With Concorde I performed subsonic test flight LSGS-LZIB (
https://fgtracker.ml/modules/fgtracker/ ... ID=6997819) with advanced weather and recorded some data (
https://ulozto.net/!avKjq81v71Dc/lsgs-lzib-ods) with 1 second interval. I analyzed that data and found 2 discontinuity :
1. pressure inches Hg at sea level, when METAR string doesn't contains pressure data, AW "interpolate" last known pressure to 29.92 inHg in 2 seconds (yellow rows 3205-3207). All other small pressure changes has been perfectly interpolated
2. wind speed and wind direction are not interpolated, I'm using Live data, tile selection METAR and wind model Aloft Waypoint. That model should interpolate wind speed and direction
aloft waypoints is like the above, but lets you specify many positions (called here "waypoints") and AW will interpolate them in the 3D space. In METAR mode it works automatically and, instead of using the user data, it guesses the vertical distribution of winds on its own based on the reported ground wind, especially using as waypoints the live METAR stations.
Based on the discontinuity in 2) there are steep changes in the KIAS and ofcourse TAS and GS (not displayed in the graphs). Autothrottle can handle slow wind speed and direction changes as visible in the graph, but not in the case of discontinual change. And when that change is the source of the overspeed, AP should be disengaged in very realistic simulated aircrafts like IDG A3xx. Duration of the one overspeed 10 kts above selected speed was 7 seconds (green rows 1222-1229)
I will try collect another data from longer flight over many METAR stations across Europe.