/r/submarines

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Subreddit for everything Submarines!!!

"A billion dollar house, and the roof leaks...” - Submarine Mechanic Proverb

We are the subreddit dedicated to every machine under the water.

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/r/submarines

266,270 Subscribers

74

Royal Navy Astute-class nuclear-powered fleet submarine HMS Anson (S-123) loading Tomahawk SLCM in Gibraltar today.

7 Comments
2025/02/04
15:49 UTC

0

Acoustic tiles

Are they in plastic or in rubber? How do they feel to the touch ? Spongy ? Soft ? Or rather hard ? Do they flex when you press them ? Are they dense ?

17 Comments
2025/02/03
22:28 UTC

40

Harbor Pilots on USN Subs?

Do USN submarines allow harbor pilots on board when entering US or foreign ports?

21 Comments
2025/02/03
20:06 UTC

245

Ohio class SSGN diving

3 Comments
2025/02/03
16:03 UTC

19

Whiskey on the rocks 1981. Do you remember this?

2 Comments
2025/02/03
13:56 UTC

77

Submarine classification

Submarine exiting baltic sea. Anyone know what class it is?

30 Comments
2025/02/03
13:41 UTC

37

Water Density, Underwater 'Cliffs' and Submarines

This is a question more about oceanography than subs but since it involves a sub I figured I'd ask you guys first.

I was trawling through Chinese Wikipedia for a completely unrelated reason when I came across a particularly interesting article. It claimed that in early 2014, Boat 372/Yuan Zheng 72, an Improved Kilo, was on patrol when it encountered a 'cliff' (literally escarpment) caused by a sudden decrease in water density, lost buoyancy and fell to a depth where some pipes broke from the pressure and water flooded the sub. The crew then recovered the situation and surfaced the boat. The squadron commander/captain decideded to continue the patrol (The source quoted says the squadron commissar demanded it), so repairs were made and they continued with the mission.

Leaving aside the later parts of the story, are there such things as sudden changes in water density leading to loss of buoyancy in the first place? Wiki also says that this has happened to other subs as well? Has it? Does anyone know of such similar cases happening?

Also, considering the damage described (flooding, water logged main generator/engine and air compressor), I assume that the boat would have needed lengthy repairs. Is there any evidence that this was done, or that 372 was not spotted/reported on for some time? Would add some credibility to the story if there was.

The wiki article in question: https://zh.wikipedia.org/zh-hk/%E4%B8%AD%E5%9B%BD%E4%BA%BA%E6%B0%91%E8%A7%A3%E6%94%BE%E5%86%9B%E6%B5%B7%E5%86%9B%E6%BD%9C%E8%89%87%E7%AC%AC%E4%B8%89%E5%8D%81%E4%BA%8C%E6%94%AF%E9%98%9F

The main source: https://news.ifeng.com/a/20140409/35582388_0.shtml

15 Comments
2025/02/03
11:51 UTC

74

How bad is it to have bedbugs on a submarine?

Once upon a time, I heard from an ANAV that it could potentially end a deployment. I don’t know how true this is though.

38 Comments
2025/02/02
23:34 UTC

270

Return to base. Spanish S81 entering Cartagena.

3 Comments
2025/02/02
18:12 UTC

49

Buying decommissioned military submarines 🪖🎖️

Hi, does anyone know where I can buy a like Soviet, cold war era submarine?

47 Comments
2025/02/01
22:02 UTC

39

Quote of the day

"Remember, sometimes the light at the end of the tunnel is the fires of hell." -EMN2(SS)

18 Comments
2025/02/01
05:30 UTC

5

Looking for a Velcro-Backed Silver Dolphins Patch or Sub Related

I have a new jacket that has velcro on the shoulders, I am looking for a patch that is velcro backed with either just fish, or maybe fish with one of many slogans " Death from Below", "Hide and Seek World Champs" , "Veteran" etc...

3 Inches wide, probably no more than 2-3 inches deep.

I am amazed that I couldn't find this on Etsy or eBay etc in 30 seconds!

So - Anyone got a link? Thanks Shipmates!

3 Comments
2025/01/31
06:58 UTC

14

UCOD

Hello Bubble heads,

Does the acronym UCOD ring a bell to anyone? I have asked a couple of guys that served with me and they don't have a clue either. This would have been something that someone went out of their way to get and had served on submarines and qualified fish. Maybe a coner thing?

14 Comments
2025/01/31
04:13 UTC

58

Are there career fields on civilian submarines?

I served in the U.S. navy on submarines. Now I’m out and over the past year been trying to figure out where I want my life to go.

My most fond experiences of the navy was operating the submarine. I was qualified helms and loved it, but I was only enlisted not an officer with a degree.

Anyone know if there’s any sort of career out there for civilian submarines?

Research, tourism, doesn’t really matter. Not saying this is MY field I want to get into as I know it’s pretty niche, but I’m curious what’s out in the world.

56 Comments
2025/01/29
22:42 UTC

17

Submarine H-3 and USS Milwaukee

Interesting historical video about the grounding of H-3 and subsequent loss of USS Milwaukee while attempting to refloat H-3.

Submarine H-3 and USS Milwaukee

0 Comments
2025/01/29
20:43 UTC

18

Electric Boat Groton CT

Are there any entry level jobs at Electric Boat in Groton CT. I'm looking for one after I graduate, preferably at the Groton location, but I can't find any entry/starter level positions.

10 Comments
2025/01/28
15:11 UTC

337

Those pesky whales .

32 Comments
2025/01/28
12:26 UTC

3

Internships EB

How long does it take to hear back from an internship at electric boat? I have been waiting for 2 months and have the academic credentials that are necessary!

2 Comments
2025/01/27
23:14 UTC

480

Beard Chit

I was the RMC(SS) on the TN. Just ran across this and realized both our shipmates have passed. RM2(SS) Beaulieu died a few years after getting out and Capt Handfelt became a FL state senator and passed a few years ago.

34 Comments
2025/01/27
22:58 UTC

69

I bought a Tube Operating Panel

So I was browsing a local auction site and found the above beautiful thing described as a "late 20th century power amplifier". Knowing a bit about boats I immediately said "bollocks, that's a torpedo tube control panel" and bought it. I am an idiot.

Disregarding that I'm an idiot, can anyone tell me what class this has come off? It's not a Swiftsure, Trafalgar, Vanguard or Astute, based on the potential 1988 date I'm leaning towards an Upholder.

4 Comments
2025/01/27
19:31 UTC

289

The Virginia-class fast-attack submarine USS Vermont (SSN 792) transits Apra Harbor, Naval Base Guam, January 20, 2025.

25 Comments
2025/01/27
11:27 UTC

28

Type 212A Documentary

There’s a pretty nice new documentary, it covers the examinations submariners go through before being put in command of a German 212A sub. It’s in German, but there are auto-generated English subtitles.

https://youtu.be/5t1jiklu4cI?si=kbLRBaeEZBPlhbv8

4 Comments
2025/01/27
07:23 UTC

18

When the War Came to America: 1995 documentary by WVEC-TV in Norfolk, Va. about WWII submarine warfare

Features interviews from both American and German submariners

1 Comment
2025/01/27
05:16 UTC

77

Something that's bothered me about the hunt for red october for decades, and i don't know who else to ask

At the very beginning, Jack's wife (played by Gates McFadden) tells their nanny:

Don't let her pull more than her usual nonsense. Two stories, two glasses of water

She has a British accent.

She then looks to Jack Ryan and says:

Jack, you're going to miss the plane.

Now she has a standard American accent.

Why is does it switch??

20 Comments
2025/01/27
01:38 UTC

54

Submarine banking at turn?

Hey!
So we are watching Hunt for Red October and Crimson Tide with friends and are arguing if the sub banking while turning is realistic.

Does this happen really?

https://preview.redd.it/u88loumgrdfe1.png?width=989&format=png&auto=webp&s=9a3ed1916eaa6a81a3835200a07e5c434295de56

61 Comments
2025/01/26
18:20 UTC

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