Silent sub: Russian noiseless Borei class nuclear submarine immersed

RT.Com ^ | 30 December, 2012, 17:26

[Smorgasbord]

Many years ago I heard about Toshiba being caught selling Russia the technology to make our submarine propellers as quiet as they are. I haven’t bought a Toshiba product since.

[Campion]

I will live in Montana, then, marry a round American woman, and own a recreational vehicle.

[R. Scott]

So that tells me that nearly all of the 24 subs are being built in a TOP SECRET LOCATION, one that no one knows about.

Except for Newport News Shipbuilding in VA and General Dynamics Electric Boat in Groton CT.

[Iscool]

Seen Russian made motorcycles here in the U.S...And after inspecting those, I don’t blame those sailors for wanting a quick way out...

In the pic it looks like they used caulking compound on some of the joints/seams...

[bytesmith]

The rescue chamber is the sub itself. After it ruptures for no apparent reason, it turns upside down and the water drains out of the conning tower

---

Don’t you just love gravity. Its always there when you need it.

[Lees Swrd]

Thats nothing a half ton pickup ran into a river around here had 10 people in the cab and 30 people in the back ya know some of our friends south of the boarder anyway the 10 in the cab got out safely the 30 in back drowned..... they couldn’t get the tailgate open!!! /SS

[RoadGumby]

What decompression? Subs operate at atmospheric. That is purposeful, to negate need for decompression.

[RoadGumby]

You said: I was in the submarine service at the time this happened. While Toshiba may make fine products, not a single dollar of mine has or WILL go to them since. They tried to kill me and injured this country.

[RS_Rider]

“What was their penalty?”

Westinghouse

[Slump Tester]

Pump Jet propulsion - that’s what Tom Clancy wrote about in the hunt for red october, isn’t it?

[rottndog]

The words "Violent and traumatic decompression" come to mind. I wonder how that works out from the depths these marvels run at?

No decompression would occur, because the air pressure in the boat remains approximately constant regardless of depth. I say approximately, because some air pressure differential will develop between the inside of the boat and sea surface air pressure (one atmosphere) over time while submerged, but it is only slight. Once the boat reaches PD or surfaces, it is required to 'equalize' before snorkeling or ventilating, but that will only result in minimal ear popping, similar to what is experienced on an airplane changing altitude.

[Sirius Lee]

I looked for articles on all of these 24 subs, and the best that I can find is something that says we’re building at the rate of maybe 1 sub every 4 years. So that tells me that nearly all of the 24 subs are being built in a TOP SECRET LOCATION, one that no one knows about.

Maybe the Chinese are building them for us at Hainan Island.

[listenhillary]

Who to believe?

Pentagon Denies Reports of Russian Sub near U.S.
http://en.rian.ru/military_news/20120816/175258313.html

[Robe]

Was the Kursk fitted with one?????
If so , it sure didn’t help those poor ba$tards

[Oztrich Boy]

In the pic it looks like they used caulking compound on some of the joints/seams...

Probably. The exterior joints/seams are between the anehcoic panelling which is glued (for want of a better word) to the outside of the steel hull. It's not load bearing, it just has to not reflect sonar.

[UCANSEE2]

Pump Jet propulsion - that’s what Tom Clancy wrote about in the hunt for red october, isn’t it?

No. I believe they are two totally different concepts. The one in the movie was a large magneto-hydrodynamic pump.

The pump jet technology here is closer to the jet-ski propulsion.

Basically the idea is to have a much smaller propeller surrounded by a radial flow chamber. (I wish I knew what I just said)

Here is an example.

[Rockingham]

That was a different era, before the US and the West had made dramatic advances due to computers and other high tech and while the USSR was still a going concern. Moreover, nuclear submarines generate a substantial and irreducible level of noise due to reactor cooling pumps. This makes the Borei class subs inherently noisy in ways that simply cannot be remedied no matter how much sound deadening is applied.

[Rockingham]

I think the issue there is not that Russian subs are quiet — they are not — but that US anti-submarine defenses have been allowed to decay due to lack of training, vigilance, and funding.

[UCANSEE2]

Here is a real one. ,

Some of these are rotatable (vortex), some not.

You can usually tell by whether there are control surfaces on the planes and rudders.

The French have a submarine with a vectorable drive, and this Russian one mentioned in the article is 'fixed'.

[UCANSEE2]

Here is one with vector ability.