Go | New | Find | Notify | Tools | Reply | |
| That rug really tied the room together.  |
Stupid question of the day. How do submarines navigate the oceans without running into under ground mountain ranges and shallow water? A combination of charts and sonar? Doesn't sonar give away your position, and thus, boomers are unlikely to use it unless necessary? Do submarines use GPS guidance under water, and does it work under water? Thanks ______________________________________________________ Often times a very small man can cast a very large shadow | ||
|
Member |
In 2005, the USS San Francisco ran into an undersea mountain at flank speed.  | |||
|
| Member |
Just a guess: Extremely accurate underwater charts. End of Earth: 2 Miles Upper Peninsula: 4 Miles | |||
|
| Knows too little about too much  |
Charts, periodic GPS fix, and onboard inertial nav systems. Clancy man, Clancy!!! RMD TL Davis: “The Second Amendment is special, not because it protects guns, but because its violation signals a government with the intention to oppress its people…” Remember: After the first one, the rest are free. | |||
|
| Go ahead punk, make my day |
Really big windows and underwater binoculars.  | |||
|
A Grateful American |
Someone gingerly reaches their foot out front along the bottom of the ocean floor and "ooches" with their toes. "the meaning of life, is to give life meaning" ✡ Ani Yehudi אני יהודי Le'olam lo shuv לעולם לא שוב! | |||
|
| Dances With Tornados |
I think we have some retired submariners who will chime in. But to answer your question, they use INS, Inertial Navigation Systems, along with surely other newer top secret systems. INS, once programmed and set exactly, use gyros. As the days and weeks go by that degrades, I'll assume that a sub will sneak up to periscope depth and grab a fresh GPS fix and go again. I think over many decades of sub operations, immense amounts of time and resources have been spent mapping the oceans, and those charts are pretty darn good. I'm hoping some sub sailors will enlighten us to what they can legally say, I find it fascinating. EDIT: I typed too slow, others have posted, but I'll leave my comments stand. | |||
|
| Member |
I don't believe that GPS radio signals can penetrate very deep into water. | |||
|
Fighting the good fight |
A guy in a crow's nest with a scuba tank and two-way radio. | |||
|
| My other Sig is a Steyr.  |
It gets bit by a tiny shark and they have to cancel the entire mission.  | |||
|
| Go ahead punk, make my day |
| |||
|
| Member |
Big Ass Curb Scrapers..... | |||
|
| Member |
Neptune Massif in 3...2...1.... End of Earth: 2 Miles Upper Peninsula: 4 Miles | |||
|
Member |
Why, Mr. Limpet, of course! This space intentionally left blank. | |||
|
Baroque Bloke |
Plus SONAR? Serious about crackers | |||
|
| Member |
Naval Oceanographic. Located right here at the Stennis Space Center in south Mississippi. Mine warfare is out there as well. A lot of this stuff is top secret. LINK: https://www.public.navy.mil/fl...ages/navo_home1.aspx | |||
|
| Lawyers, Guns and Money  |
Why does it not surprise me that a boat named San Francisco was seriously off course? "Some things are apparent. Where government moves in, community retreats, civil society disintegrates and our ability to control our own destiny atrophies. The result is: families under siege; war in the streets; unapologetic expropriation of property; the precipitous decline of the rule of law; the rapid rise of corruption; the loss of civility and the triumph of deceit. The result is a debased, debauched culture which finds moral depravity entertaining and virtue contemptible." -- Justice Janice Rogers Brown "The United States government is the largest criminal enterprise on earth." -rduckwor | |||
|
| Dances With Tornados |
I dunno. But there's some link to semen, whoops I mean Seamen. Yanno, Sailors! Or so the old joke goes. | |||
|
The Unmanned Writer |
Sonar is like tracers for infantry. Life moves pretty fast. If you don't stop and look around once in a while, you could miss it. "If dogs don't go to Heaven, I want to go where they go" Will Rogers The definition of the words we used, carry a meaning of their own... | |||
|
Old Air Cavalryman |
They eventually got that boat back in service, ( well, at least it ran and could submerge some, ) but mostly for PR purposes. A nose graft can do wonders. "Also I heard the voice of the Lord saying who shall I send, and who will go for us? Then said I, here am I, send me." | |||
|
| Powered by Social Strata | Page 1 2 3 |
 | Please Wait. Your request is being processed... |
|
© SIGforum 2024