When using the PMDG 747 in LNAV, I am finding that the flight line (purple line) turns before for the active waypoint on approach even though the waypoint is active (lit up in purple). The turns can occur a few miles before the active waypoint thus making landings a bit difficult sometimes. I usually compensate by using the heading select to fly to the way pointthen turn, but obviously I should not need to do this. 

 

Anyone know why this is happening?

 

Thanks so much!

 

KR

15 minutes ago, Contactdepture said:

When using the PMDG 747 in LNAV, I am finding that the flight line (purple line) turns before for the active waypoint on approach even though the waypoint is active (lit up in purple). The turns can occur a few miles before the active waypoint thus making landings a bit difficult sometimes. I usually compensate by using the heading select to fly to the way pointthen turn, but obviously I should not need to do this. 

 

Anyone know why this is happening?

 

Thanks so much!

 

KR

Turning prior to a point is not only common but a must unless the fix is designated as a fly over point.  If it didn't turn prior to the fix the aircraft would have to turn back to get on course and most undoubtedly worse put you outside the enroute IFR corridor.  Don't use HDG select.  Trust the computer to do it's job.  If the aircraft is staying on the magenta line, all is well in the world.