Posted on 04/14/2019 7:21:31 AM PDT by Libloather
Inertial navigation is limited by integrated sensor biases. The original purpose of GPS was to correct for accumulated sensor bias. Critical military systems have GPS assisted inertial navigation.
Stellar navigation is slow, inaccurate, and only available at twilight in clear weather. It is only accurate to within a couple of miles. Hence the need for lighthouses and channel markers.
No. https://www.defensenews.com/breaking-news/2017/11/01/navy-crews-at-fault-in-fatal-collisions-investigations-find/
Business Insider, partner with Yahoo.
Just sayin’.
Good gosh. I guess I shouldn’t be surprised such a thing is available.
Annapolis dropped stellar navigation as a requirement for graduation. It is still required to join the sailing club. I worked with a guy who had retired from the “Coast Guard”. He was a Coast Guard Academy graduate who was deployed as a navigator on Navy vessels. The Navy needed navigators so badly they won’t let him go, and the Coast Guard wouldn’t promote him because he was merely a navigator. He finished his 20, but with no real prospect of advancement if he stayed in. No good deed goes unpunished.
No. Navy ships collided because of abysmal leadership and training.
But at least women and minorities got to have Navy careers.
It was just put back in the curriculum
They are spoofing GPS. Not just GLONASS. It only works on the civil frequencies. They have to break the crypto codes to spoof the military signals. But messing with civil signals can cause problems for many users.
I really enjoyed celestial navigation when it was part of my job. I still have my Plath sextant and my foot long slide rule.
President Trump signed a law allowing military to use there related skills/time to join the merchant marine. That is, if he wants to go back to sea.
2. ...and the Russians do not claim they hacked that side of the system.
Nor would they.
I think it more likely we are in a day-to-day contest and those of us out here on the sidewalk will never know which of those days we win. One hopes we have not sacrificed any of our sailors at the alter of national security.
GPS and GNSS are two completely different systems.
A point the author seems blissfully ignorant of.
They’ll have to pry my Rand-McNally from my cold, dead fingers!
Binoculars and bridge wing watch standers. “Gee, I wonder what that huge shadow is out there. Probably nothing.” If there was no bridge watch out on the wings then someone is WRONG!
No, it isn’t. Radar and the Mk I eyeball are how all ships avoid collisions in shipping lanes and waterways. In both the recent collisions, neither was being properly used.
Up until at least the ‘60’s Marine aviators had to learn Morse code and semaphores or so I have been told. Don’t know about the other branches.
Our military being too dependent on GPS is insane be it air,land or water. That also goes for our vulnerability to EMP.
No kidding. Wait till these driverless card start killing more people, They should be banned.
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