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[Wired] Video: Navy Fires Off Its New Weaponized Railgun - Page 9

post #81 of 94
Quote:
Originally Posted by SectorNine50 View Post

What's the benefit of a railgun over current cannons?

A lot farther range and cost would be much less since there is no longer a need for an explosive warhead, its kinetic energy only
post #82 of 94
Quote:
Originally Posted by GTRagnarok View Post

Bad news for Decepticons.

laugher.gif
post #83 of 94
Safer than keeping powder on board for sure.
This gun is crazy powerful.
    
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post #84 of 94
The la le loo lee low?!?!?!
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post #85 of 94
Quote:
Originally Posted by Arimis5226 View Post

That's the coolest thing I've seen all year! Up next, Electromagnetic shields to defend against electromagnetic rounds. GO SPEND MY TAX DOLLARS! thumb.gif

you do know what the word "electromagnetic" means in science right? that rail gun is no more "electromagnetic" than your hand gun
post #86 of 94
Quote:
Originally Posted by Agent999 View Post

you do know what the word "electromagnetic" means in science right? that rail gun is no more "electromagnetic" than your hand gun

Technically, the rail gun's force is generated solely by the creation of an electromagnetic field. And if the bullet is affected by an electromagnetic field (which, by definition, it would have to be - you can't shoot slugs of plaster through a rail gun), ...etc etc etc.

Am I way off base on this one?
 
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post #87 of 94
Quote:
Originally Posted by pfunkmort View Post

Technically, the rail gun's force is generated solely by the creation of an electromagnetic field. And if the bullet is affected by an electromagnetic field (which, by definition, it would have to be - you can't shoot slugs of plaster through a rail gun), ...etc etc etc.
Am I way off base on this one?

Not much tongue.gif

Although the material in railguns doesn't need to be ferromagnetic (as opposed to coilguns), since the projectile is ejected the same way a Jacob's Ladder works. It only needs to be conductive.

Either way, you could use a conductive carrier that then ejects a ceramic slug, p.ex. Although you'd lose a lot of the already low efficiency.

I don't know about railguns this big, but 4KJ electric energy models have around a 4%. Efficiency goes up as power does, so around 10MJ efficiency should be rather high.
   
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post #88 of 94
My thoughts:

Tony Stark could have built that in a cave.

maybe this technology will be reduced in size, leading up to disc launchers from Tribes, or the machine guns from Earthsiege

now that the footage is for public viewing, terrorism now has another idea up their sleeves.

further implementation may include submarines, so then subs can strike super fast before the enemy subs dodge/dive away. seems like the rounds would go faster, anyways, and have a lower profile during movement.
Edited by rgrwng - 3/1/12 at 11:54am
post #89 of 94
Quote:
Originally Posted by rgrwng View Post

My thoughts:
Tony Stark could have built that in a cave.
maybe this technology will be reduced in size, leading up to disc launchers from Tribes, or the machine guns from Earthsiege
now that the footage is for public viewing, terrorism now has another idea up their sleeves.
further implementation may include submarines, so then subs can strike super fast before the enemy subs dodge/dive away. seems like the rounds would go faster, anyways, and have a lower profile during movement.

Only issue with this is, after a certain speed projectiles tend to break up in water, or at least based on what I've seen on Myth Busters (lol, I know). There is a lot of resistance down there.

I suppose there is probably a way around it, though.
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post #90 of 94
Yall might be interested to know this. We've had rail guns in the DOD for at least 20 years. this is the first time the Navy has officially mentioned they were testing them. they've been testing and using them for a LONG LONG LONG time.
 
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Overclock.net › Forums › Industry News › Technology and Science News › [Wired] Video: Navy Fires Off Its New Weaponized Railgun