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Static Error on altitude

Keith Spreuer
 

Been noticing that GPS altitude is always above baro altitude. Obviously that depends on the correct baro setting and I don't have WASS GPS.  But I wonder if the 4 kt position error I have is part of this. Guess I need to do some math.

gilbert_drieux
 

Your altimeter setting is "probably" wrong ....
Considere your GPS altitude, from satelites, ( from geoïde, ) is the true local "QNH altitude".


Gilbert-Pierre DRIEUX

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De : canard-aviators@canardzone.groups.io <canard-aviators@canardzone.groups.io> de la part de Keith Spreuer <kspreuer@...>
Envoyé : dimanche 28 juin 2020 19:54
À : Cozy Builders <cozy_builders@...>; Canard Aviators <canard-aviators@canardzone.groups.io>
Objet : [c-a] Static Error on altitude
 
Been noticing that GPS altitude is always above baro altitude. Obviously that depends on the correct baro setting and I don't have WASS GPS.  But I wonder if the 4 kt position error I have is part of this. Guess I need to do some math.