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Search: Posts Made By: A33Zab
Showing results 1 to 35 of 53
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Forum: Tech Log
9th Jul 2011, 12:05
Replies: 1,069
Views: 281,389
Posted By A33Zab

@HN39:

HN39,

Normally roll is of no influence because average is used between LH and RH static ports, however with such large roll oscillations and AOA angle?
...
Forum: Tech Log
9th Jul 2011, 10:00
Replies: 1,069
Views: 281,389
Posted By A33Zab

@MM43

Very helpfull drawing with a view on all the angles involved.

But 13° ANU isn't equal to THS angle. A(NU) is for Aircraft nose up.

You can get the correct THS angle from this diagram, as...
Forum: Tech Log
9th Jul 2011, 09:02
Replies: 1,069
Views: 281,389
Posted By A33Zab

@Takata:

I agree this WRN will be displayed (after 10s monitoring) in RT on the EWD.
If you are right about the transmitting time, my theory - silenced STALLSTALL while AOA >35° (AOAsw = 10.8°); THS ANU...
Forum: Tech Log
8th Jul 2011, 18:26
Replies: 1,069
Views: 281,389
Posted By A33Zab

@henra:

+1

NAV ADR DISAGREE needs 10s monitoring to trigger.

ACARS msg was received @02:12:51; CMC has 60s maximum to correlate
to any failure message ~02:11:51 - 10s monitoring = ~02:11:41.

...
Forum: Tech Log
8th Jul 2011, 18:07
Replies: 1,069
Views: 281,389
Posted By A33Zab

@AZR:

Correct, F/CTL page was called @ ~2:10:16 due to F/CTL RUD TRV LIM FAULT.
SD returns to normal Cruise page (if no other pages in queue) after confirmation by crew and clearing ECAM message.
...
Forum: Tech Log
8th Jul 2011, 16:10
Replies: 1,069
Views: 281,389
Posted By A33Zab

@ Mr O

If speed itself < 30Kts it set itself to NCD.
Why? the only reason mentioned in the docs. is due to -accuracy-.
---
The 2nd STALLSTALL started @ 2:10:51 AOA 6° (AOAsw 5.2° later 10.8°)
and...
Forum: Tech Log
8th Jul 2011, 14:11
Replies: 1,069
Views: 281,389
Posted By A33Zab

@PA 18 151: Clearly NO! As is...

@PA 18 151:



Clearly NO!
As is advertised: This law ensures that the flight control law will never hinder aicraft recovery, after the recovery (within the abnormal att. values) autotrim...
Forum: Tech Log
8th Jul 2011, 11:40
Replies: 1,069
Views: 281,389
Posted By A33Zab

@ JCJ:

AMM describes the Pitch Nz law as:

1/ Nz Law

This FCPC law is the normal pitch law engaged during the flight phase.
The pilot commands a load factor via a pitch action on the side stick....
Forum: Tech Log
8th Jul 2011, 09:53
Replies: 1,069
Views: 281,389
Posted By A33Zab

@BOAC:

A330 apparently requires a speed signal.


Excuse me for not writing 'the perfectly english' which you only understand, next posts - if any - will be adressed to all but you. I can only write...
Forum: Tech Log
8th Jul 2011, 09:06
Replies: 1,069
Views: 281,389
Posted By A33Zab

@BOAC:

Don't think so because the remark has nothing to do with the FCTL STAB CTL FAULT but with elevator authority to counteract a certain THS position.

I failed here:

---


What do you need...
Forum: Tech Log
7th Jul 2011, 22:43
Replies: 1,069
Views: 281,389
Posted By A33Zab

@ somebody who asked manual pitch trim rate.

One stroke on the Trimwheel ~0.65° THS movement. (2 hydr. motors B+Y available)
Forum: Tech Log
7th Jul 2011, 22:20
Replies: 1,069
Views: 281,389
Posted By A33Zab

@ BOAC and others:

I did try to clarify to prevent discussion:



But I get the impression I failed..........

This remark is given in the mentioned FCOM 3.....when a FCTL STAB CTL FAULT is present. This was...
Forum: Tech Log
7th Jul 2011, 09:17
Replies: 1,069
Views: 281,389
Posted By A33Zab

@ CS:

Sorry Chris, still not convinced, maybe (for A330) if you ask P1 or P2 to move to the side and lean forward L or R from P3 seat?

Below A330 for sure!
...
Forum: Tech Log
7th Jul 2011, 07:50
Replies: 1,069
Views: 281,389
Posted By A33Zab

@ BOAC:

Its stated in FCOM Vol 3, Supplementary Techniques, Flight Controls, Flight Mode. (3.04.27 P3).


I think you understand but for the ones which do not:

Pls don't consider the THS being...
Forum: Tech Log
7th Jul 2011, 00:13
Replies: 1,069
Views: 281,389
Posted By A33Zab

@ CS:

View from Seat P3. (I linked PJ2s picture because you can see the trim wheel being above the indication)



http://i474.photobucket.com/albums/rr101/Zab999/TWA333rdSeat.jpg
Forum: Tech Log
6th Jul 2011, 22:30
Replies: 1,069
Views: 281,389
Posted By A33Zab

Other question answered.......

These statements will clarify some questions asked.

The system compensates almost 100% for trim changes, due to speed and configuration changes. Trim
changes, due to thrust changes, can be too...
Forum: Tech Log
6th Jul 2011, 22:17
Replies: 1,069
Views: 281,389
Posted By A33Zab

@ GY:

Agreed for the 30s, but from his position it will be difficult to see the SS pitch inputs (maybe the L/R inputs to fight the roll oscillations).
Required some time to be informed what took place in...
Forum: Tech Log
6th Jul 2011, 21:07
Replies: 1,069
Views: 281,389
Posted By A33Zab

@ HN39

Just for the record.
Totally agree with this.



I like to add that 2nd Speed drop took place around @ 2:11:50
and triggered the NAV ADR DISAGREE message after 10 sec and
FPV Flags on...
Forum: Tech Log
6th Jul 2011, 19:11
Replies: 1,069
Views: 281,389
Posted By A33Zab

In respect of Capt, IMO he realized exact what...

In respect of Capt, IMO he realized exact what was going on!
After entering cockpit ordered or pulled T/L into IDLE and ordered ND inputs! see LINK...
Forum: Tech Log
6th Jul 2011, 18:09
Replies: 1,069
Views: 281,389
Posted By A33Zab

ADIRU.

In addition to questions raised and answers given.

The lowest speed value on the speed scale = 60 knots.
CAS set itself on 0 and invalid (NCD) if CAS < 30 Knots (SPD FLAG).
MACH will be 0 and...
Forum: Tech Log
5th Jul 2011, 12:01
Replies: 1,069
Views: 281,389
Posted By A33Zab

@CONF iture:

I know and maybe I was not clear in the question, with excuses.

I tried to figure out what would be the initial movement from the Thrust locked condition. as this was the first ECAM drill "THR...
Forum: Tech Log
5th Jul 2011, 10:02
Replies: 1,069
Views: 281,389
Posted By A33Zab

@ auraflyer:

O no, even as engineer I don't think a crew do like (and has the time) to read a novel on his ECAM.

The rules are simple:

NORMAL = I can do with the stick what I want.
ALTERNATE = I have to...
Forum: Tech Log
5th Jul 2011, 09:45
Replies: 1,069
Views: 281,389
Posted By A33Zab

Pitch / Thrust in UAS.

Finally found it, it is in BEA report #1 page 122
It is in french so I skipped it in previous reading:

"Procedures anormales"
Urgence / secours

CONFIGURATION LISSE

Au dessus de 190T; FL...
Forum: Tech Log
5th Jul 2011, 00:08
Replies: 1,069
Views: 281,389
Posted By A33Zab

Automation

Stick left or right will do it for A. or like any other brand let AP handle this. Already in the 70's you were flying 'Fooled' by Wire and once they remove your 'beloved' yoke and the cable loop...
Forum: Tech Log
3rd Jul 2011, 23:00
Replies: 1,069
Views: 281,389
Posted By A33Zab

RR_NDB: RT? Why not make the demand:...

RR_NDB:


RT? Why not make the demand: PREDICTIVE!

I already mentioned before and is repeated by others:

They (FCPCs) know when the speed is missing, they don't know the probes iced up....
Forum: Tech Log
3rd Jul 2011, 04:01
Replies: 1,069
Views: 281,389
Posted By A33Zab

Chronology of events @ 5 sec interval.

Here an updated chronology:

Thx to HN39 which pointed me on the fact I used the first released BEA update which did contain some errors, e.g. switched AOA angle with Pitch angle.

I used all...
Forum: Tech Log
2nd Jul 2011, 23:11
Replies: 1,069
Views: 281,389
Posted By A33Zab

Gee sensing for FBW systems

Indeed the Nz is provided by - state of the art - IR part of ADIRU.

2 separate vertical accelerometers (and Lateral accelerometers) are used for turbulence damping.
But will be used by FCPCs in...
Forum: Tech Log
2nd Jul 2011, 21:47
Replies: 1,069
Views: 281,389
Posted By A33Zab

The Interface

Well there is task sharing and a few rules,

* PF Fly, Navigate & Communicate.
* PNF Manage failure on PF command.

* Secured, Guarded switches and Clear P/B to be confirmed before switching....
Forum: Tech Log
2nd Jul 2011, 19:49
Replies: 1,069
Views: 281,389
Posted By A33Zab

CONF iture:

Edit: NOT Confirmed! (did read AOA stall warning i.s.o. protection)

Stall Warning:
If CAS <60Kts AOA = set to 0 degrees and System status matrix (SSM) set to NCD.
(Changed to 30 Kts if 'BUSS'...
Forum: Tech Log
2nd Jul 2011, 11:28
Replies: 1,069
Views: 281,389
Posted By A33Zab

Remarkable, Engines have only 2 channels for...

Remarkable, Engines have only 2 channels for control, 2 sensors for each parameter; B777 has only 2 AOA vanes fitted.

What happened with redundancy here? even more 'ridiculous' design or clever...
Forum: Tech Log
29th Jun 2011, 22:10
Replies: 1,069
Views: 281,389
Posted By A33Zab

@ Conf:

No, not that I am aware of.
It's nowhere mentioned in the manuals.

On ground Autotrim is disabled (Ground Direct Law) so we are unable to simulate.

IMO the THS was arriving @ 13 Up when all...
Forum: Tech Log
29th Jun 2011, 21:46
Replies: 1,069
Views: 281,389
Posted By A33Zab

@ Peter H:

Described monitoring is task of the installed Probe Heat Computer (3x)

I realize these probes failed (iced up) more on A. than other A/C recently, while there only few suppliers (also GOODRICH...
Forum: Tech Log
29th Jun 2011, 19:38
Replies: 1,069
Views: 281,389
Posted By A33Zab

@ Gums:

Why does the system, not the pilot, try to maintain an AoA that is not necessary?





HIGH ANGLE-OF-ATTACK (AOA) PROTECTION
High AOA protection enables the PF to pull the sidestick full...
Forum: Tech Log
29th Jun 2011, 18:01
Replies: 1,069
Views: 281,389
Posted By A33Zab

Redundancy concept

The answer might be in your question...........Heating ~120° C, selfregulating heater, 115V AC.

How much hotter should it be? +1 or red hot, temperature just below pitot meltdown?
What about...
Forum: Tech Log
29th Jun 2011, 10:14
Replies: 1,069
Views: 281,389
Posted By A33Zab

Ridiculous design (AS issue)

RR_NDB:

Before calling this a ridiculous design.....

What are your suggestions how it ought to be?
Maybe AIB (or any other airplane manufacturer) can learn from you?
Showing results 1 to 35 of 53
 
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