AUS-M3000-Y-L2.2

Celestial navigation and the backup with no batteries

AUS-M3000-Y-M2 · Ocean Command Navigation · AUS-M3000-Y-M2-A Navigating a yacht anywhere in the world

Satellite positioning fails in ways that are boring (antenna, cable, power, receiver) and in ways that are not (jamming, spoofing). The dangerous failure is not the one that blanks the screen. It is the one that leaves a confident position on the ECDIS that is forty miles from where you actually are.