3 ms·
It removes the need to maintain the lookup tables that are used to compute magnetic north from the true north determined by the navigation system. I don't know
by maxerickson 5y ago
It removes the need to maintain the lookup tables that are used to compute magnetic north from the true north determined by the navigation system.
I don't know anything about them, but looking it up, apparently inertial navigation systems can determine true north by sensing the spin axis of the planet! So it isn't just a 'gps is easier' kind of thing.