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Search: Posts Made By: _Phoenix
Showing results 1 to 35 of 41
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Forum: Rumours & News
22nd Feb 2016, 02:57
Replies: 3,923
Views: 4,470,523
Posted By _Phoenix

In XL 888 crash, the FBW changed law from normal...

In XL 888 crash, the FBW changed law from normal to direct, because landing gear was down. The THS was at max. nose up position in manual mode. The elevator moved accordingly to sidestick input,...
Forum: Rumours & News
22nd Dec 2015, 02:43
Replies: 3,923
Views: 4,470,523
Posted By _Phoenix

Puzzle picture 1/2 stall recognition, 1/2 THS position awareness

Maybe both, more situational awareness training combined with design improvements are needed. At high altitude, it is crucial to distinguish between overspeed and stall. For stall condition, how...
Forum: Rumours & News
19th Dec 2015, 00:29
Replies: 3,923
Views: 4,470,523
Posted By _Phoenix

@FDMII, neither me intend to be instructive or to...

@FDMII, neither me intend to be instructive or to initiate a polemic.
The hydraulic fluid does not interpret the pilot inputs as flight computers determine the actuators movement

Maybe the...
Forum: Rumours & News
18th Dec 2015, 05:03
Replies: 3,923
Views: 4,470,523
Posted By _Phoenix

"Manual flying" is just an illusion. Basically,...

"Manual flying" is just an illusion. Basically, pilot sends impulses to computer: up/down, left/right, the rudder is a footrest. So the aircraft is already designed to transform a pilot in idiot,...
Forum: Rumours & News
17th Dec 2015, 00:54
Replies: 3,923
Views: 4,470,523
Posted By _Phoenix

Hey Gums, see the graph in reference below at...

Hey Gums, see the graph in reference below at page 112.
http://www.bea.aero/docspa/2008/d-la081127.en/pdf/d-la081127.en.pdf

At the bottom of page, the flight law switched from normal to direct...
Forum: Rumours & News
13th Dec 2015, 21:48
Replies: 3,923
Views: 4,470,523
Posted By _Phoenix

Thanks Gums! Soon CS100 will get the type...

Thanks Gums! Soon CS100 will get the type certificate, then more data will be available publicly (in Canada or Tech Log )
Forum: Rumours & News
13th Dec 2015, 15:48
Replies: 3,923
Views: 4,470,523
Posted By _Phoenix

Yes, the pilot is aware of pushing the envelope...

Yes, the pilot is aware of pushing the envelope limits (tactile soft stops), so let him go through it in order to clear a cumulus granitus or the tree tops or allow to flare the plane over Hudson....
Forum: Rumours & News
13th Dec 2015, 13:59
Replies: 3,923
Views: 4,470,523
Posted By _Phoenix

I subscribe to this. Moreover, regarding KISS...

I subscribe to this.
Moreover, regarding KISS design, in my previous posts my intention is to show the necessity to clearly distinguish between overspeed vs stall, at high altitude, then the...
Forum: Rumours & News
12th Dec 2015, 17:13
Replies: 3,923
Views: 4,470,523
Posted By _Phoenix

Clandestino, Stall and overspeed warnings...

Clandestino,

Stall and overspeed warnings together happen in real life too:
Incident: LOT B763 near Toronto on Jun 19th 2009, unreliable airspeed, simultaneous overspeed and stall warning...
Forum: Rumours & News
12th Dec 2015, 16:16
Replies: 3,923
Views: 4,470,523
Posted By _Phoenix

WOW! Bingo! So the stall warning goes off and we...

WOW! Bingo! So the stall warning goes off and we all would say(including me) Nah! The PFD picture shows overspeed (then AOA ~0deg), so the appropriate response is: PULL UP! :ok::ok: ->from both...
Forum: Rumours & News
11th Dec 2015, 05:23
Replies: 3,923
Views: 4,470,523
Posted By _Phoenix

SS has been held back because of the overspeed...

SS has been held back because of the overspeed mindset, also the overspeed is accompanied with buffet and awful aerodynamic noise. The FO PFD was not recorded in the FDR. The only reasonable...
Forum: Rumours & News
5th Dec 2015, 19:31
Replies: 3,923
Views: 4,470,523
Posted By _Phoenix

alf5071h, I agree with your comments. ...

alf5071h,
I agree with your comments.
Either I, didn't find any reference to longitudinal trim in the report, nor in the FDR data. That's strange.

FDMII,
The THS trim position is a function...
Forum: Rumours & News
5th Dec 2015, 06:50
Replies: 3,923
Views: 4,470,523
Posted By _Phoenix

why freeze the trim wheels, why spin back during stall?

Does anyone of you know?

The video below shows an interesting simulation of high altitude stall.
Stall begins at 1:30, then trim wheels freeze, for g <0.5...
Now look at 2:15, while the...
Forum: Rumours & News
3rd Dec 2015, 08:21
Replies: 3,923
Views: 4,470,523
Posted By _Phoenix

It wasn't mechanical backup = complete loss of...

It wasn't mechanical backup = complete loss of electrical power
On the other hand, AOA was constantly above 30 deg.
Forum: Rumours & News
3rd Dec 2015, 08:09
Replies: 3,923
Views: 4,470,523
Posted By _Phoenix

I'm quite sure you or any bus driver here know...

I'm quite sure you or any bus driver here know the answer. Ok I'm gonna say it loudly, if you wish.
See Airbus 319-320-321 FCTM or in this final report at page 78:
Pitch alternate with load factor...
Forum: Rumours & News
3rd Dec 2015, 04:03
Replies: 3,923
Views: 4,470,523
Posted By _Phoenix

Simply, they were doomed there. Less than a...

Simply, they were doomed there.
Less than a minute after AP disconnect, at 38000 ft.

Nobody could save that plane using the primary controls only (stick rudder and thrust) :}
(hint: abnormal...
Forum: Rumours & News
2nd Dec 2015, 03:47
Replies: 3,923
Views: 4,470,523
Posted By _Phoenix

STKPF/STKPC

I'm looking at blue graph STKPF (Sidestick Pitch First Officer) at page 51 and I wonder again... How is it possible for a fully qualified FO to pull-up like that, for long 3 minutes?
Also, it's...
Forum: Rumours & News
1st Dec 2015, 06:30
Replies: 3,923
Views: 4,470,523
Posted By _Phoenix

Again, blame the dead - flight crew action...

Again, blame the dead - flight crew action resulted in inability to control the aircraft ...


Final report is released:
http://kemhubri.dephub.go.id/knkt/ntsc_home/ntsc.htm
Forum: Rumours & News
30th Aug 2015, 12:53
Replies: 3,923
Views: 4,470,523
Posted By _Phoenix

There is one more day to honor that promise.

There is one more day to honor that promise.
Forum: Rumours & News
8th Jul 2015, 00:25
Replies: 3,923
Views: 4,470,523
Posted By _Phoenix

Lonewolf, ...

Lonewolf,
http://www.mediafire.com/convkey/2405/ucaki14s56s5yq5zg.jpg
Forum: Rumours & News
7th Jul 2015, 02:30
Replies: 3,923
Views: 4,470,523
Posted By _Phoenix

"AirAsia type of accident can happen anywhere in...

"AirAsia type of accident can happen anywhere in the world today!"
Too many similar accidents and incidents point on pilot skills and automation adiction, but personally I think that the main issue...
Forum: Rumours & News
5th Jul 2015, 15:32
Replies: 3,923
Views: 4,470,523
Posted By _Phoenix

nice video but 1/3 facts 2/3 speculations

papOh_rZTh4
Forum: Rumours & News
18th Feb 2015, 23:12
Replies: 3,923
Views: 4,470,523
Posted By _Phoenix

A0283, By the way, the article in...

A0283,


By the way, the article in discussion states:

http://www.mediafire.com/convkey/d9a6/g51uc9eu2jday61zg.jpg

Training wheels,
Also the recovered tail section shows two major ruptures:...
Forum: Rumours & News
18th Feb 2015, 03:31
Replies: 3,923
Views: 4,470,523
Posted By _Phoenix

@skyhighfallguy ...

@skyhighfallguy

https://ekliptika.wordpress.com/tag/airasia/
automatic translation from Indonesian:
"124 minutes were recorded on the CVR until the final seconds before the disaster. Revealed...
Forum: Rumours & News
18th Feb 2015, 02:52
Replies: 3,923
Views: 4,470,523
Posted By _Phoenix

I have a feeling that this accident will become...

I have a feeling that this accident will become more puzzling once FDR available.
The plane left the normal law, that's clear.
Aircraft entered the stall and then probably a spiral dive that PF or...
Forum: Rumours & News
14th Feb 2015, 05:01
Replies: 3,923
Views: 4,470,523
Posted By _Phoenix

From an image of wreckage, it seems that the...

From an image of wreckage, it seems that the screw was snatched during the impact. It remained attached to THS
http://www.mediafire.com/view/1hh6qghm8m58oqb/jackscrew.jpg
Forum: Rumours & News
4th Feb 2015, 03:45
Replies: 3,923
Views: 4,470,523
Posted By _Phoenix

40° AOA is quite extreme and not sustainable, but...

40° AOA is quite extreme and not sustainable, but with THS at 25°-30° AOA, reduced thrust, the elevator at max ND would give a ND momentum



That's true for Perpignam, but in 4.5 minutes...
Forum: Rumours & News
4th Feb 2015, 03:11
Replies: 3,923
Views: 4,470,523
Posted By _Phoenix

RetiredF4, You nailed it right in the sensitive...

RetiredF4,
You nailed it right in the sensitive spot :D
FBW software should ensure safe algorithm operation during entry into and recovery from a stall condition, THS trim function should be...
Forum: Rumours & News
2nd Feb 2015, 02:31
Replies: 3,923
Views: 4,470,523
Posted By _Phoenix

http://www.mediafire.com/convkey/cf07/7wquq4my7srz...

http://www.mediafire.com/convkey/cf07/7wquq4my7srz147zg.jpg

The plane climbed from 32,000 feet to about 37,000 feet in 30 seconds before entering stall.
The stall warning alarm sounded for four...
Forum: Rumours & News
1st Feb 2015, 02:56
Replies: 3,923
Views: 4,470,523
Posted By _Phoenix

"my aircraft ?"

Thousands of stick and rudder hours would have helped them in anyway? or rather ab philosophy requires master knowledge of computer operator?
Because...
Forum: Rumours & News
24th Jan 2015, 04:32
Replies: 3,923
Views: 4,470,523
Posted By _Phoenix

It seems that the radar plot is not too accurate ...

It seems that the radar plot is not too accurate
Time and location does not match the speed
http://www.mediafire.com/convkey/8d2d/udsevj8iv8eb03zzg.jpg
Forum: Rumours & News
24th Jan 2015, 02:08
Replies: 3,923
Views: 4,470,523
Posted By _Phoenix

It works well at low altitude, at tropopause...

It works well at low altitude, at tropopause maybe only a F16 pilot would try it
In 1991 a German crew finally learned this technique in "the hard way" :eek:...
Forum: Rumours & News
23rd Jan 2015, 02:42
Replies: 3,923
Views: 4,470,523
Posted By _Phoenix

Someone said that would be nice to overlay the...

Someone said that would be nice to overlay the weather over the trajectory plot before crash.
See in link below an approximate, the time is 23:00 UTC and the flight path is the small yellow curve...
Forum: Rumours & News
11th Jan 2015, 04:43
Replies: 3,923
Views: 4,470,523
Posted By _Phoenix

Indonesian searchers believe crashed AirAsia's...

Indonesian searchers believe crashed AirAsia's fuselage found
Forum: Rumours & News
11th Jan 2015, 02:50
Replies: 3,923
Views: 4,470,523
Posted By _Phoenix

Leightman 957, See imagine at better resolution...

Leightman 957,
See imagine at better resolution and personal presumed forces of impact with sea
http://www.mediafire.com/convkey/27f9/weqc928vb2la6auzg.jpg
Showing results 1 to 35 of 41
 
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