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Search: Posts Made By: A33Zab
Showing results 1 to 35 of 39
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Forum: Tech Log
4th Jul 2012, 10:29
Replies: 1,550
Views: 304,402
Posted By A33Zab

Re: Those initial side stick commands again ...

HN39: Thx again!

Considering this as the Proportional and Integrated SS inputs, we need to know values for Ki and Kp to calculate the input to Pitch control channel(THS/Elevator), true or not?
...
Forum: Tech Log
30th Jun 2012, 21:33
Replies: 1,550
Views: 304,402
Posted By A33Zab

@HN39:

"Don't sit down by the packages":ok: (another dutch saying)

From the C* schematic below (Don't know the airliner it belongs to, but in principle it is valid for any FBW airliner) the SAS control...
Forum: Tech Log
30th Jun 2012, 14:18
Replies: 1,550
Views: 304,402
Posted By A33Zab

@HN39:

No sign of 'leading' elevator here:

http://i474.photobucket.com/albums/rr101/Zab999/ss_Elev.jpg
Forum: Tech Log
29th Jun 2012, 18:16
Replies: 1,550
Views: 304,402
Posted By A33Zab

Final AF447 report set to re-ignite safety feud

Flight Global 12:00 28 Jun 2012 (http://www.flightglobal.com/news/articles/final-af447-report-set-to-re-ignite-safety-feud-373527/)
Forum: Tech Log
28th Jun 2012, 15:20
Replies: 1,550
Views: 304,402
Posted By A33Zab

Intresting read of the day:

Loss of control training:

Project Supra / desdemona. (http://www.tno.nl/content.cfm?context=overtno&content=nieuwsbericht&laag1=37&laag2=2&item_id=2012-06-26%2011:08:50.0&Taal=2)

Desdemona...
Forum: Tech Log
15th Jun 2012, 20:29
Replies: 1,550
Views: 304,402
Posted By A33Zab

OK465:

FCOM Procedures 22-10
Forum: Tech Log
15th Jun 2012, 18:45
Replies: 1,550
Views: 304,402
Posted By A33Zab

CONF iture:

Someone knows if this memo is translated into english?

From the available documentation: (AMM FMGEC / EFCS)

AP Operational Conditions:




[/LEFT]
Forum: Tech Log
13th Jun 2012, 15:33
Replies: 1,550
Views: 304,402
Posted By A33Zab

Flavours: 'Vanilla' 1 = Normal Lateral law ...

Flavours:
'Vanilla' 1 = Normal Lateral law
'Vanilla' 2 = Roll DIRECT law & Alternate Yaw law


For ALT1/2A 'alternate stall protection':


The ALTERNATE stall protection is based upon Vc....
Forum: Tech Log
6th Jun 2012, 14:03
Replies: 1,550
Views: 304,402
Posted By A33Zab

Initial FD pitch bar position.

between 02:10:05 and 02:10:07 FD2! (RH PFD) was not engaged.

one second remain, before both FDs were not displayed @02:10:08.
for that second the Nz delta was ~ -.15g....(Nzdemand 1g - Nzactual...
Forum: Tech Log
4th Jun 2012, 18:10
Replies: 1,550
Views: 304,402
Posted By A33Zab

@lyman:

Ok, and that's exactly reason to investigate the seat/armrest position:
Forum: Tech Log
4th Jun 2012, 17:32
Replies: 1,550
Views: 304,402
Posted By A33Zab

The PF does not know where neutral is

implausible with dual cartridges:

http://i474.photobucket.com/albums/rr101/Zab999/ArtRod.jpg
Forum: Tech Log
1st Jun 2012, 10:46
Replies: 1,550
Views: 304,402
Posted By A33Zab

Final Report.

Although not admitted by some, we all know upset was initiated by PF.
Besides the recommondations already published at the publication of IR#3 (AoA indication, FDR, Manual Alt Training) there were...
Forum: Tech Log
31st May 2012, 08:30
Replies: 1,550
Views: 304,402
Posted By A33Zab

Final report announcement.

BEA press release 30/05/2012 (http://www.bea.aero/en/enquetes/flight.af.447/pressrelease30may2012.en.php):


The BEA will publish the Final Report of the safety investigation on Thursday, 5...
Forum: Tech Log
29th May 2012, 00:50
Replies: 1,550
Views: 304,402
Posted By A33Zab

@ OK465 & CONF:

Agreed! ALT2 as function of FCPCs and FD Bars as function of FMGEC.

FWIW, FD Bars can be displayed on ground (no fwd speed) by selecting a V/S.
Pitch bar is limited to a value ~ +1000 ft/s even...
Forum: Tech Log
20th May 2012, 16:47
Replies: 1,550
Views: 304,402
Posted By A33Zab

@RetiredF4:

I know, the only refrence made is in

FCOM 1.27.00 Description:

"Mechanical control from the pitch trim wheel has priority over electrical control."

and

Flight controls normal law.
Forum: Tech Log
20th May 2012, 15:25
Replies: 1,550
Views: 304,402
Posted By A33Zab

@HN39:

It remains Nz law, so the delta between NzCmd and NzAct = FD bar position. e.g. if you are on commanded trajectory the FD pitch bar will be neutral. (NZCmd = NzAct)

AMM:




You need to...
Forum: Tech Log
20th May 2012, 12:53
Replies: 1,550
Views: 304,402
Posted By A33Zab

@CONF iture:

Then keep it simple:

Normal, Alternate(PROT LOST) & Direct(PROT LOST)

Forget about the 'grigri' you still have in whatever Alternate....it states PROT LOST....that is what is the key in the...
Forum: Tech Log
17th May 2012, 18:44
Replies: 1,550
Views: 304,402
Posted By A33Zab

@CONF:

Excuse me, autoflight is complicated and information considering this issue is very fragmented, I am trying to filter and report the relevant bits and pieces related to this specific case not any...
Forum: Tech Log
17th May 2012, 15:08
Replies: 1,550
Views: 304,402
Posted By A33Zab

@Dozy:

Here I don't agree,

pitch bar guidance is limited @ +/-22.5° of pitch, 50° FPA, if that limit reflects the +/-6000ft VS limit it would be definitely above 15°.

Once again this is IF!! not...
Forum: Tech Log
17th May 2012, 00:40
Replies: 1,550
Views: 304,402
Posted By A33Zab

@HN39 and OK465:

I would say YES, but VLS information is somewhat conflicting and at least not clear.

FMGEC supplies GW/Cg to FCPC for calculation of Vs1G, FCPC returns this to FMGEC for VLS calculation.
...
Forum: Tech Log
16th May 2012, 11:54
Replies: 1,550
Views: 304,402
Posted By A33Zab

@HN39:

Not considered as nitpicking, thx for rectifying my wrong interpolation.

246kts accepted as VLS....
Forum: Tech Log
16th May 2012, 10:44
Replies: 1,550
Views: 304,402
Posted By A33Zab

@CONF:

Correct, FD needs 2 airspeeds. (FE for speedtargets calculations only 1)

@ 02:10:42 FD was transitonary available; IMO ADR2 was increasing and crossing the ADR 3 airspeed (~transitonary).
@...
Forum: Tech Log
16th May 2012, 00:00
Replies: 1,550
Views: 304,402
Posted By A33Zab

@HN39; CONF iture:

@2 h 10 min 47: Selected V/S equals V/S ~ 1500ft/min as CONF correctly stated.

The first 10s the FD bars will be flashing, just before STALL it would have been steady.
During the STALL (negative...
Forum: Tech Log
12th May 2012, 20:33
Replies: 1,550
Views: 304,402
Posted By A33Zab

@Lyman:

This is Lyman's logic!.......very well corrected by mm43:ok:

Compare for differences and similarities:

F-GLZU A340-300 22 july 2011:

Avherald Link...
Forum: Tech Log
11th May 2012, 11:20
Replies: 1,550
Views: 304,402
Posted By A33Zab

@aguadalte & CONF iture:

The automation was made less intelligent with ALT LAW (PROT LOST),
the human (pilot) was in control...but failed.

Conclusion?......green light for MORE automation.
Forum: Tech Log
8th May 2012, 22:21
Replies: 1,550
Views: 304,402
Posted By A33Zab

@HN39:

A late reply on Your post #506 (http://www.pprune.org/tech-log/482356-af-447-thread-no-8-a-26.html#post7177438) concerning the BUSS.
I'm behind with all the posts.

Maybe this image is of some...
Forum: Tech Log
7th May 2012, 17:35
Replies: 1,550
Views: 304,402
Posted By A33Zab

@Lyman:

Neither was I,

If experts are convinced the apparatus didn't fail, there is nothing wrong with protecting your business.
Boeing will do exactly the same when appropriate to Boeing.

If a...
Forum: Tech Log
6th May 2012, 16:55
Replies: 1,550
Views: 304,402
Posted By A33Zab

@RRR:

EgyptAir 990 (http://www.ntsb.gov/doclib/reports/2002/AAB0201.pdf) is indeed I did refer to.

I know it was initiated by FO but still the captain was unable to recover the situation.

Maybe...
Forum: Tech Log
6th May 2012, 11:27
Replies: 1,550
Views: 304,402
Posted By A33Zab

@RRR:

As I recently understand from the 757/767, despite the 'interconnected' yokes, the possibily of splitted RH/LH Elevator surface control doesn't seem to be a good idea either.

May hope that the...
Forum: Tech Log
6th May 2012, 08:53
Replies: 1,550
Views: 304,402
Posted By A33Zab

SS feedback / interconnection.

Not as much weight and complexity as this:

787 Controls
http://i474.photobucket.com/albums/rr101/Zab999/787Yoke.jpg



Maybe IF SS feedback/interconnection was available it would not have...
Forum: Tech Log
5th May 2012, 13:15
Replies: 1,550
Views: 304,402
Posted By A33Zab

@RetiredF4

Will be answered !? soon.

BEA Press release 13 October 2011:
Forum: Tech Log
4th May 2012, 23:08
Replies: 1,550
Views: 304,402
Posted By A33Zab

@mm43

Exact!
I fully agree with you.:ok:

Concerning your suggestion, maybe a compromize will be acceptable for CONF?

Show the PF SS on the PNF display, so PF will not be distracted by information...
Forum: Tech Log
2nd May 2012, 17:20
Replies: 1,550
Views: 304,402
Posted By A33Zab

Sorry to correct you again: STOW (v),...

Sorry to correct you again:

STOW (v), STOWS,
STOWED,

STOWED:
To move out of a position of operation into a position of storage.
NOTE: Use for thrustreverser or drogue chute operations...
Forum: Tech Log
2nd May 2012, 14:43
Replies: 1,550
Views: 304,402
Posted By A33Zab

@Lyman:

Since english is not my native tongue, I have to use:

SIMPLIFIED TECHNICAL ENGLISH
Specification ASD-STE100
European Community Trade Mark No. 004901195
International specification
for the...
Forum: Tech Log
29th Apr 2012, 00:37
Replies: 1,550
Views: 304,402
Posted By A33Zab

#HN39:

Indeed!,and IMO the Ny in ALT2 (Yaw = ALTERNATE YAW LAW) is used for indication of the PFD sideslip indication. (+/- 0.3g max).

The rudder deflection in ALT2 (ALTERNATE YAW) is only a function of...
Showing results 1 to 35 of 39
 
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