like giving a monkey an Ipad.
AF447's crew needed to have their attention drawn initially to their altitude and then to their pitch attitude. Later, they needed to understand their angle of attack, and finally they needed to understand their Flight Path Vector and the fact that it was pointed at the ground although the nose was pointed up.

I think we (collectively) can figure out ways to draw attention to a particular indication when computers recognize abnormal operation. What we might do to help pilots in general and automation dependent pilots in particular is have another system that helps direct their attention to crucial parameters that need correction. This could be a highly engineered system with the wisdom of a generation of 'old hand' pilots, built into its software. It would monitor the data bus on a modern aircraft and offer subtle cues (or even stronger ones) that would draw attention to out of tolerance parameters to enhance situational awareness.

To those who cry-No, not another %*(#@& system, I say that we are already marching down the automation road, and there is no turning back. Let us at least learn how to make automation more human friendly.

There is no sense in allowing the strong, silent partner in the cockpit to be unable to communicate key information.

BOAC 24th June 2012 15:24


I think we (collectively) can figure out ways to draw attention to a particular indication when computers recognize abnormal operation. What we might do to help pilots in general and automation dependent pilots in particular is have another system that helps direct their attention to crucial parameters that need correction. This could be a highly engineered system with the wisdom of a generation of 'old hand' pilots, built into its software. It would monitor the data bus on a modern aircraft and offer subtle cues (or even stronger ones) that would draw attention to out of tolerance parameters to enhance situational awareness.
possibly, but what is wrong with learning to fly as a system? As far as "subtle cues (or even stronger ones)" goes, I would recommend a spring-loaded boxing glove inset into both P1 and P2 main panels with an associated audio 'alors, stupide' and a glass case inside which could be a real pilot for emergency use only, of course. :ugh:

OK465 24th June 2012 16:47


Now, you do know that some monkeys have been trained to use them!
It would appear that they prefer the political blog sites and would be unlikely to post to PPRuNe.

But I guess you never know...:eek:

RetiredF4 24th June 2012 17:42


machinbird
AF447's crew needed to have their attention drawn initially to their altitude and then to their pitch attitude. Later, they needed to understand their angle of attack, and finally they needed to understand their Flight Path Vector and the fact that it was pointed at the ground although the nose was pointed up.
Isnīt that the basic problem of missing airmanship here?
Flying has to do with handling all those items and some others as well in unison, without "target fixation" to a single item. FD bars, FPV, betty bitch, a talking radar altimeter, TAWS, and all those other helpers in a daily pilots life should be exactly that, helpers and not substitutes for bad airmanship.
I know you are familiar with that, our old rhino had nothing of those gimmicks and we did the job and survived like others did. It brings us back to training and expierience. Both seem to be missing big time and will not be restored by another gizmo.

roulishollandais 24th June 2012 18:36


Originally Posted by OK465 #1371
The center piece of this FPV discussion is whether you can have a true, fully inertial FPV, without the requirement for air data inputs, or not.

[...]

You can fail 2 ADR's on a 330 and still have an FPV, but not 3 ADR's, it's not a matter of being reliable or not, it is just flat taken away.

(bolds are mine)

Yes, as Gums showed us, with air data failure, inertial reference would have been enough to save the lifes.

It also concerns immediate corrections of the A330 software.

But modifications need sometimes more difficulties that seeing things "with a fresh eye" (=>HUD G.KLOPFSTEIN).

A more general problem emerges here : Who is responsible of the flight, the Captain, or the Chief engineer, or the automation analyst, or the manufacturer ?

In AF447 flight that may concern the Court...

OK465 24th June 2012 18:45


Isnīt that the basic problem of missing airmenship here?
Is this really a 'lack' of airmanship...or a lapse in airmanship...or just circumstantially 'unpredictable' airmanship on the lower part of the deemed acceptable bell curve?

Two of which are genuinely 'out there' at any given time in any given pilot group (or pick your professional group).

You know what they call the guy who graduates last in his medical school class...

Doctor.

RetiredF4 24th June 2012 18:53


OK465
Is this really a 'lack' of airmanship...or a lapse in airmanship...or just circumstantially 'unpredictable' airmanship on the lower part of the deemed acceptable bell curve?
You know what they call the guy who graduates last in his medical school class..
As we talk about 3 guys in the same cockpit with the same symptoms, wouldnīt that qualify as an epidemic event , Mr. Doctor:)

OK465 24th June 2012 19:03

Take 2 aspirin and call me in the morning.

(3 ex-Phantom guys & an ex-Harrier guy should not be allowed to discuss airmanship without a referee and a linesman. :))

fantom 24th June 2012 20:08

But FOUR ex-Phantom guys beat 1 Harrier guy hands-down.

Machinbird 24th June 2012 22:11


Originally Posted by BOAC
I would recommend a spring-loaded boxing glove inset into both P1 and P2 main panels with an associated audio 'alors, stupide'

OK, that will work in French airliners. What will the English speaking crowd get?:}:E

Seriously, with guys flying intercontinental routes and bagging only 5-7 hours of actual stick time a year, do you really expect them to have the touch at 2 am after their handling skills have had a few years to atrophy?

RetiredF4 24th June 2012 22:25


Machinbird
Seriously, with guys flying intercontinental routes and bagging only 5-7 hours of actual stick time a year, do you really expect them to have the touch at 2 am after their handling skills have had a few years to atrophy?
Imho itīs not a question what we can expect, but what we are entiteled to expect. Those factors should be accounted for by the company, by the training departments and by the regulators. The situation you describe is not an unavoidable must, itīs the unfortunate result of negligence.

Would you like to sit in a cab, where the driver is not used anymore to operate the brakes and the steering wheel?

bubbers44 24th June 2012 22:25

No would be my answer and letting 300 hr pilots be SIC isn't right, they know nothing about what is happening. Competent pilots would not have crashed that night. Would you pull up into a 17 degree climb at FL350 when your performance data said you couldn't climb? They did.

Organfreak 24th June 2012 23:29

@ F4
 
Thank you. Common sense is always to be applauded. :D :D :D

Ian W 25th June 2012 00:12

Automation Surprise
 
Machinbird

We will have to categorize the AF447 crew as having evolved into the new generation of automation dependent pilots, no matter what their original background was.

When things went ugly that night, their adrenaline meters pegged, and their ability to rationally analyze the situation departed. They didn't know where to go to find a handle on their situation. They didn't even have a clue where to start looking.

When you do not have an ability to scan and then rationally analyze what you are seeing, you had better have a stone simple tool to lead you out of the mess you are in or else you are lost. Perhaps the HUD is that tool. Not ever having had the use of one, I really can't offer a recommendation.
Interestingly, this problem has been foreseen but largely disregarded. If you read https://docs.google.com/viewer?url=h...ises.pdf&pli=1
on automation surprises - you will see echoes of comments here and of the progress of the AFR447 incident. The research was done prior to the AFR447 incident - but as is the case with a lot of human factors research it was not fully believed. :sad:

RR_NDB 25th June 2012 02:34

This could be a highly engineered system ...
 
Machinbird::

To enhance situational awareness :ok:

R&D is required to help crew for an improved "scan" (scan of the situation)

IMO this is becoming more complex and AF447 could be a case of "canary in coal mine"

gums 25th June 2012 02:35

Bubbers said it. They didn't have "performance" data available. They had attitude and a myriad of control law reversions and loss of several of the so-called "protections"

I am a dinosaur like several here. I evolved. I never forgot my basic instrument training and drills and never forgot two thousand hours in single seat jets that had primitive instruments. I also found my HUD flight path marker and the pitch lines very valuable displays to cross check with the steam gauges. Now there was a true performance indicator. Actual flight path with respect to the earth. No need for air data or flight directors or auto-whatever. Keep the damned thing on that big "horizon line" and you didn't climb or descend. Over the ocean or the desert at night, that sucker was invaluable.

As with many here, I have serious problems with the airmanship of the new crop. As a nugget, my instructor would hand me "paste-on" doofers to cover all the intruments except the turn/slip indicator, airspeed and altimiter. Them make me fly an ADF approach at a field. True "needle, ball and airspeed". So I was not a pinball wizard, and I never flew a "flight director" system that provided course interception, bank angle steering, etc.( the A-7D doofer sucked, and no one used it) Even original Viper didn't have that. My HUD video shows what we had - a raw display of ILS centerline and glide path. Was up to me to center all the needles.

So I maintain that a simple HUD with pitch lines and velocity vector would be invaluable in IFR or at night over a dark ocean. It would be especially valuable if HAL deemed all the air data, including AoA, unreliable. Hell, I can still tell that I am climbing or staying level or whatever. Don't need AoA. I can see that I am level and can move stick and throttles to stay on that flight path.

Gotta go before I get carried away

BOAC 25th June 2012 07:04


Originally Posted by Machinbird
Post#1390

- refer 'Retired F4' Post#1391.

mm43 25th June 2012 10:11


Imho itīs not a question what we can expect, but what we are entiteled to expect.
As RetiredF4 says, it is the bottom line!:ok:

Tableview 25th June 2012 10:21



Has anyone seen this conspiracy theory about AF447 being shot down by an Iranian SAM? When I was sent the link I assumed it was a sick joke, I'm still not sure, but it seems this character is serious.

The relevant part starts at 1'20".

Edited to add : For the avoidance of doubt, I think this a load of bull and don't for one nanosecond believe in the theory.


All times are GMT. The time now is 06:59.


Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.