4 ms·
This sounds like fancy next-gen inertial navigation. You’ll still need charts (and ENCs) and still need GPS (for periodic updates to the inertially derived posi
by avidphantasm 3y ago
This sounds like fancy next-gen inertial navigation. You’ll still need charts (and ENCs) and still need GPS (for periodic updates to the inertially derived position).
- vesinisa 3y agoInertial navigation is a form of dead reckoning. It needs periodic updates (GPS fixes) to stay accurate. If this however works like some other commenters have theorized (by finding reliable matches to the known contour of the bottom of the ocean), it's not a form of dead reckoning and can instead be used as a fix for dead reckoning.
- avidphantasm 3y agoI don’t know how that would work. Most of the ocean (ca. 75% is unmapped) and is constantly changing.
- wolverine876 3y agoPossibly, military submarines are interested in only a small part of the ocean. The Strait of Hormuz probably is well-mapped; some spot in the middle of the Indian Ocean might be unneeded.