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-   -   Argentinean Submarine down - USN rescue team mobilised (https://www.pprune.org/military-aviation/602107-argentinean-submarine-down-usn-rescue-team-mobilised.html)

Heathrow Harry 19th Nov 2017 08:56

Argentinean Submarine down - USN rescue team mobilised
 
Argentina missing submarine: Satellite signals detected - BBC News

Signals have been detected that are thought to have come from an Argentine submarine that went missing with 44 crew on board, officials say.

The defence ministry is now trying to trace the location of the seven failed satellite calls received on Saturday. Argentina has stepped up the search in the South Atlantic for the ARA San Juan submarine, with a Nasa research plane joining in.

The diesel-electric vessel disappeared 430km (267 miles) off the coast.

Britain and countries in the region have offered assistance. The US Navy is flying deep water rescue modules to Argentina to be deployed if the submarine is found on the sea floor.

The task of the rescuers has been complicated by heavy winds and high waves. The ARA San Juan was returning from a routine mission to Ushuaia, near the southern-most tip of South America, to its base at Mar del Plata, south of Buenos Aires. Its last contact with the navy command was on Wednesday morning.

An Argentine destroyer and two corvettes are conducting a search around the area of the sub's last known position off the south-eastern Valdez peninsula. But so far there are no clues about its whereabouts. It is thought that the submarine may have had communication difficulties caused by a power cut. Navy protocol dictates that a vessel should come to the surface if communication has been lost.

-------------------------
Submarine rescue chamber and other assets being mobilized at @MCASMira

WE Branch Fanatic 19th Nov 2017 13:30

At least that proves someone was alive on Saturday. Fingers Crossed.

HMS Protector has joined the search.

Heathrow Harry 19th Nov 2017 13:52

Honestly I can't think of anything worse than being in a sub. on the bottom in trouble - even a mine would be better...................

And those Argentinean boats haven't been exactly maintained to top standards IIRC

West Coast 19th Nov 2017 16:35

What do you recall that makes you say that?

Heathrow Harry 19th Nov 2017 16:41

I think Conrad Waters Annual naval Review mentioned they were having problems in keeping any of their subs in service in either the 2016 or 2017 edition. Not at home so can't check.

Airbubba 19th Nov 2017 17:31


The defence ministry is now trying to trace the location of the seven failed satellite calls received on Saturday.
Is something lost in the translation perhaps? You can't do a satellite call unless you put an antenna above the surface of the ocean right?

Is some sort of tethered emergency buoy deployed?

Some information on the U.S. Navy rescue systems deployed:


URC is deploying two independent rescue assets based on a number of factors, including the varying depth of ocean waters near South America’s southeastern coast and the differing safe operating depths of the two rescue systems.

Three U.S. Air Force C-17 Globemaster III and one U.S. Air Force C-5 Galaxy aircraft will transport the first rescue system, the Submarine Rescue Chamber (SRC) and underwater intervention Remotely Operated Vehicle (ROV) from Miramar to Comodoro Rivadavia, Argentina. The four aircraft are scheduled to depart Miramar Nov. 18 and arrive in Argentina Nov. 19.

The second rescue system, the Pressurized Rescue Module (PRM) and supporting equipment will be transported via additional flights and is scheduled to arrive in Argentina early next week.
https://news.usni.org/2017/11/18/u-s...sing-submarine

ShyTorque 19th Nov 2017 17:33

A horrible way to go.

Despite the Argentinians being a past enemy of our country, I very much hope the sailors can be rescued.

4mastacker 19th Nov 2017 19:55


And those Argentinean boats haven't been exactly maintained to top standards IIRC

Originally Posted by West Coast (Post 9962382)
What do you recall that makes you say that?

ARA Santisima Trinidad?

http://en.mercopress.com/data/cache/...22-0165-14.jpg

SASless 19th Nov 2017 21:26

The Sea...like the Air...is a very unforgiving thing.

It is good to see International cooperation and support of Search and hopefully Rescue Operations.

switch_on_lofty 19th Nov 2017 22:30

Time is of the essence of it's to be a rescue rather than recovery mission.
If the sub is unable to get to periscope depth they won't be able to change the air, essential on diesel boats.

Airbubba 20th Nov 2017 04:06


Originally Posted by Airbubba (Post 9962422)
Is something lost in the translation perhaps? You can't do a satellite call unless you put an antenna above the surface of the ocean right?

Here's the tweet that everyone seems to base the 'seven satellite calls' report on:


Recibimos siete señales de llamadas satelitales que provendrían del submarino San Juan. Estamos trabajando arduamente para localizarlo y transmitimos la esperanza a las familias de los 44 tripulantes: que en breve puedan tenerlos en sus hogares.
4:33 PM - 18 Nov 2017
https://twitter.com/OscarAguadCBA/st...44033245024256

I'm not too optimistic that this report will pan out to be actual distress calls as some news accounts speculate. :(


Originally Posted by ShyTorque (Post 9962423)
Despite the Argentinians being a past enemy of our country, I very much hope the sailors can be rescued.

The Brits are indeed helping with the search :ok::


On Sunday, search units were largely relying on information gathered from a British polar exploration vessel, HMS Protector, which was equipped with an underwater search probe and was following the path taken by the submarine, the ARA San Juan.

"Our thoughts remain with the crew of the ARA San Juan and their families at this time," Angus Essenhigh, commander of HMS Protector, according to a statement from Britain's Royal Navy.

The gesture has attracted attention since the nations fought a bloody war in 1982 after Argentina invaded the Falklands Islands.
https://www.msn.com/en-us/news/world...als/ar-BBFc2sl

Trim Stab 20th Nov 2017 05:36


Originally Posted by WE Branch Fanatic (Post 9962201)
At least that proves someone was alive on Saturday. Fingers Crossed.

HMS Protector has joined the search.

I don't think there is any certainty that the attempted communication was from the San Juan. The signal transmissions did not complete so no information was transmitted or received.

parabellum 20th Nov 2017 08:05

I think I read that the Argentinian subs. were built in Germany 1983 or 1987 and San Juan is the youngest.

Heathrow Harry 20th Nov 2017 08:21

"The weather in the area of operations continues to be very difficult," Navy Admiral Gabriel Gonzalez said on Sunday.

"Right now, we have waves of six to eight metres high with west to southwest winds of 40 knots, and unfortunately it appears that these conditions will remain for the next 48 hours," he said.

Adml. Gonzalez added that the search for the vessel was further complicated by the fact that it has "very little visual area" from the surface, making it difficult to detect.

The Argentine navy says the missing diesel-electric submarine has enough oxygen, food and water to last at least two weeks.

Genstabler 20th Nov 2017 10:21

Fingers firmly crossed for them. A horrible predicament to find yourself in.

Davef68 20th Nov 2017 13:09


Originally Posted by WE Branch Fanatic (Post 9962201)
At least that proves someone was alive on Saturday. Fingers Crossed.

HMS Protector has joined the search.

As an aside, I hadn't realised HMS Protector had such basic aviation facilities (In comparison to her predecessors, who had full hangars)

Heathrow Harry 20th Nov 2017 13:17

Beeb latest:-

Specialist underwater rescue equipment has arrived in Argentina from the United States to help hunt for an Argentine submarine which vanished last Wednesday with 44 crew on board.
More boats and planes have also joined the search, which has been hampered by heavy winds and high waves.

The US Navy has sent a second ship with special tracking equipment and deep-sea rescue modules to join the search. Chile and the UK have sent extra aircraft to scour the area.

Argentine navy spokesman Capt Enrique Balbi said 11 boats and 10 planes from Argentina, Brazil, Chile, Peru, South Africa, Uruguay, the UK and the US were currently taking part in the search.

On Saturday, a Nasa research plane equipped with magnetometers, infrared cameras and other sensors that can detect a submerged submarines flew over the search area but did not detect the missing vessel.

Wander00 20th Nov 2017 15:01

Fingers crossed - hope there is a successful rescue

Dougie M 20th Nov 2017 15:59

Depending on the depth of the sub on the bottom, when it is located, then the UK Submarine Parachute Assistance Group (SPAG) team could be dropped in there by C130 faster than most surface ships can reach the area. They used to practice in Jersey most years. A great bunch to know.

Heathrow Harry 20th Nov 2017 16:34

Argentina's navy says its ARA San Juan submarine, which has been missing since Wednesday, reported a mechanical breakdown in its last communication.

The submarine, with 44 crew on board, disappeared 430km (267 miles) off the Argentine coast and no trace of it has been found.

"The vessel surfaced and it reported a breakdown," naval commander Gabriel Galeazzi said. He did not give further details of the nature of the breakdown. This is the first time that an official has mentioned the sub encountering mechanical problems. However, the brother of a crew member had earlier told local media that in a message before communications were lost his sibling had mentioned that the vessel was having problems with its batteries.

Capt Galeazzi, who heads the naval base in Mar del Plata, south of Buenos Aires, said that mechanical problems were not uncommon and rarely posed a risk. The naval commander said that the submarine had been asked to cut short its patrol and go directly to Mar del Plata. According to local media, the captain of the ARA San Juan contacted the naval base again after reporting the mechanical problem. In the message, the sub's captain reportedly said he was heading towards Mar del Plata with all 44 crew members in perfect health.

Signals not from sub


The navy also announced on Monday that seven signals picked up at the weekend were not from the missing submarine's satellite phone.
The failed calls, lasting between four and 36 seconds, had been received on Saturday. They had raised hopes that the San Juan's crew members were alive.

US satellite company Iridium had earlier said that the submarine carried one of its satellite phones on board. But the company said that the seven signals did not come through its network and, on Monday, navy spokesman Enrique Balbi confirmed the attempted calls "did not come from the submarine's satellite phone".


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