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Under pressure - A live rant about carbon fiber submarines
Scott Manley ^ | 23 June 2023 | Scott Manley

Posted on 06/25/2023 1:21:39 PM PDT by Steely Tom

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To: Leaning Right

Speaking of typos, a priest, a pastor and a rabbit walked into a bar...


41 posted on 06/25/2023 4:45:42 PM PDT by OKSooner ("Oh, the mad fools!")
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To: JustaTech

Not having arranged anything ahead of time, it took several days to get suitable equipment to the site. One is a French robot and another is a Canadian one. Not many things can go that deep.


42 posted on 06/25/2023 4:56:29 PM PDT by jjotto ( Blessed are You LORD, who crushes enemies and subdues the wicked.)
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To: Fester Chugabrew

When its telemetry was lost. About 3000’.


43 posted on 06/25/2023 5:06:02 PM PDT by Justa (If where you came from is so great then why aren't Floridians moving there?)
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To: jjotto
Not having arranged anything ahead of time, it took several days to get suitable equipment to the site. One is a French robot and another is a Canadian one. Not many things can go that deep.

Certainly the mothership had an ROV on standby, didn't it? In case the sub got entangled or otherwise needed help?

If it didn't that is just criminal negligence, IMO.

44 posted on 06/25/2023 6:45:08 PM PDT by JustaTech (My mind is the weapon. Everything else is tools.)
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To: Steely Tom

mJ is “milli-Joule,” or 1/000 of a Joule.

Want to check your units again?

Did you mean MJ, MegaJoule, 1,000,000 Joules?


45 posted on 06/25/2023 6:46:59 PM PDT by Basket_of_Deplorables (The President has been bribed for 30 years. WHO ELSE in government has been bribed?!?)
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To: Red6

That’s a beauty?

Anyone remember the Windecker Eagle?


46 posted on 06/25/2023 9:20:47 PM PDT by Sequoyah101 (Procrastination is just a form of defiance.)
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To: ProtectOurFreedom

That is what you do in a steam plant on a ship; feel around with brooms. Live dry steam is impossible to see.


47 posted on 06/25/2023 9:24:02 PM PDT by Sequoyah101 (Procrastination is just a form of defiance.)
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To: Steely Tom

Here is a photo taken by a submersible of the area showing the passengers....
Blnk
48 posted on 06/25/2023 10:49:07 PM PDT by minnesota_bound (Need more money to buy everything now)
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To: ProtectOurFreedom

#24 I was told that tale from a engineer back in the early 1980’s!!

“Power plant guys tell tales of plant personnel walking around with broom sticks searching for the leak. I never did find out if that is an old wives tale or true”


49 posted on 06/25/2023 10:57:44 PM PDT by minnesota_bound (Need more money to buy everything now)
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To: Leaning Right

#28 joules have no meaning!!!
What are the WATTS!! : )


50 posted on 06/25/2023 10:58:39 PM PDT by minnesota_bound (Need more money to buy everything now)
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To: TalBlack

So what you’re telling me is that if I buy one of these fancy new composite airframes, I’m literally getting a disposable product with a finite/defined max life.

No more 1950s airframe with 33,000+ TT on it.


51 posted on 06/26/2023 5:36:04 AM PDT by Red6
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To: Steely Tom

This one should be on the Math SAT.


52 posted on 06/26/2023 5:38:02 AM PDT by P.O.E. (Pray for America.)
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To: Steely Tom

I actually studied mechanical engineering, but only worked in that field for a half a year.

IIRC carbon fibre has a higher tensile strength than steel but has a catastrophic stress failure point - so great for say airframes with low pressure but back for deep sea. When it breaks, it does so suddenly with no warning.

But I’d like to read what mechanical engineers who actually stayed in the field and have experience have to say


53 posted on 06/26/2023 6:07:53 AM PDT by Cronos
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To: Red6

Pretty much as I understand it. The only way to check carbon fiber is to cut it up and look at it which of course destroys its functionality. They find out how many cycles before cracks start showing up.


54 posted on 06/26/2023 7:43:46 AM PDT by TalBlack (We have a Christian duty and a patriotic duty. God help us.)
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