What's new
By:
Filters

Tourist submarine exploring Titanic wreckage disappears in Atlantic Ocean

Bonanza said:
What a fantastically shitty way to go.
Click to expand...
Well, they will go down in history and they’ll be in the news cycle for a couple weeks to boot. Plus, like those people stuck on Mt Everest, they’ll be a permanent land mark on Titanic
 
arse_sidewards said:
Makes for a better training op if the Coast Guard doesn't know that what they're looking for is dead.
Click to expand...
Coat guard is looking out the window for a sub, need a P8 out the throwing a few bouys in the water to hear the banging on the side of the sub.
 
Last edited:
Landslide said:
Well, they will go down in history and they’ll be in the news cycle for a couple weeks to boot. Plus, like those people stuck on Mt Everest, they’ll be a permanent new tourist destination at the Titanic
Click to expand...
fixed for probably reality
 
Clastic said:
On the other side of it. It's kinda amazing the sub didn't have some sort of "oh shit" underwater locator beacon. If you've only got 72 hours of air, seems logical that the less time that they have to focus on finding you, the more time they have to form a rescue plan.

And I know it's not the Navy's primary buisness, but I'm willing to bet one of our subs could find that thing faster than a C-130 dropping SONAR buoys
Click to expand...

They did use a 130 and drop buoys
 
nahmus said:
paper pushers can really ruin anything

Click to expand...
Whoa, whoa... oceangate's problem isn't the United States' government's problem.

v7aTsA.gif
 
I remember the (80’s) subs I worked on had a BST buoy for some kind of emergency. I dunno what it did, because it wasn’t a weapon so it was just a thing that was there, but it was important to the crew.
 
arse_sidewards said:
It's really really fucking doubtful the hull failed.

It's not like they were cruising around at depth and the bottom was way down below their test depth. They were touring the bottom. If they lost power, control, whatever, they'll wind up on the bottom 50-100ft lower, a perfectly safe depth for the hull.
Click to expand...
You are putting a lot of faith in this hull. What do you know of the specs on it?
 
Tech Tim said:
I know nothing about how pressurizing subs work.

If they could depressurize the cabin a little, they could breathe a lower percentage of O2, extending their reserves. But that would also bring on a decompression obligation. And who knows what that would do to the strength/integrity of the sub.

I'm guessing they have some sort of scrubber system to pull the C02 out.

The question would be how long would it be effective? The scrubbers in my rebreather weigh 5-6 lbs. and are good for 4-6 hours for one person, depending on persons size, co2 expenditure, warm or cold water. etc.
Click to expand...

Have to remember that the sub is at 1 atmosphere inside. Same as us on the surface. The pressure is outside....the water pressure at that depth. They have no pressure to bleed off.
So at 12k fsw (feet of sea water) you have 364.6 atmospheres or 5340psi outside the sub and 1 atmosphere or 14.7psi inside. That's a helluva delta P. Down on bottom, you could say they're in a vacuum.

If you dive a rebreather, their scrubbers work exactly the same as yours. Theirs are most likely bigger (the canisters), but they use the same soda lime.
The scrubbers we use in dive bells are ~10"dia and a foot or so tall. We'll have 2 online, sitting on fans and another sealed in a bag as a spare. Each canister holds around 5kg of soda lime.
We also have "lung powered scrubbers" in the bell for emergencies. It's a long tube full of soda lime that you breath through.........hence lung powered

The divers are always on a gas reclaim system (a million dollar version of your rebreather), so the pumps and scrubbers are on the boat and I have analyzers before the scrubbers and at the last point before their gas heads down the umbilical. I know exactly when the soda lime is spent, and I'll have a tech change it out.

Ryno said:
Couldn't pay me to get on board, the risk to reward is miles apart. It's a heap of junk on the ocean floor, not some epic new uncharted territory.
Click to expand...

Might actually be a coffin now:flipoff2:


plym49.2 said:
Thanks Captain Obvious. The context was instead of equipping it with scrubbers.

EDIT: I am also sure that sub ran on some form of electricity.
Click to expand...

Scrubbers and the O2 are two completely different systems. Have to have both. Only one really "needs" electricity. The scrubbers. I know I mentioned lung powered scrubbers, but that only a back up for emergencies. The main scrubbers should have fans moving the atmosphere though them. Without air moving, scrubbers do nothing.
The sub "might" have had electronic atmosphere analyzers, but a back up Drager pump and some O2 and Co2 tube works without electricity.

xr-nut said:
What is a "lay ship". I'm finding your comments most interesting in this thread. learning something. thanks :beer:
Click to expand...

Big ass ship that lays pipelines in deep water is the short version. There are also drill ships that do just that, drill wells in deep water. But unlike a drill ship, a lay ship will be setup to do many different things. Think of it as a construction vessel. So you'll have a big heavy lift crane, some sort of winch that can raise and lower heavy shit way down deep and at least one if not two work class ROV's.

We put a SAT diving system on this lay ship a few years ago for a couple jobs. It's pretty impressive.

www.ship-technology.com

Global 1200 - Deepwater Derrick Pipelay Vessel

The Global 1200 is the first of two next-generation deepwater derrick pipelay vessels owned by Global Industries, which is an…
www.ship-technology.com www.ship-technology.com
 
booger said:
You are putting a lot of faith in this hull. What do you know of the specs on it?
Click to expand...

Titan Submersible

OceanGate Inc. is a privately held company that provides manned submersible assets and expertise for commercial, research and military applications.
oceangate.com oceangate.com

Real-Time Health Monitoring​

The most significant innovation is the proprietary real-time hull health monitoring (RTM) system. Titan is the only manned submersible to employ an integrated real-time health monitoring system. Utilizing co-located acoustic sensors and strain gauges throughout the pressure boundary, the RTM system makes it possible to analyze the effects of changing pressure on the vessel as the submersible dives deeper, and accurately assess the integrity of the structure. This onboard health analysis monitoring system provides early warning detection for the pilot with enough time to arrest the descent and safely return to surface.
Click to expand...

The 'need' for a RTM system means it's hull wasn't made with sufficient factor of safety??
 
I read that there was or is three crew and one pilot on bord this sun. I guess that’s in addition to the ticket holder passengers.

The thing is piloted using an old nefriendo gaming controller too.
 
Apparently the hull is 5" thick carbon fiber with a titanium nose with the port hole.

That thing would weigh very little in the water and would need a shit ton of ballast to become negative and sink.
 
They've now sort of ID'd the people in the sub:
www.independent.co.uk

Who is Stockton Rush? The OceanGate CEO killed in Titanic tourist submarine

Princeton graduate and Titan submarine entrepreneur insisted Atlantic dives were not dangerous and once said: ‘At some point, safety just is pure waste. If you just want to be safe, don’t get out of bed’
www.independent.co.uk www.independent.co.uk

Stockton Rush, the CEO and founder of OceanGate Expeditions, is believed to have been aboard his company’s Titan submarine that disappeared on Sunday en route to the wreck of HMS Titanic around 370 miles east of the coast of Newfoundland, Canada.

The US and Canadian Coast Guards are currently taking part in an attempted rescue mission to recover the craft, which takes fee-paying tourists and scientists 12,500 feet down into the depths of the Atlantic to see the disintegrating ruin of the famous luxury ocean liner, which struck an iceberg on its maiden voyage from Southampton to New York City on 15 April 1912, subsequently splitting in two and sinking, killing all but 700 of the 2,200 guests and crew on board.


Also understood to be on the missing OceanGate vessel are British billionaire explorer Hamish Harding, renowned French diver Paul-Henri Nargeolet, Pakistani businessman Shahzada Dawood and the latter’s son, Sulaiman Dawood.
Click to expand...

More about Stockton himself:
From the above article:
According to Stockton Rush’s biography on his company’s website, he graduated from Princeton University with a BSE in aerospace, aeronautical and astronautical engineering in 1984 and later from UC Berkeley Haas School of Business with an MBA in 1989.

He began his career as a pilot, qualifying from the United Airlines Jet Training Institute in 1981 at the age of 19 and serving as a DC-8 first officer on flights to Europe and the Middle East during his summers between college.

In the year he left Princeton, Mr Rush joined the McDonnell Douglas Corporation as a flight test engineer on its F-15 program, spending two years at Edwards Air Force Base on its APG-63 radar test and anti-missile programs.

In the year he left UC Berkeley, he personally built a Glasair III experimental aircraft, which he still owns and flies, and subsequently constructed a heavily-modified Kittredge K-350 two-man submarine, in which he has conducted more than 30 dives.
Click to expand...

More about the sub:

The missing man was interviewed about his Titan sub on a CBS Sunday Morning featurette last November and cheerily emphasised its “homemade” aspects, also pointing out handles affixed to the ceiling of the craft that he said he had bought from Camper World but denied that the vessel has been “MacGyvered” or “jerry-rigged”.

“I don’t know if I’d use that description of it. But, there are certain things that you want to be buttoned down,” Mr Stock told reporter David Pogue.

“The pressure vessel is not MacGyver at all, because that’s where we worked with Boeing and Nasa and the University of Washington. Everything else can fail, your thrusters can go, your lights can go. You’re still going to be safe.”

Mr Rush was also interviewed by Mr Pogue for the latter’s Unsung Science podcast that same month on which he was asked what he worried about at the depths of the ocean and answered: “What I worry about most are things that will stop me from being able to get to the surface. Overhangs, fish nets, entanglement hazards.”
Click to expand...
 
Last edited:
believed.....understood......aka they dont have a clue who's in that coffin
 
Of course they know. But they would not be identified until all of the families are notified and in a situation like this have given permission. The families are obviously on pins and needles since no one knows even where they are.
twales said:
How can they not know who is onboard?
Click to expand...
 
plym49.2 said:
Of course they know. But they would not be identified until all of the families are notified and in a situation like this have given permission. The families are obviously on pins and needles since no one knows even where they are.
Click to expand...
like they need notified, the families know they are on the sub.
 
Maybe-The rich people on board, pulled massive life insurance policies last year. Paid off idiot sub owner=profit.

Reality-the sub imploded and the millions of pieces remaining of each person have been eaten by the marine life.
 
gt1guy said:
Apparently the hull is 5" thick carbon fiber with a titanium nose with the port hole.

That thing would weigh very little in the water and would need a shit ton of ballast to become negative and sink.
Click to expand...
23,000 pounds would be very little in the water? Serious question, I wouldn’t know a Sub from my ass. 23,000 pounds sounds heavy but it’s a bubble of air so buoyancy is something obviously you’re familiar with that I am not.
 
You must log in or register to reply here.
Top Back Refresh