Old 26th Dec 2018, 03:01
  #11 (permalink)  
RatherBeFlying
 
Join Date: Sep 2001
Location: Toronto
Posts: 2,185
The sensor is mounted on the fuselage; so in the case of a sensor that can be mounted on either side, perhaps needs to calibrated to the angle of incidence between local flow at the fuselage location and wing which will be positive or negative. However being 20 off implies a 10 difference between local flow and AoA

That kind of difference implies a misalignment when mounting.

Are the sensors generic units with various calibration values for different aircraft and sides?
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