Record Breaking Rail Gun Test: 5,640 mph

[wbarnhill]

http://www.popularmechanics.com/technology/military_law/4231461.html?nav=RSS20

3 million amps. Who's bringing the batteries?

And videos of a projectile screaming along at 5,640 mph:

http://gizmodo.com/351467/navy-rail-gun-test-destroys-everything-it-touches-at-5640-mph

http://www.navytimes.com/news/2008/01/navy_railgun_test_080129w/

 

[KennyFlys]

What voltage? Could it result in 1.21 gigawatts?

Inquiring minds want to know!

 

[Unbeliever]

Well, a joule is 1 watt/s, and if all that 32 Megajoules were discharged in 1/100th of a second, that would be 3.2 Gigawatts.

1KWh is 3.6 megajoule.

--Carlos V.

 

[Chairboy]

All we need now is to mount it to a ship that can do 76.5 knots.

 

[fgcason]

3 million amps. Who's bringing the batteries?

Assuming they don't melt into slag when the go button is pushed, how many NiMh AA batteries is that and how long will it take to recharge them (4 at a time) after each shot?
What is the range before the bullet vaporizes?