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[Wired] Video: Navy Fires Off Its New Weaponized Railgun - Page 5

post #41 of 94
Quote:
Originally Posted by Ransom. View Post

I see NO pratcicality in real warfare for this thing. Why not just fire an artillery shell that actually explodes on impact? It's such a waste

Hyper sonic kinetic impacts do far more damage then explosives of a similar size (see sabot round). These rounds don't need explosives since they are solid pieces of dense material (like tungsten) that travel around mach 10 speeds. The point is that you can accurately hit targets from vast distances and do incredible damage. How is it not practical to engage the enemy effectively from distances they can't match?
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post #42 of 94
Quote:
Originally Posted by Just a nickname View Post

From what I understand, they use the electricity to accelerate the projectile. Same technology used in particle accelerator in fact. But in those particle accelerator, you don't use 23 pounds projectile. Jesus, 33 megajoule to fire a single shot, this only have the potential to... waste a lot of energy.

If they can just get cold fusion to work, that wont be a problem tongue.gif
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post #43 of 94
Reminds me of the railgun from Metal Gear Solid series. So this is close to being a reality and the potential is there.
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post #44 of 94
Quote:
Originally Posted by GingerJohn View Post

Yes, but you don't have to deal with any chemical variations in the propellant. Slight variations in humidity, age, chemical composition, density grain size etc can change the burn rate and therefore change the path of the projectile
Generating and storing energy for the breif period before firing is a lot safer than carting round a lot of high explosive propellant all the time. If there is a fire aboard it would be easy to quickly dissipate the electricity, you can't just make a bunch of conventional ammunition dissapear.
If either this or a conventional main gun "blow" there isn't going to be much of you left to pick up anyway, so no change there.
No, it is meant to go on a ship, hence the Navy's interest in it. Nuclear powered ships already have some pretty beefy turbogenerators on board, wouldn't take much more space to upgrade and uprate them a bit (I used to deisgn Naval TGs and main turbines). The capacitors will take up space, granted, but I bet it won't take all that much space once it is "weaponized".
If they can reduce the size of the magazine then they can pack more other stuff in. Or they can keep the magazine the same size and pack more rounds in.
That was just a thought along the lines of you can jam radar, but it is difficult to disguise the huge IR spike from firing a ship's main gun.
Edit:
If you got that image from Wikipedia it is worth reading on a bit:
Just because you are using electromagnetic force to accellerate something does not change the fact that you need to have a reaction force. The reaction force will be exerted on the rails, which in turn are attached to the barrel.

Alright, couldn't find it but that's probable the force is indirectly exerced on the rail. Although I would like to see the quote.

I won't make a debate of it. I am quite surprised by your reaction. Let's just say this tech sounds cool.
I think it is a waste or resources and energy.
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post #45 of 94
Quote:
Originally Posted by adridu59 View Post

Gauss gun. thumb.gif

Gauss Cannon thumb.gifthumb.gif
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post #46 of 94
Quote:
Originally Posted by Starbomba View Post

When i read the title, only one image and sound came to my mind.
And the picture is to my left thumb.gif

+ 1, several years later, I can still hear that sound in my head.
    
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post #47 of 94
Quote:
Originally Posted by BinaryDemon View Post

Why is there recoil on the railgun? Is that just displaced air? Or some other effect like breaking the sound barrier in the barrel?

equal & opposite reaction from propelling the round.
    
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post #48 of 94
The "bullet" looks weird. What's the advantages of have this non-aerodynamic object? To be able to fire more things?
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post #49 of 94
Quote:
Originally Posted by van13330gg View Post

The "bullet" looks weird. What's the advantages of have this non-aerodynamic object? To be able to fire more things?

I believe they used that to slow it down..... so it wouldn't fly off miles away into somebody's house i guess. (Dunno for sure tough)
    
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post #50 of 94
Quote:
Originally Posted by van13330gg View Post

The "bullet" looks weird. What's the advantages of have this non-aerodynamic object? To be able to fire more things?

To slow it down so they don't have to use a 1 mile thick concrete wall to stop it probably. tongue.gif

Also it mimics the shape of Sabot rounds.
     
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