Navy Railgun Unveiled

 

The U.S. Navy has publicly unveiled its long awaited railgun at the Future Force Science and Technology Expo in Washington. Talked about since the days of Reagan’s Star Wars program, the weapon uses electromagnetic pulses to generate a magnetic force between two long rails.

Whereas a Hellfire missile travels at about Mach 1, the railgun projectile flies at Mach 7. This speed is so fast that the “bullet” does not need gunpowder or explosives; the impact alone will obliterate the target. It also travels a long way. Instead of 13-mile range of a 5-inch naval gun, the railgun can hit targets 110 miles away.

Reuters has a video of the superweapon in action.

http://youtu.be/o4ZqfEJTGzw

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  1. Joe Malchow Member
    Joe Malchow
    @JoeMalchow

    AIG:

    Short answer: GPS. Rounds can be made maneuverable, and guided by GPS.

    This is already done for ground-based artillery rounds as well as naval rounds now in development.

    Thanks, AIG! I had no idea. My reax to the article was: cool, but how do you guide artillery type rounds? I did not idea that we could do that. Very impressive!

    • #31
  2. Jon Gabriel, Ed. Contributor
    Jon Gabriel, Ed.
    @jon

    Douglas:

    Sabrdance:OK, so I like rail guns as much as the next guy, but how on earth do you hit something at 127 miles? At that range you are putting the projectile half-way into orbit.

    The hyper-expensive Zumwalts are the only ships that will be capable of carrying them anyway. At around $4 billion apiece… for a frickin’ destroyer …. we can’t afford more than the 3 we have budgeted. And retrofitting the Burke Class would cost too much and displace other needed equipment.

    BTW, I’m more convinced every day that the Zumwalt Class is either someone’s idea of a joke in the Navy Dept, or someone at flag rank is actively whizzing on ole’ Elmo’s grave. The guy who advocated the cheap + many strategy getting a Destroyer named after him that cost as much as a Nimitz carrier cost in the 90′s…

    The failed Zumwalt Class couldn’t be named after a more apt CNO.

    • #32
  3. AIG Inactive
    AIG
    @AIG

    Chris Campion:I’m less concerned about equipment, however, than I am about having a president who’s unwilling or unable to understand the value of the military in ways other than as bargaining chips to be given away in return for nothing.

    Oh jeeze! can’t go 3 posts without bringing Obama into something, and blaming him for all imagined problems.

    Bush derangement syndrome was piece of cake compared to this.

    • #33
  4. AIG Inactive
    AIG
    @AIG

    Giantkiller:Actually, the rounds fired by a railgun are solid – no GPS. The targeting is via sophisticated ballistic programs.

    Power density is high, so it required the engineering plant of the Zumwalt’s to mount the railgun. The Zumwalt – especially the electric plant – was Mike Mullen’s baby. It is too expensive, but does work as a great technology demonstrator and experimental platform.

    The railgun does some interesting things and has great potential. It does not do a lot of other things, however – active guidance missions are not something it can handle. In combination with sea-based laser systems and the next generation missiles, it will provide a new margin of weapons superiority – so it’s a good thing.

    No matter how sophisticated your ballistic computers are going to be…if you’re firing a round with no explosives in it, then you better get a direct hit.

    Something which is going to be next to impossible impossible at such ranges, against any target that’s smaller than a city block. Not terribly useful, if you already have conventional naval artillery guns which are approaching such ranges, with conventional GPS guided rounds.

    Of course, the prototype gun of today is only firing solid rounds. But that’s for testing purposes.

    Certainly for this to be a viable weapon it will have to be guided.

    And, most likely the primary purpose of these guns will not be land attack. It will be air defense or anti-ship.

    Johnny Dubya:It would take less than 90 seconds for a projectile traveling at Mach 7 to reach a target 127 miles away. This assumes no deceleration due to air friction, so the actual time to target would be slightly longer. Still, pretty darn fast.

    It would probably take over 5 minutes. Mach 7 may be it’s muzzle velocity, but obviously it will slow down over time.

    • #34
  5. user_199279 Coolidge
    user_199279
    @ChrisCampion

    AIG:

    Chris Campion:I’m less concerned about equipment, however, than I am about having a president who’s unwilling or unable to understand the value of the military in ways other than as bargaining chips to be given away in return for nothing.

    Oh jeeze! can’t go 3 posts without bringing Obama into something, and blaming him for all imagined problems.

    Bush derangement syndrome was piece of cake compared to this.

    Well, we are talking about the Navy, and weapons procurement, and the president has trimmed the Navy down to nothing.

    So no, it’s not like Bush derangement syndrome, at all.  If we were talking fir trees, and I brought Big Boy Pants Barry into the conversation, then you’d be onto something.  Something well-conceived and critical to the issue under discussion.

    • #35
  6. Giantkiller Member
    Giantkiller
    @Giantkiller

    AIG – the railgun has long been pursued as a land attack weapon – it is not conceived of and so far as is documented not intended to be an anti-air weapon.  The projectiles do not carry electronics now, and are not intended to in the future.

    The programs which target the weapon have a very credible CEP, as do current naval guns.  The installed version of the rail gun, when it is finally engineered into a ship-based mounting, combined with networked sensors and the targeting program, should considerably improve the accuracy of the solution.

    Electronics do not survive the g-force and the magnetic forces of the rail gun launch.

    Some rocket-assisted projectiles have been produced which use GPS or semi-active targeting systems, and they have precision weapons quality accuracy, but the accelerations involved are significantly less and the rounds much, much more expensive.  The only expensive part of the rail gun projectile is the discarding sabot.

    • #36
  7. AIG Inactive
    AIG
    @AIG

    Chris Campion:

    Well, we are talking about the Navy, and weapons procurement, and the president has trimmed the Navy down to nothing.

    WHAAA!!

    Why did I never hear about this news? Oh, maybe because its the…opposite…of reality?

    So no, it’s not like Bush derangement syndrome, at all. 

    It’s obviously much worst than that, if you think the USN has been trimmed to “nothing”, when in reality the USN has the highest numerical and technological superiority it has ever had…ever.

    • #37
  8. Klaatu Inactive
    Klaatu
    @Klaatu

    It’s obviously much worst than that, if you think the USN has been trimmed to “nothing”, when in reality the USN has the highest numerical and technological superiority it has ever had…ever.

    Whether or not the Navy has been cut down to nothing is not a function of the comparative advantages it may have against other varies but whether or not it has the means required to complete its assigned missions.

    • #38
  9. AIG Inactive
    AIG
    @AIG

    Giantkiller:AIG – the railgun has long been pursued as a land attack weapon – it is not conceived of and so far as is documented not intended to be an anti-air weapon. The projectiles do not carry electronics now, and are not intended to in the future.

    Oh sure it is. Anti-ballistic missile defense for one, as well as anti-ship missile defense. Those are likely to be the main uses of this weapon, because speed is critical for such missions. For land attack, we already have conventional guns which can already achieve close to similar ranges, with far less effort.

    The main advantage of this system is speed, and ability to have a much higher rate of fire. That’s what you need when you’re trying to engage hypersonic targets with very little response time.

    The programs which target the weapon have a very credible CEP, as do current naval guns.

    A GPS guided round from a naval 127mm gun will have a CEP of about 10-20m.

    That’s a guided round, with a max range of about 13nm.

    An unguided round at 120nm, has no chance of hitting anything.

    Electronics do not survive the g-force and the magnetic forces of the rail gun launch.

    Some rocket-assisted projectiles have been produced which use GPS or semi-active targeting systems, and they have precision weapons quality accuracy, but the accelerations involved are significantly less and the rounds much, much more expensive.  The only expensive part of the rail gun projectile is the discarding sabot.

    Well, there in lies the problem with the rail gun. For it to be an effective weapon, it will need a guided round.

    Of course, this is what the USN is doing right now. Trying to figure out how to develop electronics that will survive 40,000g acceleration.

    • #39
  10. AIG Inactive
    AIG
    @AIG

    Klaatu:Whether or not the Navy has been cut down to nothing is not a function of the comparative advantages it may have against other varies but whether or not it has the means required to complete its assigned missions.

    The USN is…in absolute terms…far larger and better equipped that it has been.

    No two ways about it.

    People who say things like “well we used to have 600 ships! and now we only have 400!” don’t seem to think that there’s differences between types of “ships”. We had 600 ships, of which 100 were frigates build in the 1960s. And now we have guided missile destroyers which have more firepower than half the USN did 30 years ago.

    It doesn’t have the means to complete its assigned mission?

    http://en.wikipedia.org/wiki/List_of_currently_active_United_States_military_watercraft

    • #40
  11. Klaatu Inactive
    Klaatu
    @Klaatu

    From an article dated a year and a half ago,

    The US Navy’s top civilian warned Wednesday that another year of sequestration cuts will put the fleet and Marine Corps within a year of going “hollow” — with commands sent downrange without the manpower and equipment for missions they’ll be tasked to conduct.

    • #41
  12. AIG Inactive
    AIG
    @AIG

    Klaatu:From an article dated a year and a half ago,

    The US Navy’s top civilian warned Wednesday that another year of sequestration cuts will put the fleet and Marine Corps within a year of going “hollow” — with commands sent downrange without the manpower and equipment for missions they’ll be tasked to conduct.

    Oh no!! A military commander saying they need more money, or else!

    Now, I’m sure all of you have access to the internet, and all of you know how to Google simple things like, lists and types and numbers and details about USN equipment and manpower and expenditures etc.

    It takes 10 minutes.

    So I’m sure you can figure it out.

    Since 2009 the USN has taken 2 aircraft carriers (with a third under construction), 9 amphibious assault ships (with 1 more under construction), 10 destroyers (with 8 more under construction), 4 LCS (with 6 more under construction), and 6 nuclear subs (with 4 more under construction).

    What has been build in the last 5 years alone constitutes the single largest and most powerful navy on the face of the earth. And of course, that’s only a small % of the total number of USN assets available.

    • #42
  13. Klaatu Inactive
    Klaatu
    @Klaatu

    What has been build in the last 5 years alone constitutes the single largest and most powerful navy on the face of the earth. And of course, that’s only a small % of the total number of USN assets available.

    Again, unless you put the numbers in the context of the mission, they are meaningless. Can the Navy meet its obligations? The man hired to see it can, said no. Forgive me if I take the word of someone who understands the mission over someone who obviously does not.

    • #43
  14. AIG Inactive
    AIG
    @AIG

    Klaatu:Again, unless you put the numbers in the context of the mission, they are meaningless.Can the Navy meet its obligations?The man hired to see it can, said no.Forgive me if I take the word of someone who understands the mission over someone who obviously does not.

    Can the navy meet its obligations? Is that a serious question?

    The sequester that the GOP was pushing for?

    Put the numbers in context? In what context is the claim that is repeated day and night in “conservative” circles that the Navy is “hollowed down to nothing”, put?

    • #44
  15. Klaatu Inactive
    Klaatu
    @Klaatu

    Can the navy meet its obligations? Is that a serious question?

    Yes.

    The sequester that the GOP was pushing for?

    The sequester the President proposed.

    Put the numbers in context? In what context is the claim that is repeated day and night in “conservative” circles that the Navy is “hollowed down to nothing”, put?

    In the context of the missions we require the Navy to accomplish.

    • #45
  16. AIG Inactive
    AIG
    @AIG

    Klaatu:Can the navy meet its obligations? Is that a serious question?

    Yes.

    The sequester that the GOP was pushing for?

    The sequester the President proposed.

    Put the numbers in context? In what context is the claim that is repeated day and night in “conservative” circles that the Navy is “hollowed down to nothing”, put?

    In the context of the missions we require the Navy to accomplish.

    Strangely, the Heritage foundation when it writes total nonsense about the “number of ships” isn’t required to provide those numbers in context, but I am .

    Hmm.

    I’m not sure what “context” you want me to put it in, since I gave the breakdown by the type of ships. You can figure out yourself the “context” of an aircraft carrier, or an amphibious assault ship.

    This was the same Navy BTW, that wasted billions on the LCS and on the Zumwalt class, putting on the back-burner other programs like the Flight II and III Burkes…that’s now saying “Hey guys! Our bad! We’re going to cancel those programs and want to go back to what we had before”

    So you’re saying the USN, or the US military in general, should not be placed under budgetary constraints?

    That doesn’t sound like a good idea to me.

    Either way…saying we’re going to have to take it easy for a couple of years till we get rid of these failed programs…is about the furthest away as one can get from claiming that the USN has been hollowed down to nothing.

    PS: Now, if you want to talk about what…really…impacted the US military’s ability to be far better than it is, maybe you should take a look at the trillions of dollars thrown at the war in Iraq. Saying now that “hey guys, we’re running out of money” after spending trillions in Iraq, is a bit…well…disingenuous.

    Of course the military should be under budgetary constraints. Just as everyone else.

    • #46
  17. Douglas Inactive
    Douglas
    @Douglas

    Klaatu:Can the navy meet its obligations? Is that a serious question?

    Yes.

    The sequester that the GOP was pushing for?

    The sequester the President proposed.

    Put the numbers in context? In what context is the claim that is repeated day and night in “conservative” circles that the Navy is “hollowed down to nothing”, put?

    In the context of the missions we require the Navy to accomplish.

    I’m a fan of the sequester. It’s proven to be the only way to keep spending down, like getting one of those stomach stapling surgeries when you just can’t stay away from the buffet.

    • #47
  18. Klaatu Inactive
    Klaatu
    @Klaatu

    Strangely, the Heritage foundation when it writes total nonsense about the “number of ships” isn’t required to provide those numbers in context, but I am .

    Has anyone referenced a Heritage article or is this just a straw man you have decided to erect?

    I’m not sure what “context” you want me to put it in, since I gave the breakdown by the type of ships. You can figure out yourself the “context” of an aircraft carrier, or an amphibious assault ship.

    As I have stated repeatedly, the context of the missions the Navy is required to accomplish.

    So you’re saying the USN, or the US military in general, should not be placed under budgetary constraints?

    I don’t recall saying, or even suggesting that. Another straw man?

    Either way…saying we’re going to have to take it easy for a couple of years till we get rid of these failed programs…is about the furthest away as one can get from claiming that the USN has been hollowed down to nothing.

    Saying the Navy will be unable to meet its mission requirements is what is meant when the Navy is said to have been hollowed out. That is exactly what the Secretary of the Navy said.

    • #48
  19. Klaatu Inactive
    Klaatu
    @Klaatu

    PS: Now, if you want to talk about what…really…impacted the US military’s ability to be far better than it is, maybe you should take a look at the trillions of dollars thrown at the war in Iraq. Saying now that “hey guys, we’re running out of money” after spending trillions in Iraq, is a bit…well…disingenuous.

    There is nothing disingenuous about a fighting force needing to be rearmed and re-equipped after engaging in sustained combat. In fact, it is precisely what should be expected to happen.

    Also, DOD expenditures for the war in Iraq totaled less than $850 billion between 2001-2014. Not sure where you are coming up with trillions.

    • #49
  20. No Caesar Thatcher
    No Caesar
    @NoCaesar

    This is cool.  I love American military know-how.  Think back to the new break-throughs in the 80s and 90s that are now SOE.  How long before this comes down the cost curve as the sunk R&D costs are paid for?

    • #50
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