New missing submersible thread...

Padreruf

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Thanks for starting this...the situation is horrendous. Like so many other similar situations the longer it goes the less the chances of rescue. I feel for the families...lots of questions to be answered about this scenario, beginning with a submersible that operates with a game controller and evidently was not fully vetted.
 
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crimsonaudio

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In a promotional video, OceanGate Expeditions software security expert Aaron Newman tells prospective clients that travelling on the sub is "not a ride at Disney, you know".

"There's a lot of real risk involved, and there's a lot of challenges," he says.

But in 2018, submersible experts expressed "unanimous concern" over the experiment approach taken by Oceangate when building the Titan and warned of potential "catastrophic" issues with its design.

In a letter to Mr Rush unearthed by the New York Times, the Marine Technology Society said the company was making "misleading" claims about its design exceeding established industry safety standards.
 

Huckleberry

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Searchers for Titanic Tourist Sub Heard ‘Banging’ From Area, Internal Comms Reveal
An aircraft heard sounds at 30-minute intervals from the area where the sub disappeared, according to internal e-mails sent to DHS leadership obtained by Rolling Stone.


A CANADIAN AIRCRAFT searching for the missing Titan submersible, which failed to return Sunday from an expedition to the wreckage of the Titanic, detected “banging” in 30-minute intervals coming from the area the divers disappeared, according to internal e-mail updates sent to Department of Homeland Security leadership and obtained by Rolling Stone.

“RCC Halifax launched a P8, Poseidon, which has underwater detection capabilities from the air,” the DHS e-mails read. “The P8 deployed sonobuoys, which reported a contact in a position close to the distress position. The P8 heard banging sounds in the area every 30 minutes. Four hours later additional sonar was deployed and banging was still heard.” The announcement did not state what time the banging was heard, or what was thought to have caused it.

The announcement also stated that “the Joint Rescue Coordination Centre is working to find an underwater remote-operated vehicle through partner organizations to possibly assist.” Previous reports on the search for the missing submersible have stated that the Navy’s manned rescue craft can only descend about 2,000 feet underwater, and that if the divers were discovered closer to the approximate 13,000 foot depth of the Titanic wreckage, an underwater drone, or remote-operated vehicle, would be necessary to reach them.

Rolling Stone article
 

NationalTitles18

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What happens if sub reaches the surface?

Victoria Gill
Science correspondent
Hannah in Plymouth asks: If the vessel did reach the surface, is there any way for the people inside to get fresh oxygen in or are they still reliant on the supply provided?
Submarine search and rescue expert Frank Owen told BBC News on Wednesday morning that “banging sounds” that have been detected by floating sonobuoys in the search could suggest the Titan could be at the surface.
But even if that is the case, the hatch is bolted closed from the outside and the crew will be reliant on the air supply inside the vessel.
Any rescue operation at the surface though would be much simpler than a rescue at depth.



Yikes!
 

TIDE-HSV

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What happens if sub reaches the surface?

Victoria Gill
Science correspondent
Hannah in Plymouth asks: If the vessel did reach the surface, is there any way for the people inside to get fresh oxygen in or are they still reliant on the supply provided?
Submarine search and rescue expert Frank Owen told BBC News on Wednesday morning that “banging sounds” that have been detected by floating sonobuoys in the search could suggest the Titan could be at the surface.
But even if that is the case, the hatch is bolted closed from the outside and the crew will be reliant on the air supply inside the vessel.
Any rescue operation at the surface though would be much simpler than a rescue at depth.



Yikes!
As I posted yesterday, one veteran of a dive who understands the construction of the vessel said it had seven different ways to reach the surface. IMO, it's stupidity not to have a way of accessing atmospheric oxygen, once the surface is reached. I sounds suicidal to me...
 

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2003TIDE

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Pretty good segment here with a 20 year Navy submariner giving his take.

Especially interesting at the 5 minute mark with Ocean Gate's CEO Stockton Rush discussing hiring practices......to EXCLUDE 50 year old white ex-military sub veterans.

The lack of testing is what got me. I saw a comment where the reason given for them not doing full depth pressure testing was "no facility existed". Not really sure about that. Limiting Factor didn't have a problem. They drug their sub to Russia to test it then tested to 14000m which is ~30% more than the deepest point on earth.

I watched this docu randomly about 2 weeks ago.

(210) The Making of the Deep Submergence Vehicle (DSV) Limiting Factor - A Documentary by Nick Verola - YouTube
 
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CrimsonJazz

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Pretty good segment here with a 20 year Navy submariner giving his take.

Especially interesting at the 5 minute mark with Ocean Gate's CEO Stockton Rush discussing hiring practices......to EXCLUDE 50 year old white ex-military sub veterans.
I wonder if this applies to the operators or to the design process (or both.) Regardless, that was a stupid decision.
 

TIDE-HSV

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Searchers for Titanic Tourist Sub Heard ‘Banging’ From Area, Internal Comms Reveal
An aircraft heard sounds at 30-minute intervals from the area where the sub disappeared, according to internal e-mails sent to DHS leadership obtained by Rolling Stone.


A CANADIAN AIRCRAFT searching for the missing Titan submersible, which failed to return Sunday from an expedition to the wreckage of the Titanic, detected “banging” in 30-minute intervals coming from the area the divers disappeared, according to internal e-mail updates sent to Department of Homeland Security leadership and obtained by Rolling Stone.

“RCC Halifax launched a P8, Poseidon, which has underwater detection capabilities from the air,” the DHS e-mails read. “The P8 deployed sonobuoys, which reported a contact in a position close to the distress position. The P8 heard banging sounds in the area every 30 minutes. Four hours later additional sonar was deployed and banging was still heard.” The announcement did not state what time the banging was heard, or what was thought to have caused it.

The announcement also stated that “the Joint Rescue Coordination Centre is working to find an underwater remote-operated vehicle through partner organizations to possibly assist.” Previous reports on the search for the missing submersible have stated that the Navy’s manned rescue craft can only descend about 2,000 feet underwater, and that if the divers were discovered closer to the approximate 13,000 foot depth of the Titanic wreckage, an underwater drone, or remote-operated vehicle, would be necessary to reach them.

Rolling Stone article
I've never understood this report. I've had a few carbon fiber items, which is what this vessel is made of. It's not made of steel. Any carbon fiber I've had only made a dull thud, if dropped, etc. It's absorptive. Maybe they could bang on the hatch...
 

Bazza

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I've never understood this report. I've had a few carbon fiber items, which is what this vessel is made of. It's not made of steel. Any carbon fiber I've had only made a dull thud, if dropped, etc. It's absorptive. Maybe they could bang on the hatch...
Yep....the 2 hatches are titanium
 

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