PPRuNe Forums - View Single Post - AF 447 Thread No. 5
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Old 13th Jul 2011, 03:26
  #212 (permalink)  
EMIT
 
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Bearfoil 13 july 00:09
Quote
The Pilots and pax experienced a climb, one that when it came to an end, engendered up to or even more than -1g. As she decelerated, g was diminishing, the SS may have not been active, even if it was, it was likely ineffective, and at -g the computer will try to regain +g, Yes? Of course at this point they are aerodynamiclly STALLED, but the computers would still roll in THS (NU) to regain g? No other protection is available, and AoA would be an iffy way to regain aerodynamic flight.
Unquote

Bearfoil, please get some education on flying before you spout more of this nonsense.
A zoom climb is not any uncharted territory.

In the most extreme case, when you decelerate to zero airspeed, you will have no more lift, so you will enter a free fall. How many G do you encounter in a free fall? Zero!

The minus 1 G that you conjure up could only be achieved by PUSHING FORWARD a large amount on the sidestick, yoke, steering wheel or whatever pitch control your aircraft has, while it still had enough airspeed to generate minus one G with a negative angle of attack.

I hope that this minus one G story of you, so that the computer would definitely roll in max THS up, yes? will make it clear to all how far off the mark you are. Please pay attention when people are politely trying to educate you.

As far as the lack of information from BEA is concerned - didn't they convey clearly that they have just put out a note:
"The BEA has decided to publish a note with information on the first facts established, based on analysis of the data from the flight recorders."

This note is not yet a final report, they need more time to analyse information.
Just imagine, they might first want to run a number of wind tunnel tests to check whether at 60 degrees of AOA there is enough nose down authority available to unstall the wing and recover the aircraft to normal flight. If they would not present proof about that in the final report, PPRUNErs would forever keep discussing about the point whether the a/c was recoverable or not.
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