News Argentine navy loses contact with submarine

[Notebook]

The Argentine navy is searching the South Atlantic for a submarine that has not made contact for 48 hours.

The vessel with its 44 crew was last located more than 400km (250 miles) off the coast of Patagonia, the navy said.

http://www.bbc.co.uk/news/world-latin-america-42030560

https://www.msn.com/en-gb/news/worl...ying-44/ar-BBF6lFQ?li=AAmiR2Z&ocid=spartanntp

 

[Urwumpe]

Sounds dire, 48 hours is a long time for such a diesel electric submarine. Lets just hope the radio gear failed. I have a book about the modern German submarines (after WW2), the TR-1700 has its own chapter there.

 

[statickid]

I had no idea that diesel electric subs were still used!! wow!

 

[Urwumpe]

I had no idea that diesel electric subs were still used!! wow!

Well... they are still the most common type of submarines around, only few countries are using fuel cells already. :lol:

 

[MaverickSawyer]

Diesel electric subs are making a very strong comeback these days. They're far quieter than a nuke boat, for a fraction of the cost and complexity. And when you add Air Independent Propulsion systems, they can stay submerged for days to weeks.

 

[Urwumpe]

Correct me if I should be wrong, but to my knowledge, its the first major accident involving a German build submarine since WW2.

The indian submarine Shankush had a minor one in 2010, where crew was washed overboard during rough seas, with one officer dying while getting transported by helicopter to the nearest hospital after he sustained major head injuries. The submarine was a modified 209 class, the last Indian submarine build in Germany, the later models of the Shishumar class had been build in India.

 

[Notebook]

Argentina missing navy submarine: Search stepped up

http://www.bbc.co.uk/news/world-latin-america-42030560

 

[MaverickSawyer]

Possible attempts from the crew to use a SATCOM system this morning. Seven attempts, from 4 to 30 seconds. None patched through, and not enough of a signal to triangulate, but it's an encouraging sign that the sub is on the surface or only shallowly submerged.

 

[Notebook]

BBC report as above:

http://www.bbc.co.uk/news/world-latin-america-42041978

 

[Col_Klonk]

Correct me if I should be wrong, but to my knowledge, its the first major accident involving a German build submarine since WW2.

Well, we did have one of our glorious captains ram a german sub into the seabed.
Maybe he was chasing some sharks :rofl:

 

[Urwumpe]

Well, we did have one of our glorious captains ram a german sub into the seabed.
Maybe he was chasing some sharks :rofl:

Didn't know that, the South African Type 209/1400 submarines are pretty modern, build between 2003 and 2006...

 

[Notebook]

http://edition.cnn.com/2017/11/20/americas/argentina-missing-submarine/index.html

Argentine navy detects noises that could be signal from missing sub

 

[Ripley]

Sadly, here (ITA webpage) they say those sounds didn't come from the sub.
Didn't specify where they came from though.

"Hope vanishes. Those sounds aren't from San Juan"

http://www.repubblica.it/esteri/201...afo-181670021/?ref=RHPPLF-BH-I0-C8-P7-S1.8-T1

 

[Notebook]

Was wondering about this, the BBC hadn't corroborated the CNN item.

N.

 

[Notebook]

https://www.theguardian.com/world/2...ng-out-of-air-as-search-enters-critical-phase

Seems the SATCOM signals didn't come from the submarine.

N.

 

[Ripley]

After initially reporting about an "acoustic anomaly", it's turning out an actual esplosion was heard from the last known submarine location.

http://www.elmundo.es/internacional/2017/11/23/5a16c07a468aeb2c278b45e8.html
http://edition.cnn.com/2017/11/23/americas/argentina-submarine/index.html

 

[Artlav]

Explosion or implosion?
In any case, this does not sound good at all.

Most of the search area is in the 100-200m depth range, right?

 

[Urwumpe]

Explosion or implosion?
In any case, this does not sound good at all.

Most of the search area is in the 100-200m depth range, right?

Around 70m actually, at the limits of primitive self-rescue for a submarine crew - like escape suits with rebreather. Modern escape suits can permit self-rescue from 183m.

 

[MaverickSawyer]

After initially reporting about an "acoustic anomaly", it's turning out an actual esplosion was heard from the last known submarine location.

http://www.elmundo.es/internacional/2017/11/23/5a16c07a468aeb2c278b45e8.html
http://edition.cnn.com/2017/11/23/americas/argentina-submarine/index.html

Explosion or implosion?
In any case, this does not sound good at all.

Most of the search area is in the 100-200m depth range, right?

People are speculating as to what the sound is. According to officials, it's not natural or animal-made, but it's not clear what exactly it is. Anyone saying otherwise is speculating and trying to gain attention.

 

[Notebook]

http://www.bbc.co.uk/news/world-latin-america-42187139

The Argentine navy has said it has abandoned attempts to rescue 44 crew members on board a submarine that disappeared two weeks ago.
"Despite the magnitude of the efforts made, it has not been possible to locate the submarine," navy spokesman Enrique Balbi said on Thursday.
The sub, the ARA San Juan, last made contact on Wednesday 15 November.