Saved by shallow water - Page 3

MarkCt · 05-04-12, 10:43 AM

Could sonar tell the difference between a sub on the bottom and a coral reef?

PacificWolf · 05-04-12, 11:07 AM

Quote:

Originally Posted by MarkCt

Could sonar tell the difference between a sub on the bottom and a coral reef?

I believe not! I tried this by myself and I almost die! Im talking about vanilla TMO and RFB.

les green01 · 05-04-12, 12:12 PM

in the book blind man bluff one of the us subs i think it was the sea wolf was doing a cable tap in one of the russian seas in the early 80's and had divers out when a storm hit and to save the drivers the capt order her it to bottom and mud and muck was so bad in the boat that they almost didnt raise back up and was afraid the muck and stuff was going to shut the reactors down dont have the book with me right now

Sailor Steve · 05-04-12, 12:38 PM

Dynamix put that very thing into Aces Of The Deep. Bottoming the boat would sometimes save you, but you could also get stuck. I once lost a career because I couldn't break free and the crew suffocated.

MarkCt · 05-04-12, 02:15 PM

Wow that's got to suck. All that sweat and effort into a career only to have it end my mud. It's not even a "glorious" death where you go out fighting.

Daniel Prates · 05-04-12, 02:36 PM

Quote:

Originally Posted by TorpX

I don't know that much about modern subs, but I doubt there would be a temptation for them to resort to such tactics. They are much faster, the batteries don't run down, they have more effective weapons, so why would they allow themselves to be caught in shallow water?

That is not the point, I too can't think of any reason why a contemporary sub skipper would even dream about doing so. I was just pointing out, since someone else asked, that IMO it is not possible to land a large modern sub in the bottom.

Echo76 · 05-04-12, 04:17 PM

A bit OT but I read a little story about a finnish sub that ran aground while evading russian patrol boats because they had too much ballast. When they released some of the ballast, the surfacing gases and oil made the hunters to believe that the sub had sunk.

Shortly after, the sub ran aground again into an underwater elevation in the bottom and damaged its diving planes. By that time the crew was falling unconscious and became delirious because of the co2 rising too high, like the cook falling with a coffee mug in his hand and when the chief of the watch was told to start the pumps to get the boat on surface, the chief instead started to explain the operating principles of the pump.

Must have been a miracle to get the sub up again but they made it. And got hunted again

TorpX · 05-05-12, 02:03 AM

Quote:

Originally Posted by Sailor Steve

Not necessarily. First, the bottom is rarely smooth, and irregularities cause sonar to reflect in random directions, helping to hide the sub. Second, the sand helps to absorb the force of the blast. I'm not saying it's perfect, as one close hit can end it all, and we have no record of the subs it didn't work for, but it was done and sometimes done very well. Re-read my links about S-38.

I know of the S-38. I don't dispute that this tactic was done on occasion, but I think it was unusual. The incidents with the S-38 happened early in the war, when IJN ASW tactics were of a lower standard. I think most sub crews disliked (or even dreaded) shallow water encounters with DD's and ASW ships.

05-04-12, 12:12 PM	#33
les green01 Seasoned Skipper Join Date: Jan 2002 Location: Freeman Missouri Posts: 1,784 Downloads: 1405 Uploads: 0	in the book blind man bluff one of the us subs i think it was the sea wolf was doing a cable tap in one of the russian seas in the early 80's and had divers out when a storm hit and to save the drivers the capt order her it to bottom and mud and muck was so bad in the boat that they almost didnt raise back up and was afraid the muck and stuff was going to shut the reactors down dont have the book with me right now __________________ I'll tell you what bravery really is. Bravery is just determination to do a job that you know has to be done. Audie Murphy

05-04-12, 12:38 PM	#34
Sailor Steve Eternal Patrol Join Date: Nov 2002 Location: High in the mountains of Utah Posts: 50,369 Downloads: 745 Uploads: 249	Dynamix put that very thing into Aces Of The Deep. Bottoming the boat would sometimes save you, but you could also get stuck. I once lost a career because I couldn't break free and the crew suffocated. __________________ “Never do anything you can't take back.” —Rocky Russo

05-04-12, 04:17 PM	#37
Echo76 Loader Join Date: Mar 2010 Posts: 83 Downloads: 68 Uploads: 0	A bit OT but I read a little story about a finnish sub that ran aground while evading russian patrol boats because they had too much ballast. When they released some of the ballast, the surfacing gases and oil made the hunters to believe that the sub had sunk. Shortly after, the sub ran aground again into an underwater elevation in the bottom and damaged its diving planes. By that time the crew was falling unconscious and became delirious because of the co2 rising too high, like the cook falling with a coffee mug in his hand and when the chief of the watch was told to start the pumps to get the boat on surface, the chief instead started to explain the operating principles of the pump. Must have been a miracle to get the sub up again but they made it. And got hunted again __________________

05-04-12, 10:43 AM	#31
MarkCt Electrician's Mate Join Date: Mar 2011 Location: Connecticut Posts: 133 Downloads: 45 Uploads: 0	Could sonar tell the difference between a sub on the bottom and a coral reef?

05-04-12, 02:15 PM	#35
MarkCt Electrician's Mate Join Date: Mar 2011 Location: Connecticut Posts: 133 Downloads: 45 Uploads: 0	Wow that's got to suck. All that sweat and effort into a career only to have it end my mud. It's not even a "glorious" death where you go out fighting.