Railgun https://www.youtube.com/watch?v=bwm _82S_7iM

>>33329051
Is that a knockoff of the Pirates of the Caribbean theme song?

>>33329105
The rail gun now needs a silly hat and we can make a movie.

>>33329105
i think that fits, pirates would use raillguns i think

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>>33329105
>can't unhear

>>33329051
Why is it square?

>>33329051
Why do they feel like they have all made some sort of great accomplishment?

Railguns are a fundamentally well-understood concept. Actually building one is far from an achievement. The real achievement would be supercapacitors, high temperature superconductors, and next-gen power generation.

>>33329401
sure thing bro

>>33329183
Basically they found out that a rectangular and I-beam shape has a stronger/better magnetic field something or other and is more efficient than a round shape.

>>33329418
Anyone who has taken an undergraduate electricity and magnetism course has seen the fundamentals of how railguns work. They typically examine the problem of a conducting rod between two wires, and finding the force on the rod due to the magnetic field generated by current within the wires.

Sorry you haven't achieved any amount of higher education.

>>33329051
That gun looks like a bae

>>33329401

Making a practical rail gun will absolutely be an accomplishment. Solving key problems like heat management and automatic fire is an ongoing process.

>This fascinating technology, which uses high-power electromagnetic energy instead of explosive chemical propellants to launch projectiles farther and faster than any previous system, is currently in Phase 2 of the program. During this phase, we will advance the railgun by maturing the launcher and pulsed power from a single shot operation to a multi-shot capability. Auto-loading and thermal management systems will also be incorporated. We received a $34.5M contract from ONR in 2013 to pursue these efforts.

http://www.baesystems.com/en/product/electromagnetic--em--railgun

>>33329441
well ok, so where is your railgun ?

>>33329441

I had sex with your wife.

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>>33329401

>>33329552
Am i reading this right, they need 12000 liters capacitor for 120mm tier tank gun?

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>>33329401
>(DTI) has introduced a new, ultra-compact high-voltage power supply that provides an order of magnitude increase in power density over commercially available high power capacitor-charging supplies. This power supply was developed to power the US Navy Electromagnetic Railgun (EMRG) energy storage system under the Navy's Small Business Innovation Research Program (SBIR). The DTI PowerMod™ 300 kW Compact Power Supply provides over 10 times the power density over commercially available units;

Somebody call /diy/, they made it out of fucking shipping containers.

>>33329183
Current needs to pass through the projectile laterally. Something square or rectangular (or in some cases convex rectangle/'I'-shaped) is easier to engineer since your brish tracks can be flat.

>>33329635
Practically, yes.

>>33329552
>>33329654
These are the things we should be celebrating, not the creating of the railgun, but the technological advancements that have been made to allow such a weapon to be developed.

>>33329721
It would be a big tank.

>>33329759
Is this damage control, or do you actually think you're this smart?

>>33329779
4u

>>33329759

gay

>>33329139
>egyptian issue full-face helmet.

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>>33329790
It's funny but I was thinking his exact thing. This guy has obviously had some college classes, learned some basic concepts there and believes everything is now obvious and easy and anyone who thinks otherwise is ignorant. Protip for the guy that will almost certainly read this, nothing is as easy as it looks/sounds

Anyone ready to see the Chinese "unveil" their definitely-not-fake-or-cgi rail gun in a few days now?

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>BAE: Come over
>ME: I can't, I have work
>BAE: I've weaponized a railgun
>ME:

>>33329051
Have one vs ballistics gel?

>>33329401
Do you see the engineers and scientists cheering anywhere? It's just another test. They don't edit the footage and put it to a faux film score.

>>33329183
It's a cheap test projectile. Actual combat projectiles will be more aerodynamically shaped with a square sabot.

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>>33329955
No, nothing is as easy as it looks.

>>33329051
Why haven't they aimed this thing up in the air at 45 degrees and shot it yet?

Is it because they're afraid that once they do that, it's terrible accuracy at long ranges will be revealed?

>>33330288
>shoot hypervelocity slug into air
>destroy hubble telescope
>debris field destroys gps
>debris falls back to earth
>it lands on rail fun

Sheeeeeeeeeit

>>33330288
The max range for a 32 MJ railgun is 110 miles.

The gun range at Dahlgren is 20 miles long.

You go ahead and figure out why we won't shoot at a QE of 45.

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>>33330288
Their range isn't large enough. The rounds would be guided. iirc they plan on installing a railgun at white sands to do full power shots.

>>33329051
oh god the music

even dubstep would have been a better choice

>>33330386
The government tests missiles that go much further, but they can't test a cannon? Give me a break.

>>33330442
Normalfags love "dramatic" disney shit.

>>33330450
Holy shit is the idiot for real?

>>33330450
Missiles are tested at missile ranges, which are much longer. As >>33330395 pointed out, they're planning on a railgun at white sands missile range. Dahlgren and their gun range is the first step.

>>33330395
>The rounds would be guided.
So the expensive parts of a missile would still be required? All they're saving on is the cheap rocket boosters, but at the expense of needing experimental railguns with complex electronics?

This whole thing is pork. It should be cancelled and the people who conceived of it put on trial for defrauding American taxpayers.

>>33329790
>>33329955
>>33330151
If thats the same guy, then you fucks just got BTFO.

>>33330526
They could still launch dumb projectiles too though right?

>>33330538
Maybe? Could they hit anything with them though?

>>33330526
The project has a guidance system goal of <$1000 with the complete round at $50,000.

>>33330549
stationary targets, sure.

much less effect on moving targets but maybe once in a while

>>33330526
Do you not understand anything about this weapon at all?

>>33330583
>goal
My sides just exploded so energetically, they have more weapon potential than this railgun.

>>33330535
How is that "btfo"

>>33330644
They were claiming the guy was on "mount stupid", but then he posts "operator analysis of deep inelastic scattering". A quick google yields that that is quantum field theory. No one who has had a few classes would be at the level of quantum field theory.

>>33330641
GPS/INS is cheap. It's not going to have a seeker like a missile.

>>33330691
Yes, it is on the level of QFT... non-abelian gauge theory. No, I am not the same person who was posting about advancements, I was just agreeing that nothing is easy...

>>33330691
True, but it's more the fact he was claiming that building a weaponized rail gun is easy. Although he correctly points out the biggest problem is energy density, it doesn't mean the rest of it is child's play by any stretch.

>>33330724
You know what's even cheaper than a rail gun with GPS/INS projectile guidance?

Missiles with GPS/INS guidance.

>>33330794
Because tomahawks are so cheap amirite

>>33330386
I thought the projected range for the one they want to put on the zumwalt was around 200 nm? Is this a separate project or is it not far enough along to meet specifications?

>>33330759
I don't see where it was claimed to be easy. I agree that the basis is inherently simple, but the practicality of having (semi) portable MW+ power generation and storage is much more impressive IMO than the gun itself. The thing about physics is you have to do all this complicated 'stuff' to do something 'simple'. Like spend $300 million on research and developing special solenoids and detectors just so you can study muon decay.

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>>33330641
That's the 64MJ gun.

>>33330831
Because railguns are so cheap amirite.

Rocket boosters ARE cheap. They're cheap as dirt. The expensive parts of tomahawks are the rest of it. If these railguns can do away with all the expensive shit and just use stupid cheap GPS, then you could do the same with a projectile launched by a rocket booster. The only thing the railgun does is replace the booster.

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>>33330838
64 MJ is required for 200 nm. You're not going to find a timeline for that energy level.

>>33330903
> The only thing the railgun does is replace the booster.

That's the point. It eases logistics significantly. You would have to reload VLS in port less often. You just need fuel from a replenishment ship. The HVP magazine size would be much greater than the available VLS cells.

>>33329051
I always like how with all this money thrown at them and soopersciencyness of it all, their vids use the same early later80's/early 90's video presentation software

>>33329051
Very nice. How long till we figure out FTL and put both on a starship to conquer aliens?

>>33330944
That's a ridiculous micro-optimization which will never pay itself off.

>>33330583
>something something about LRLAP rounds projected cost of $50,000
>something something about LRLAP cancellation after it reached $800 000 per round low earth orbit

>>33330903
It goes way fucking faster. You can't shoot it down. I wouldn't be surprised if it wasn't even detectable. It's a rifle vs. a gyrojey

>>33331769
Who the hell is shooting down the US Navy's missiles?

>>33331769
Rockets can go at any speed.

> You can't shoot it down
And you can shoot down same warhead launched buy rocket booster? How will enemy AD know what launched this warhead again?

>>33331816
Rockets can't go mach 9, which is the goal of the project. So far they've gotten it to mach 7. A smaller projectile going at an extremely high rate of speed is alot more difficult to shoot down. Hell, that's assuming it could be detected. I don't really know if it can or not

>>33331974
Pointless, just have the invisible super stealth F-35 drop bombs. :^)

>>33331766
>something something 90% of the order was canceled so unit cost went up exponentially
>something something HVP has over a thousand different gun systems already built that can use it so the order will be massive

>>33332024
>something something implying the same damn thing won't happen to this meme cannon

>>33329051
>all dem white people
>only two women

Where's the diversity?

>>33331974
>Rockets can't go mach 9, which is the goal of the project.
>i don't know the Tsiolkovsky rocket equation
>i don't know that multi-stage rocket can achive literally any speed

> A smaller projectile going at an extremely high rate of speed is alot more difficult to shoot down
What does prevent same small projectile from been launched by rocket? Oh that is right. Nothing.
>he doesn't thought that rocket booster can separate from warhead after boost phase

>>33332067
It doesn't matter what happens to railgun. HVP will be ordered by the tens of thousands for the 5" naval guns and 155 mm army artillery pieces.

>>33332124
>>It doesn't matter what happens to railgun.
The people responsible for this fraud need to be hanged. If the railgun doesn't matter then the people responsible for it need to be hanged for spending taxdollars on it.

>>33332145
You're very obtuse. HVP doesn't live or die on railgun. LRLAP died with AGS. That's the whole thrust of this conversation.

>>33332116
That's all well and good, but now you're talking about multi staged massive rockets which take comparatively longer to get up to speed and require a dick ton of fuel. Yes they can theoretically go mach 9, but now you've completely departed from the point of cheap and small. No missile going that fast is going to be 23lbs

>>33332183
I'm saying that the people responsible for the railgun need to be held accountable. If the shell is good for other things, then fine, but that doesn't excuse the railgun fraud.

>>33332262
How is it a fraud? It's on schedule, under budget and delivering results

>>33332273
We'll see.

>>33332252
>>33332116
>i don't know the Tsiolkovsky rocket equation

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>>33329515
Literally you make one in any decent Physics 2 course, it's just a problem of capacitance and scale of energy required to make it practical as a weapon.

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>>33332291
We'll see what? The thing we all saw? I can't believe you're this upset. It's like it's the first time you've seen how much money goes into government projects and are suddenly outraged

>>33332333
We'll see this project never come to fruition.

>>33332333
>We'll see what?
Cancellation of HVP?

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>>33330151
Look, I can post pictures of books to seem smart too

>>33332308
You keep saying that like it changes anything. That because it's mathematically possible to make a missile that fast, it is also reasonable and cheap to do so.

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>It's an engineering students measuring each other's dicks on 4chan episode

>>33332333
The lifetime cost of the railgun program is under a billion dollars, which is pretty good considering they started in 2004 with nothing but scraps from the Army.

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>>33331026
That depends on service life, there's also the issue of rocket motors being logistically sensitive, Several times Aerotech, PEPCON and other Ammonium Perchlorate manufacturers do have accidents which can cripple the supply chain. It makes sense to try to have a long term solution.

Large rocket boosters do have fixed costs that isn't going to be reduced
They also need to be specially handled because they fucking explode

This is what kills tanks or sinks ships, all the explosive/flammable material in them

>>33329955
For sure, it's like saying the physics of flight are well understood so the F22 or the A380 aren't that impressive.

>>33329051
BUMPO what a time to live
>SHALL NOT BE INFRINGED