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[HackaDay] A full-auto Gauss gun probably won’t hurt much - Page 7

post #61 of 69
Give it some time for battery tech to get better. I'm pretty sure a deadly version would be possible in the next 20-30 years.
post #62 of 69
I have an air gun that fires at a higher velocity than this. rolleyes.gif
post #63 of 69
Quote:
Originally Posted by Art Vanelay View Post

I have an air gun that fires at a higher velocity than this. rolleyes.gif

Your gun's projectiles probably don't even weight a tenth of this ones, either.
   
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post #64 of 69
Quote:
Originally Posted by EniGma1987 View Post

Doubtful, at least for quite some time. Lot of time and funding went into the BAE system that is being integrated into the new class of US Navy destroyer class ships. While Im sure someone could whip one up and scale it pretty large and all, it has to be incredibly reliable and have redundancy upon redundancy with years of testing and certification before such a device would be used in a military design. It isnt really as simple as building something and bolting it to a warship, plane, or other such vehicle.

That last part makes me hope Somalian and other pirates don't mess around with this kind of thing...last thing we need is them making even a single shot per outing weapon with that kind of firepower.
     
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post #65 of 69
Quote:
Originally Posted by Rookie1337 View Post

That last part makes me hope Somalian and other pirates don't mess around with this kind of thing...last thing we need is them making even a single shot per outing weapon with that kind of firepower.

Thats a good point. All that redundancy stuff for 1st world military stuff, but random people who want to blow stuff up could build one that lasts even just one or two shots and still do a lot of damage.
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post #66 of 69

it definitely is dangerous, maybe does nothing when you have a jacket but what about the face or your hands. Surely can do hurt.

post #67 of 69
Quote:
Originally Posted by Artikbot View Post

Your gun's projectiles probably don't even weight a tenth of this ones, either.
Airgun rounds going at near 500 fps (due to Canadian regulation) will still hurt a hell of a lot more.
post #68 of 69
Quote:
Originally Posted by Maelthras View Post

Source
Alright this is pretty insane, but I calced the wattage and he's working with 18k to get this to work.
How did you get 18k?

To calculate watts, it's a pretty basic calculation: volts x amperes = watts

So in the case of this gun, which uses 2x 22v@3600mAh battery pack, it's:

Single battery pack:
22v x 3.6A = 79.2W

For the 2x battery packs used:
2x 79.2W = 158.4W

that's 158.4W, or 0.158KW, nowhere near 18KW...
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post #69 of 69
Quote:
Originally Posted by un-nefer View Post

How did you get 18k?

To calculate watts, it's a pretty basic calculation: volts x amperes = watts

So in the case of this gun, which uses 2x 22v@3600mAh battery pack, it's:

Single battery pack:
22v x 3.6A = 79.2W

For the 2x battery packs used:
2x 79.2W = 158.4W

that's 158.4W, or 0.158KW, nowhere near 18KW...

3.6A is the amp-hour rating of the pack rolleyes.gif , Not what he is pulling , The Coil gun is pulling around 190 Amps from the cells at 50 volts ( 12 Cells at 4.2 Volts ) , Isn't 18Kw worth but 9.5Kw is still a lot of power in a pulse tongue.gif

If he pulled 300 Amps from the cells @ 50 volts , that's 15Kw , But as he said someplace on his side due to internal battery resistance current from the cells was limited to around 190 amps ... so 9.5 Kw of power .
Edited by TwirlyWhirly555 - 8/28/13 at 8:58am
    
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