Argentine navy lost contact with sub [UPDATE: SUB FOUND]

[Von Due]

Originally Posted by Jimbuna

70 m depth is well within range of recue if assetts can be deployed quick enough.

True, depending on damage.

[kraznyi_oktjabr]

Originally Posted by Skybird

TR-1007? Never heard of that, but that is no wonder ... Is that kind of an export version of one of the 209 variants, like the 209 up to 209-1004, or is it a completlye new design?

I'm not completely sure but I think TR-1700 is derivative of Type 209 design with somewhat larger dimensions and displacement.

Vessel involved in this incident recently went through major overhaul which included rebuilding of diesel engines, replacement of batteries, replacement of periscopes etc.

[gambla]

There's hope that a phone company received attempted calls to marine bases via sat phone, but still unconfirmed. They're trying to determine the exact location of the calls.

source (german):
http://www.n-tv.de/panorama/Militaer...e20140245.html

[Bubblehead Nuke]

3 days without contact on a modern warship?

Even a country like Argentina has access to modern communications gear and ANY warship is going to have multiple ways to 'call home' let alone contact SOMEONE who can relay a message.

How do they KNOW that a 4 second message was from them? It could have been atmospheric noise.

They are grasping at straws in an attempt to save face.

This is not a rescue, it is a recovery operation now.

[fireftr18]

Originally Posted by Bubblehead Nuke

3 days without contact on a modern warship?

Even a country like Argentina has access to modern communications gear and ANY warship is going to have multiple ways to 'call home' let alone contact SOMEONE who can relay a message.

How do they KNOW that a 4 second message was from them? It could have been atmospheric noise.

They are grasping at straws in an attempt to save face.

This is not a rescue, it is a recovery operation now.

I hate to think it, but you may be right. Let's continue to hope and pray that it is a major communications issue and they are all found safe.

[Onkel Neal]

Argentina says it may have received signals from missing sub

Distress calls received...?
https://news.google.com/news/video/U...Uwt_k77M?hl=en

News is all over the place on this.

[em2nought]

It's too bad this guy isn't still around as Swede would be their only hope. Our navy can't steer a ship without running into something nowadays. I don't give it much chance at deep sea rescue. Too many politically correct, or incorrect decisions, and too much social engineering to do first before they ever got around to mounting a rescue. https://en.wikipedia.org/wiki/Charles_Momsen


A real man's man, and leader that guy! Not afraid to get his hands dirty, naval officers take note.

[GoldenRivet]

For those who have not been keeping up with this on the Subsim Facebook Page, here's the latest:

• Argentine Navy has confirmed that the satellite calls did NOT originate from the submarine.
  
• Argentine Navy confirms that it did receive messages from submarine indicating electrical problems and was ordered to return to port
  
• Two search vessels have reported detection of sounds on sonar consistent with tools being hammered against the side of the hull and have narrowed search area to 35 sq nautical miles to zero in on the source location of the sounds

[Onkel Neal]

Thanks, John

[Skybird]

I just realised I have no clue on how long a Diesel boat of this kind can stay submerged without the crew running out of oxygene if Diesels are not running...? This is no 212.

[Jimbuna]

Originally Posted by Skybird

I just realised I have no clue on how long a Diesel boat of this kind can stay submerged without the crew running out of oxygene if Diesels are not running...? This is no 212.

In a "worst-case scenario," the missing sub could run out of oxygen in two days, Argentine navy spokesman Enrique Balbi said Monday.
Under normal circumstances, the vessel has sufficient fuel, water, oil and oxygen to operate for 90 days without external help, said Balbi, and the vessel could "snorkel" -- or raise a tube to the surface -- "to charge batteries and draw fresh air for the crew."
If the sub is bobbing adrift on the surface and the hatch is open, it will have an available air supply and enough food for about 30 days, he said.
But if it is submerged and cannot raise a snorkel, its oxygen may last only about seven days. When the sub last made contact on Wednesday, five days ago, it was submerged, Balbi said.

http://edition.cnn.com/2017/11/20/am...now/index.html

[Falkirion]

I'm curious, assuming the USN have an SSN somewhere nearby, would they be tasked to assist with the search or is that more on whatever other assets the Argentinians/other nations can mobilize?

Really hope the boat and crew is found soon.

[Mork_417]

Still hoping for the best.

[Hartmann]

Originally Posted by Falkirion

I'm curious, assuming the USN have an SSN somewhere nearby, would they be tasked to assist with the search or is that more on whatever other assets the Argentinians/other nations can mobilize?

Really hope the boat and crew is found soon.

Probably some submarine could be in the area right now, but it only works if the Ara Santa fe is alive, or the crew is banging tools against the hull.

SSN can go below the termal layer and good options detecting the Argentinian submarine.

I´m not sure if the active sonar is useful or can detect submarines on the sea floor.

[Skybird]

Originally Posted by Jimbuna

http://edition.cnn.com/2017/11/20/am...now/index.html

Sounds as if the spokesman in that article is somewhat avoiding the question. Mentioning snorkeling and m ission operation time while the sub obviously cannot surface or move, is a distraction.

Their electric did break probably, so implies the news so far, maybe they even had a battery or cable fire, which is worst case, or in toxication of the atmosphere from the betteries, and I take it that the sub sits still on the ground. Who knows how long it was submerged already when the problems showed up. I think you do not snorkel from 70m, or do you?

I fear they are already gone. Its the scenario with the highest probability. Hope I am wrong, though.