Electromagnetic Railgun

>just around the corner
Faggots have been saying this for 30 fucking years.

>>34345289
Every time they got around the corner, there was another corner behind it.

>>34345370
this

Its the curse of new technology.

I think that video is VASTLY overstating how rapidly that thing can fire.

>>34345370
we must have gone around the block by now

Ye have little faith.

http://www.nationaldefensemagazine.org/articles/2017/6/15/navys-electromagnetic-railgun-project-progressing

>“We are gradually increasing firing rate and energy level, and evaluating and grooming the system as we go,” he said.
ONR plans to conduct tests at five rounds per minute in June, and anticipates that the railgun will perform rep-rate operations at 32-megajoules of energy by the end of the year, Boucher said.

>>34345528
>progressing
>anticipates
Sounds like the average stock holder meeting for a company that's not doing so hot.

>>34345589
better than no news

>>34345589
they're revolutionizing how we attack hard targets anon, cut them some slack.
These things are going to change battle ship firing envelopes and pretty much force enemy navies to fly their planes into our radar and air defense systems if they don't want to get shit on from the horizon.

5 rounds a minute and you're talking about knocking an enemy boat/radar installation out with 3 boats in a half minute and you can do it with simultaneous impact solutions and no known countermeasures. it's kind of a big deal.

Anyone have a clip from that new Resident Evil movie wherein some sniper broad wipes out a city block with a Sniper Wolf style railgun? Totally related post

>>34348001
This. You can knock out a Tomahawk but you can't knock out a tungsten dart your radar can barely even register.

>>34348276
You can knock out both. The latter is cheaper.

>>34349176
How do you knockout a tungsten dart smaller than your forearm traveling at mach 7?

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>>34345273
>need a power source that no ship on earth will ever be able to carry onboard
you do knwo that the smallest nuke plant that they can fit onto a ship with the lastest tech is just a 1.3mw right? and that thing need at least a 3mw generator to charge the warehouse size batteries for at least 10 hours before firing again.
I guess you can say it's a "corner" but that corner is the size of a planet

>>34345273
Fake bullshit design.

>>34349268
Nuke plants at ship scale actually suck at peak power output but excel at endurance. The Zumwalt class's engines are capable of providing the necessary output.

>>34345455
It's more like a maze. Any particular corner could be the exit but you don't know until you get there.

>>34345273
>purpose of railgun is to drastically cut cost of munitions
>military still finds a way to make a solid machined projectile more expensive than a cruise missile
>gib monies plox
>need monies for our stupid toys and crony companies that we will get jobs on board of directors and consultation deals

>>34345273
Is it a bit of marketing bullshit that they take 6 1 inch plates to show how much penetration that round has?

What if they had a chunk of 6 inch armor?

>>34345273
>woah guys check out this 15 year old video of the same railgun they've been trying to design a power source for, for the last 20 years

never happening til we figure out some serious energy related issues, and the need to fund the technology for a new naval gun is a low fuckin priority.

>>34350330
A solid block of armor is usually worse than several thin sheets. Cracks can't travel between the layers, so the top layers take more damage but it doesn't spread to the lower layers.

>I-It will totally be ready soon guys!
I still believe we will have deployed lasers before a railgun.

>>34350788
No shit. There's an industrial base for lasers so its easy to build a weapon system.

>>34350845
My only hope is that some crazy bastard figures it out in his garage by accident and gets help from physicist/copywritelawfag anon from the instant(?) death thread.

>>34350788
We already did. USS Ponce.

>>34349230
I'm not that anon, but I was just thinking about what could be done to protect against this

Magnetic fields that act as sloped armor? Switch to submersible ships?

>>34351134
Any magnetic field strong enough to repel a railgun projectile would make EM communications or sensors completely impossible, so they're a non starter.

>>34351151
perhaps not enough to repel, but enough to guide or "bump" ii just enough degrees to the left or something to keep it from hitting the boat

>>34351160
Do you not have any concept of how big even a destroyer is? To be able to adjust the flight path of a railgun projectile by a sufficiently wide margin to miss a ship with only a minute angular shift means you have to effect this change REALLY far away from its destination. Trying to do so with a gigantic magnetic field is just as hard as making a magnetic shield.

There isn't any real countermeasure beyond heavy armor, that's why all the dosh is being poured into this long term program. That is also why lasers are getting attention recently as well, since if you have lasers you can shoot down enemy AShMs (or any kind of missile in any environment in any theater) while nothing can be done to shoot down railgun projectiles.

Combine the two technologies and you get a "fuck you all the past 60 years of naval development are now obsolete" scenario.

>>34351254
Now you've got me imagining a BBG-1 Iowa II class battleship with railguns, lazors, and a short flight deck for helos, tiltrotors, and F-35Bs capable of wrecking entire fleets all by itself.

>>34351134
Shoot first.

>>34351418
>shoot first
>the railgun destroys whatever shitty missile you shot and destroys your shiny ship too

>>34349268
maybe 10 years ago.

battery tech is advancing rapidly and thats just what's available to civs.

the real breakthroughs will be room temperature superconductive materials, then you're gonna see some serious shit

>>34351579
Glass-ion batteries are coming too.
>can be made from sand and seawater
>better energy density than Li-Ion
>can't explode when overvolted

>>34351627
>ships drudging up sand and sucking water to manufacture powercells at sea
my future boner cannot be contained

>>34351579
You mean like carbon nano-tubes? Which already exist?

>>34351709
Carbon nanotubes are poor conductors.

>>34345589

Spoken like someone that's learned everything they know about business from TV.

>>34351627
I thought graphene capacitors was where it's at.

>>34352420
Graphene is still lab scale only. Glass ion should be faster to market.

>>34350788
Different weapons, different use

>>34352764
Glass hasn't been seriously considered until the past year. It will take a long time.

Energy sector sucks nothing gets done until an entire society starts getting desperate. Then suddenly: FUNDING.

All of this will take decades because no one cares about energy until they have to.

>>34345273
>just around the corner
everything that's been made public is 30 year old tech, barring maybe the capacitor banks since a lot of work has been put into making them smaller since SHIVA STAR.
it's a budget problem. No one wants to buy the shit old railgun when we have a better one almost ready that's still secret.

>>34345273
So the thing to take from this video is the railguns in the video are back to using the old WW1 shrapnel rounds full of ball bears.

Fantastic.

>>34349230
lasers?

given magic radars that can detect anything, is there any modern weapon system that can take out a railgun projectile flying at those speeds??

>>34353950
Now its just hot tungsten slag moving at incredibly high speed

>>34353950
unless you use an extremely powerful laser that can pulverize the tungsten rod, it doesn't work

a sufficiently powerful rail gun aboard ships could theoretically destroy any known or projected anti ship missile, whether cruise or ballistic. It could even be used for ICBM defense

>>34354211
yes, and given enough power time to target is extremely small, which gives even less ways for a ship to defend itself

>>34345273
>couldn't afford LRLAP so abandoned it
>muh rail gun

hmm

>>34354231
We could do away with CWIS and adopt Railguns and Lasers. But man oh man do I want to see a nuclear powered destroyer or cruiser with a free electron laser. You could literally cut an enemy ship in fucking half.

>>34354259
but it would need to get way too close for that, it's not worth it

>>34354257
LRLAP was prohibitively expensive, the rail gun does away with all of the fancy propellant and gives you machined slugs. The buy in cost of the rail gun is expensive, but it effectively gives you a lot of safety be eliminating the magazine of ships, and keeps everything running efficiently.

>>34354277
Clearly we need a high power maser so we can bounce the beam off the ionosphere onto enemy ships.

>>34345289
more shekels stupid goyim

>>34354257
LRLAP only made financial sense if it was bought for 64 AGS systems. Only 6 AGS are being built, so the per unit cost went sky high. The projectile worked perfectly fine.

The hypervelocity projectile, HVP, has a common design for railgun, MK 45, AGS, and Army 155 mm weapon systems. There's over a thousand different weapon systems already in use by both branches, so the unit cost will be lower just by the shear number of them being procured.

>>34354146
So it's a British nightclub?

>>34354393
He said hot not ugly.

>fin stabilized

trash

>>34354645
t. naval guns designer

>>34352764
>Graphene is still lab scale only.
Alright. I haven't been keeping up. It seemed like something everyone was scrambling madly towards last time I read about it.

>>34351134
Explosively formed penetrator-based active denial system.

>>34354971
Carbon fiber is being mass produced, but graphene is much harder to get right.

>>34354645
fins > thrusters

>>34351556
Shoot first *with your own railgun*. Did that really have to be explained?

>>34356538
What own railgun? Barring catastrophic espionage nobody else is going to have functional naval railguns for 30 years.

>>34356549
The railguns the Navy are showing as tech demonstrators are fairly old tech, except for certain power storage solutions and things like guided shells.
The Chinese could build one with p similar capabilities fairly quick. It's the stuff the Navy doesn't show that has the advantages.

>>34356549
>Barring catastrophic espionage nobody else is going to have functional naval railguns for 30 years.
>Barring catastrophic espionage
So China will have them by December and Russia will probably take a year or two after that.

>>34356592
>>34356642
Even with the plans in hand, China is unable to manufacture some advanced parts. They still have trouble with jet engines after decades of attempts.

>>34350978
>Ponce
lmao

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>>34357967
Bump this

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>>34356722
>China build railguns
>manufacturing defects mean they keep breaking down
>ships have to carry multiple guns to compensate for reliability
>eventually they just build a Montana knockoff with 12 railguns

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>>34351640
MFW

>>34351134
The Bismarck took 50 minutes of point blank shelling to sink. Maybe heavily armored large ships, bristling with rail guns, that are "to-big-to-sink" even if you poke a bunch of small holes with tungsten slugs will see a comeback?

[spoiler] I want big ships back :( [spoiler]

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>>34354327

>>34356592
>>34356642
china couldn't even into ballpoint pens a few years ago, what the fuck you're talking about?

>>34356549
What answer do you want, faggot? There is no existing defense against rail guns. That is the answer

>>34348095
>clip

>>34351627
http://lacey.se/2017/03/29/on-the-skepticism-surrounding-the-goodenough-battery/
Goodenough BTFO. It's just really bad science. I'll give the guy a break, since he's 94, but he should retire.

>It uses a form of electromagnetic energy known as the Lorentz force

>>34358604
That was my point.

>>34358604
>>34359396
Any existing defense platform will work against railguns, but it will take more munitions to guarantee success.

>>34359549
It's impossible to hit something so small going so fast, from the moment you can see it on radar you have less than 5 seconds to do anything

>>34359627
They're ballistic not sea skimming projectiles and the terminal velocity isn't mach 7. There will be a sizable engagement window.

>lasers, railguns, space force
based future

How is this better than guided missiles?

Wouldn't these projectiles be defeated by simply evasively maneuvering??

>>34359996
Yes, unless they fire low enough to make detection difficult.

>>34359763
Railguns as currently designed are direct fire sea skimmers.

>>34349607
The Zumwalt class is also shit.

>>34359763
Artillery doesn't come in at terminal velocity outside of mortars at high angles.

>>34353950
It would require an incredibly powerful laser given that tungsten has immensely high melting point, and the dart would be moving fast enough to deny much targeting time.

>>34359996
OP's video said the railgun munitions can change trajectory in flight from data sent by radar. for the 25k price tag, I would guess the stabilizers have adjustable surfaces to allow for direction change

>>34352403
ouch that mustv hit close to home buddy

>>34358119
No need/point in heavy armour.
Put all the reactors/vulnerables and sufficient buoyancy sealed off below the waterline and incoming rounds are only taking out your exposed weapons. A railgun slug isn't going to go very far through water.

>>34345528

And to think it will only take an entire cargo ship to tow all of the batteries and generators needed to field one on a tugboat.

>>34359627
5 seconds is enough for an automated launch system to do something. The question is whether such a system can keep up with a sustained barrage of fire, long enough for whatever return fire it sent to take effect. The key here is that railguns belong to the cannon family, not missiles. And the completely inert, solid metal variants of railgun ammunition are meant to be dirt cheap compared to even other existing cannon rounds in service.

Can a fancy anti-railgun point defense missile launcher / cells shoot down incoming shots? Absolutely. Might even be able to deflect more than one railgun round per explosion if it is positioned just right. But the ship will run out of missiles by the third or fourth salvo and that is only going to take less than a minute for a single railgun. The country fielding those ships will run out of money before a single railgun battleship has even finished its magazines.

>>34361609
>an entire cargo ship
Now the Yanks are copying the Flips super naval strategy!

>>34361414
How the hell does that work?
Railguns fire dumb projectiles. If you're going to sea skim beyond the horizon you need to have something like a missile with a active engine constantly correcting course to correct for the curvature of earth.

>>34361688

What is gravity for 500.

>>34361609
>batteries
>generators
if you don't know what you're talking about, why post?

>>34361754

>I believe that electricity is summoned by magic!

You have to make the electricity and store it in a large enough amount to power the magnets to propel the projectile. The prototypes they showcase have essentially an entire building housing electrical equipment offscreen.

>>34361804
They're not using fucking batteries to power the railgun, you retard. They are the worst tool for the power needs of a railgun. Anyone who thinks they're powering these by battery is a moron who's opinion should be disregarded.
Huge amounts of money have been thrown at the capacitor bank tech that powers these fuckers.

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>>34361815
spoiler: its both

>>34361815

>A capacitor can store electric energy when disconnected from its charging circuit, so it can be used like a temporary battery, or like other types of rechargeable energy storage system.

Eat shit. I dont give a fuck if its a battery or simply acting as a battery it has to store a very large charge and that takes a huge amount of weight and space to do.

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>>34361980
>batteries inside a battery for a battery of battery powered artillery

>>34362201
it shoots batteries too!

>>34358045
And it still breaks down, so they turn it into an island Philippines-style.

>>34359763
Still coming in at like mach 5.

>>34345528
>23.6 million ft-lbs

>>34350322
Money is imaginary and meaningless, Anon. Railgun tech prevents debt collection for another 30-40 years

>>34345273
>Magnetic Artillery.
>Mach 7; the speed of sound
>Targeting at mill second.
[spoiler]Vigilo Confido[/spoiler]
Damn warfare is taking to next level.

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>>34345273
rail gun pussies

16inch funs are the best funs

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>>34359892

i laughed.

>>34366544
>>34350322
The whole thing is designed to filter money into the hands of people who own weapons development companies like the F35 was and provide pointless jobs that exist to just keep cycling money through the economy.

>>34349230
>How do you knockout a tungsten dart smaller than your forearm traveling at mach 7?
>lasers?

plasma


http://www.military.com/video/off-duty/tech/new-progress-on-plasma-weapons/2324951333001

>>34366544
>Railgun tech prevents debt collection for another 30-40 years
this guy gets it

>>34366793
fuck off vatnik

>>34366740
16 inch funs are less accurate than shotguns in video games

>>34349268
What? The DGs on the APL president truman(the first post panamax container ship built) were 1.3 megs. As someone who spent a year and a half of his life on that piece of junk i am personally offended by your stupidity.

I absolutely love the fireball generated when it fires, it's like watching the gun incinerating itself with every shot it takes.