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Forum: Tech Log

30th May 2011, 18:32

Replies: 2,070

AF447 Thread No. 3

Views: 613,550

Posted By peplum

40° AoA, read a such value and i guaranty the...

40° AoA, read a such value and i guaranty the guy would have push all his weight on the stick ..

Forum: Tech Log

30th May 2011, 18:13

Replies: 2,070

AF447 Thread No. 3

Views: 613,550

Posted By peplum

AoA indicator, as on Boeing would have save them....

AoA indicator, as on Boeing would have save them.

Plane knowed it but was censured for pilots.
Investigators talk about it almost every line of report, post mortem.

But it has been censured...

Forum: Tech Log

28th May 2011, 15:19

Replies: 2,070

AF447 Thread No. 3

Views: 613,550

Posted By peplum

Do the inboard weather radar can estimate air...

Do the inboard weather radar can estimate air speed ?

Forum: Tech Log

28th May 2011, 12:54

Replies: 2,070

AF447 Thread No. 3

Views: 613,550

Posted By peplum

ok pitch -10 Toga and you'll soon see if that all...

ok pitch -10 Toga and you'll soon see if that all that counts :D

Forum: Tech Log

28th May 2011, 12:37

Replies: 2,070

AF447 Thread No. 3

Views: 613,550

Posted By peplum

I would say both. pitching 0° at 0 kts means...

I would say both. pitching 0° at 0 kts means nothing.

Forum: Tech Log

28th May 2011, 12:29

Replies: 2,070

AF447 Thread No. 3

Views: 613,550

Posted By peplum

I do not pretend to be a pro. I'm not. That's not...

I do not pretend to be a pro. I'm not. That's not a pilot question. In life, whatever the job you have. When one parameter is vital for you and you don't have it anymore you have to evaluate it.
...

Forum: Tech Log

28th May 2011, 12:17

Replies: 2,070

AF447 Thread No. 3

Views: 613,550

Posted By peplum

I've read the stall alert is invalid when AoA is...

I've read the stall alert is invalid when AoA is too high bevcause AIR speed measure cannot be intrepated as valid.

Why did they sustain a such AoA ? Do the plane displays (sufficuently) it on...

Forum: Tech Log

28th May 2011, 12:06

Replies: 2,070

AF447 Thread No. 3

Views: 613,550

Posted By peplum

What are you looking for, Vs @FL370 ?

What are you looking for, Vs @FL370 ?

Forum: Tech Log

28th May 2011, 12:01

Replies: 2,070

AF447 Thread No. 3

Views: 613,550

Posted By peplum

On A320 it does. GS and TAS. They were 3...

On A320 it does. GS and TAS.

They were 3 pilots. None of them had this simple idea to read the ground speed. Damn, the wind would be at max 75kts (may be more we don't really care).

Open the...

Forum: Tech Log

28th May 2011, 11:57

Replies: 2,070

AF447 Thread No. 3

Views: 613,550

Posted By peplum

You're right. I'm very surprised to not read in...

You're right. I'm very surprised to not read in the official media the air speed evaluation from the ground speed. I'm quite sure that it's too complicated to recognize the pilots were too clueless...

Forum: Tech Log

28th May 2011, 11:46

Replies: 2,070

AF447 Thread No. 3

Views: 613,550

Posted By peplum

False. IAS is OFF but GS is OK. Air speed can...

False. IAS is OFF but GS is OK.
Air speed can be sufficiently evaluated from ground speed to adjust thrust and do not stall.

Forum: Tech Log

28th May 2011, 11:39

Replies: 2,070

AF447 Thread No. 3

Views: 613,550

Posted By peplum

We're not on a river but a jet in the atmosphere....

We're not on a river but a jet in the atmosphere.

The wind could be evaluated at max +-75kts in this cas. Even if you add or remove 75kts you're always in the flight domain of the plane using my...

Forum: Tech Log

28th May 2011, 11:26

Replies: 2,070

AF447 Thread No. 3

Views: 613,550

Posted By peplum

Why did they not rely on the ground speed to...

Why did they not rely on the ground speed to regulate their thrust ?

sustaining 400kts ground speed @FL300 or 350kt ground speed @FL200 could have save them.

Why in case of IAS malfunction...

Forum: Tech Log

28th May 2011, 10:24

Replies: 2,070

AF447 Thread No. 3

Views: 613,550

Posted By peplum

What could have bee arrived if the crew would...

What could have bee arrived if the crew would have forgottent to rely on the pitot and would have tried to sustain 400kts ground speed below FL300 using GPS or inertial ?

Please answer.

Forum: Tech Log

28th May 2011, 09:34

Replies: 2,070

AF447 Thread No. 3

Views: 613,550

Posted By peplum

Could anybody tell me why on a airliner that...

Could anybody tell me why on a airliner that should have at least 3 sources of speed indicator (pitot tubes, GPS and inertial system), why the crew did not rely on the 2 sources that have been...

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