Magnetic heading of AI planes

[Paul Henty]

Hi Pete,

Your trafficlook program displays the magnetic heading of the AI planes. As FSUIPC only gives the True heading, are you assuming that the AI planes have the same magnetic variation as the player? Or is there something more cunning going on there?

thanks,

Paul

[Pete Dowson]

Your trafficlook program displays the magnetic heading of the AI planes. As FSUIPC only gives the True heading, are you assuming that the AI planes have the same magnetic variation as the player? Or is there something more cunning going on there?

It uses the MagVar at the user aircraft. Since the max range for AI is around 60-80nm, or about 1 degree of arc, it will not be far out. I suppose I could read the MadDec BGL (which is merely a complete table of MagVars) and work out the correct value, but it isn't worth it -- the difference would be small, even in areas of maximum change.

Regards

Pete

[Paul Henty]

OK, thanks Pete.

Paul