Backward flight

[ExCalbr]

I guess the orientation of the plane is set only from the packet data rather than by calculating it from the flight path. Here’s a plane where Track is n/a, and it’s flying due south, so it looks like it’s flying backward.
http://victorspictures.com/img/s1/v54/p657587466-11.jpg

[obj]

@ExCalbr

I guess the orientation of the plane is set only from the packet data rather than by calculating it from the flight path

Yes.