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Search: Posts Made By: JJFFC
Showing results 1 to 35 of 37
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Forum: Rumours & News
8th Aug 2011, 22:32
Replies: 470
Views: 150,025
Posted By JJFFC

One pilot deck

At this point, it seems that it would be more interesting for the industry to have a fully automated flight (no hand flight at all) and only one human supervisor very well trained in a very accurate...
Forum: Tech Log
8th Aug 2011, 21:38
Replies: 3,435
Views: 1,665,203
Posted By JJFFC

@JCJEANT : Right Seat vs Left Seat ; how do you manage ?

I apologize if my last post appeared to point out a pilot error again. It is not my point.

My point is that you have two co-pilots with equal rights giving dual inputs.

If the two pilots have...
Forum: Tech Log
7th Aug 2011, 23:03
Replies: 3,435
Views: 1,665,203
Posted By JJFFC

It is not A vs B but PF vs PNF

The chronology below clearly shows that the crash has nothing to do with the pitots tubes, nor the stall warning, nor the sidestick : the LS and the Capt. were fully aware of the stall and of the...
Forum: Tech Log
5th Aug 2011, 15:17
Replies: 3,435
Views: 1,665,203
Posted By JJFFC

The causes are independent of the plane

IMHO The causes are :

1 The decision of the PF to climb, yet the PNF has told him the temp. was to high;
2 The decision of the PF to re take control from the PNF without annoucement and to climb...
Forum: Tech Log
4th Aug 2011, 16:54
Replies: 3,435
Views: 1,665,203
Posted By JJFFC

@Xcitation

I apologize for this emotional response and I wasn't in that plane.

My point is about the PF' action :

2:11:39 : PF re takes control from the PNF witout annoucement

This is not a...
Forum: Tech Log
4th Aug 2011, 15:40
Replies: 3,435
Views: 1,665,203
Posted By JJFFC

The KEY FACTOR

Considering :

2:11:37 : PNF takes controll after the PF having said 'I have lost the plane"

2:11:39 : PF re takes control from the PNF witout annoucement

2:11:42Captain enters
...
Forum: Tech Log
4th Aug 2011, 11:48
Replies: 3,435
Views: 1,665,203
Posted By JJFFC

The adolescent, his brother and his father

Apart from technical issues, let's deal with the psychology and procedures:

- Should the captain have leave his seat to an adolescent yet he had a bad feeling ("Do you "really" have your licence...
Forum: Tech Log
4th Aug 2011, 00:46
Replies: 3,435
Views: 1,665,203
Posted By JJFFC

@DozyWannebe

Thank you :

Your observation is of such an importance regarding the debate with JcJeant and in France that I prefered to have you repeted it.
Forum: Tech Log
4th Aug 2011, 00:43
Replies: 3,435
Views: 1,665,203
Posted By JJFFC

@ JcJeant

I believe that the stall warning has nothing to do with the mental problem of the PF : whatever the stall warning, the PF wanted to nose up and didn't understood why the PNF and the Capt asked him...
Forum: Tech Log
3rd Aug 2011, 23:58
Replies: 3,435
Views: 1,665,203
Posted By JJFFC

@DozyWannebe

Hello DozyWannebe,




What do you mean by:
"this is the only correlation" at 02:12:35 ?
"correct behavior" at 02:12:40 and 02:12:48 ?
I understand that the stall alarm stoped after...
Forum: Tech Log
2nd Aug 2011, 23:27
Replies: 3,435
Views: 1,665,203
Posted By JJFFC

Why did the autopilot disconnected ?

As a result, (TAROM accident see my post above) the Bureau Enquêtes-Accidents recommends:

that a study be launched so that the pilot’s priority over all Automatic Flight Systems is ...
Forum: Tech Log
2nd Aug 2011, 22:17
Replies: 3,435
Views: 1,665,203
Posted By JJFFC

A reflex action

1/ " The statistical data shows that, when confronted by a stall, in 80% of cases, pilots pull back the control column, in a sort of reflex movement, which continues the loss of control."

you can...
Forum: Tech Log
2nd Aug 2011, 09:17
Replies: 3,435
Views: 1,665,203
Posted By JJFFC

The perfect crime ?

Either the PF was insane either he could have commited the perfect crime if AF, AB and the BEA had not spent millions to recover the boxes :

The PF managed - volontarly - to :
1/ Preparation of...
Forum: Tech Log
1st Jun 2011, 22:38
Replies: 3,435
Views: 1,665,203
Posted By JJFFC

spatial disorientation after a stall

Very interesting your mention of the "spatial disorientation"

PS : But for your "AF bashing" it is not necessary ; AF has not to prove it knows how to operate planes since the 1930' ; and the...
Forum: Tech Log
1st Jun 2011, 22:05
Replies: 3,435
Views: 1,665,203
Posted By JJFFC

Pitot tubes reacted to stall rather than to ice after AP disconnected

It is my opinion that after the plane had stalled, the pitot tubes didn't reacted to ice but to the stall and to the fact that the plane was really below 60 and inclined.

Maybe the AC disconnected...
Forum: Tech Log
1st Jun 2011, 21:04
Replies: 3,435
Views: 1,665,203
Posted By JJFFC

Training Training Training...

There is no mystery.

1/ a pilot nose up
2/ he stalled his plane and didn't alert the captain nor did he communicate
3/ he didn't recognize his fault although his instruments gave him all the...
Forum: Tech Log
31st May 2011, 22:26
Replies: 3,435
Views: 1,665,203
Posted By JJFFC

the b$tard sitting next to you

According to you, in the AF447, was the "b$tard" a human factor, the plane or the weather ?
Forum: Tech Log
31st May 2011, 21:28
Replies: 3,435
Views: 1,665,203
Posted By JJFFC

What should a PF bet on : instruments or human thinking ?

Hi Meccano

My point is statistics:


An instrument is 99.99% reliable at min
A pilot is 97% reliable at max (this is why a plane has automatic protections)

The PF on the AF447 sees:
Forum: Tech Log
31st May 2011, 21:08
Replies: 3,435
Views: 1,665,203
Posted By JJFFC

Who design that ?

Who designed this (to create a page nobody can read and wonders why) ?:ugh:

Is it Boeing or Airbus ! :{
Forum: Tech Log
30th May 2011, 22:57
Replies: 3,435
Views: 1,665,203
Posted By JJFFC

Instruments vs the pilot ?

@meccano

I said an instrument is MORE reliable than a pilot.

It is a very very confusing question :

Let's say :

- the instrument is 99.99% reliable.
- the pilot is 97% reliable
Forum: Tech Log
30th May 2011, 21:58
Replies: 3,435
Views: 1,665,203
Posted By JJFFC

Instrumentation error is less likely than stall

Jollin said
Quote:
Doesn't it seem intuitive that if a 200t jet transport has an IAS of < 60kts (and WOW says the plane is in the air), then it...
Forum: Tech Log
29th May 2011, 16:14
Replies: 2,070
Views: 612,099
Posted By JJFFC

To those wondering if the plane could have recover or not

Never-mind to know whether the plane could have recover or not as long as the pilot don't nose down.
Forum: Tech Log
29th May 2011, 12:11
Replies: 3,435
Views: 1,665,203
Posted By JJFFC

Never the computer will prevent you from recovering from a stall

Human factor is the only cause of the stall.

Whatever is the configuration of the computer, when stall warning : nose down.

Never a computer will prevent you from recovering from a stall if you...
Forum: Tech Log
29th May 2011, 09:49
Replies: 2,070
Views: 612,099
Posted By JJFFC

I'm afraid when I read all these comments about speed

Stall has nothing to do with speed : it has to do with angle of attack.

It's incredible to read at all those posts wondering about the speed.

A real pilot earing a stall alarm should not even...
Forum: Tech Log
29th May 2011, 09:33
Replies: 3,435
Views: 1,665,203
Posted By JJFFC

Don't think

"" The statistical data shows that, when confronted by a stall, in 80% of cases, pilots pull back the control column, in a sort of reflex movement, which continues the loss of control.
The aircraft...
Forum: Tech Log
28th May 2011, 22:56
Replies: 3,435
Views: 1,665,203
Posted By JJFFC

Human factor

@Flight Safety:ok:
p29:

An airplane wing can be stalled Any airspeed, any altitude, any attitude
Pilot Tip:
If the angle of attack is greater than the stall angle, the surface will stall....
Forum: Tech Log
28th May 2011, 22:06
Replies: 2,070
Views: 612,099
Posted By JJFFC

Stall warning => nose down or die

"A formal document detailing the rationale for the revision points out: "There have been numerous situations where flight crews did not prioritise [nose-down pitch control] and instead prioritised...
Forum: Tech Log
28th May 2011, 21:42
Replies: 3,435
Views: 1,665,203
Posted By JJFFC

In a test : Any pilot that doesn't nose down earing a stall warning should be fired

@ Flight Safety:ok:

Thank you for your 20:24

Your link :

"A formal document detailing the rationale for the revision points out: "There have been numerous situations where flight crews did...
Forum: Tech Log
28th May 2011, 17:57
Replies: 3,435
Views: 1,665,203
Posted By JJFFC

@ misd-agin

You are fired

As 80% of the pilot considering what is said in the report above :
" The statistical data shows that, when confronted by a stall, in 80% of cases, pilots pull back the...
Forum: Tech Log
28th May 2011, 17:43
Replies: 3,435
Views: 1,665,203
Posted By JJFFC

REPORT on the incident on 24 September 1994 during approach to Orly (94) to the Airb

2 - ANALYSIS

2.1 ATC Actions
The aircraft left its cruise level late, on instruction from the ATC. The IAF, the MEL VOR, was flown over at an indicated speed greater than 300 kt...
Forum: Tech Log
28th May 2011, 15:55
Replies: 3,435
Views: 1,665,203
Posted By JJFFC

What said the BEA

The BEA gave few informations in this may 27 report but one message :

„ the airplane climbed to 38,000 ft,
„ the stall warning was triggered and the airplane stalled,
„ the inputs made by...
Forum: Tech Log
28th May 2011, 14:24
Replies: 3,435
Views: 1,665,203
Posted By JJFFC

Repeat after me

Every mother or wife of a pilot should say every day to her son/husband :

"repeat after me one hundred times : when I hear a stall warning I nose down..."

There is absolutely no reason why the...
Forum: Tech Log
28th May 2011, 14:09
Replies: 3,435
Views: 1,665,203
Posted By JJFFC

@Zorin_75

I have not read in the BEA report that the Pitot had trouble before the first stall alarm ?
Forum: Tech Log
28th May 2011, 13:42
Replies: 3,435
Views: 1,665,203
Posted By JJFFC

Why did the autopilot then auto-thrust disengaged ?

"From 2 h 10 min 05, the autopilot then auto-thrust disengaged and the PF said "I have the controls". The airplane began to roll to the right and the PF made a left nose-up input. The stall "

At...
Forum: Tech Log
28th May 2011, 10:19
Replies: 3,435
Views: 1,665,203
Posted By JJFFC

Less than one minute of problem

We have to wait for the next BEA report.

If the BEA has published such a report where the PF looks like a dumb, it probably means that the BEA has more infos about the PF fault.

I don't believe...
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