PPRuNe Forums - View Single Post - AF 447 Thread No. 9
View Single Post
Old 30th Jul 2012, 15:46
  #860 (permalink)  
Turbine D
 
Join Date: Dec 2010
Location: Middle America
Age: 84
Posts: 1,167
Likes: 0
Received 0 Likes on 0 Posts
The A330 in 447 was using thrust to keep themselves (or augment) Stalled.
Nope, wrong... They used pitch (up) to keep themselves stalled.
Utilizing thrust to recover was available. Unfortunately, again, it was not utilized.
Misplaced emphasis - using pitch (down) was available, followed by thrust to regain lost kinetic energy is the correct sequence.
Pulling back the levers and pushing forward the stick......but that is not the issue.
That is indeed the issue!
Once STALLED, the argument is wallowing in irrelevancy
How so?
From the outset, for me, this accident happened in twenty seconds
It happened (time-wise) until the point of no possible recovery as a result of non-recognition of what was happening although the clues (UAS) were there and even commented on "We got - got crazy speeds".
BEA is holding back some cards.
If you Google TWA 800, you will see theorists still claim the same thing relative to the NTSB investigation and report, 20 some years later, besides claiming everything from "electro-magnetic interference" to the missile shoot down theory to justify their theories.
From the outset, partisans have been comparing 447 to the other UAS. To me, that is preposterous. Each accident has a unique signature, and basing a conclusion on the similarities to improve safety is arse about.
Ah, but you miss an subtle but important point. In the 727-200 accident, the crew had all the information as to what was happening in front of them and elected to follow it, erroneous as it all was, never identifying they were in a stall until it was too late. So Airbus intent was to remove erroneous information so as to preclude making this mistake. However, that depended on shutting off the FDs as a first step and flying the aircraft (P & P) until the situation could be understood. Sadly for AF447, the first step was missed.
What makes us go forward with new knowledge is to assess what is different.
True, but this conflicts with your statement on comparing AF447 with other similar incidents. However, it is important for the investigative folks to not be theorists, but realists focused on significant data and information to assimilate conclusions on cause/probable cause. With theorists in charge, we may never have seen a final report in our lifetime...
Turbine D is offline