this post was submitted on 20 Oct 2023
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Japan Becomes 1st Country Ever To Fire Electromagnetic Railgun From An Offshore Vessel::Japan has successfully test-fired a medium-caliber maritime electromagnetic railgun from an offshore platform, as it continues to advance its defenses in the face of burgeoning regional security threats.

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[–] GrammatonCleric@lemmy.world 61 points 2 years ago (2 children)

Of course the country that makes games, anime and manga full of giant mechs with railguns does it first

[–] buycurious@lemmy.world 19 points 2 years ago (2 children)
[–] seaQueue@lemmy.world 5 points 2 years ago

Stop asking for a grey goo incident or we're going to have a grey goo incident

[–] Hadriscus@lemm.ee 3 points 2 years ago

wake me.... when you have railguns

[–] Substance_P@lemmy.world 3 points 2 years ago

I hear that there is no other way to kill Godzilla.

[–] mo_lave@reddthat.com 56 points 2 years ago (1 children)

They fired a certain scientific railgun. Nice.

[–] prashanthvsdvn@lemmy.world 21 points 2 years ago

Hey look out for a certain scientific accelerator and a magical index as well.

[–] orclev@lemmy.world 36 points 2 years ago (6 children)

I could have sworn that the US navy has had experimental railguns on carriers for a while. I don't think they ever intended them as actual functional weapons, but I was pretty sure they had at least done some tests with them.

[–] YoBuckStopsHere@lemmy.world 40 points 2 years ago (1 children)

The U.S. Navy hasn't declassified their tests so there is no official record. Japan was the first to openly do it.

[–] steltek@lemm.ee 21 points 2 years ago (3 children)

Uhh, I dunno how much declassification you're looking for but here's the US Navy's Youtube channel with a video of some test firings: https://www.youtube.com/watch?v=OSce3nEY6xk

IIRC, the problem wasn't that it didn't work but that the barrels wore out too quickly to be useful. I suppose they could have put this on a Zumwault like originally intended but that would just be a PR stunt when the main problem was throwing the gun away after 10 shots.

[–] HurlingDurling@lemm.ee 7 points 2 years ago

I think there was an episode of Evangelion where they posed the same problem and solved by having multiple guns to switch to. I guess it's common knowledge of thermal dynamics? IDK

[–] SpacetimeMachine@lemmy.world 5 points 2 years ago

This is talking about firing from an off shore vessel though. They declassified the test firing on land years ago.

[–] PipedLinkBot@feddit.rocks 2 points 2 years ago

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[–] Ghostalmedia@lemmy.world 10 points 2 years ago

From what I see, it looks like they never actually put the thing on a boat. All the testing was on land.

And after years of R&D the US Navy put the project on ice recently. Apparently they don’t think it’s worth the cost.

[–] Blamemeta@lemm.ee 4 points 2 years ago

We have on land. They just suck up a lot of power and missiles do the same job but better

[–] NotMyOldRedditName@lemmy.world 2 points 2 years ago

I think I've only ever seen tests from land, but I'd be shocked if a ship didn't have one, but I wouldn't be if they were quiet about it

[–] crawancon@lemm.ee 1 points 2 years ago (1 children)

yeah transformers rise of the fallen featured a navy ship with an EM gun... but none that we have today are unclassified. Japan's was first!

[–] AA5B@lemmy.world 1 points 2 years ago

It was classified there too

[–] SkybreakerEngineer@lemmy.world 0 points 2 years ago (1 children)

You're thinking of EMALS. It's a catapult for aircraft, not a gun. Pretty close in concept though. Had some teething issues, turned out larger than expected, but works just fine now.

[–] NOT_RICK@lemmy.world 1 points 2 years ago

The GAO says it still has reliability issues that won’t likely be ironed out for about a decade.

[–] 8BitRoadTrip@lemm.ee 16 points 2 years ago

Sad Zumwalt noises.

[–] makingStuffForFun@lemmy.ml 11 points 2 years ago (2 children)

My mate in high school used to make these. He'd wind his own electromagnetic little tunnel thing, apply current, and the little metal projectile used to shoot through walls. Was pretty amazing.

[–] SpacePirate@lemmy.ml 11 points 2 years ago (2 children)

That’s a gauss gun, not a railgun. Still cool, though.

[–] Hadriscus@lemm.ee 4 points 2 years ago (2 children)

I assumed they were synonyms ? how do they differ ?

[–] papertowels@lemmy.one 8 points 2 years ago

They're pretty similar, in that both use electromagnetic forces to launch a projectile.

Gaus cannons use a field around the projectile, applied by wires wrapped around a tube, whereas railguns use two rails touching the projectile to conduct the magnetic field through the projectile.

[–] NoSpotOfGround@lemmy.world 2 points 2 years ago (1 children)
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[–] makingStuffForFun@lemmy.ml 4 points 2 years ago

Ahhh ok. He'd do them with the capacitors from disposable cameras that the local camera store would give him.

[–] Hadriscus@lemm.ee 6 points 2 years ago (1 children)

That's pretty cool, and dangerous

[–] z00s@lemmy.world 4 points 2 years ago

The Venn diagram for those two things is just a single circle

[–] MossyFeathers@pawb.social 9 points 2 years ago

They should try getting info on whatever they can about MARAUDER. Might be better at intercepting missiles than a railgun that fires physical projectiles.