Originally Posted by
navajopilot
all those many airspeed changes during the flight (like shown in the flightradar24 replay)
According to their website the FR24 position data was obtained by MultiLateration (MLAT) and I suspect the groundspeed was likewise calculated from that. I guess that the varying groundspeed will be an artifact of the inaccurate position data.
Perhaps someone with an account can look to see if raw airspeed is available since that is not part of the free offering.
http://www.multilateration.com/surve...ateration.html