PPRuNe Forums - View Single Post - AF 447 Thread No. 6
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Old 18th Aug 2011, 16:32
  #124 (permalink)  
OK465
 
Join Date: May 2011
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From post #101:

Call up the "bird". With the wings level, the AOA is the vertical distance from the pitch bars (where the aircraft is pointed), and the "bird" (where the aircraft is actually going). Non-wings level, you visually drop a perpendicular from the plane of the pitch bars to the bird. That distance, measured on the PFD, is your AOA, and would have prevented this crash.
@USMCProbe:

There's one small problem with this. At 16 degrees pitch attitude and AOA in excess of 35 degrees, do you know where the "bird" is on the PFD?

(Any 'stall prevent' use of the "bird" would have required monitoring and honoring FPV ("bird") thru the "ballistic" portion of the "zoom", the caveat of course, it must be selected and available.)

edit: BTW there are a lot of pilots trained to use FPV.
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