Share your photos by tagging us and using the hashtag #BigGreenEgg.
Want to see how the EGG is made? Click to Watch
OT: Ocean Gate Titan Confirmed Lost
https://thehill.com/blogs/blog-briefing-room/4063075-ocean-gate-statement-passengers-presumed-dead/
A little digging shows that the company was notified by many submersible experts that their design may be flawed:
https://www.nytimes.com/2023/06/20/us/oceangate-titanic-missing-submersible.html
EDIT: The NYT article is likely behind a paywall, here is a part that really hit home with me:
The separate warning that OceanGate received that same year came from 38 experts in the submersible craft industry; all of them were members of the Manned Underwater Vehicles committee of the Marine Technology Society, a 60-year-old industry group that promotes, studies and teaches the public about ocean technology. The experts wrote in their letter to Mr. Rush that they had “unanimous concern” about the way the Titan had been developed, and about the planned missions to the Titanic wreckage.
The letter said that OceanGate’s marketing of the Titan had been “at minimum, misleading” because it claimed that the submersible would meet or exceed the safety standards of a risk assessment company known as DNV, even though the company had no plans to have the craft formally certified by the agency.
“Their plan of not following classification guidelines was considered very risky,” Will Kohnen, the chairman of the committee, said in an interview on Tuesday.
The industry leaders said in their letter that OceanGate should, at minimum, test its prototypes under the watch of DNV or another leading certification company.
As a retired bubblehead, I would never consider submerging in something that hasn’t undergone an extensive review of the design, operation, maintenance, etc, let alone a design that depends on someone external to unbolt the hatch.RECOVERING BUBBLEHEAD
Southeastern CT.
Comments
-
Hopefully for those faithful souls it was a quick loss of life. Can’t imagine suffocating one by one if it had stayed in tact
-
I read something to the effect that death would have come in nanoseconds.Philly - Kansas City - Houston - Cincinnati - Dallas - Houston - Memphis - Austin - Chicago - Austin
Large BGE. OONI 16, TOTO Washlet S550e (Now with enhanced Motherly Hugs!)
"If I wanted my balls washed, I'd go to the golf course!"
Dennis - Austin,TX -
Apparently there’s all kinds of data on the tensile strength of Carbon Fiber, but very little compression test data. The actual sub was pressure tested to the required amount, once! No idea what the fatigue strength might be.
One SME said the pressure at the ocean floor was 3 tons/sq inch.___________"When small men begin to cast big shadows, it means that the sun is about to set."
- Lin Yutang
-
"I've made a note never to piss you two off." - Stike
-
Botch said:Apparently there’s all kinds of data on the tensile strength of Carbon Fiber, but very little compression test data. The actual sub was pressure tested to the required amount, once! No idea what the fatigue strength might be.
One SME said the pressure at the ocean floor was 3 tons/sq inch.
There is also the very real possibility of more of a structural failure due to buckling of the walls, which is my best guess as to what likely happened.
Regardless, it was surely brutal and fast, and perhaps there’s some saving that it happened very quickly and the passengers never had any idea."I've made a note never to piss you two off." - Stike -
Botch said:Apparently there’s all kinds of data on the tensile strength of Carbon Fiber, but very little compression test data. The actual sub was pressure tested to the required amount, once! No idea what the fatigue strength might be.
One SME said the pressure at the ocean floor was 3 tons/sq inch.Using the formula to calculate the area of the cylinder:A = 2 x pi x r x h + 2 x pi x r^2 yields ~ 769 sq ft or 110,736 sq inches. Multiply that by 5,500 yields ~ 792,000 lbs of force on that hull.Granted this is a gross approximation as it doesn’t account for the surface area of the titanium end bells, or the tapered stern of the vehicle, but gives an idea of the forces involved.In my Naval Nuclear days we called these type of approximations ‘RadCon Math.’ It gets you close enough to the answer to appreciate the forces involved.@lousubcap - Does this remind you of EOOW/EWS training?MMBGE / Large BGE / XL BGE (Craigslist Find) / SF30x80 cabinet trailer - "Ol' Mortimer" / Outdoor kitchen in progress.
RECOVERING BUBBLEHEAD
Southeastern CT. -
Turns out the Navy identified an implosion in the area on Sunday via SOSUS, and this information was relayed to the USCG Incident Commander:
https://www.independent.co.uk/news/world/americas/titan-submarine-implosion-navy-debris-microphones-b2362685.html
MMBGE / Large BGE / XL BGE (Craigslist Find) / SF30x80 cabinet trailer - "Ol' Mortimer" / Outdoor kitchen in progress.
RECOVERING BUBBLEHEAD
Southeastern CT. -
JohnInCarolina said:
The state of stress is actually a bit more complicated than uniaxial compression.___________"When small men begin to cast big shadows, it means that the sun is about to set."
- Lin Yutang
-
Botch said:JohnInCarolina said:
The state of stress is actually a bit more complicated than uniaxial compression.Lochridge said he first raised his safety and quality control concerns verbally to executive management, which ignored them. He then sought to address the problems and offer solutions in a report.
The day after it was submitted, the lawsuit says, various engineering and HR executives invited him to a meeting at which he learned that the viewport of the submersible was only built to a certified pressure of 1,300 meters, even though the Titanic shipwreck lies nearly 4,000 meters below sea level.
MMBGE / Large BGE / XL BGE (Craigslist Find) / SF30x80 cabinet trailer - "Ol' Mortimer" / Outdoor kitchen in progress.
RECOVERING BUBBLEHEAD
Southeastern CT. -
Having been involved in building pressurized cylinders with stainless inside and carbon fiber wrap outside, and pressurized in excess of 6k psi, when I saw the video of the cylinder being wrapped it literally made my stomach churn. Then add in lack of testing and this submersible was always going to end in tragedy. Very sad indeed.
Maybe your purpose in life is only to serve as an example for others? - LPL
-
Ozzie_Isaac said:Having been involved in building pressurized cylinders with stainless inside and carbon fiber wrap outside, and pressurized in excess of 6k psi, when I saw the video of the cylinder being wrapped it literally made my stomach churn. Then add in lack of testing and this submersible was always going to end in tragedy. Very sad indeed.MMBGE / Large BGE / XL BGE (Craigslist Find) / SF30x80 cabinet trailer - "Ol' Mortimer" / Outdoor kitchen in progress.
RECOVERING BUBBLEHEAD
Southeastern CT. -
Heck even Columbian drug traffickers mastered narci subs better.
Columbus, Ohio -
CTMike said:Ozzie_Isaac said:Having been involved in building pressurized cylinders with stainless inside and carbon fiber wrap outside, and pressurized in excess of 6k psi, when I saw the video of the cylinder being wrapped it literally made my stomach churn. Then add in lack of testing and this submersible was always going to end in tragedy. Very sad indeed."I've made a note never to piss you two off." - Stike
-
I read a story that said the viewing window was not certified to withstand the pressure at that depth. It said the company didn't want to spend the money to get one that was certified. Who knows with so much disinformation circulating.
-
stv8r said:I read a story that said the viewing window was not certified to withstand the pressure at that depth. It said the company didn't want to spend the money to get one that was certified. Who knows with so much disinformation circulating.MMBGE / Large BGE / XL BGE (Craigslist Find) / SF30x80 cabinet trailer - "Ol' Mortimer" / Outdoor kitchen in progress.
RECOVERING BUBBLEHEAD
Southeastern CT. -
I found this particular analysis pretty decent. Mirrored a lot of my thoughts.
https://youtu.be/4dka29FSZacMaybe your purpose in life is only to serve as an example for others? - LPL
-
yes and the guy who talked his 19 year old son into going with him for Father’s Day. That might have ended a family.
-
Those idiots will politicize anything. Farging iceholes.
“Reality is that which, when you stop believing in it, doesn't go away.” ― Philip K. Diçk -
HeavyG said:
Those idiots will politicize anything. Farging iceholes.Maybe your purpose in life is only to serve as an example for others? - LPL
-
Since when is Twitter a reliable source of...anything?Fish, Hunt, Cook....anything else?
1LBGE, 1MMBGE, somewhere near Athens GA -
ksmyrl said:Since when is Twitter a reliable source of...anything?
“Reality is that which, when you stop believing in it, doesn't go away.” ― Philip K. Diçk -
Travesty , but I’m glad the world set their differences aside and unite in the hope of bringing them homeVisalia, Ca @lkapigian
-
For anyone interested in taking a deeper dive (so to speak) into the carbon fiber hull here's an interestinig thread:
“Reality is that which, when you stop believing in it, doesn't go away.” ― Philip K. Diçk -
HeavyG said:For anyone interested in taking a deeper dive (so to speak) into the carbon fiber hull here's an interestinig thread:MMBGE / Large BGE / XL BGE (Craigslist Find) / SF30x80 cabinet trailer - "Ol' Mortimer" / Outdoor kitchen in progress.
RECOVERING BUBBLEHEAD
Southeastern CT. -
Strange one, go with dad and die, or stay home dad dies and you were right it was too dangerous. tough position to be in.
South of Columbus, Ohio. -
Ozzie_Isaac said:HeavyG said:
Those idiots will politicize anything. Farging iceholes.
LOL.Clinton, Iowa -
Also sitting here thinking of a way to spend 200k on a experience vacation with swmbo. It would be epic. Blue origin? does not sound like fun. hmm
South of Columbus, Ohio. -
alaskanassasin said:Also sitting here thinking of a way to spend 200k on a experience vacation with swmbo. It would be epic. Blue origin? does not sound like fun. hmm
Maybe your purpose in life is only to serve as an example for others? - LPL
-
Ozzie_Isaac said:alaskanassasin said:Also sitting here thinking of a way to spend 200k on a experience vacation with swmbo. It would be epic. Blue origin? does not sound like fun. hmm
Total bro. I am thinking a regular vacation that lasts a year lol.
South of Columbus, Ohio. -
Langner91 said:Ozzie_Isaac said:HeavyG said:
Those idiots will politicize anything. Farging iceholes.
LOL.Maybe your purpose in life is only to serve as an example for others? - LPL
Categories
- All Categories
- 183.2K EggHead Forum
- 15.7K Forum List
- 460 EGGtoberfest
- 1.9K Forum Feedback
- 10.4K Off Topic
- 2.2K EGG Table Forum
- 1 Rules & Disclaimer
- 9K Cookbook
- 12 Valentines Day
- 91 Holiday Recipes
- 223 Appetizers
- 517 Baking
- 2.5K Beef
- 88 Desserts
- 167 Lamb
- 2.4K Pork
- 1.5K Poultry
- 32 Salads and Dressings
- 320 Sauces, Rubs, Marinades
- 544 Seafood
- 175 Sides
- 121 Soups, Stews, Chilis
- 37 Vegetarian
- 102 Vegetables
- 314 Health
- 293 Weight Loss Forum