Originally Posted by takata #1468
Hence, airspeed is twice affected (did you try to derivate aircraft actual airspeed from ground speed and other parameters to see at which estimated (true) value airspeed was reading under 60 kt ?). And V/S is also affected (obvious from graph)... and somewhat baro altitude...
Hi takata,
Airspeed from groundspeed, V/S, windspeed and temperature is shown on this graph:
CASfromGS, It is based on wind 45 kt @125 deg, ISA +11 deg C, DFDR data for v/s, altitude and HDG.
The blue dots are Mach from ADR, pink is Mach from GS, wind and v/s, and the green dots show the corresponding CAS.