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Watch a Lockheed Martin Laser Destroy a Missile In Flight

An anonymous reader writes "As well as providing the equipment necessary to fire missiles, defense contractors also want to offer customers the ability to defend against them. Lockheed Martin is doing just that with its Area Defense Anti-Munitions (ADAM) system. ADAM is a high energy laser system mounted on a trailer allowing it to be transported around quickly to help defend high-value targets. It is still in prototype form, but basically uses a 10-kilowatt fiber laser which can be focused on to a moving target up to 2 kilometers away."

177 comments

  1. Did this one havce a GPS unit hidden in it? by GodfatherofSoul · · Score: 0

    n/t

    --
    I swear to God...I swear to God! That is NOT how you treat your human!
    1. Re:Did this one havce a GPS unit hidden in it? by tsadi · · Score: 1

      The final application doesn't need GPS units as sharks can find their way without GPS guidance.

    2. Re:Did this one havce a GPS unit hidden in it? by davester666 · · Score: 2

      Sharks have built-in GPS. You just need to purchase it's use "in-app".

      --
      Sleep your way to a whiter smile...date a dentist!
  2. Interesting by LocutusMIT · · Score: 5, Funny

    But can it be mounted on a shark?

    1. Re:Interesting by Anonymous Coward · · Score: 1

      Sure, as long as it's a trailer sized shark
      http://en.wikipedia.org/wiki/Whale_shark

    2. Re:Interesting by interkin3tic · · Score: 2

      I'd settle for a video of this thing destroying a shark which has been launched into the air.

    3. Re:Interesting by sethradio · · Score: 0

      Really, let me call PETA.

      --
      "Nationalism is an infantile sickness. It is the measles of the human race." -Albert Einstein
    4. Re:Interesting by oobayly · · Score: 1

      But they were the ones that donated the shark.

  3. Cool by SuricouRaven · · Score: 1

    Bet it costs a fortune, though.

    1. Re:Cool by K.+S.+Kyosuke · · Score: 3, Funny

      Bet it costs a fortune, though.

      Just ask some loan sharks with lasers...

      --
      Ezekiel 23:20
    2. Re:Cool by RobertNotBob · · Score: 5, Insightful
      Sure... but that was implicitly addressed when they discussed the cost of REPEATED use. So this is a Pay (a lot) ONCE, vs a missile (or other ammunition based) system which is Pay (less, but still serious coin) EVERY time you shoot.

      It's not so bad when you put it into context.

      --
      ___ I don't respond to Anonymous Cowards, and I Never Mod them UP.
    3. Re:Cool by Sulphur · · Score: 1

      Bet it costs a fortune, though.

      Just ask some loan sharks with lasers...

      Just loan them the shark long enough to fire a few shots.

    4. Re:Cool by Coolhand2120 · · Score: 1

      I'm sure it costs a lot less than the damage to persons and equipment that it protects.

    5. Re:Cool by pchan- · · Score: 1

      Cost is not a big issue. The big issue is power.

      A laser of this type is almost always a chemical laser because that is one of the best ways to portably produce that much energy in a hurry. The drawbacks of this are
      1) the laser reactant supply needs to be reloaded after every shot or few shots. This is time consuming.
      2) toxic chemical byproducts of the power-generating reaction. If you're defending a base in the middle of the desert, this may not be an issue. If you're defending land that you care about, like your home town, it is a big problem.

      If the laser is battery-powered instead then prepare to wait a long time between firings for it to charge. Even a nuclear reactor on an aircraft carrier doesn't deliver the kind of wattage this needs in a burst, there will need to be a charge-discharge system.

      Until the power problems are solved, don't expect to be seeing too many lasers shooting down missiles.

    6. Re:Cool by bane2571 · · Score: 1

      The per shot cost may be way lower but honestly, how many times are you actually going to fire this thing?

    7. Re:Cool by SuricouRaven · · Score: 1

      The article refers to a '10-kilowatt fiber laser.' That's means electrical, and probably continuous operation too. 10KW isn't a huge amount of power for something that size. You could run it off of an ordinary engine and generator, though I expect it uses batteries or ultracaps with a generator or external power hookup for charging to avoid keeping an engine spinning all the time.

    8. Re:Cool by jabuzz · · Score: 1

      If your are Israel, thousands of times.

  4. 2 kilometers isn't very far away. by Picass0 · · Score: 4, Insightful

    Considering this a defensive system 2 kilometers means the high velocity threat is nearly on top of what you want to protect. It's 'destruction' is still likely to rain down debris nearby.

    1. Re:2 kilometers isn't very far away. by CrimsonKnight13 · · Score: 3, Insightful

      Since it's a prototype, I'm sure progress will need to be made to extend the range & power of the laser. Otherwise, it'll only be a short-range solution.

      --
      Libera te ex Inferis!
    2. Re:2 kilometers isn't very far away. by tsadi · · Score: 3, Insightful

      The 2km limit is likely due to the heat lost due to the atmosphere.

    3. Re:2 kilometers isn't very far away. by gl4ss · · Score: 5, Insightful

      Considering this a defensive system 2 kilometers means the high velocity threat is nearly on top of what you want to protect. It's 'destruction' is still likely to rain down debris nearby.

      well.. most missiles aren't kinetic energy weapons.. few broken windows isn't as bad as a warhead exploding inside your building.

      --
      world was created 5 seconds before this post as it is.
    4. Re:2 kilometers isn't very far away. by westlake · · Score: 2

      It's 'destruction' is still likely to rain down debris nearby.

      Which would you prefer? Debris or an explosion?

    5. Re:2 kilometers isn't very far away. by Anonymous Coward · · Score: 5, Funny

      Why does everything always have to be a binary choice? I'd like debris and an explosion.

    6. Re:2 kilometers isn't very far away. by K.+S.+Kyosuke · · Score: 2

      Since you can deal with that using a proper wavelength, I'd go for thermal bloom problems instead.

      --
      Ezekiel 23:20
    7. Re:2 kilometers isn't very far away. by Anonymous Coward · · Score: 1

      (1) A small shower of hot debris is a hell of a lot better than a successful missile strike.
      (2) 2-km is further than you think. Most of the small rockets this is meant to protect against don't have a blast radius even *remotely* close to that distance. In most scenarios even the debris won't reach the target.
      (3) As another reply noted, the distance limit is probably due to laser heat loss in the atmosphere. That sort of implies that the closer the target gets, the faster the laser destroys it. I'm not sure how the two curves line up, but one can bet that even if tracking pickup is a little late, the distance at which the missile explodes is fairly consistent.

      The obvious way to get around this defense, of course, is not to use a fueled rocket with a warhead, but instead a kinetic projectile (i.e. a missile-sized tungsten slug). Heating that up won't really stop it (not to mention it would be moving too fast to track, most likely). However, the technology to fire such a weapon accurately, as well as the weight of the munitions, makes such a weapon far less practical for small insurgent groups and 3rd-world wannabe armies. Even the US probably doesn't have any easily-portable system to fire high-velocity kinetic missiles of significant mass.

    8. Re:2 kilometers isn't very far away. by Nutria · · Score: 1

      Even the US probably doesn't have any easily-portable system to fire high-velocity kinetic missiles of significant mass.

      They're called cannons; been around for centuries.

      For a decade, the US Navy has been developing rail guns to shoot *really* high speed projectiles. Progress has been slow, though.

      --
      "I don't know, therefore Aliens" Wafflebox1
    9. Re:2 kilometers isn't very far away. by im_thatoneguy · · Score: 1

      Small pieces of debris have a considerably lower terminal velocity than an aerodynamic missile. I'm sure some larger bits would still be deadly but probably wouldn't penetrate a building.

    10. Re: 2 kilometers isn't very far away. by Anonymous Coward · · Score: 0

      I don't know if absorption in the atmosphere is the real problem. I assume they use a wavelength that is not absorbed much. There are more serious challenges though. First, there is seeing, which is lensing in the atmosphere due to local temperature differences. Compensating for this requires adaptive optics (mirrors that can change their curvature locally). Another, simpler problem, is one of aperture. If you want to create a small focus at a large distance, you need lens/mirror with a large diameter. However, you must still be able to turn it quickly, so it should not be heavy. This is, however, a problem that can be fixed with more power, which is easily available.

    11. Re:2 kilometers isn't very far away. by Anonymous Coward · · Score: 0

      When firearms first came about, bows could out-range them easily.

    12. Re:2 kilometers isn't very far away. by Anonymous Coward · · Score: 0

      The only thing worse than splashing an enemy missile at 2km is the alternative.

    13. Re:2 kilometers isn't very far away. by jon3k · · Score: 1

      You're right I'd rather be hit with a missile.

    14. Re:2 kilometers isn't very far away. by gstoddart · · Score: 3, Insightful

      Which would you prefer? Debris or an explosion?

      Depends, how big is the debris and what's it made of, and how far away is the explosion?

      Big giants chunks of debris would be no fun, nor would it be if the missile had radioactive material and destroying it turned it into a dirty bomb.

      I'm more curious to know how much of this test was 'real', and how much relied on some of the tricks they've done in the past by essentially making it impossible for it to miss.

      It's not like they haven't stacked these tests in their favor in the past to the point that you'd need whoever might be shooting at you to schedule an appointment and tell you exactly where the missile is coming from. Which kind of defeats the purpose.

      --
      Lost at C:>. Found at C.
    15. Re:2 kilometers isn't very far away. by cfalcon · · Score: 4, Insightful

      "Big giants chunks of debris would be no fun, nor would it be if the missile had radioactive material and destroying it turned it into a dirty bomb."

      No, that would be the BEST CASE scenario.

      If the missile has radioactive material then:

      1)- It is already a dirty bomb. Destroying it minimizes the damage.
      2)- IT IS A NUKE. Destroying it saves likely a city.

      Neither of these are likely, but you'd rather 1000 dirty bombs than one fissile warhead.

    16. Re:2 kilometers isn't very far away. by Joce640k · · Score: 1

      Considering this a defensive system 2 kilometers means the high velocity threat is nearly on top of what you want to protect. It's 'destruction' is still likely to rain down debris nearby.

      https://en.wikipedia.org/wiki/Nirvana_fallacy

      --
      No sig today...
    17. Re:2 kilometers isn't very far away. by alexander_686 · · Score: 1

      Until rifles, a trained longbow men could out fire and out range firearms. (trained is the operating word here – some English bowmen’s left arm was 2 inches shorter than their right due to repeated compression of holding the bow.) (Out damage is questionable.)

    18. Re:2 kilometers isn't very far away. by Anonymous Coward · · Score: 0

      Or just due to the ability to focus over those distances. There are limits for how far away you can achieve a reasonable sized focus spot given how big your optics (at least until you get to PW powers and have beams that self-focus in the presence of air...) And for high power optics, the costs will go up quickly with larger optics and for other reasons you don't want to cut things too close to their limits.

    19. Re:2 kilometers isn't very far away. by Anonymous Coward · · Score: 0

      Totally agree - and don't anyone forget that a nuke that detonates is far, far, far "dirtier" in terms of residual health-impacting radiation / radioactive contaminants than a "dirty bomb". A nuke is not a "clean bomb" compared to a "dirty bomb" like a gallon of gasoline being burned in a Toyota Prius vs. being poured out in the road and lit.

    20. Re:2 kilometers isn't very far away. by Anonymous Coward · · Score: 0

      * Kinetic-only munitions do a lot less damage at modest velocities. I think that's why classic cannons aren't in use hardly at all anymore.
      * Ballistic munitions with explosive contents can do a lot of damage but could still fall prey to this laser defense system, if it can activate the explosives early.

    21. Re:2 kilometers isn't very far away. by K.+S.+Kyosuke · · Score: 1

      Or just due to the ability to focus over those distances

      Well, that's exactly the thing that thermal bloom screws up, isn't it?

      --
      Ezekiel 23:20
    22. Re:2 kilometers isn't very far away. by Anonymous Coward · · Score: 0

      Alternatively, I'd like to see what happens to missiles that fail. At $1 million dollars a pop, it's well worth knowing. Do they explode? Are they recyclable? Where do they end up? I'm sure most testing is done at sea, but Iron (Cheese) Dome is land based. Do the Palestinians get to collect free science projects when Israel's U.S. backed d'fence system fails to knock down one of those jihadist roman candles they direct toward God's chosen?

    23. Re:2 kilometers isn't very far away. by Anonymous Coward · · Score: 0

      Depending on the constraints they have in budget, optics size, and desired target focus size, it would be quite reasonable that their limits would be there if it was in a vacuum and not be due to interaction with the atmosphere in between. It depends on the exact wavelength they are using, but I've already seen reports disregarding thermal blooming effects for fiber based lasers systems up to 100 kW over a couple kilometer range (an example that shouldn't be behind a paywall). Additionally, thermal blooming can be compensated for by adjusting the phase delay across the beam profile. So for this 10 kW example, meant to be compact and mobile, it is probably more a limit on their optics than the atmospheric conditions short of rather crappy weather or if for some other reason they picked a not so good wavelength to work with.

    24. Re:2 kilometers isn't very far away. by Afty0r · · Score: 1

      Debris from 2km away seems preferable to a detonating warhead 5 metres away.

    25. Re:2 kilometers isn't very far away. by matfud · · Score: 1

      Longbows could out-range muskets. Early rifles could just about match longbows for range and accuracy. However the bows could be fired far faster than any muzzle loaded gun. The downside is that arrows are expensive to make and it takes a lot (I mean a really lot) of time to train an archer. Not so much someone to fire a musket.

      Strange but true.

    26. Re:2 kilometers isn't very far away. by Kanasta · · Score: 1

      Given that usually missles you want to destroy are aimed AT you and not flying OVERHEAD, esp when just 2km away, I wonder how useful this system is.
      Maybe we can ask our enemies to put them next to their launching pads?

  5. Hmm... I have a question. by Antony+T+Curtis · · Score: 5, Insightful

    How long before we start seeing missiles with highly polished chrome finish on the outside?

    --
    No sig. Move along - nothing to see here.
    1. Re:Hmm... I have a question. by Brandano · · Score: 4, Funny

      There's small battery powered ones already...

    2. Re:Hmm... I have a question. by LocutusMIT · · Score: 2

      That raises some interesting questions:

      Given the stresses of launch, how long would such a finish remain highly polished, or at least reflective enough to protect against a laser?

      Is the laser accurate enough to target the engine nozzles, which would very quickly lose any lustre they may have?

    3. Re:Hmm... I have a question. by westlake · · Score: 1

      How long before we start seeing missiles with highly polished chrome finish on the outside?

      How reflective is chrome (or any other coating) at the frequency of the laser? What are the chances the laser will simply "punch" or "torch" its way through the finish?

    4. Re:Hmm... I have a question. by Anonymous Coward · · Score: 0

      There are other ways to defeat this, too. Even the most basic evasive manuevering algorithms have proven amazingly effective at getting past other missile defense systems. It's hard enough to target something moving in a straight line, and the complexity of the problem rises nonlinearly as the target's course becomes more erratic.

        Then there's the method weapons contractors love -- firing more stuff into the air at once, to overload the missile defense systems. That might be easier or harder with this system than others, it depends on its firing rate.

    5. Re:Hmm... I have a question. by K.+S.+Kyosuke · · Score: 4, Informative

      Given the stresses of launch, how long would such a finish remain highly polished, or at least reflective enough to protect against a laser?

      I think you're dealing with a cascade degradation problem anyway. Once a tiny part of the reflective surface loses its reflectivity because the beam melts it, or for whatever reason that can happen, the rocket is done for. There's no problem with laser weapons that can't be solved with the pulse being strong enough and short enough, since you'll never have a 100% reflective surface. Even in experiments with laser-initiated fusion, where the cleanliness and optical properties of the whole system have lab-grade care taken of them, the optical interfaces are a bitch.

      --
      Ezekiel 23:20
    6. Re:Hmm... I have a question. by Anonymous Coward · · Score: 0

      Chromium is a very hard substance but it is a bit brittle! Still, the technology of chrome plating is VERY old and the problem of adhesion of chrome plating has been solved. Don't belive me? Look at all the chome parts on older cars. By the way, I know what I am talking about, I was a chemist at a chrome plating shop.

    7. Re:Hmm... I have a question. by Anonymous Coward · · Score: 0

      Or, perhaps the standard will become "fire five rockets at once".

    8. Re:Hmm... I have a question. by AmiMoJo · · Score: 1

      Given the stresses of launch, how long would such a finish remain highly polished, or at least reflective enough to protect against a laser?

      Ever seen footage of those old unpainted aircraft? I'm sure these days the alloys they use are even more resilient.

      I imagine designers will start to double insulate missiles as well, so that the outer skin can get extremely hot without affecting the inside temperature much.

      Is the laser accurate enough to target the engine nozzles, which would very quickly lose any lustre they may have?

      That will only work if you position the laser such that it can hit the nozzle. A smart missile might even use the laser beam to target itself at the emitter, similar to how anti-radar missiles work, or adjust its flight path to shield vulnerable parts long enough to avoid being destroyed.

      --
      const int one = 65536; (Silvermoon, Texture.cs)
      SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
    9. Re: Hmm... I have a question. by phatStrat · · Score: 1

      "Ladies and gentlemen, for your consideration... the Jericho."

    10. Re:Hmm... I have a question. by Anonymous Coward · · Score: 1

      Given the stresses of launch, how long would such a finish remain highly polished, or at least reflective enough to protect against a laser?

      High power rated mirrors used in construction of high power lasers which quickly get damaged if there is a fingerprint or dust on it will still get destroyed quickly if you exceed their damage rating even when in a pristine state. In a lot of such systems, this only requires a little bit of focusing (i.e. only concentrating the power by maybe a factor of 2), and you damage mirrors specifically tuned to the wavelength and aligned to the laser. Once damage starts to form, damaged spots are not very reflective and will absorb a lot more power.

      So a well polished surface will only gain you a tiny fraction of a second before damage removes the polish. You would probably be better off trying to find a way to radiate, absorb, or distribute the heat so that it only amounts to localized surface damage instead of bulk heating of components.

    11. Re:Hmm... I have a question. by Overzeetop · · Score: 1

      Last second maneuvering would be one way to avoid this, but this has a far higher tolerance than a kinetic vehicle defense system. For an incoming munition, a quick shift just a few feet is enough to foil a kinetic attack as the reaction rate is low even for a thrust vectored, active kill vehicle. An az-el tracking system at 1km out is going to be dealing with arc-minutes of shift per second even if the incoming vehicle is pulling several Gs of acceleration. At burnout, that rocket was likely seeing 5-10 Gs of deceleration, maybe more. High power amateur rockets with fast-burning propellants can see burnout decellerations in excess of 30Gs, especially for transonic regions. (I know; I had one shred at 60 feet in the air after leaving the pad at nearly 220Gs acceleration)

      As for overwhelming the system, that's another tack. But you've just increase the cost-per-kill for your enemy. That may not seem like it matters, but a cruise missile has a 7 figure pricetag, and you can only make and transport so many of them in theater.

      --
      Is it just my observation, or are there way too many stupid people in the world?
    12. Re:Hmm... I have a question. by bcmm · · Score: 2

      What about retroreflectors? Presumably, it would require only a miniscule fraction of a missile-killing laser beam to screw up the tracking optics.

      --
      # cat /dev/mem | strings | grep -i llama
      Damn, my RAM is full of llamas.
    13. Re:Hmm... I have a question. by flayzernax · · Score: 1

      It makes a nice point defense system at the very least for a critical target.

    14. Re: Hmm... I have a question. by dAzED1 · · Score: 1

      And how many of the parts that you finished were then subjected to the stresses involved on the cone of a missle?

    15. Re:Hmm... I have a question. by Anonymous Coward · · Score: 0

      And it is pretty trivial to filter out the vast majority of a know wavelength for sensitive optics, even at the high power levels. Additionally, if the laser is focused on the target, it won't be focused by the time it gets back to the area around the source.

    16. Re:Hmm... I have a question. by Solandri · · Score: 2

      Aluminum is usually the go-to material for broadband reflectance in the visible spectrum. It's about 93% reflective when freshly applied (it corrodes on contact with oxygen to form a thin layer of transparent aluminum oxide which helps protects it from further corrosion but degrades reflectivity - better to coat it with something else). You can improve it a bit with coatings, but those are highly directional. Silver is a bit better for most of the visible spectrum, but falls off quickly towards the blue/ultraviolet end which is where many powerful chemical lasers emit (dunno what this system uses). Chrome is actually pretty bad, usually around 60%-80%. Other tricks like dielectric mirrors are highly sensitive to wavelength and incident angle, while total internal reflection prisms (common in binoculars) only work for a narrow range of angles.

      So best-case aluminum will still absorb 7% of the laser energy, meaning worst-case the laser needs 14x more time to heat up a target vs. a black one (ignoring cooling). Of course if the range of this laser is only 2 km, that may make a huge difference.

    17. Re:Hmm... I have a question. by drinkypoo · · Score: 1

      A new generation of reactive armor will have to be developed to defend against lasers. Some kind of fun phase-change material stored in layers of lattice?

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
    18. Re:Hmm... I have a question. by gl4ss · · Score: 1

      something like clay would probably have better time at dissipating the heat. or heck, a layer filled with water or something else that evaporates.

      --
      world was created 5 seconds before this post as it is.
    19. Re:Hmm... I have a question. by Anonymous Coward · · Score: 0

      14x more time to heat up a target

      Or more like 14x as much time to heat up the surface of the target so that its optical properties are destroyed and quickly approach something similar to a dark material absorbing a majority of the energy. Between higher temperatures aiding oxidation and damage to surface finish, it doesn't take too much laser power to damage the surface compared to what is usually needed to actually penetrate metal or even to heat the whole component.

    20. Re:Hmm... I have a question. by K.+S.+Kyosuke · · Score: 1

      I imagine designers will start to double insulate missiles as well, so that the outer skin can get extremely hot without affecting the inside temperature much.

      Yes, and if the weapon designers decide to send the energy in very short pulses, you end up having to cope with mechanical stresses - the pulse will turn a small amount of the missile surface into plasma which will send a shock wave through the construction. Essentially, this could work like a small HESH warhead. I really don't think there's a lot you can do against lasers in a flying object that has to be lightweight (by virtue of having to, you know, actually *fly* and deliver some sizable payload to its target).

      --
      Ezekiel 23:20
    21. Re:Hmm... I have a question. by avandesande · · Score: 1

      I have more objections than that-
      1) looked like a hobbyist type rocket, paper and wood
      2) rocket didn't go very fast at all
      3) was on a wire with a predetermined path
      Pretty unimpressive from my standpoint

      --
      love is just extroverted narcissism
    22. Re:Hmm... I have a question. by K.+S.+Kyosuke · · Score: 1

      Even the most basic evasive manuevering algorithms have proven amazingly effective at getting past other missile defense systems. It's hard enough to target something moving in a straight line, and the complexity of the problem rises nonlinearly as the target's course becomes more erratic.

      It's also very difficult for a missile in terminal flight to evade and hit the target at the same time.

      --
      Ezekiel 23:20
    23. Re:Hmm... I have a question. by Digicaf · · Score: 2

      That would be a 7% absorption in ideal conditions only during initial contact. Once the coating and reflective surface reach a critical temperature then there'd be a cascading failure. The coating would be subject to both ablation and charring, which might actually help the laser more than hurt it.

      There are a lot of factors that would quickly degrade the initial absorption figure (quality of coating, wavelength, surface contaminants, etc...). But even with that, I'd bet that a reflective mechanism would only slow down the process by a second or two.

      Assuming this takes off, what we'll probably see will be an arms race of a sort. Missile designers would start using reflective surfaces and internal insulators while the laser designers would increase power, focusing ability, and introduce wavelength shifts (maybe dynamically). This could get interesting.

    24. Re:Hmm... I have a question. by jarek · · Score: 1

      Reflection of chrome isn't all that good. Aluminium would be better but difficult. Silver is easy. Probably the way to go.

    25. Re:Hmm... I have a question. by CrimsonAvenger · · Score: 1

      Whatever makes you think the tracking optics are coincident with the laser?

      --

      "I do not agree with what you say, but I will defend to the death your right to say it"
    26. Re:Hmm... I have a question. by Anonymous Coward · · Score: 0

      Never mind using mirrors to survive the laser, what about using retroreflectors on the likely target points? How long can the laser stand its own heat? Force the target to defend with as many lasers as you are likely to have warheads + decoys. Sure, possible, but really expensive and that's what modern war is about. Bankrupt your potential enemies trying to counter your relatively cheap weapons before you ever have to fire a shot.

      Of course retroreflectors will make the missile painfully obvious on radar, but that's why you have both stealth and obvious missiles, right?

    27. Re:Hmm... I have a question. by bishopBelloc · · Score: 1
      I think you missed a video.

      There are two on the site and you seem to only be referring to the second one.

      FTA:

      Last year Lockheed Martin carried out a similar test, but in that case the missile that got destroyed was tethered and moved along a predetermined path. Clearly progress has been made and ADAM can now track a freely moving target.

      Check out the second video that appears to be shooting down an untethered missile and is implied to not be following a predetermined path:
      http://www.youtube.com/watch?v=kgUnDeED9MM

    28. Re:Hmm... I have a question. by Anonymous Coward · · Score: 0

      Missile designers would start using reflective surfaces and internal insulators while the laser designers would increase power, focusing ability, and introduce wavelength shifts (maybe dynamically). This could get interesting.

      Or it could be over very quickly, as it is easier to increase laser power by a factor of ten than it is to increase the reflectivity and cooling by similar amounts. Laser development and power has been exponential, similar to Moore's law.

    29. Re:Hmm... I have a question. by Anonymous Coward · · Score: 0

      Depending on the focusing and atmospheric effects, it would take a lot more than a retroreflector to damage the laser, or at least take a bit of luck. The beam will be much more focused on the target than it would be on the return, so the power density at the source laser would be much less. Additionally, such retroreflector would have to survive the damage from the laser longer than the source laser, at higher power densities, and with more weight, mechanical, and cost constraints.

    30. Re:Hmm... I have a question. by Anonymous Coward · · Score: 0

      You can't target the nozzles of an incoming missile . . .

    31. Re:Hmm... I have a question. by Anonymous Coward · · Score: 0

      Distribute heat by rotating the missile. They needed some time to destroy this missile, by having the laser drill a hole through it. With the missile rotating too fast for that, the heat is distributed around the missile. They may need the laser to cut a complete ring in the skin before the missile disintegrate.

    32. Re:Hmm... I have a question. by matfud · · Score: 1

      Yep it would. However it is heavy and the out gassing would change where the thing is going unless it is still able to move.

    33. Re:Hmm... I have a question. by Anonymous Coward · · Score: 0

      Depending on the type of missile, there may be no need to penetrate the covering at all. Higher speed missiles will disintegrate if you weaken the structure of the nose due to aerodynamic pressures, which only requires increasing the temperature, not actual melting or burning through. Other types just need enough heat to penetrate to damage or impede internal components. The latter part may not be helped much by rotating.

      Besides, in a couple of years, you will probably see a similar system with about ten times as much power and the rotation will no longer be effective. Higher power chemical lasers have already demonstrated they can shoot down rotating artillery shells anyways.

    34. Re:Hmm... I have a question. by Anonymous Coward · · Score: 0

      How long before we start seeing missiles with highly polished chrome finish on the outside?

      Why does this fucking braindead question come up every time a laser defence system is discussed?

      We've only debated the point EVERY FUCKING TIME, you'd think we'd be sick of it by now.

    35. Re:Hmm... I have a question. by DerekLyons · · Score: 1

      Assuming this takes off, what we'll probably see will be an arms race of a sort. Missile designers would start using reflective surfaces and internal insulators while the laser designers would increase power, focusing ability, and introduce wavelength shifts (maybe dynamically). This could get interesting.

      From the point of view of the defenders such a race is a good thing - because it increases the difficulty of handling the missile, and either decreases it's range or decreases it's payload (for the same size missile as prior to the arms race). All the defenders have to do is increase the power - which they're going to do anyway.

    36. Re:Hmm... I have a question. by Technician · · Score: 1

      Polished chrome varies depending on wavelength. For example a clear plexiglass sheet is opaque to FLIR. On the otherhand an oxidized grey sheet of aluminum plate is a polished mirror at the same wavelength. White aluminum oxide paint may protect it at some wavelengths. Note in the video the targets were painted black. Reflecting 95% instead of absorbing it will require a much higher power LASER.

      --
      The truth shall set you free!
    37. Re:Hmm... I have a question. by Anonymous Coward · · Score: 0

      ablative coatings

    38. Re:Hmm... I have a question. by Anonymous Coward · · Score: 0

      Also Would like to see how well this works when the enemy is burning some white phosphorous in the targeting area. Hell Strap som WP to the first round, It will obscure the second round that flies in be hind it. These systems are prone to saturation (i.e fire more than one missile) as well which considering the cost imbalance of the system v the incoming rocket (that this system is designed for gaza ect) this is not going anywhere for a while. But f**k it Lasers are sexy and win the funding!

  6. Act Now, Supplies Are Limited by xxxJonBoyxxx · · Score: 4, Insightful

    >> As well as providing the equipment necessary to fire missiles, defense contractors also want to offer customers the ability to defend against them.

    Naturally. How else would you extract top dollar from both sides?

    1. Re:Act Now, Supplies Are Limited by oodaloop · · Score: 2

      I'm pretty sure niether China nor North Korea got their missiles from Lockheed Martin.

      --
      Tic-Tac-Toe, Global Thermonuclear War, and relationships all have the same winning move.
    2. Re:Act Now, Supplies Are Limited by Anonymous Coward · · Score: 0

      Stealing weapon technology from Western defence contractors is commie tradition.

    3. Re:Act Now, Supplies Are Limited by Anonymous Coward · · Score: 0

      Not directly, you mean. Once created, it's inevitable the technology will be leaked to or be "clean sheet" re-engineered, by, eventually, all of one's enemies.

    4. Re:Act Now, Supplies Are Limited by Anonymous Coward · · Score: 1

      Unfortunately, Slashdot doesn't have an option for the more-precise "+1 Tragicomedy"...

    5. Re:Act Now, Supplies Are Limited by interkin3tic · · Score: 1

      How else would you extract top dollar from both sides?

      Lobbyists, bribery, paranoia, and threat construction. None of which require you to offer defensive systems against your own "defensive systems."

    6. Re:Act Now, Supplies Are Limited by Anonymous Coward · · Score: 0

      Naturally. How else would you extract top dollar from both sides?

      Do you get all your current events from Iron Man? Because Lockheed isn't selling these things to Iran, Hezbollah, or Palestine, the most obvious groups that would want to get around this defense....

    7. Re:Act Now, Supplies Are Limited by Anonymous Coward · · Score: 0

      Actually, I think it is more about repeat customers.

  7. Aircraft carriers by Anonymous Coward · · Score: 1

    Maybe carriers won't go extinct after all

    1. Re:Aircraft carriers by gl4ss · · Score: 0

      Maybe carriers won't go extinct after all

      I'm sure they'll have a missile design that's immune to this soon enough.
      moreover, this design looks like it needs to know the type of missile?

      and editors, why the fuck is the subject in flight if it's tethered missile? or am I superman since I "flew" on a zipline once??

      --
      world was created 5 seconds before this post as it is.
    2. Re:Aircraft carriers by cyberchondriac · · Score: 2

      You watched the wrong (bottom) video then - that was last year's test. This year the missile was in free flight. However, the site provided both videos on the same page.

      --

      Look back up at my post, now look back down, you're on the Internet. Now look back up. I'm a signature.
    3. Re:Aircraft carriers by akb · · Score: 1

      This laser with its 1.5km range would be of little use against a maneuverable DF-21D traveling at Mach 10. SM3 is the missile being tapped to for that duty but the kill vehicle is not the big challenge.

    4. Re:Aircraft carriers by Overzeetop · · Score: 2

      That *might* be true. Remember that Mach 10 is not the likely speed of the craft at full atmospheric density, and at high speeds the integrity of the heat sheilding is very critical to performance. For an incoming missile, the long range slew rate on the laser will be very low (i.e. easy to acquire and track), and actual penetration of the airframe won't be necessary if the skin is at or near it's thermal limits on final approach to the target.

      So, yes, 1.5km will be covered very, very quickly by a hypersonic vehicle on final targeting (likely around 2 seconds, M=2.5, at 1 atm), but it won't take much more before this system will be capable of destroying one as long as it can track it and apply power as soon as it enters the effective zone.

      --
      Is it just my observation, or are there way too many stupid people in the world?
    5. Re:Aircraft carriers by Anonymous Coward · · Score: 0

      Intercepted during the coasting stage when the unpowered DF-21D is traveling in its ballistic arc and the warhead is doomed. All this maneuvering the DF-21D is supposed to be capable of happens during the terminal dive of the warhead towards the target. Further if the DF-21D has any sensors onboard to help it locate the carrier during its terminal dive, the laser will damage them and make locking onto the carrier impossible. Finally as others have pointed out the impact of the laser pulse on the structure of the warhead can upset the trajectory of the missile and allow aerodynamic forces to tear the missile warhead apart. No structure can survive any deviation at Mach 10. Look what happened to the Shuttle. The untested.DF-21D is a paper tiger

  8. home version by Anonymous Coward · · Score: 0

    Now if they can make it small enough to zap the flies and mosquitos that inhabit my house in the summer...

    1. Re:home version by SecurityGuy · · Score: 4, Interesting
    2. Re:home version by fustakrakich · · Score: 1

      Better yet, print one and start shooting down the drones, or at least blind all the surveillance cameras.

      --
      “He’s not deformed, he’s just drunk!”
    3. Re:home version by Anonymous Coward · · Score: 0

      Seems like absolutely ridiculous and stupid overkill to me. Mosquitoes have mosquito brains and happily fly into traps. At least in Northern Europe, where mosquitoes are just a nuisance since they don't spread any diseases, electronic mosquito traps which emit a smell that attracts them and then zap them with electricity have become popular enough to be a problem. People leave them on on their summer cottages all summer even when they're not there and kill so many mosquitoes that it has already upset the eco balance.

  9. Why don't you take an existing product and put... by Anonymous Coward · · Score: 0

    Why don't you take an existing product and put it on a truck.
    Boeing did this years ago from a 747, while in flight.
    so LM, who makes planes, said lets do that but do it easier by not making it fly.
    yawn.

  10. Arms race. by Anonymous Coward · · Score: 0

    In response, all the worlds missles are now chrome plated, and you're burning the city or a forest, or whatever on the ground.

    1. Re:Arms race. by K.+S.+Kyosuke · · Score: 1

      In response, all the worlds missles are now chrome plated, and you're burning the city or a forest, or whatever on the ground.

      That wouldn't work. The reflective surface wouldn't be able to do that with the beam hundreds of meters away. Why do you think that optical mirrors are so precisely shaped?

      --
      Ezekiel 23:20
  11. Re:Why don't you take an existing product and put. by SJHillman · · Score: 1

    A trailer is considerably more maneuverable than a 747. It also uses a lot less gas if defending a stationary target. And a lot less $$$ overhead just to mount a weapon.

    Plus pretty much all of the other reasons why automakers are still around when aviation manufacturers can make stuff that *flies*

  12. not as useful as you might think by Anonymous Coward · · Score: 1

    These are designed to defend against qassam type rockets. Qassam rockets are very simple rockets (steel tubes, warhead on the tip, no electronic gizmos) that are fired into Israel by the Palestinians. I doubt that they could defend against something more substantial.

    1. Re:not as useful as you might think by Anonymous Coward · · Score: 0

      Just curious if there's a reflective coating that can be applied to heavily reduce the impact of the laser.

      I mean, there has to be a way to protect commercial airplanes from these weapons, which could be used on the missiles themselves.

  13. Just a few seconds to react by sjbe · · Score: 3, Interesting

    Considering this a defensive system 2 kilometers means the high velocity threat is nearly on top of what you want to protect.

    Let's say we have a cruise missile traveling at roughly mach 1 or about 1,150 kph - actually pretty slow compared to many missiles. That means that the missile would cover the 2 kilometers in about 6.25 seconds. Better have a hell of a good target tracking system...

    1. Re:Just a few seconds to react by berashith · · Score: 1

      not all missiles have to reach the ground to deliver their destruction. This seems to be most useful at a distance from the target, in between the suspected launch point and target. Depending on the range of motion, that could nearly double the amount of time to destroy the missile. Like you say, this may require slowish missiles, and a somewhat low trajectory to stay in range. Still, portable tracking, aiming, and power is impressive.

    2. Re:Just a few seconds to react by Nethemas+the+Great · · Score: 2

      Sounds like a point defense system--for when all else fails. The targeting/tracking system need not be limited to the effective range of the laser.

      --
      Two of my imaginary friends reproduced once ... with negative results.
    3. Re:Just a few seconds to react by Overzeetop · · Score: 5, Insightful

      A target tracking system for an incoming missile will have a much lower slew rate than the video, where the target is flying perpendicular to the beam. Unless the missile starts doing the Harlem Shake on the way in, it's a sitting duck for a laser adjacent to the target. Also note that the internal tracking system is good to 5km out, so that gives it 10 seconds to lock onto the final trajectory, and it can be tied into a larger tracking system as well.

      This is clearly limited to smaller, slower, less sophisticated munitions right now, but I would anticipate larger power as they get better, which means effectiveness further out and quicker kills. Heck, you don't need any laser research to quadruple the power of this laser - just bring in four of them and target the same incoming vehicle.

      --
      Is it just my observation, or are there way too many stupid people in the world?
    4. Re:Just a few seconds to react by amicusNYCL · · Score: 1

      Let's say we have a cruise missile

      Why? What exactly do you think this system is designed to protect against, an attack from a sophisticated air force? There's a reason they say that they are testing the system on Qassam style rockets. A Qassam rocket isn't supersonic. But you can bet that if they get a few years of good experience with this thing deployed in the field, they'll eventually end up with a bigger version.

      --
      "Our two-party system is like a bowl of shit looking at itself in a mirror." - Lewis Black
    5. Re:Just a few seconds to react by loneDreamer · · Score: 1

      Uh, a different idea might be to have more than one, spread out. I see no reason why we can't start heating with laser A and continue with laser B. Especially if for any reason scaling them up gets complicated.

    6. Re:Just a few seconds to react by cavreader · · Score: 1

      The scary thing about these new weapon systems is that given enough time and money a laser, electronic, or kinetic based missile interceptor will render every countries missile stockpiles practically useless. What would Russia do if the US was able to reliably counter their ICBMS? You know their would be some moron in Washington that would start proclaiming that the US could actually win now so full steam ahead. The only thing that has stopped a global all out war is the nuclear stockpiles of the major players. Without that balance all bets are off.

    7. Re:Just a few seconds to react by matfud · · Score: 1

      That was what I was thinking.
      Currently you have available:
      a) A Phalanx Centurion C-RAM (land based version) which can possibly hit something up to 4km away but generally much closer and sprays god knows what downrange (if that is a town then ....) Costs a lot but firing is fairly cheap iff you can keep it supplied. And whatever you hit still fragments and rains down on the original target.

      b) A short range anti-missile missile system. Something like http://en.wikipedia.org/wiki/Iron_Dome
      Far longer range up to 70km aparently. The cost is hundreds of thousands of dollars per firing and the detritus of both missiles rain down somewhere.

      Both are used against fairly short range ballistic projectiles (shells, mortars, unguided missiles).

      This approach has the advantage of being cheap to fire and only have the remains of the target raining down on you. And lower supply requirements.

    8. Re:Just a few seconds to react by Anonymous Coward · · Score: 0

      Uh, a different idea might be to have more than one, spread out...

      That's what she said.

  14. cool, except for.... by Anonymous Coward · · Score: 0

    north korean missiles will be so unpredictable and so off target, it'd be *impossible* to position a truck, or even a fleet of them, in position to take one out.

  15. Re:Why don't you take an existing product and put. by Anonymous Coward · · Score: 0

    Well LM did do the beam control and targeting for that Laser on the Boeing airplanejust saying, its a little naive to make this Lockheed vs Boeing (it wouldn't surprise me if Boeing had some part of this laser on a truck)

  16. Mirror surface, by Pirulo · · Score: 1

    I always wondered. What if the targets are covered with a high quality reflective mirror surface?

    1. Re:Mirror surface, by Overzeetop · · Score: 2

      It just takes slightly longer to destroy them. The best reflective surfaces are easily fouled by handling. Ever see what happens when you accidentally touch a headlamp (or projector) bulb with your finger while installing it? It still looks perfectly transparent, but *boom* it doesn't last long under even a 50W heat load. Now take your awesome mirror finish and send it through tens or hundreds of miles of atmospheric dust/bugs/ impurities. All of a sudden your ideal mirror becomes just good. Then we hit it with a laser and the energy that does get absorbed chars whatever is on there, which makes it even less reflective, and just like that your perfect mirror becomes just another ho-hum surface we can cook popcorn inside of.

      --
      Is it just my observation, or are there way too many stupid people in the world?
    2. Re:Mirror surface, by Anonymous Coward · · Score: 1

      Might not help. No mirror can reflect 100% of a given wavelength. Putting a mirror on the missile will increase the time you need to train the laser on it, but the mirror will still be heating up quite a bit from a High Energy Laser. You'll be increasing the time-to-kill by the amount of time it takes to punch through the reflective layer, which may be seconds.

  17. See? SEE? by Anonymous Coward · · Score: 0

    We told you SDI would work!!

    .

    1. Re:See? SEE? by Anonymous Coward · · Score: 0

      Those fucking lasers are pointed AWAY from earth. Derp. SDI was a joint soviet / US operation. What you were told was a ruse.

  18. This is extremely out of date. by flayzernax · · Score: 1

    Ft Bliss USA, they were testing lasers on conventional ballistics. Maybe the program finally completed and this is the end result. But I suspect this can also shoot down ballistics as well.

    1. Re:This is extremely out of date. by Anonymous Coward · · Score: 0

      Were those the chemical laser based systems that got rejected due to unrealistic logistics requirements and limited firing rate?

    2. Re:This is extremely out of date. by flayzernax · · Score: 1

      I don't know the details for you sorry =/ There's a good chance your right. I will tell you that I heard about lasers targeting ballistics from my CO. He could have been bullshitting us. But he was not prone to that kind of behavior =)

    3. Re:This is extremely out of date. by Anonymous Coward · · Score: 0

      The Tactical High-Energy Laser shot down mortar shells over ten years ago and a few years later could defeat a salvo. But I've heard it described as being the size of several school buses and it was a chemical based laser that consumed expensive and hard to supply chemicals every time it fired. Interest was lost in the project due to how expensive it was to both make and run. Israel, who had a big interest in the project, instead went for a missile based system for their Iron Dome system. I've heard in the mean time that the laser system had been improved so it would costs about $10k per shot worth of chemicals, versus the $50k per missile in something like Iron Dome, but there were still concerns over practicality and reliability. At this point, they are probably holding out for something more like this that uses solid state lasers that would cost a few cents of electricity to fire (plus long term maintenance costs, although that should be within an order of magnitude of other similar systems, and still much cheaper than thousands of dollars a shot).

    4. Re:This is extremely out of date. by flayzernax · · Score: 1

      That sounds like it. Thanks for the informative response =)

      In 2000 and 2001 THEL shot down 28 Katyusha artillery rockets and 5 artillery shells. http://en.wikipedia.org/wiki/Tactical_High_Energy_Laser

      Is pretty much what he was talking about then.

      The I guess I'll have to RTFA about this new one ;p

  19. Yet by Overzeetop · · Score: 1

    you forgot that part.

    --
    Is it just my observation, or are there way too many stupid people in the world?
  20. Only 2000m by Anonymous Coward · · Score: 1

    So at mach 5, you really don't have much time to kill the missile...

  21. Re:Why don't you take an existing product and put. by fuzzyfuzzyfungus · · Score: 1

    Why don't you take an existing product and put it on a truck.
    Boeing did this years ago from a 747, while in flight.
    so LM, who makes planes, said lets do that but do it easier by not making it fly.
    yawn.

    The Boeing system(the YAL-1) was a chemical laser. Those things are markedly better at high power compared to ordinary photopumped gas lasers or solid state lasers; but are somewhat disliked because of the difficulties involved in supplying and exhausting substantial quantities of nasty halogens under field conditions.

  22. Noticed by Dunbal · · Score: 2

    The rockets were painted black. What happens when a rocket is not painted black?

    --
    Seven puppies were harmed during the making of this post.
    1. Re:Noticed by Anonymous Coward · · Score: 1

      It's a red door.

    2. Re:Noticed by Anonymous Coward · · Score: 0

      The rockets were painted black. What happens when a rocket is not painted black?

      The exact same thing.

    3. Re:Noticed by DerekLyons · · Score: 2

      It takes .125 seconds to destroy a black target, .1251 to destroy a non-black target. Seriously, at these energy levels the color of the target is largely irrelevant.

    4. Re:Noticed by tommeke100 · · Score: 1

      Send in the Rolling Stones

    5. Re:Noticed by Anonymous Coward · · Score: 0

      It takes .125 seconds to destroy a black target, .1251 to destroy a non-black target. Seriously, at these energy levels the color of the target is largely irrelevant.

      What about mirror coated targets. Ouch my eye!

  23. Fog or Rain? by sl4shd0rk · · Score: 1

    I'm guessing you need pretty clear weather for the targeting system to work.

    --
    Join the Slashcott! Feb 10 thru Feb 17!
  24. Re:Why don't you take an existing product and put. by Anonymous Coward · · Score: 0

    The laser system used on previous airborne tests were chemical lasers. The lasers consumed chemicals each time they fired, which usually had really messy logistic problems and were expensive. The 747 system would only get about 20 shots before having to land and get more fuel for the laser systems.

    Newer laser systems in the news in the last year or two are doing similar things that may seem like they were done a decade ago, but instead are being done with solid state lasers that only consume electricity in the short run. As long as they are supplied electricity, they can keep firing, and that makes them much cheaper and easier to actually use in real world situations. The systems should ultimately be much more robust and reliable too, but it has taken a lot of research to get such systems to be portable and high power.

  25. The 80's called. They want their space lasers back by Anonymous Coward · · Score: 0

    This was talked about in the 80s (there was even a movie made about it) but was neutralized when it was learned that all Russia had to do to completely nullify this defense mechanism was to have their missiles rotate in flight.

  26. Until it rains?... by tandr · · Score: 1

    Missile defense system is designed to operate when the target is in *clear* sight? What if skies are not so clear - heavy rain, fog, or dust?

    "Baron, my apologies. These madmen are attacking under cover of the storm." --Frank Herbert, "Dune"

    1. Re:Until it rains?... by Nemyst · · Score: 1

      It's not quite that simple. If the beam is narrow enough, it won't pass through much rain. If the beam is of the proper wavelength, fog may not deviate it much. Furthermore, there's the little element that the beam will instantly evaporate whatever water it comes close to, so it could very well "buffer" an area around it just by being there. This isn't to say it wouldn't be affected at all, but chances are it could still be effective if calibrated properly.

  27. Re:The 80's called. They want their space lasers b by MozeeToby · · Score: 1

    A) This is for targeting smaller missile (non-balistic). Smaller missiles are... well smaller. They take less heat to damage and cause failures and they have less surface area to spread the heat out over.
    B) That was 30 years ago. Laser power and tracking has improved just a bit since then.
    C) This is more about defending against the kind of dumb rockets that Hezbollah fires into Israel every so often as it is about an engagement with a highly funded modern military.

  28. Phased plasma rifle in the 40 watt range by tekrat · · Score: 1

    Terminator: "Phased plasma rifle in the 40 watt range."
    Shopkeeper: "hey, just what you see here pal..."
    Terminator: "Uzi nine millimeter."
    Shopkeeper: "You really know your guns. This baby's perfect for home defense..."

    --
    If telephones are outlawed, then only outlaws will have telephones.
  29. Re:The 80's called. They want their space lasers b by Anonymous Coward · · Score: 0

    Rotation of missiles in flight also makes escape velocity lower.

    http://www.bibliotecapleyades.net/exopolitica/exopolitics_vonbraun02.htm
    http://www.brucedepalma.com/n-machine/spinning-ball-experiment/

  30. Cool... by Anonymous Coward · · Score: 0

    But did they have to follow the video with PSY's Gangnam Style?

  31. PETA Approved? by Toad-san · · Score: 1

    Apparently no birds were harmed in the making of that video.

    We'll probably never see the videos where they were :-)

  32. What are the alternatives? by eepok · · Score: 1

    Honest question.

    What alternatives are there to a low-production, high-powered laser that likely requires a ton of support crew/machinery to take out missiles?

    Phalanx or successors? Are these considered competent?
    What about missile-to-missile platforms?

    And how useful is this thing if it's not an on tangential course?

  33. The Crossbow Project: by fatboy · · Score: 1

    There is no defense, like a good offense.

    --
    --fatboy
  34. Re:Why don't you take an existing product and put. by alexander_686 · · Score: 1

    They are very different creatures. The Boeing YAL-1 was deigned to shoot down missiles 100s of miles away (ballistic missiles in launch phase.). And part of the problem was its lack of range– it had to linger close (for ballistic missiles that is) to its target, which means you would have to have multiple plans covering the same area to accommodate refueling, service, etc.

  35. Hmm - naming issue, anyone? by Phoenix+Rising · · Score: 1

    ADAM - Absolute Destruction of Available Mass

    (Megazone-23, part 2)

    --
    Let us live so that when we come to die, even the undertaker will be sorry -- Mark Twain
  36. Military applications by Anonymous Coward · · Score: 0

    I guess this makes me part of the "What's happening to Slashdot? Everything was better in the imaginary past"-crowd but I can't remember seeing as many stories glorifying purely military accomplishments as in the last few months. Tried to search a bit, maybe I am just imagining things.

    Sure, achievements are not tied to applications but I can't see much else here either.

    Getting this slightly disgusted feeling.

  37. optimal nuclear blast detonation by Anonymous Coward · · Score: 0

    can be higher then 2 KM for maximum dispersion thus this test is meaningless except for conventional warheads.

    1. Re:optimal nuclear blast detonation by Anonymous Coward · · Score: 0

      Umm, area defense weapons like this are for small conventional missiles and in some cases for ballistics. The work has zero intention for use on something like an ICBM and your comment isn't relevant. Systems intended for use against nuclear weapons and other long range ballistic missiles had ranges in hundreds of kilometers.

  38. so by Anonymous Coward · · Score: 0

    so when the nuclear missle/bomb goes off at 1.5 km cause the chrome plate refracts enough of it.....POOF and hundreds of meters actual nukes DONT HIT the target the explode and the cone downward is the affect......thus you get your mushroom cloud....
    thus this is as useless as wasting power required...go look at how much a laser of this power needs.

    1. Re:so by Anonymous Coward · · Score: 0

      This system is not designed for handling nuclear weapons... nuclear weapons don't detonate well, if at all, when damaged due to how precise the timing of their explosive components needs to be, plus so they won't explode in case of an accident when handling...if the nuke is going for airburst and you hit it before it blows up, it is not going to be at the optimal altitude or it would have already detonated... and fiber lasers are rather efficient in the world of high power lasers, with upwards of 25% wall power to laser power efficiency, in which case a 10 kW laser would be on the order of 50 horsepower of input...

  39. Re:Why don't you take an existing product and put. by Bob+the+Super+Hamste · · Score: 1

    I have wondered why they just don't use the good old CO2 industrial lasers scaled up instead of halogen based ones. Then again I am not big into knowledge of lasers and the how and why but it would seem that if a 100W CO2 laser is good for welding then why wouldn't a 10KW one be good for burning through missles?

    --
    Time to offend someone
  40. Useless after ballistic trajectory by mrops · · Score: 3, Interesting

    2KM is kinda useless once the missile has achieved ballistic trajectory.

    At speed of 2.5km/second, the missile will whiz pass this thing quicker than any damage can be done to it.

    Note both the videos show the missile at launch, when they are not at top speed, may work for Hamas to Israel scenario, won't work for North Korea to South Korea type of scenario.

    1. Re:Useless after ballistic trajectory by Anonymous Coward · · Score: 0

      While experimental high speed missiles can push past 3 km/s and some high speed kinetic weapons for use against vehicles are ~2 km/s, most missiles are a lot slower. A lot of stuff meant for use against aircraft will be in the 1-1.5 km/s speeds, and smaller stuff, especially used by someone like Hamas, or even NK for small scale tactical use, would be under 1 km/s. This system is not meant for use against long range, high speed ballistic missiles, although there are other such systems in development for that.

    2. Re:Useless after ballistic trajectory by Anonymous Coward · · Score: 0

      And what missiles go mach 7+??

    3. Re:Useless after ballistic trajectory by Anonymous Coward · · Score: 0

      This laser is a point defense system. It will perform the role of defending ships in the same role as the Phalanx CIWS is used against anti-ship missiles. Against ballistic missile systems like the Chinese DF-21D ASBM , the engagement will take place during the highest part of the missile's trajectory and will knock the missile off course or damage the warhead before re-entry. Also remember this laser weapon has been demonstrated against UAVs seeking to locate US Navy ships.

    4. Re:Useless after ballistic trajectory by Man+Eating+Duck · · Score: 1

      And what missiles go mach 7+??

      A lot of them do. For instance, the russian Topol-M achieves 7320 m/s, which is a lot more than 7 Machs no matter how you measure it. Missiles such as that one are hardened and probably impermeable to energy weapons for the foreseeable future, though, and they are not the intended target for this (or any) laser. Direct kinetic hits are likely the only way, short of nuclear weapons, to stop them in their tracks.

      --
      Are you a grammar Nazi? I'm trying to improve my English; please correct my errors! :)
    5. Re:Useless after ballistic trajectory by harlequinn · · Score: 1

      Non experimental ones achieve high speed - maybe not 3km/s (approximately Mach 9) but fast enough to evade this system in its experimental phase.

      A small list of production Mach 5 and higher missiles.

      Eg. the http://en.wikipedia.org/wiki/AIM-54_Phoenix screams along at 1.7km/s.
      http://en.wikipedia.org/wiki/MIM-104_Patriot - same speed.
      http://en.wikipedia.org/wiki/S-200_Angara/Vega/Dubna - 2.5km/s

      I'm sure there are many more. Probably a few Mach 9 variants.

      I wonder how well a mirror finish on a missile would protect it from lasers.

    6. Re:Useless after ballistic trajectory by harlequinn · · Score: 1

      "It will perform"

      It might - it will probably not be cost effective and get sidelined.

  41. Pounds are doing better than Euros this year by Anonymous Coward · · Score: 0

    Why is the distance in km?

  42. Step forward in tracking by Anonymous Coward · · Score: 0

    This thing is pretty darned useful, in the right context. It is focusing on a quickly moving object a few tens of meters long from kilometers away, keeping it lit for a period of seconds. That's the equivalent of targeting an automobile from across town. Did you see that laser moving around on that target? I didn't...

    You connect this thing to a larger laser powered off of the grid, and you've got control up to the horizon.

    This thing is no larger than a semi-trailer: that means it can be placed without anybody knowing where. They tell you it tracks targets up to 5 km away. That doesn't mean it can't go farther.

    Now, it looked to me that the laser was focused on the propellant portion of the missile, where the heat could ignite the fuel. I'd like to know if it can target a tumbling ballistic target, like a warhead separated from the missile (which can still hit its target).

  43. Re:Why don't you take an existing product and put. by Anonymous Coward · · Score: 0

    Probably the biggest problem, especially for some of the more mobile methods, was providing electrical power. If you had an optimistically 20% efficient 100 kW CO2 laser, you would need 500 kW of electrical power. Using conventional capacitors, this works out to a couple metric tons of just capacitors, per second of fire time you want. Recent developments in capacitors would have changed this easily by an order of magnitude or two, although I'm not sure how reliability factors into it (I've only worked on stationary systems where space & weight were not a concern, and power densities of the capacitors were lower than the estimate used above).

    Second, usually smaller wavelengths mean smaller optics, which would then mean easier to aim or alternatively lets you focus further away for a given optic size. So a 3.6 um DF laser would need optics a third the size of a 10.6 um laser, and a COIL laser would be nearly a tenth of the size.

    Also, different kinds of lasers have different qualities to the beams which makes some easier to focus over long distances or to apply further tech to counter distortion due to air. And at the higher powers, some designs would be much more reliable than others. In the end though, once caught up, solid state lasers like in the story here, would basically win at all of these factors.

  44. Other possible uses... by Anonymous Coward · · Score: 0

    Finally we can get rid of those pesky geese hanging out near our airport! (And if I worked there, I could pick up a nice lunch at the same time.)

  45. Missing the potential by Viking2054 · · Score: 2

    As a practical test to prove the potential I'd say it was a pretty good success. Imagine if you will mounting several of these things inside a 747 with some being able to shoot the laser out the bottom, the sides, and even the top of the jet. You'd have a mobile platform that can get reasonably close to the launch site and destroy missiles before they got close. From the looks of the size of the trailer I'd say you could easily fit 4 to 6 of these inside a jumbo jet or retrofitted B1 bomber and still have plenty of space for crew that may work on the things. Put them on a stealth bomber and you could easily destroy those missiles on the launch pad.

  46. And who exactly is about to launch by Anonymous Coward · · Score: 0

    missiles with less than a 2 km blast radius at the United States?

    Those damn Mexicans and Canadians getting uppity eh?

    Sounds pretty useless or a show of force at this stage of development.

    Besides, the German-built one is better. They probably have hoverboards and flying cars over there by now. With lasers.

    Them and their capitalism.

  47. Just fire more missiles by Funky+Jester · · Score: 1

    It would get expensive but firing more than one missile at your target would defeat a laser that can only target one. The launch sites would have to be located far enough away from each other that the missiles would be out of the blast radius for most of the flight. With civilian GPSs and wireless communication, I'm sure it wouldn't be difficult to synchronize the firing so that the missiles reach the target at the same time. (GPSs not for guidance but for calculating firing delays)

  48. Let's make it spin by Anonymous Coward · · Score: 0

    This only works because you are always hitting the same spot. Spinning the missile to dissipate the heat from the laser over the whole missile body could delay things just enough to get out of range. There is plenty of air cooling up there.

  49. Skeptical. It probably does not work. by bussdriver · · Score: 1

    Given the history of these contractors of doing rigged demos... Remember back to the rocket defense system where it came out they put tracking devices into the the rocket so all it had to do was fly towards the beacon in the target? After that huge PR nightmare one would think they would learn .... and usually it is not the right lesson (make it actually work) but to learn to do a better job of not getting caught.

    Everybody forget the F-22? That was lockheed martin. So, does this laser work in the rain? wouldn't be surprised... they managed to sell Americans an F-22 that didn't mix with water... I could see how falling water could mess a laser beam... And if the scattered light blinded people (a mile around) that would not only be bad for the people it protects but would violate Geneva.

    None of this matters-- They will sell a $billion+ of them if they work or not and we will buy it just to subsidize their company (hoping they make something better later - because our military is all about space weapons just waiting for when the politicians change their minds.)