September 28, 20187 yr on the display it is possible to see the wind direction/speed. I know that it is a complicated an indirect calculation base on the informations derived by the meausing of the dynamic/static pressure/heading compared with the GPS measurements (to calculate groundspeed). The vectors analysys allows to know the wind direction/speed. Now the question: - What I see in the display is sometimes different (small difference) with the wind direction/speed readable on the FMC cruise page. Why? Is it a PMDG behaviour or does it happens also in in the real NGX?...is it due to a different source for the calculations? Thank you. Stefano Biasiotti LIPE
September 28, 20187 yr I don't have the technical reason but yes, this is common across all the Boeings. My guess is that the wind vector on the ND is a dampened value not prone to rapid movements about where as the FMS provides a more "instant" measurement or at least it does on PROG pg 2. Dan Downs KCRP
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