Originally Posted by
FlightDetent
The machine does calculate with TRUE track inside, however, the information supplied out to the various other aeroplane systems is converted to MAGNETIC heading for compatibility. There is a magnetic variation table (hopefully well updated) inside the IRS boxes.
Thanks, I was trying to imply exactly that.
So basically there are no limitation then apart from the switching to true navigation in polar regions? As in no machine (accelerometer) restrictions?