this post was submitted on 11 May 2024
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NonCredibleDefense

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[–] Kraiden@kbin.run 110 points 1 year ago (3 children)

you had me at "emotional support fish"

[–] mojofrododojo@lemmy.world 37 points 1 year ago (2 children)

I lost it at 'buoyancy makes shells easier to move around'

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[–] Phoenix3875@lemmy.world 21 points 1 year ago (1 children)
[–] Mikufan@ani.social 54 points 1 year ago

No they can't, that would be emotionally devastating.

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[–] TotalFat@lemmy.world 71 points 1 year ago (1 children)

Use gasoline instead of water. Then you can eliminate the fuel tank. Side bonus would be protection from microbes for the crew. The government should also expect a reduction in pension and social security costs.

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[–] LouNeko@lemmy.world 67 points 1 year ago (1 children)
  • also a bigger flex on the locals dying of dehydration.
[–] Mikufan@ani.social 22 points 1 year ago

Great point!

[–] deegeese@sopuli.xyz 47 points 1 year ago (3 children)

Ask the crew of the CSS Hunley what water and shockwaves does to human bodies.

[–] Mikufan@ani.social 55 points 1 year ago (2 children)
[–] marcos@lemmy.world 15 points 1 year ago (1 children)

Yeah, I would rather not ask either.

Don't ask what all that weight does to the running surfaces either. Some things it's better to just not know.

[–] Mikufan@ani.social 25 points 1 year ago

A modern tank is already about 70 metric tons, 3 or 4 more wont matter that much.

Yeah that sounds kinda boring. What’s the worst that could happen

[–] tal@lemmy.today 11 points 1 year ago* (last edited 1 year ago) (2 children)

There (shouldn't) be any blast from the gun firing released inside the tank itself. So, you've got vibration that'll pass through the water. It might increase that, but that's not direct exposure to the blast.

There's still air around the muzzle. Maybe water makes up some of the distance, but there is still a buffer of compressable air in there.

I'm not sure that it wouldn't cause problems, but I'm not sure that it wouldn't, either. I don't think that it'd just be the "depth charge near people in the water" issue.

EDIT: Though some artillery has that recoil-compensating mechanism where the breach moves back when the gun fires. I dunno whether that's true of the main gun on an MBT, but if so, that might cause issues.

googles

Yeah, here's an Abrams doing it. That might suck.

https://youtube.com/watch?v=sC2ePKRvo9k

[–] deegeese@sopuli.xyz 13 points 1 year ago (3 children)

Water transmits shockwaves to meat bags far more efficiently than air. Everyone’s lungs will be shredded if the tank is hit by an RPG.

[–] hemko@lemmy.dbzer0.com 14 points 1 year ago (1 children)
[–] onion@feddit.de 12 points 1 year ago
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[–] Mikufan@ani.social 10 points 1 year ago

I mean just put a pop-up valve at the top lol.

[–] bradorsomething@ttrpg.network 9 points 1 year ago

Does anyone have a confederate ouija board?

[–] Kedly@lemm.ee 42 points 1 year ago (9 children)

I know this is non credible defense, but I would absolutely LOVE a breakdown of all the ways this is a terrible idea

[–] FiniteBanjo@lemmy.today 26 points 1 year ago* (last edited 1 year ago) (3 children)

It might unironically be a good idea except for the increased weight. Also shockwaves from impacts.

[–] CheeseNoodle@lemmy.world 33 points 1 year ago

Yeh the shockwaves would just transition perfectly into the crews bodies and turn them into paste.

[–] LwL@lemmy.world 13 points 1 year ago (1 children)

My first thought is the crew would be cooked alive

[–] PlexSheep@infosec.pub 22 points 1 year ago (4 children)

Yeah I thought so too. Besides that, Oxygen running out would be a problem, and perhaps reliability of diving equipment.

And every operator would need a full one diving suit too, increasing production and maintenance cost.

Perhaps the tank would rust?

More fuel needed.

Electronics would need to be waterproof, otherwise they short circuit, breaking and perhaps harmin the crew.

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[–] Hylactor@sopuli.xyz 15 points 1 year ago (3 children)

The first issue that comes to mind is the noncompressible nature of water. If you've ever played in a pool and marveled at how clearly you can hear a digital watch beep all the way from the other end, you can scale this up for any pressure wave. With very unpleasant results.

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[–] bradorsomething@ttrpg.network 8 points 1 year ago

In the desert, bees swarm water.

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[–] neidu2@feddit.nl 30 points 1 year ago

If out of supplies, the tactical emotional support fish can be eaten as well

[–] Zehzin@lemmy.world 22 points 1 year ago* (last edited 1 year ago) (1 children)

Explosions will fuck you up harder underwater though won't they? Or is that when the explosion happens underwater? I feel like there was a MythBusters episode on this

[–] halvar@lemm.ee 20 points 1 year ago* (last edited 1 year ago) (1 children)

should have written "can piss while operating tank" at the end

[–] Vilian@lemmy.ca 25 points 1 year ago (1 children)

who said that you can't on a regular tank?

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[–] tal@lemmy.today 16 points 1 year ago (1 children)
  • Probably eliminates a lot of the problems with making a tank amphibious.
[–] Mikufan@ani.social 12 points 1 year ago (1 children)
[–] Zehzin@lemmy.world 6 points 1 year ago

They should add water to submarines too

[–] psmgx@lemmy.world 16 points 1 year ago (6 children)

Wouldn't hydrostatic shock be a serious problem?

[–] bradorsomething@ttrpg.network 27 points 1 year ago

Only briefly.

[–] BraveLittleToaster@lemmy.world 22 points 1 year ago

You can't get shocked because tanks are grounded

[–] Mikufan@ani.social 9 points 1 year ago

Not really, there is a pop-up valve on top and there is compressable air inside as well.

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[–] yokonzo@lemmy.world 14 points 1 year ago (19 children)

That water would boil real fast

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[–] Ibaudia@lemmy.world 10 points 1 year ago (1 children)

Wouldn't the water also insulate heat inside the cabin?

[–] ILikeBoobies@lemmy.ca 8 points 1 year ago (2 children)

Yes water cooling works because water conducts heat better than air

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[–] KillingTimeItself@lemmy.dbzer0.com 7 points 1 year ago (2 children)

armor cookoff is one of the bastardized terms of all time.

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This hearkens to the reason they're called tanks in the first place.

[–] Furbag@lemmy.world 6 points 1 year ago (1 children)

If we were playing War Thunder, this would be "CREW KNOCKED OUT" just waiting to happen.

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