PPRuNe Forums - View Single Post - AF 447 Thread No. 12
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Old 20th Feb 2017, 13:46
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Concours77
 
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Also, re PIO

Did you miss the Captain's command to PF much later in the chronology?

"....Watch your Lateral!!...."

What do you make of that?

"I do know that two Airbus aircraft have been lost after the PF inexplicably pulled back on the stick and pretty much held it there after experiencing roll instability at the transition to Roll Direct in alternate law. (AF447 & QZ8501)"

"Inexplicably"? My first assumption would be that pulling back stick kept the aircraft "controllable".

That remains my working theory with AF447.....and,

, however I have enough physics to know that any system with feedback and too much gain will go unstable. A pilot is a variable gain feedback device and a highly excited pilot is very likely to increase the rapidity and level of his feedback

Do you include the aircraft in this supposition? Or, just the pilot?

Last edited by Concours77; 20th Feb 2017 at 14:05.
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