“We were launching hypersonic bricks at Mach 5, Mach 6”

Here’s an exclusive Defense Tech video giving you an update on General Atomics’ high-speed railgun project. Last summer, General Atomics and Boeing tested a high-speed sabot round to replace the “hypersonic bricks” (which tended to tumble out of control) that the company had been firing from the gun, says General Atomics’ Tom Hurn. The sabot round went seven kilometers downrange after punching through a 1/8-inch thick steel plate. General Atomics officials estimate that they could install the weapon on a DDG-51 class destroyer by the end of the decade, according to Hurn.

27 Comments on "“We were launching hypersonic bricks at Mach 5, Mach 6”"

  1. Make it smaller and lighter, and put it on an Abrams…

  2. Can a DDG-51 even power this thing? Wasn't the DDG-1000 gonna replace the DDG-51 because the DDG-1000 would have the spare power for lasers and railguns?

  3. Alright lets see what this thing can do to an outboard engine, put it side by side with the laser weapon…

  4. Not really that impressive compared to current KE weapons. The M829A2 Penetrator fired from the M1 does 1680m/s, or the General Dynamics KEW-A1 (APFSDS-T), does 1740m/s.

    Except for the increased ammo capacity, and safety, rail guns don't make much sense as they stand now. Shrink the system, and double the KE, and maybe it makes it justifiable.

  5. Beautiful! Would be great if they could make it fire like a machine gun: Multiple rounds at a time on targets that move at high speed at least 70 km downrange.

  6. By the end of the decade they might have a prototype that they can aim and fire for effect accurately, but I doubt that they'll have anything mount it on at that point, the power consumption is just enormous and they really need to shrink those capacitors down to size.

  7. I have a question about the ammunition. When the projectile hits its inteded target does it explode or just go through it?

  8. hypersonic artillery might compete with rockets for range in ground combat…

  9. Blorch Headblownov | April 14, 2011 at 4:09 pm | Reply

    Even if you can ignore the power issues, good luck on keeping it combat ready. The electrical and structural launch components are going to oxidize and lose all ductility after a few cycles.

  10. How about one of these and a defensive laser with some kind of retractable/shroud, on a nuclear sub? Plenty of electricity and how fun would it be to surface 100 miles off a coast, fire off a few minutes of hypersonic rounds at a target area? Incoming anti-ship missiles? Blast em with the laser or just submerge? Hmmmm, decisions decisions……

  11. Rate of Fire?

  12. In principle, what the interim future may bring about is a launch system coupled to a gliding mechanism: which means larger rounds that would be capable of performing glide missions. Fire the round at high trajectory, deploy wings, glide and guide to target, versus simply opting for ballistic trajectories.

    However, using 5" guns for these kinds of things wouldn't work out…

  13. “We were launching hypersonic bricks at Mach 5, Mach 6″

    Mexican food does that to me too.

  14. Scaled up has anyone thought about pointing it straight up and putting things in to space? Maybe the g-force would scrap that idea?

  15. There are technical difficulties in making the projectile anything other than a dumb round. The EM pulse running through the gun would play havoc with electronics and maybe a problem with explosives.

    Of course, if you have a 5kg round doing Mach 6, the KE is going to obliterate pretty much anything it hits.

  16. EMP's efficacy drops when electronics are offline. They need only be active after the launching stage, after all.

  17. Too bad they got rid of the nuclear powered Cruisers. Those would be a perfect test platform for this puppy. Plenty of power.

  18. Subs already launch tomahawks, which are conceptually similar to a UAV just with a warhead.

  19. This brightcove crap doesn't work. Grow up and put it on youtube.

  20. Not trying to belittle the weapon, but 1/8" of steel isn't much. I've no doubt it is powerful, but they might have used 1" or more as a more worthy obstacle.

  21. What video? I can't see crap, even after enabling all javascript. Win7 x64, Firefox Nightly x86…

  22. Bill in Tennessee | April 20, 2011 at 1:06 pm | Reply

    Looking for a platform to mount it on, eh? How about my RAV-4? I'll drive to your proving grounds this weekend.

  23. They’ve had this for years. It’s old news. When they say we’ll have it in 10 years that’s saying we’ll tell you “we’ve already had it for years” in ten year. I’ve seen one made in someones back yard that will fire ball bearing fast enough to light a hay bail on fire. He use a labtop to turn magnits on one after another pulling the balls. Not the same way a tipical rail gun works but neat just the same. You just drop a hand full of bearing in and rata tat tat great balls of fire! If he can, DARPA can.

  24. Better start installing solar panels then.

  25. 32 MJ (sufficient to support a 110 nmi mission) with muzzle velocities of 2.5 km/sec.

  26. Looks like the Stars Wars battle cruiser main guns….

    Going further….

    If made big enough, could be use against doomsday meteors…

    If made small enough, will replace handguns, rifles.. hypersonic bullets can punch through anything… snipers can shoot from 10 miles away with shock fronts clearing away the wind (calculations) and aims straight as laser. If smaller still – laser bullets maybe? Power to push then power to pull also- powerful lasers made to shape – light saber? A handgun that could take out a tank? Where there's offense, there's defense – would use the push away force around an object to protect against incoming threats – force fields…metal and non-metal rounds to counter….

    The start of anti-gravity – this tech small and controlled and maybe with maglev tech – no tyres needed – bad news for tyre companies

    Star Wars tech for real…

  27. Donzi’s sort of thought? So it is deeper, isn’t it? I don’t boat gear
    know, yes. In the Kibbutzim in order to offer. You can certainly change your lifestyle and bring change
    that needs our help Chief. And all that dust swirling around the water, boat gear and he also was completely insane.

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