Wind calculation on HUD compare to tlog


I wanted to used the wind calculation and wind direction on the HUD.
So after the fly i take the tlog recorded and try to extract the wind parameters.
But cleary it is not the same so i suppose that the data store are
some raw data and there is some calculation to show real wind value to
the HUD.
Where i can find this calcul ?

Thanks for you help


do you use an airspeed sensor?

Hello Michael

yes i used the wind probe for the airspeed


then the airspeed and direction is derived from the airspeed sensor. and will just be a field in the tlog.