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Navy Gets 8-Megajoule Rail Gun Working

prototypo writes "The Free Lance-Star newspaper is reporting that the Navy Surface Warfare Center in Dahlgren, Virginia has successfully demonstrated an 8-megajoule electromagnetic rail gun. A 32-megajoule version is due to be tested in June. A 64-megajoule version is anticipated to extend the range of naval gunfire (currently about 15 nautical miles for a 5-inch naval gun) to more than 200 nautical miles by 2020. The projectiles are small, but go so fast that have enough kinetic punch to replace a Tomahawk missile at a fraction of the cost. In the final version, they will apex at 95 miles altitude, well into space. These systems were initially part of Reagan's SDI program ("Star Wars"). An interesting tidbit in the article is that the rail gun is only expected to fire ten times or less per day, presumably because of the amount of electricity needed. I guess we now need a warp core to power them."

13 of 650 comments (clear)

  1. Where can I get one? by Anonymous Coward · · Score: 5, Funny

    I'm a member of the NRA, I didn't see this in the last catalog.

  2. Power Sources by nick_davison · · Score: 5, Funny

    An interesting tidbit in the article is that the rail gun is only expected to fire ten times or less per day, presumably because of the amount of electricity needed.

    If only we knew when lightning was due to strike some sort of a clock tower? Surely, then, we could harness the power needed.

    If that doesn't work, perhaps some new technology involving trash?

  3. sooo... by Anonymous Coward · · Score: 5, Funny

    by June they'll get the quad-damage powerup working?

  4. Re:I don't see them replacing crusie missles by ackthpt · · Score: 5, Funny

    if you can only fire 10 per day.

    I'd be very careful accounting for winds over a distance of 200 miles, particularly where chinese embassies are located. Must be a hell of a job to be spotter for this kind of weapon.

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  5. Not sure about this by thewils · · Score: 5, Funny

    It will allow the US Navy to miss targets from much further away.

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  6. Admiral Gates by Anonymous Coward · · Score: 5, Funny

    A 32-megajoule version is due to be tested in June. A 64-megajoule version is anticipated to extend the range of naval gunfire (currently about 15 nautical miles for a 5-inch naval gun) to more than 200 nautical miles by 2020.

    Nobody will ever need more than a 64 Megajoules rail gun.

  7. Forget Replacing Cruise Missiles... by Wandering+Wombat · · Score: 5, Funny
    ... these would almost replace Navies.


    Come on, if you could fire a projectile 200 miles, you could just mount these on coastlines, serviced by ground-based power plants. True, it wouldn't replace navies ENTIRELY, but it would suddenly become extremely UN-economical to have one with even the slightest capability to get near a shoreline. Pushing back aircraft carriers 200 miles would severely reduce the flight time of the planes, which now have to fly a lot farther just to get to the coastline, let alone targets inside countries.

    On the plus side, land-locked countries can now hunt whales for food. :)

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  8. Re: 95 miles altitude is space..Way Cool by Anonymous Coward · · Score: 5, Funny

    Parent recap:

    1. *some idea*
    2. "use robots with ion drives for that stuff"
    3. profit!

  9. Re: 95 miles altitude is space..Way Cool by javamann · · Score: 4, Funny

    'High School Math', mmmm let's see, if Billy has a quarter ounce of pot and six people in his van how many joints can he make before they drive to Mc Donalds for munchies?

  10. Re: 95 miles altitude is space..Way Cool by p3d0 · · Score: 5, Funny

    Yes, as soon as the moon moves to within 95 miles altitude.

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  11. Re: 95 miles altitude is space..Way Cool by bullshit+detector · · Score: 5, Funny

    so a shot of 100 tons of titanium a day could well make a moon mining facility profitable
    Even more profitable would be to make Earth pay you NOT to lob 100 tons of titanium at them per day.

    TANSTAAFL

  12. Piece of cake. by raehl · · Score: 5, Funny

    Use the rail gun to launch a big, heavy projectile into orbit.

    Attach projectile to giant bungee cord.

    Attach giant bungee cord to object you want in orbit.

    Give object giant scissors.

    Expanding on this, you could tie one object with several rubber bands to several projectiles.

  13. Re: 95 miles altitude is space..Way Cool by danlock4 · · Score: 4, Funny
    Why do navel ships have an abundance of electricity? I can come up with some guesses, but it's just hand waving.
    Navel ships require an umbilical of some type; electricity is often provided through the umbilical.

    ;-)
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