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AF 447 Search to resume

Old 23rd Apr 2011, 18:30
  #3881 (permalink)  
 
Join Date: Jun 2009
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Yes that is what I thought was meant. But in this theory isn't there a Phase 1 which did something similar, so now you give the system a second chance to beat you ? Wouldn't you be some what cautious after the fright of your life caused by unreliable airspeed ? Seems to demand a degree of stubborn tenaciousness.
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Old 23rd Apr 2011, 18:38
  #3882 (permalink)  
bearfoil
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I tend to think there was very little fear in the cockpit, even with UAS at hand. You ask good questions, but my Faith and Trust remains with the Pilots, it will take more than a report from BEA to convince me that these gents boffed the poodle in any way.

Now, Upset??? GOD would shit his drawers.....
 
Old 23rd Apr 2011, 18:41
  #3883 (permalink)  
 
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Ok, we'll see. Of course it would also shrink the timeline re height loss.
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Old 23rd Apr 2011, 18:45
  #3884 (permalink)  
bearfoil
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ptf "pardon the french". I seldom use profanity, but sometimes due lack of better vocabulary......

RE: Timeline. How so??
 
Old 23rd Apr 2011, 18:47
  #3885 (permalink)  
 
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Location: Atlanta, GA, USA
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bearfoil nailed it

quote "Did all Tx (ACARS) arrivee via FIN?? Or was the last one, the Cabin Speed, tx by the Fuselage, after the famous gap in ACARS, the loss of the Fin causing the Bus to switch to SATCOM?? If so, that explains the gap in tx, and would explain the possible loss of the Fin at altitude, coinciding with a depressurization, a hull rupture, and the possible loss of some cabin contents, explaining the lack of damage to the Galley structure, when the recovered cabin liner right next to it was utterly destroyed."

That's the sequence that has been bugging me since the beginning. That galley floating relatively undamaged seemed to tell a tale of a back-broken airplane spitting parts. BTW what exactly does UAS mean?
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Old 23rd Apr 2011, 18:49
  #3886 (permalink)  
 
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Its how the dsylexic spell America. PTF, oh silly me. If Pt1 didn't lose the height, Pt 2 lost the height in less time. Yes I know its an assumption re Pt1 ! My assumption is Unreliable Air Speed.
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Old 23rd Apr 2011, 18:52
  #3887 (permalink)  
bearfoil
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I'm in need of some clarification myself. What is Pt1/2.

I have been segregating different regimes of flight to sort what little evidence there is available, for instance, at some point, Flight Path morphed into 'Trajectory', (Trajectories).
 
Old 23rd Apr 2011, 18:56
  #3888 (permalink)  
 
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That's got to be pitot 1 and 2, not?
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Old 23rd Apr 2011, 18:56
  #3889 (permalink)  
 
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Sorry. It was Svarin's post. He makes the point that you couldn't engage a/p in an upset. It had been lost (Part 1 of episode), then some sort of apparent recovery (necessary to allow the a/p to be selected), then Part 2. Divides the upset timeline into two parts: at least in my head. He then pointed out the directive, the inference being that this is now known to some and they have acted.

Pt = Part in my Pt of the world
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Old 23rd Apr 2011, 19:11
  #3890 (permalink)  
bearfoil
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If Svarin is correct, and he makes excellent proofs, the Cabin Speed advisory, if it involved depressurization, would have been the signal of a more or less vertical descent. There is great resistance to this theory, but I have considered how an a/c can make an impact with the water in the way BEA describes. (I think they are substantially correct). It unfortunately makes En Ligne de Vol an absurdity.

With little forward speed, how do wings remain roughly level in rapid descent??

Angular momentum. At upset, the wing tanks were close to full, and fuel was being drawn from inner wing tanks, to observe the traditional practice of keeping the wings heavy as long as possible. Even the Aft HS Trim tank would be full, to squeeze fuel efficiency from an aft cg (In limits, of course). The wings would be the heavy parts of a four part pinwheel, and remain level (roughly) because of their relative mass. I believe this would alleviate any successful attempt by the nose or Tail to wobble the system into tumbling.

Tail low, one wing slightly low, (per BEA), the system contacted the water.
It did not contact nose into wind, and if the VS was still on the tail, this system would not have achieved any stability, it would have tumbled at one third revolution into its first lateral excursion, (At altitude).

This involves a fairly rapid lateral rotation, and of course is fatal to a "Nose First" aspect at water entry.



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