PPRuNe Forums - View Single Post - AF 447 Thread No. 7
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Old 9th Dec 2011, 00:28
  #589 (permalink)  
DozyWannabe
 
Join Date: Jul 2002
Location: UK
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Hmm - if work lets up I might have a play with that JavaScript, see if I can't tart it up a little.

So - based on mm43's web graphic we have:
  • The pitch attitude *bang on zero* at disconnect
  • Importantly however, trending nose-up
  • Followed by the last A/P command bringing the pitch attitude to about +1.5 degrees NU
  • A wobble in V/S around the time of disconnect, but *well within the tolerances for "MODERATE" turbulence*
  • A very clear difference in elevator response from 02:10:08 onwards, possibly indicative of manual control
  • A/P elevator control has a max NU of 0.6 (correcting for the bump beginning at 02:10:00) and a max ND of 0.5 - compare this with a max NU of 2.1 and a max ND of 0.6 under manual handling

I still see an aircraft that was relatively stable for the turbulence they were in until the PF starts overcontrolling.
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