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/sci/ - Science & Math

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15520924 No.15520924 [Reply] [Original]

Alright I've been convinced that I'm smarter than this faggot. I need to build my own now in order to prove it. How do I go about getting permits and stuff?

>> No.15520926

you don't need permits for shit in international waters, faglord

>> No.15520936

>>15520924
Get a government contract to build submersibles for the US Navy and they'll help you with all that stuff

>> No.15520938
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15520938

OMG THE CURRENT THING!!!

>> No.15520990

>>15520924
send crack and hookers to hunter biden

>> No.15521004

>>15520924
If you build a sub make sure to paint it yellow. The boomer market is usually quite lucrative and many of them are into Beatles stuff. I can foresee a huge tourist demand to ride a yellow submarine to view Titanic and what remains of Titan.

>> No.15521155

>>15521004
and in fewer than 10 years you'll be able to view the remains of the Beatlemobile alongside them, attracting an ever-growing wave of tourists to an increasingly-large graveyard
It's a brilliant scheme. Get on it, OP.

>> No.15521162

>>15521155
Look at all the tourist climbers that swarm Mt. Everest just for updoots and bragging rights despite the frozen bodies that litter the trail up the mountain. If there are three wrecks at Titanic that will attract even more visitors thinking it could never happen to them.

>> No.15521168

>>15520924
you can't afford it, bitch.

>> No.15521219

>>15520938
accshually it was less about the current and more of an pressure issue ;)

>> No.15521231

>>15520924
the dude didn't even have permits. just build an identical sub with better window and no carbon fiber

>> No.15521235

I'm thinking you could maybe cast a big hollow passenger ball out of steel with one porthole made of a super hard crystal like sapphire for people to see out of. Instead of making a submarine, you could just attach this hollow ball to a long chain and lower it to the Titanic and pull it up when you're done. Since the surface ship has a crane that can move the ball around the Titanic it will be a lot cheaper than building a sub that has to move on its own. Also the chain means you know where the ball is at all times and you can just yank it up if they get into trouble.

>> No.15521280

>>15521231
>Identical
You don't want a cylindrical hull either

>> No.15521281

>>15521235
I don’t think you can yank and pull a submersible that deep. It takes special equipment to keep it from rising too fast and killing everyone in side. Think pulling a beach ball under water

>> No.15521286

>>15520924
go to school for 12 years and get a degree in marine engineering

>> No.15521290

>>15521281
You don't need all that stuff. It's just a heavy steel ball so it will sink straight down naturally. With the crane you can raise/lower it as slow or as fast as you want. Subs need to have ballast tanks or drop weights so they can ascend and descend on their own but a metal ball attached to a crane doesn't have that problem since it has no buoyancy.

>> No.15521296

>>15520924
Blideo game controller?

>> No.15521298

>>15521235
>>15521290
>chain breaks
>be stuck at the bottom of the ocean

>> No.15521314

>>15521280
It's fine with a good safety margin. No you don't need a sphere just because it's theoretically the "best" shape to resist external pressure.

>> No.15521315

>>15521290
That's retarded for so many different reasons.

>> No.15521361
File: 184 KB, 800x1187, PISCES_RESCUE_-_NAVY_PHOTO_1973.jpg [View same] [iqdb] [saucenao] [google]
15521361

>>15521298
You act like that could ever happen.

>> No.15521373

>>15521361
https://youtu.be/hMytHt1D1go

>> No.15521386 [DELETED] 

>>15521219
based and redpilled fellow redditor, upvoted, and hearted.

>> No.15521604

>>15521298
You're right that it's better not to use a chain. Steel cable will probably be sufficient. The engineering properties of steel cable are well understood so a failure is unlikely if the cable has enough strength margin. They've been using cable to lower observation spheres since the 1930s with no problems.
https://www.youtube.com/watch?v=TvLiG8P7uq0
Doesn't this look like fun?

>> No.15521618

>>15521604
I don't think you understand the issue with a heavy diving bell on some string.
You should use a vehicle that will float up to safety in case of failure and needs to spend energy to move itself to depths.

>> No.15521649

>>15521618
>needs to spend energy to move itself to depths.
That’s accomplished by ballast so that gravity does the work. You release the ballast and then you go up thanks to the thing being less dense than water. Bathyscapes were basically gasoline balloons with the steel sphere to house the crew

>> No.15521684

>>15521314
The problem is that with this cylindrical shape is you need much thicker and heavier walls compared to a sphere

>> No.15521751

>>15521649
See >15521290
And do try to pay attention

>> No.15521783

>>15521751
The crane and cable idea is stupid

>> No.15522007

>>15520924
>How do I go about getting permits and stuff?
Why would you want to beg someone, and have to pay extortion money, to get some "permission slip"?
Fucking grow a pair and do what you want faggot. Cucks ask permission.

>> No.15522082

>>15521684
Yes, and the tradeof is being able to more easily slide over the sled when lowering the sub into water, more easily board and leave the sub, less friction when the sub is moving forward, more sensible layout of floor where multiple passengers can lay upon and probably a few other things too.
I'd be curious to see how much heavier though, so do show your calculations.

>> No.15522090

>>15521281
>It takes special equipment to keep it from rising too fast and killing everyone in side.
why would they die from that?
would it not be a closed system so that the pressure outside would not affect it?

>> No.15522112
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15522112

current thing enthusiasts will love this

>> No.15523204
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15523204

>>15520924
Here's a good reference material.

No permits needed.

If you're going shallow; Check out mahogany marine plywood (recommended by the United States Navy and the Woods Hole Oceanographic Institution (WHOI)).
Fiber reinforced concreted works great (short term) for habitats and as a disposable pressure vessel as well. You will have salt intrusions and a limited life span, but for the cost who cares.

Get to reading:
https://seawifs.gsfc.nasa.gov/FRANKLIN/DOCS/Manned_Submersibles_by_R.Frank_Busby.1976.reduced.pdf

>> No.15523533

>>15523204
Op here. Thank you for this. I was trying to price out titanium. Had no idea there were other materials generally acceptable. That's a big help