PPRuNe Forums - View Single Post - AF447 final crew conversation - Thread No. 1
Old 14th Oct 2011, 13:26
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rudderrudderrat
 
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Hi BOAC,
I cannot believe the software was designed to REVERSE aileron response OR apply rudder in a fully stalled condition? I would have expected the 'managed' response (if there was one) to worsen the wing drop.
You are correct. There is no software control reversal.

Once the wing was stalled, any aileron deflection downwards would have increased drag and yawed the aircraft, causing a roll the wrong way (due sweep). Fortunately the secondary effect of dihedral levelled the wings.

Gums explained it from his experience in Viper days.

are you sure the FPV was available and visible?
When the FPV (Bird) was turned on, the 10,000 ft/min rate of descent probably caused it to be out of view below the visible part of the PFD.

The training philosophy of manual flying on the AB is either with the FDs on or FDs off & Bird on. There is very little exposure to basic raw data flying - because it's expected to have both of those aids available.

I agree with your final comment and I hope it will be a recommendation to practice basic flying skills again (without the use of FD or Bird) - like it used to be in the old days.
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