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Old 22nd Nov 2013, 08:09
  #887 (permalink)  
rudderrudderrat
 
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Hi HazelNuts39,
Is there any airplane that derives it from static pressure alone?
All aircraft have a device which measures rate of change of static pressure - it's called the Vertical Speed Indicator.
AF 447 had in excess of 10,000 ft per minute displayed (about 100 kts) - more than enough for the "60kt AoA vanes" to sense I would suggest.
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