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Old 22nd Jun 2011, 01:34
  #1806 (permalink)  
EGMA
 
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In addition, that final 60 or so degrees everyone is calling AOA is an angle anchored by a GROUNDSPEED. That final calculated earth referenced FPA is independent of air mass movement. This will only be aero AOA if the air mass is not moving. If the air mass is moving, one-half knot of headwind WILL effectively decrease the actual aero AOA some small amount, just as one-half knot of tailwind will increase it.
Valid point, which is why I asked about wind direction. A 20 kt mean wind speed would make that final AoA somewhere between 55 and 75 degrees, depending on wind direction. Still nowhere near a recovery.
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