Reynard
Guru
- Location
- Cambridgeshire, UK
This tiny submarine 2.4 miles under the sea, visiting the relics of RMS Titanic. Can it be found and the crew saved before the air runs out?
- Thread starter Accy cyclist
- Start date
- Status
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classic33
Leg End Member
Is that one such site?Mmmmmmmmmok...
Slick
Guru
And planes out the same material as the black box.
OP
OP
Accy cyclist
Legendary Member
- Location
- The hills of Accrington
They said the mini submarine would've taken approximately 2 hours to reach the Titanic. How long would it have taken for the Titanic itself to reach the sea bed after it went under the water, all those years ago? 🤔
Dogtrousers
Kilometre nibbler
Googly woogly
Lots of answers here. Consensus seems to e 5-10 minutes, but other answers say up to 20 min
https://www.quora.com/How-long-appr...ic-to-reach-the-ocean-bottom-after-submerging
Mad Doug Biker
Just a damaged guy.
- Location
- Craggy Island
Some of those other questions are utterly bonkers 😆
Jameshow
Veteran
Probably longer than you might expect with the air trapped might even be similar time to the sub??
Milzy
Guru
As pressure built a huge implosion would release the air tearing parts of the ship to bits. They’d have cork screwed down to the bottom in 5 to 7 minutes and hit the mud hard enough to wedge into it fairly deeply. The survivors could hear the ship buckling and exploding on its way down under the ocean.
Jameshow
Veteran
But it would take time for that pressure to build as it descended... We need Reynard to umpire!🤣🤣
Reynard
Guru
- Location
- Cambridgeshire, UK
I think the main difference here is a controlled descent using ballast vs an uncontrolled descent as a result of an accident. Plus you'd get the additional effect of explosions when ice cold water hits the hot boilers* in the engine room, flashing to steam and expanding rapidly. Which would tear out bulkheads big time and increase the rate at which the ship was taking on water.
Another thing is that the compartments on the ship aren't sealed like on a sub, so the pressure equalizes with depth. It also affects buoyancy. It's something you can mess around with at home to visualise that. Fill a sink or bathtub with water, and float a small container on top - metal or glass is best. If you fill the container slowly with water, it will gradually sit lower - that's how buoyancy is controlled, ships float because of the air inside the hull. Eventually, you can fill the container till it just sinks below the water. Now do the same test, but cascade the water inside, and the container will go *flump* straight to the bottom.
* The steam in a boiler will be superheated, if I remember my thermodynamics lectures.
Another thing is that the compartments on the ship aren't sealed like on a sub, so the pressure equalizes with depth. It also affects buoyancy. It's something you can mess around with at home to visualise that. Fill a sink or bathtub with water, and float a small container on top - metal or glass is best. If you fill the container slowly with water, it will gradually sit lower - that's how buoyancy is controlled, ships float because of the air inside the hull. Eventually, you can fill the container till it just sinks below the water. Now do the same test, but cascade the water inside, and the container will go *flump* straight to the bottom.
* The steam in a boiler will be superheated, if I remember my thermodynamics lectures.
Bonefish Blues
Banging donk
- Location
- 52 Festive Road
Article here is insightful. Recommended reading. Rush appears exactly as he has been painted. Also a good deal on material properties
https://www.newyorker.com/news/a-re...submersible-was-an-accident-waiting-to-happen
https://www.newyorker.com/news/a-re...submersible-was-an-accident-waiting-to-happen
cougie uk
Guru
Great article.
Dogtrousers
Kilometre nibbler
Makes me think of Lance Armstrong. Builds an empire on force of personality and lies. Maybe that's just because I watched that LA documentary recently.
Bonefish Blues
Banging donk
- Location
- 52 Festive Road
That has to be a bad thing.
captain nemo1701
Space cadet. Deck 42 Main Engineering.
- Location
- Bristol
And planes out the same material as the black box.
An old Bob Hope gag:
Stewardess: Where would you like to sit?
Bob: In the black box
- Status
