>Combat planes like fighters and special operations flights rarely show up unlesss it is a training flight.
So if you knew for a fact that one flew over a certain place at a certain time, but it did not show up on tracking systems, then you can assume that it was not a training flight and was actually an active operation?
>To find any data would need more info to begin with, aircraft type, callsign, tail#, departure/destination airfield etc.
Is there a system where one can go back through time and look at a location to see what has been passing over?