Good day .Interesting web sight. I was looking at the Tracking map and noticed that some aircraft indicate Ground speed only and some indicate all the speeds.Why is that Thanks,Nebojsa
Different data source / different transponder. More detailed speeds require ADS-B v1 and for the data to be available in the flight data computer. Also requires ATC radar interrogation (at least i think so).
Thank you.The interesting thing is that i can track a aircraft with a specific registration and sometimes it gives me all the speed info and other times nothing. nebojsa