Slashdot Mirror


Laser Cannons Coming to an F-16 Near You

dxprog writes "Reuters is reporting that the US Pentagon is designing a laser cannon that's small enough to fit onto a fighter jet yet powerful enough to knock out a missile. "The High Energy Laser Area Defense System (HELLADS), being designed by the Pentagon's central research and development agency, will weigh just 750 kg (1,650 lb) and measures the size of a large fridge." Now all we need to do is make fighter jets space worthy for that true Star Wars feel."

127 of 757 comments (clear)

  1. let's just get this out of the way: by WellAren'tYouJustThe · · Score: 5, Funny

    Will there be friggin sharks on them too?

    1. Re:let's just get this out of the way: by Fulcrum+of+Evil · · Score: 2, Funny

      Will there be friggin sharks on them too?

      Who needs a shark when you've got a veritech?

      Kids today...

      --
      "We returned the General to El Salvador, or maybe Guatemala, it's difficult to tell from 10,000 feet"
    2. Re:let's just get this out of the way: by HTL2001 · · Score: 4, Funny

      "...will weigh just 750 kg (1,650 lb) and measures the size of a large fridge."

      thats a bit to heavy

      then again... suppose 2 sharks carry it together... (to lazy to check monty python quote)

      --
      By reading this, you have given me brief control of your mind.
    3. Re:let's just get this out of the way: by Jambon · · Score: 2, Funny
      Will there be friggin sharks on them too?

      Yes, the fighters are expected to carry laser guided mutated sharks to attack ships, submarines, and naval bases.

      The technology is based on the theory that large predators are attracted to shiny objects. By shining the laser at the indended target, naval researchers believe that the sharks will simply follow the shiny light until it slams into the intended target, upon which the explosive chum fed to the shark will explode. Also, to aid in the transportation of the shark, the sharks will be put in a state of temporary hibernation. Once dropped, a chip in their brain will awaken them, giving them enough time to contemplate their existence before they hit the water and follow the shiny light....

    4. Re:let's just get this out of the way: by Daetrin · · Score: 2, Funny

      We have both this and the shape changing planes posted on the same day and the first thing you think of is if they have sharks on them? Now if you'd asked if they Transformed into sharks...

      --
      This Space Intentionally Left Blank
    5. Re:let's just get this out of the way: by idonthack · · Score: 2, Insightful
      jets with reflective surfaces.
      Great idea. Especially the part where we can see the sun glint off of them from 90 freaking miles away, and then we know where to shoot our missiles that have no problem with reflective surfaces.

      Anyways, since you can't make anything perfectly reflective, it will burn through if it's powerful enough or stays on the same part for a long time.
      --
      Why is it that when you believe something it's an opinion, but when I believe something it's a manifesto?
    6. Re:let's just get this out of the way: by BJZQ8 · · Score: 4, Interesting

      All this has been thought through in the 80's, when SDI was being developed. The amount of energy directed onto one spot is so intense it will burn through anything less than a polished mirror. Some people used to think that making ICBM's reflective, or twirl in flight, would solve things...but it's kind of like pirouetting in front of a 50 caliber rifle. These lasers are nothing to mess around with, they're thousands of watts projected onto a very small spot. The thermal shock alone is mind-numbing.

    7. Re:let's just get this out of the way: by sumdumass · · Score: 2, Interesting

      Well another school of thought is that we don't even have to burn a hole in the missle-aircraft.

      It apears that we can cause the propelent to expload before we actualy cause damage inside the shell of the aircraft. This was the basis of the ground based lasers and the ones mounted in the jumbo jets. I guess the trick would be doing this before the warhead is armed and mounting a laser capable of this task on a jet fighter might give the extra advantage.

      At less then 1700lbs, this setup well within weapons payload of the new F22 or more notably the even newer FB22 bomber as well as the existing F15 and F18 if it can be mounted. This will give a greater change of intercepting missles in areas without human population or the ability to take them out before the warhead is armed. I'm guessing the range on a laser this powerfull might be close to line of sight wich might make interception even better. I think this is great news for all.

    8. Re:let's just get this out of the way: by pedroloco · · Score: 2, Informative

      Some people used to think that making ICBM's reflective, or twirl in flight, would solve things...but it's kind of like pirouetting in front of a 50 caliber rifle.

      Did you lift that analogy from Tom Clancy's book Cardinal of the Kremlin? Or did he lift it from the same source you did?

    9. Re:let's just get this out of the way: by UnapprovedThought · · Score: 2, Funny

      General: How'd the flight test go, Colonel?
      Colonel: Well, we got some good news and some bad news, sir.
      General: OK, what are the bad news?
      Colonel: Due to some unexpected turbulence, we missed the target and had a friendly fire incident.
      General: *Curse*
      General: And the good news?
      Colonel: The good news are that your car rental's been upgraded to a convertible without touching the budget.

    10. Re:let's just get this out of the way: by ajnsue · · Score: 2, Funny

      Klatu nik baratu? What they hell you talking about boy fire them missles!

    11. Re:let's just get this out of the way: by Mysticalfruit · · Score: 2, Informative

      Actually the F-22 Raptor already has a laser system that's been designed for it and [I think it] fits in place of bombbay doors.

      The laser is ultraviolet, thus it would allow an F22 to loiter in an area and attack ground targetes (Geneva conventions state that we can't attack people with lasers) However, we can cut the truck they're driving in half and thus detonating the fuel tank...

      --
      Yes Francis, the world has gone crazy.
    12. Re:let's just get this out of the way: by DimJim · · Score: 2, Informative

      Actually F16 fighter planes do not carry phoenix missiles. F14 is the only type that does.

      --
      Draconian 'd'RM: Achtung! You vill sit in ze CHAIR ven you read my book, NOT ON ZE COUCH!!! -AC-
  2. Great... by Seoulstriker · · Score: 2, Funny

    Now they just need to be mounted on those damn sharks.

    --
    I am defenseless. Use your button. Mod me down with all of your hatred.
    1. Re:Great... by Tribbin · · Score: 3, Informative

      Dr. Evil: You know, I have one simple request. And that is to have sharks with frickin' laser beams attached to their heads! Now evidently my cycloptic colleague informs me that that cannot be done. Ah, would you remind me what I pay you people for, honestly? Throw me a bone here! What do we have?

      Number Two: Sea Bass.

      Dr. Evil: [pause] Right.

      Number Two: They're mutated sea bass.

      Dr. Evil: Are they ill tempered?

      Number Two: Absolutely.

      Dr. Evil: Oh well, that's a start.

      --
      If you mod this up, your slashdot background will turn into a beautiful sunset!
    2. Re:Great... by CharlieG · · Score: 2, Informative

      According to someone I know who worked on the orignal "Star Wars" research, he says the big mistake everyone makes is that they thing that the high power lasers melt things - he said "Nope, they are actually kinetic weapons - says you put enough energy in a laser beam (think high power pulsed) the slug of energy acts like a kinetic impact"

      --
      -- 73 de KG2V For the Children - RKBA! "You are what you do when it counts" - the Masso
  3. Will they make noise in space? by spun · · Score: 4, Funny

    Once we get them into space, will they make roaring, whooshing noises and manuever just like they did in atmosphere? 'Cause otherwise, forget about it.

    --
    - None can love freedom heartily, but good men; the rest love not freedom, but license. -- John Milton
    1. Re:Will they make noise in space? by zxnos · · Score: 2, Interesting

      true on the roaring and whooshing... ...but doesnt it make sense to have them manuever in space the same as in the atmosphere? that way a pilot doesnt have to think about what medium he is in. i think it would be easier for the pilot if both are the same.

      --
      always mosh clockwise
    2. Re:Will they make noise in space? by blincoln · · Score: 2, Insightful

      but doesnt it make sense to have them manuever in space the same as in the atmosphere? that way a pilot doesnt have to think about what medium he is in. i think it would be easier for the pilot if both are the same.

      It would take a ludicrous amount of fuel to make a spacecraft fly like a jet fighter.

      It would also prevent the pilot from doing many maneuvers that can only be performed in space.

      Of course, by the time we have genuine spacefighters, piloted fightercraft will be a thing of the distant past. Remote-piloted and autonomous vehicles can perform many feats that would kill a pilot.

      Movies that have piloted spacefighters are like the old sci-fi books where computers still use vacuum tubes. It's storytelling based on what we're familiar with, and because piloted fighters give us a sense of chivalry and danger.

      Maybe in the FAR distant future, if the human race survives and advances enough, it might be technically possible to have piloted craft like in Greg Bear's Anvil of Stars, where they're protected from G-forces by advanced physics, and their mental functions are sped up by other systems that create "virtual neurons" closer together than the real ones. But it will still be more practical to use AI systems designed for that task.

      --
      "...always new atoms but always doing the same dance, remembering what the dance was yesterday." -Richard Feynman
    3. Re:Will they make noise in space? by dzfoo · · Score: 2, Funny

      >> Once we get them into space, will they make roaring, whooshing noises

      No, its more like "BWEEOOP!".

              -dZ.

      --
      Carol vs. Ghost
      ...Can you save Christmas?
  4. HELLADS? by Anakron · · Score: 3, Interesting

    The High Energy Laser Area Defense System
    So what's the other L for?
    I swear, the military just loves acronyms, whether they make sense or not! And what's an area defense system?

    --
    There are 11 types of people. Those who understand binary, those who don't and those who are sick of this lame joke.
    1. Re:HELLADS? by Stonehand · · Score: 2, Informative

      Area defense = defense of a whole area. It doesn't mean that it's firing massively wide beams designed to fry whole areas (well, volumes) of space.

      --
      Only the dead have seen the end of war.
    2. Re:HELLADS? by Zocalo · · Score: 4, Informative
      So what's the other L for?

      "Liquid". HELLADS actually stands for "High Energy Liquid Laser Area Defense System", despite what Yahoo! would have you believe. Maybe Yahoo! are employing ex-Slashdot editors now; they do seem to copy everything else Google does... ;)

      --
      UNIX? They're not even circumcised! Savages!
    3. Re:HELLADS? by deglr6328 · · Score: 5, Informative

      FYI this is NOT a liquid laser. The term "liquid laser" is barely ever used in laser research and when it is, its used to referr to DYE lasers which are absolutely not what is being discussed here. It could concievably be used to describe a chemical laser where the chemicals are liquid before being reacted to lase but this would be incorrect because lasers are typically classified based on the phase of the medium which undergoes lasing. In the case of the chemical laser the lasing medium is a plasma formed in a reaction chamber by the mixed, previously liquid, chemicals. It's a gas laser. From what I can tell here though, neither of these things is what is being proposed for the HELLADS system. It looks like what they're trying to do is match the index of refraction of a cooling liquid to the index of refraction of the slabs of lasing material in a SOLID STATE laser such as Nd:glass. Thereby allowing the efficient removal of heat from the laser material while it is firing and while also preserving the quality of the beam. I would be willing to bet they are looking at using ytterbium-doped strontium fluoroapatite (Yb:S-FAP) slabs immersed in a very dense transparent flowing liquid (perhaps even a molten salt like NaNO3) which is optically pumped by specifically tuned solid state diode lasers.

      --
      - "Hear that?! The percolations are imminent! Cease your ingress!"
  5. 4 out of 5 swinging dicks recommend... by xxxJonBoyxxx · · Score: 5, Insightful

    4 out of 5 swinging dicks recommend more steel plates for their humvees, not another toy for the flyboys.

    1. Re:4 out of 5 swinging dicks recommend... by susano_otter · · Score: 3, Insightful

      Look at it this way: The military is a massive institution, that takes decades to complete any major change in its thinking and acting (this is as it should be, I think).

      Today's Humvee armor problem stems from the parameters for the Humvee project, which were laid down fifteen or more years ago.

      Since then, the nature of battle has changed dramatically, and the kinds of missions the military now faces aren't really ideally suited to the Humvee project the military had already committed to.

      So in another ten years, you'll be able to recycle the same old schtick: "4 out of 5 swinging dicks say more lasers for the jets, and less armor for the groundpounders".

      Of course, ten years from now that schtick won't be any more relevant or insightful or instructive than it is today, but hey, don't be discouraged: Not everybody can change the way they think and act over time the way the military can. Follow your heart, and I'm sure you will achieve your dream!

      --

      Any sufficiently well-organized community is indistinguishable from Government.

    2. Re:4 out of 5 swinging dicks recommend... by CrowScape · · Score: 4, Insightful

      High energy lasers have very promising defensive purposes, such as being able to shoot down/burn up mortar and artilery fire as well as RPGs. You know, many of the things that the underdogs like to use in asymetric warfare? Being able to mount these things onto a fighter is a good step towards getting these things on the ground and in the field.

      --
      common sense: noun
      What those who are ignorant of the subject matter think; usually wrong.
    3. Re:4 out of 5 swinging dicks recommend... by CrowScape · · Score: 3, Insightful

      So, if you can't develop a system that solves all your problems, it's useless? Man, you must curl up in a little ball in the morning, unable to function because you can't find that one tool that will brush your teeth and wipe your ass.

      --
      common sense: noun
      What those who are ignorant of the subject matter think; usually wrong.
    4. Re:4 out of 5 swinging dicks recommend... by shmlco · · Score: 2, Insightful

      We had to adapt to win the Korean War, and the War In Vietnam, and... ah.... wait.

      --
      Any sect, cult, or religion will legislate its creed into law if it acquires the political power to do so.
    5. Re:4 out of 5 swinging dicks recommend... by CharlieG · · Score: 4, Insightful

      Actually, at this point, almost all the Humvees are "Up armored", the problem is, as usual, this has lead to a response - less ak47 type ambushes, more IEDs. And as other, even heavier armored vehicles have shown up, the IEDs have gotten bigger - They refer to them as N-bangers where N = 1 or more - 1-banger is one shell/mine etc, 2 is 2 etc. The reports that I'm hearing say they have mostly given up on 1 bangers, and 2,3,4s are the most common

      Action leads to reaction, and no matter HOW much armor you put on something, you can always penetrate it - just takes a bigger bang. The say that some of the bigger IEDs actually pick something like a APC and throw them a couple of hundred yards, and up-armored HUMVEES just get blown to bits

      --
      -- 73 de KG2V For the Children - RKBA! "You are what you do when it counts" - the Masso
    6. Re:4 out of 5 swinging dicks recommend... by afidel · · Score: 2, Informative

      Yep, the fact that the 14 Ohio marines that were killed earlier this month were in an Armored Amphibious Vehicle should show you that a Humvee, no matter how uparmored, stands no chance against the bombs being employed.

      --
      There are 4 boxes to use in the defense of liberty: soap, ballot, jury, ammo. Use in that order. Starting now.
    7. Re:4 out of 5 swinging dicks recommend... by TomSawyer · · Score: 2, Funny
      So what are your qualifications, anyway?

      Dude, he's totally got xxx in front of his name and after. He's a total bad ass and you sir are out matched.

      --
      If you disagree then it must be overrated, redundant or trolling.
  6. Nice, by seaniqua · · Score: 4, Funny

    But will it cook a Jiffy Pop container 20' in diameter?

    --
    That's right, I read at +2 and post at +1. Not even I care what I have to say.
    1. Re:Nice, by shmlco · · Score: 4, Funny

      Only if you can also come up with a spinning phase-conjugate mirror AND manage to switch the targeting computer's rom.

      --
      Any sect, cult, or religion will legislate its creed into law if it acquires the political power to do so.
    2. Re:Nice, by Martin+Blank · · Score: 2, Informative

      The system will probably work like the ABL. A low-power targeting laser makes the first contact with the target. This allows for target correction and ionization of a channel for the main beam to use. Once the target is confirmed (probably a fraction of a second), the main laser fires, with virtually no chance for the target to deviate.

      Depending on its uses and where it's aimed, there's a good chance that the beam will simply fire off hamrlessly into space, presuming that enough of it makes it through the atmosphere to be able to do damage. If it misses and hits the ground or sea... Well, that could be problematic, depending on what it hits. Flash fires, steam explosions, and serious sunburns are just a few things that I can think of.

      --
      You can never go home again... but I guess you can shop there.
    3. Re:Nice, by iamlucky13 · · Score: 2, Informative

      Yep. I think they call it "salvage fused." It always kills me when I see a movie where the missile flies circles after an airplane. If it doesn't hit on the first pass, it'll never have enough energy for a second chance, so rather than risk it coming down on friendly or civillian heads, modern missiles self-destruct. I think the term actually comes from the idea that you don't want the enemy to be able to salvage the weapon for their own use or study.

      Incidentally, the ancient Romans did the same thing. The heads of their pilae were made of soft iron so they would bend when the hit anything hard. That way the enemy couldn't pick them up and throw them back if they missed.

  7. Re:Forbidden? by PoitNarf · · Score: 5, Informative

    I just did some quick searching and found only this on laser weaponry in the Geneva Convention:

    "Protocol IV on Blinding Laser Weapons prohibits the use of laser weapons specifically designed to cause permanent blindness to the naked eye (or to the eye with corrective eyesight devices). Countries that are party to the Convention and Protocols will not transfer such weapons to any country or other entity."

    So I guess to conform to the Geneva Convention, the lasers will just require the same stickers that they put on childrens water guns: "Point Away From Face"

    --

    "0101100101? It's just jibberish. *looks in mirror, gasps* 1010011010@!? AHHHHHH!!"
  8. Power Source? by CorporalKlinger · · Score: 2, Insightful

    They can put these things up there, but how will they really be powered? 15kW of energy is a lot to expect from any sort of battery system, unless the weapon can only be used once... Next they'll want to strap a nuclear reactor on the fighter planes to power the next version of the laser (150kW). And if they do have a way to power this for multiple shots, why isn't that same energy storage technology being used in my damn car so I don't have to pay $3 a gallon to fill up the tank?

    1. Re:Power Source? by Anonymous Coward · · Score: 2, Informative

      It's not the power, it's the energy. In 240 micro seconds, 15KW consumes the same energy as a 3V LED does in 60 seconds (assuming 20mA). What isn't stated is how long the laser will run.

    2. Re:Power Source? by ShadyG · · Score: 2, Funny

      It's just a wild guess, but maybe you can have one if you also have security clearance, $47 million, and room for a refrigerator in your car.

    3. Re:Power Source? by syukton · · Score: 5, Interesting

      150 kilowatts is 201 horsepower. (conversion link; 1 horsepower = approximately 745.7 watts)

      F-16 Aircraft use a powerplant ranging from 15,000 to 19,000 (28,000 to 32,000 with afterburner) pounds force of thrust.

      To convert between thrust and horsepower, use this formula: [(Thrust in lbs x Speed in mph) / 550] x 1.47 = horsepower (formula link)

      So let's assume an airspeed of 400 miles per hour.
      Without afterburners:
      Low: ((15,000 * 400) / 550) * 1.47 = 16,036.3636
      High: ((19,000 * 400) / 550) * 1.47 = 20,312.7273
      And with afterburners:
      Low: ((28,000 * 400) / 550) * 1.47 = 29,934.5455
      High: ((32,000 * 400) / 550) * 1.47 = 34,210.9091

      So let's say about 18,000 horsepower on average regularly and 32,000 horsepower on average with afterburners.

      A 150 kilowatt laser requires 1.1% of the total engine power produced (on average) by an F-16 turbofan engine, and 0.6% of the engine's power with afterburners engaged.

      In other words, I think they've got all the power they need.

      --
      Reinvent the wheel only at either a lower cost, greater effectiveness, or your own personal enrichment and satisfaction.
    4. Re:Power Source? by topside420 · · Score: 2, Informative

      Keep in mind, the engine power % you mention is to keep the laser ON -indefinitly-. The laser will only need that 1.1% of engine power for less than a second to power one pulse from the laser. So, as you can imagine, this laser could be kept on indefinitly with no considerable loss of engine power for flight.

    5. Re:Power Source? by t35t0r · · Score: 2, Informative

      You are uninformed. 150W is the output power. In order to get the lasing medium to actually *LASE* requires lots more input power than 150W. In addition to hit a target miles away and put 150W of power on it for any period of time requires even more input power. Depending on the lasing medium and what sort of laser it actually is (pumped, double pumped, etc) they will require considerably much more power than 150W.

    6. Re:Power Source? by zoltamatron · · Score: 2, Informative

      Okay......your math here sounds good, but I think that you overlook a few points.

      Your formula uses an arbitrary value of 400mph to get the horsepower from. The top speed of an F-16 is mach 2, or about 1524mph at sea level. Less at high altitudes. Using this speed we would get almost four times the power output.

      However, given the nature of a jet engine, its thrust will decrease as airspeed increases, since it's thrust is based on throwing air out a nozzle. So we can assume that the engine will not be putting out maximum thrust at maximum speed.

      From the Pratt and Whitney site, the thrust range of an F100-PW-220 engine is 23,770 - 29,160 lbs of force. Assuming (and this is a big assumption) that at top speed the engine is putting out minimum thrust, then solving the equation we get:

      (23,770 x 1524)/550 x 1.47 = 96,821

      So we get 96,821 HP at top speed. I do find it hard to believe that this much power is needed to overcome drag on an f-16 at mach 2, but who knows.....

      -z
      --
      Tolerance does not tolerate intolerance, or hypocrisy.
  9. Re:Forbidden? by EvilMonkeySlayer · · Score: 3, Informative

    I don't think the Geneva convention includes energy weapons, it dates back to pre-world war 2 I believe.

    You may be thinking about weapons in space, if I remember correctly the USA and Russia agreed not to militarise space, which essentially meant no orbitting satellites with either lasers on them or nuclear missiles. (it may have taken kinetic weapons into account too, i'm not sure on that)

  10. Re:Forbidden? by tjw · · Score: 4, Insightful
    Weren't they forbidden by the Geneva convention?
    They're probably only for firing at "unlawful combatants", so it's OK.
    --

    XJS*C4JDBQADN1.NSBN3*2IDNEN*GTUBE-STANDARD-ANTI-UB E-TEST-EMAIL*C.34X
  11. Missile defense by robogun · · Score: 2, Funny

    I can see the headline now: Air Force "reflects" on decision to purchase sexy new laser, after a test backfires when attempting to shoot down a mirrored missile...

    & yes, defending against laser is that simple.

    1. Re:Missile defense by Anonymous Coward · · Score: 4, Informative

      Sorry, defending against a laser isn't that simple.

      You ever felt how hot a mirror gets in sunlight? Well, a lot of the light that hits it is converted to heat. Even a highly mirrored surface would get incredibly hot under a 150Kw laser beam. A missle is essentially a flying tube under a lot of stress, so a small non-uniform structural weakness would have the capability to tear it apart if it was travelling at high speed....

    2. Re:Missile defense by Spudley · · Score: 2, Funny

      I can see the headline now: Air Force "reflects" on decision to purchase sexy new laser, after a test backfires when attempting to shoot down a mirrored missile...

      & yes, defending against laser is that simple.


      So how come Queen Amidala's ship had such difficulty getting past the blockade?

      --
      (Spudley Strikes Again!)
    3. Re:Missile defense by rgmoore · · Score: 5, Informative
      & yes, defending against laser is that simple.

      Do you actually have some evidence to back that claim up? I thought not. The people who come up with ideas like military lasers are actually smart enough to have thought of things like mirrored surfaces on enemy missiles. They wouldn't have put all that time, effort, and money into the project if it could be stopped by such a simple countermeasure.

      Common mirrors are not 100% efficient; they absorb some fraction of the light rather than reflecting it. The actual reflecting layer is also quite thin. The small amount of absorbance is enough that a high energy laser will destroy an ordinary mirror very quickly, at which point the remaining energy is absorbed efficiently. The kind of extremely efficient mirrors needed for ultra-high power lasers are fantastically expensive and fragile enough that it's hopelessly impractical to try putting one on military gear.

      --

      There's no point in questioning authority if you aren't going to listen to the answers.

    4. Re:Missile defense by j.+andrew+rogers · · Score: 4, Informative
      No, you cannot defend a high-power laser by making a shiny missile. The whole point of using lasers of sufficient power is that even if you had a missile that was 90% reflective in infrared (which is at the upper end of what one could reasonably do for a missile), the power level is high enough that the last 10% of absorption is enough to ablate that lovely mirror finish and eat the missile. Note also, that most missiles guidance systems operate in the same part of the spectrum as the laser, which would make the pointy end have a very low reflectance by definition.

      The reason for using very high-power lasers is the same they prefer to use hyper-kinetic missiles: at some energy density, no plausible molecular material has sufficient bond strength to withstand it, effectively obsoleting armor.

  12. Re:Forbidden? by DoubleD · · Score: 5, Informative
    No.

    Article 1 of the Geneva Convention's Protocol on Blinding Laser Weapons has laudable aims. It states, "It is prohibited to employ laser weapons specifically designed, as their sole combat function or as one of their combat functions, to cause permanent blindness to unenhanced vision."

    But Article 3 opens the door to lasers that blind so long as that was not their aim. It states: "Blinding as an incidental or collateral effect of the legitimate military employment of laser systems, including laser systems used against optical equipment, is not covered by the prohibition of this Protocol".


    source http://www.newscientist.com/article.ns?id=dn2585
    --
    "He is no fool who gives what he cannot keep in order to gain what he cannot lose."
  13. Link to DARPA by Stanistani · · Score: 3, Informative
    1. Re:Link to DARPA by Stanistani · · Score: 3, Informative

      Google is your friend...

      From a DARPA PDF:
      "To help arm tactical platforms, the High Energy Liquid Laser Area Defense System (HELLADS)
      program is developing a new high energy laser (HEL) tactical weapon system whose unique
      cooling system might allow the system to be 10 times lighter, significantly smaller, and
      approximately half the cost of current developmental HEL systems.
      The HELLADS design goal of less than 5 kilograms per kilowatt would enable, for the first time,
      high energy lasers that could be integrated into several air and ground tactical platforms,
      including unmanned combat armed rotorcraft (UCAR), UCAV, Predator B, the F/A-18, and
      future ground combat systems. HELLADS could protect fixed installations or population centers
      from attack, patrol a border, or patrol a demilitarized zone with the capability to react to hostile
      actions and engage tactical missiles, rockets, or artillery at the speed of light."

      This is from 2003, so this has been steeping for a while... is it soup yet?

  14. SO will they go by fromtheblueline · · Score: 5, Funny

    Pew pew or Brzzap?

  15. Compact? by Dan+Morenus · · Score: 2, Insightful

    I dunno, something the size of "a large fridge" seems pretty bulky to strap to a fighter. Seems more suitable for a bomber somehow.

    --
    -- Conserve binary trees; recycle your email. --
    1. Re:Compact? by Elminst · · Score: 3, Insightful

      Not really.

      It'd be smaller than a 370 gallon external fuel pod.

      No one said it was gonna be shaped like a cement block.

      --
      No unauthorized use. Trespassers will be shot. Survivors will be shot again.
  16. Re:Forbidden? by forkazoo · · Score: 4, Insightful

    No, to conform to the geneva convention, it just has to be powerful enough to kill you outright. The issue is blinding lasers. They would be classified as maiming weapons, and thus not really cricket. If it blows your head clear off, then it's all fine and dandy.

  17. A fridge is still a Fridge by JamJam · · Score: 2, Funny

    From TFA:
    The High Energy Laser Area Defense System (HELLADS)...will weigh just 750 kg (1,650 lb) and measures the size of a large fridge... But the Pentagon's Defense Advanced Research Projects Agency reckons it has solved the problem by merging liquid and solid state lasers to cut the size and weight by "an order of magnitude,"
    Great, does that mean it'll eventually get to the size of mini-bar fridge?

  18. ouch by pin_gween · · Score: 2, Interesting

    a 150-kW beam and capable of knocking down a missile will be ready by 2007

    Hmmm, I'm torn.

    On one hand, IF it hits its intended target, that is one less "consumable" missile defense that has to be manufactured and paid for--> not a "one and done" defense.

    On the other, it's one thing when stray bullets strafe a school like in New Jersey, but oh my, imagine the holes this could leave.

    --
    Ignorance is not a crime; neither should it be a way of life

    Congress control $ = inmates run the asylum
  19. Re:Forbidden? by Chrontius · · Score: 2, Funny

    No, we're going to see lots of brighly colored targets for optically-guided cruise missiles.

  20. Battery system? by Vengeance · · Score: 2, Informative

    How about a honkin' big jet turbine engine?

    Actually, I seem to recall reading (albeit in a 'Popular Mechanics' or some such light fare) about the larger all-liquid versions. These things apparently derived their power from a chemical reaction, the reactants being stored in big tanks. I believe that was a big reason for needing a 747-sized platform.

    --
    It was a joke! When you give me that look it was a joke.
  21. Re:Top Gun by Nom+du+Keyboard · · Score: 5, Funny
    I'm too close for Missles Goose, I'm switching to Lasers!

    I'm too close for lasers, switching to Scientology.

    Hello Mr. Enemy Pilot, may I Audit you?

    --
    "It's the height of ridiculousness to say for those 9 lines you get hundreds of millions."
  22. measure your fridge from the air? by phil4 · · Score: 5, Funny

    and measures the size of a large fridge. Cool! Lasers have been used for measurement before, but I bet this is the first time the military has been able to measure your fridge in your kitchen from 20,000 feet. The small hole in the kitchen ceiling is a small price to pay for this protection from oversize fridges.

    1. Re:measure your fridge from the air? by hamsterspeed · · Score: 2, Funny

      As has been observed elsewhere, while measuring your fridge the device can simultaneously heat a very large, specially designed jiffy pop enclosure. Versatile!

      --
      pants
  23. JSF by wiredlogic · · Score: 2, Informative

    Some versions of the JSF will have a laser system installed in the empty cavity used for the second engine in the VSTOL variant. The last thing I read on this suggested that the firing rate would be once every 30 seconds due to cooling requirements. I doubt any F-16 based system mounted on external hard points would be any better.

    --
    I am becoming gerund, destroyer of verbs.
  24. Re:Forbidden? by seven+of+five · · Score: 2, Informative

    Nothing is perfectly reflective, and if you cover yourself with a 99% reflective surface you're still going to couple with a LOT of energy. Maybe you won't be vaporized a la War of the Worlds, but you'll be burned pretty bad.

  25. Re:Top Gun by Tackhead · · Score: 2, Funny
    > I'm too close for Missles Goose, I'm switching to Lasers!
    > I'm too close for lasers, switching to Scientology.
    > Hello Mr. Enemy Pilot, may I Audit you?

    Maveric: You don't know the history of frickin' lasers on sharks' heads. I do!
    Goose: We regret to inform you that your son is broke because he is stupid.

  26. Re:Forbidden? by aonaran · · Score: 2, Insightful

    The lasers use mirrors. The mirrors in the laser have to be able to withstand the energy of the laser. Therefore there IS a mirror that can reflect the laser without absorbing enough of it to do damage.

  27. Anti-satellite? by Johnboi+Waltune · · Score: 4, Interesting
    Can it knock out a satellite?

    F-16 operating ceiling = 15.240 kilometers

    Minimum LEO satellite altitude = about 150 kilometers

    I couldn't find any information about the range of the HELLADS system; that information is probably classified. However, TFA claims there will be a 150 kilowatt version of the laser by 2007. Any laser experts know if that power of laser can take out a target 135 kilometers away? Is the idea even feasible?

    --
    "The advanced societies of the future will be driven by competing systems of psychopathology." -JG Ballard
    1. Re:Anti-satellite? by imsabbel · · Score: 5, Informative

      Very doubtful.
      The f 16 will be above of >90% of the athmosphere at the ceiling hight, so absorbtion in the atmosphere isnt that big of a problem. But divergence is.
      No matter what movies will make you believe, lasers arent perfectly parallel beams of light.
      Not to go too much into the details, a laser needs to have a large diameter to have a low divergence (hence the used large telecopes for the moon reflection experiments: a 5m laser diameter here will be a few km on the moon, wile a few mm here will be 100s of km there ...)

      I cant see how a jet-fighter mounted version would fullfill the requirements. The lens crossection has to be small enough not to fuck up the aerodynamics of the supersonic plane, and you cant just put a streamlines glasshood in front of hit because of the high pulse energies...

      So you could get some light onto a satellite, but not enough to knock it out...
      Otoh, I think it could be strong enough to permanently blind the CCDs of enemy spy-sats...

      --
      HI O WISE PRINCE. WHT TOOK U SO DAM LONG?
    2. Re:Anti-satellite? by chrisfez · · Score: 2, Interesting

      I work on a very similar program (Airborne Laser) which has a megawatt-class laser on a 747. I'm just an intern, so I don't know all the classified numbers, but I've been told the range is over 100 km, which could make it possible to reach that high/far. There are a lot of adaptive optics to deal with problems of beam divergence and allow it that range. Shooting upwards also alleviates the amount of absorption since there's less crap the higher you go up. And yes, the laser could theoretically aim upwards, it can rotate 360 degrees.

      Kinda funny actually, my manager and advisor have been gone all day since they're also working on HELLADS. Today was their big DARPA design review.

  28. That Star Wars Feel by fm6 · · Score: 2, Insightful
    Now all we need to do is make fighter jets space worthy for that true Star Wars feel.
    In Star Wars, fighters turn and bank as if they had working airfoils, instead of being in a vacuum. So to get that "Star Wars Feel" you have to stay in atmosphere!
  29. Re:Forbidden? by aonaran · · Score: 2, Insightful

    By the same token the other big SciFi myth of the 80's ...the acid spitting alien that creates an acid that can burn through anything in seconds doesn't work either... how does the alien survive if it's acid burns trough anything (including aliens of the same species)?

  30. what if it misses its target? by Sebastopol · · Score: 2, Insightful

    will the pulses keep travelling in a straight line and vaporize whatever is in front of them on earth?

    i mean, the laser has to be powerful enough to work at a distance of several km, and a plane is only several km off the ground. normally if a missile does not hit its target it detonates in midair (raining debris on the ground), but this seems a bit more problematic.

    --
    https://www.accountkiller.com/removal-requested
    1. Re:what if it misses its target? by Tlosk · · Score: 2, Informative

      "A plasma torch moving at mach 2+ is still a plasma torch."

      Nice armchair logic. So when is a plasma torch no longer a plasma torch? When it no longer has the characteristics of a plasma torch. If you divide the energy output by the distance it covers while going mach 2 you get a really small amount of energy per square inch that doesn't last hardly any time at all for any given patch. Could you construct something that would still cause damage? Sure, but that would be orders of magnitude greater than the jet mounted laser described here.

      This is the same reason you can whisk your fingers over an open flame and not feel anything but slight warmth. Hold it there for a second though and your skin will start to blister and burn.

      But of course your suggested speed of mach2 is only if it happens to be shooting straight down, any angle and the speed of the laser on whatever it hits will be much slower, although the increased distance mitigates the slower speed for the most part.

    2. Re:what if it misses its target? by tmortn · · Score: 2, Insightful

      Yes but that means a distinct focus on a point. If the firing vehicle were stationary then any miss would remain focused on a single point in front or behind the intended target. Other wise the distance and changing angles to intercept will dictate that a miss will wonder around with the intended focus point as the pivot, and in this case even the intended target is in motion so the pivot point changes as well.

        At high angles the moving beam at the actual impact point (a miss) may be well ABOVE mach 2. At anyrate once you start talking miles a single degree of divergence is going to move the end of the beam a fair distance. IE firing plane is one mile away at 10,000 ft altitude firing at a target one mile away at 5000 ft altitude. Now as they approach or manouver the beam will be continually redirected to intersect the target. But the potential zone for the beam to fall on the ground will continually vary, potentially by a great deal as at high intercepts rates of closeure you can easily have 1mile a second rates with mach 2 capable fighters. but even at lower speeds its doubtfull you will have any specific foucus on a given point other than around the intended target. At low oblique angles to the ground it wouldn't hit for a significant distance anyway and if you are engaging at a relative max of the lethal range (adviseable... ie shoot them as soon as you can) then there will be a minimal distance for the beam to travel that it could do damage even if it were focused, much less if it is wondering all over the place.

      Anyway I am sure if you really wanted to you could work a few geometry examples with planes various distances apart where the firing aircraft has various altitude advantages over the target (otherwise its angled into space if it misses) using a suitable kill radius. As it it expands the time on target will need to be greater to account for atmospheric absorbtion. Anyway take that 150kw number and length of a single fireing sequence. Then come up with a time to kill/maim a human then account for percentage of beam that would impact the target, beam divergence etc... over distance and figure out what the time on target would be in your various engagement scenarios and time on target in event of a miss. Think your going to find its simply not much of an issue relative to already problematic targeting mishaps.

      --
      I don't ask you to be me. I only ask you not expect me to be you.
  31. Re:Forbidden? by Sebastopol · · Score: 4, Interesting

    To quote a friend from the Israeli army that is sort-of relevant:

    "M16's are not designed to kill, they are designed to maim, because a wounder soldier is more of a liability to the enemy than a dead one."

    But we still use M16s... odd... (well, WE use M2's or something like that)

    --
    https://www.accountkiller.com/removal-requested
  32. Re:Forbidden? by tekiegreg · · Score: 2, Insightful

    Well yeah, but one can reason that If your head is blown off, than by law of unintended consequences you'll be rendered blind? Can you be dead and blind at the same time? Granted the inability to see properly (aka blindness) is inherent in most dead people. Or must one be living in order to be blind?

    --
    ...in bed
  33. Cool! by Ancient_Hacker · · Score: 2, Interesting

    Cool if it works. But how does the laser know there's a missle on the way? And how does it keep focused on it while the pilot is trying to pull a 9-G turn? It would take gonads of neutronium to maintain a straight course while the missle is heading your way.

  34. Re:Forbidden? by Zzootnik · · Score: 2, Insightful

    The same way we can Mix together steel-strength epoxy. In 2 parts. If the alien had 2 separate glands that each spat out the components of a super-acid, then he'd just have to worry about rotten teeth! (eeeeewwwwww.....)
    Maybe something else, though-- An Immune system. Our own immune system will attack anything that's not us. It doesn't seem like too much of a stretch to think that an aliens 'white-blood-cells' or equivalent would also do so...even if you toss a mouthfull of the little troopers at something else-- and we're back to 'eeeewwwww.....'

    --
    Sig currently under construction. Mind the gap....
  35. Re:Forbidden? by Stonehand · · Score: 2, Insightful

    It's easier to keep the mirror clean and highly reflective inside the laser, than outside and on a battlefield.

    --
    Only the dead have seen the end of war.
  36. Re:Forbidden? by MrVelvet · · Score: 5, Funny

    Yes one must be fucking living to be blind. Just like telling no tales, the dead don't see shit..

  37. Re:Forbidden? by Rei · · Score: 4, Interesting

    For all of the people who criticize your "mirrors" proposal: ablatives.

    You can even combine defensive concepts. Missiles being relatively small, relatively mass produced items, processes that normally cost a lot can be proportionally cheap compared to the cost of the guidance systems, propulsion system, and handling costs. So, for a multipart defensive system:

      * A "shiny" ablative system on the nosecap and leading edge fins - perhaps something as simple as silicon-impregnated cork mixed with aluminum, silver, or gold (better at IR) powder.

      * The nosecap and leading-edge fins made of silvered (again, with a good visible/IR reflecting material) RCC (again, since they're small and the process to make them can be automated, the costs shouldn't unreasonable). RCC can take extreme temperatures without becoming ductile.

      * Other parts of the body made out of unpainted, shiny aluminum or a silvered surface.

    It's less extreme than other defensive mechanisms used for various kinds missiles - MIRVed warheads, anti-ship missiles that hug the water and then take a sharp climb and descent, etc. And it's certainly simpler than many of the counter-countermeasure methods used by modern missiles.

    --
    Are there any deer in the theater tonight? Get 'em up against the wall.
  38. So what if it does? by NotQuiteReal · · Score: 3, Insightful
    Where do you think non-laser anti-missle ordinance ends up if it misses?

    --
    This issue is a bit more complicated than you think.
  39. 747 ABL by LaTechTech · · Score: 2, Informative

    This story reminds me of the ABL...

    Latest article I could dig up:
    http://www.kansas.com/mld/eagle/business/industrie s/aviation/12380334.htm

    Website about the ABL:
    http://www.airforce-technology.com/projects/abl/

    --
    I want my! I want my! I want my Eee PC!
  40. nature of battle by ucblockhead · · Score: 2, Insightful

    So you're saying that in prior wars, the enemy didn't try to blow up vehicles with boobie traps?

    --
    The cake is a pie
  41. Re:Forbidden? by Guysmiley777 · · Score: 2, Insightful

    I think you are thinking of the M-4. http://en.wikipedia.org/wiki/M4_Carbine

    And the 5.56mm round wasn't put into service because it "maims" better than a 7.62mm NATO round, its because for the equivalent weight a soldier can carry more 5.56mm ammo.

    --
    Coding with assembly is like playing with Legos. Coding an application in assembly is like building a car with Legos.
  42. Re:Forbidden? by aaronl · · Score: 4, Informative

    The modern M16 fires a 5.56x45mm NATO round, while the previous generation (original AR15 platform) used a .223 caliber Remington round. The NATO round is a very standard round used in quite a few weapons. The newest weapon in wide use is actually the M4, which is also based on the AR15 platform.

    The M2 is a retired weapon, and pretty much has been since the 60s. The AR15/M16 was adopted to replace it then. It wasn't really accepted until the 80s, however.

    The 5.56mm NATO round is also used by the Steyr AUG, FN FNC, British L85, FAMAS F1, HK23/53, the Israeli SAW and TAR21, several Berettas, and the standard police rifle (Remington 7615). There are quite a few more than those, though, these are just popular.

    The older 7.62mm NATO round was used in a lot of weapons, including the M14, M60, Kar-98k, and the Winchester model 70. It was very popular, as well.

    The M16 isn't designed to maim, but they are easy to do this with. They are rather accurate, have a good range, and don't do full auto. One of the major design goals of the platform was penetration of combat helmets at range. It was designed to kill, like most other modern firearms. The general exception to that rule is for things like PDWs, where the goal is defense of wielder. They will still kill very effectively, but you're aiming a lot less.

  43. "M16s are not designed to kill"... by steve_ellis · · Score: 2, Informative
    I believe that this statement is normally attributed to the SS109 round, not M16s in general.

    The typical claim is that SS109 bullets are dynamically unstable in flesh, though they are stable in flight, so they begin to tumble upon entry, doing lots of damage along the way.

    Personally, I find this claim doubtful, though I have no hard evidence one way or the other.

  44. HELLADS by sl4shd0rk · · Score: 3, Funny

    High Energy Laser Area Defense System

    I think Gasseous Optical Nuetral Area Defense System would have been a better name. What do you suppose would instill more fear in the enemy?

    "Run for your life! The HELLADS are coming!" ...or

    "Run for your life! The GONADS are coming!"

    --
    Join the Slashcott! Feb 10 thru Feb 17!
    1. Re:HELLADS by dascandy · · Score: 2, Interesting

      HELL-ADS?

      I suppose Adblock will get an update sometime soon...

  45. Re:I hope not. Here is why. by Rei · · Score: 4, Funny

    I love your writing style - it reminds me of a Star Wars into crawl.

    Episode IV: A New Lack Of Hope

    It is a period of civil war. Rebel guerrillas, striking from hidden bases, have won their first victory against the PENTAGON. During the battle, Rebel spies managed to steal secret plans to America's ultimate weapon, the MISSILE FRIGATE, an armored aircraft with enough power to destroy an entire peaceful wedding party.

    Pursued by the sinister agents of CONGRESS, Princess Raghad Hussein races home aboard her taxi, custodian to the stolen plans that can dominate her people and change type of tyrannical rule in force in the country.

    --
    Are there any deer in the theater tonight? Get 'em up against the wall.
  46. Re:I hope not. Here is why. by jericho4.0 · · Score: 3, Insightful
    See, the thing about soldiers is; they need to kill people. As a society far removed from our warrior class, that still seems to need to fight wars, we are uncomfortable seeing this perceived callousness. We are collectively shocked when we see photos of US soldiers abusing prisoners, but then demand that those same soldiers find the aggression needed to hunt down humans and kill them. It is impossible for most psyches to kill a human they have not dehumanized.

    The answer to this paradox, IMO, is that war is simply incompatible with civil society.

    --
    "A language that doesn't affect the way you think about programming, is not worth knowing" - Alan Perlis
  47. Re:Forbidden? by StikyPad · · Score: 4, Informative

    It's not the Geneva convention, it's the Hague convention, and the relevant part is "In addition to the prohibitions provided by special Conventions, it is especially forbidden - ... To employ arms, projectiles, or material calculated to cause unnecessary suffering;" http://www.yale.edu/lawweb/avalon/lawofwar/hague04 .htm#art23. Maybe you're thinking of the Geneva Protocol to the Hague Convention which outlaws biological and chemical warfare? The Geneva convention mostly outlines basic minimum treatment of enemy POWs.

  48. Re:liquid vs. chemical vs. solid state. by karoberts · · Score: 2, Informative

    Actually, the biggest problem with chemical lasers is not heat, but the output of the chemical reaction. On THEL (Tactical High Energy Laser); while firing, a plume of NF3 would be emitted, which required all personnel to be at least 5 kilometers away.

    Solid state lasers are the one with heat problems. I.e. with supplied electricity at 10% efficiency, (like wall power), that's 90% heat that has to be put somewhere. So for a 150 kW laser, that amounts to 1350 kW of heat. That is a lot of heat to deal with on a fighter plane.

    I would also like to know what they mean by a "liquid" laser. I used to work in the laser weapon industry, and I have never heard of such a thing.

  49. Re:Top Gun by Oligonicella · · Score: 4, Funny

    "I believe in Intelligent Design. It was all done by Benevolent Space Aliens. How else can you explain Tom Cruise?"

    You call that benevolent?

  50. These Aren't Laser Cannons by jonathanbearak · · Score: 5, Informative

    I went to U.S. Airforce Space Readiness Briefing while I was a Congressional intern this summer.

    Lasers were covered and I had a brief chat with the Air Force representative after the briefing.

    The USAF is sticking lasers in 747's and the army is testing ground-based systems.

    The aircraft-based lasers cannot inflict any physical damage. They are powerful enough to scramble electronics. The goal is to target a missile shortly after it is launched so that its guidance systems fail and the missile lands in the enemy's territory, never reaching its target (us). Their goal is to use this as a powerful deterrent by making it very risky to launch missiles.

    The ground-based systems can inflict physical damage, but are nowhere close to being airborne (they're much too massive). They are, as I was told in July, still "in the lab." (I later saw a full-page ad in "The Hill," a capitol hill newspaper, promoting Lockheed Martin's ground-based laser systems as though they were about ready. I'll trust the USAF officer's discussion more than the corporate advertisement.)

    A key misunderstanding of lasers is in the kind of damage they inflict. Lasers will poke holes through objects but do not cause a target's destruction or explosion -- however, shooting through or over-heating a target's fuel tank will cause an explosion. And of course, to re-emphasize my major point, we don't have airborne laser cannons --- their goal is basically to inflict a kind of EMP-like damage to missiles. I asked about getting these things into UAV's and was told they'd love to do it, but don't expect anything for another 50 years.

  51. Re:I hope not. Here is why. by Liam+Slider · · Score: 3, Insightful
    The answer to this paradox, IMO, is that war is simply incompatible with civil society.
    Problem with this is...not all societies are civil. And if the civil ones give up the means with which to defend themselves, the uncivil ones will destroy them.
  52. So what happens if...? by vyruss000 · · Score: 2, Interesting

    So what happens if the (intended target) missile's surface is extremely reflective?

    (Honest question, I don't know...)

  53. Re:I hope not. Here is why. by rumblin'rabbit · · Score: 4, Funny
    It's bad enough to militarily compete with China, a country where the people outweigh and outnumber Americans ten fold.
    Outnumber definitely. Outweigh never! Americans are the most substantial people on earth, and they've got the jelly rolls to prove it. China simply can't compete in the corpulence compartment, dude.

    By the way, you write like a schizophrenic dope head. Nothing personal. I'm just glad you're in the NRA.

  54. Did Chris Knight invent this? by BBPursell · · Score: 2, Insightful

    Is it just me or do you think that someone was just watching "Real Genius" and turned it into a news story? I mean, they're talking about a "chemical laser, but in solid, not liquid form." (that's a quote from the movie and almost identical to the press release). Also they talk about achieving an "order of magnitude." It's like they turned that one scene into an article. So, I guess after everyone goes out drinking to celebrate, Laslo will convince them to sabotage the whole project...

  55. Re:Forbidden? by GeneralAntilles · · Score: 2, Informative

    I'm sorry, the Mauser Kar98 actually fires 8mm Mauser rounds or 7.92x57mm. Which is essentially ballistically identical to 7.68mm NATO or .30-06 Springfield, though the .30-06 has a little bit better range.

  56. Wow by Anonymous Coward · · Score: 2, Insightful

    This is the most blatant karmawhore I've ever seen on Slashdot.

    "See, the thing about soldiers is, they need to kill people"

    You don't know many soldiers do you? Yours is a fuzzy sentence but it's hard to read it in any other way than that you're saying they have some basic need to kill out of their own volition. Some people do have such a need but those aren't fit for anything really, least of all things military duty (yes they get screened out and denied). Does killing and war break some people? Of course, but extremely few have a "need" to kill, quite the opposite.

    If you have a society that makes every soldier into a "must-kill" caricature of the human beings they are well then the military is truly the least of your problems. The only society I know of where this could be even remotely close to being the case is North Korea (and even there it's unlikely that even if they try to do it they actually succeed).

    Soldiers are human and it doesn't make sense to take the "human" out of them - it is counterproductive and realized to be so by just about everyone associated with any modern military force (which excludes people who think children suicide bombers is a good idea or communism and facism which instigated programs like Hitlerjugend and Red Pioneers).

    "The answer to this paradox, IMO, war is simply incompatible with civil society"

    You're beating Jacques Chirac, the master of the art of speaking without saying anything, at his own game here - are you a politician?

    FYI I'm a former military officer in a european country and I can assure you that my opinon on this is not in the minority.

    1. Re:Wow by jericho4.0 · · Score: 2
      How about "the thing about soldiers is, they are needed to kill people"?

      I didn't mean to suggest that they are themselves are less human or mindless, just that the fact remain that they must kill people, and that that can not be sanitized.

      Infantry use derogatory names for the enemy, they hoot and holler after a kill, and they do lots of other things that people don't like to think about. The OP thought that was inappropriate.

      Yeah, the last bit was pretty trite. How about "There will always be a disconnect between what we want our army to be, and what they have to be to get the job done."?

      --
      "A language that doesn't affect the way you think about programming, is not worth knowing" - Alan Perlis
  57. Re:Forbidden? by Bender0x7D1 · · Score: 2, Informative

    The problem at that range usually isn't the accuracy of the weapon, but the accuracy of the shooter.

    At that kind of range, the only way to hit a small, say 6-12 inch target, is to be in the prone position, with proper hand position, proper eye relief to the scope/sight, and shooting between breaths AND heartbeats.

    I was a Marine designated marksman and even after sniper school the biggest factor was still the shooter and not the accuracy of the weapon. There are VERY few people who possess the skill to shoot to the accuracy of a good "civilian" rifle.

    --
    Reading code is like reading the dictionary - you have to read half of it before you can go back and understand it.
  58. JSF by wired_parrot · · Score: 2, Informative

    I believe the Joint Strike Fighter program was already considering the concept of a laser-mounted weapon. As I recall, the Marine version of the JSF has a large ducted fan in the center to provide VSTOL capability. Since the Air Force and Navy wouldn't be needing that ducted fan, that large space in the middle of the fuselage, with substantial power already provided in place by a driveshaft from the engine, would make a natural selection for implementing a high-energy laser weapon.

  59. Re:I hope not. Here is why. by jericho4.0 · · Score: 3, Informative

    It was badly worded. I meant soldiers are needed to kill, not that they have a need to kill.

    --
    "A language that doesn't affect the way you think about programming, is not worth knowing" - Alan Perlis
  60. Re:I hope not. Here is why. by Dread_ed · · Score: 3, Insightful

    "It is impossible for most psyches to kill a human they have not dehumanized

    You give people alot of credit where none is due. People do not have to dehumanize anyone to kill them. Case in point? Most murders (76%) are comitted by people that know the victim. 22% of the murders in 2002 were comitted by family members.

    Logically it would semm to be much more difficult to "dehumanize" (whatever the $%^@ that referrs to in a psychological sense) someone that you know personally than a total stranger. Seems to me like it takes knowing someone to be able to to kill them, not the other way around.

    --
    When the only tool you have is a claw hammer every problem starts to look like the back of someone's skull.
  61. Re:Forbidden? by twiddlingbits · · Score: 2, Informative

    I won't disagree! But a LOT of people THINK they are. Most deer rifles in these parts (TX) are zeroed at 300 yards but most shots are not taken at that distance and if they are most are misses. I wonder how many hunters know the charts showing the drop of thier shot at each distance with a given bullet and powder weight. I'd be lucky to consistently hit a 6" bullseye at 100 yards unless I was shooting from a bench or maybe the prone position. I'm just not that solid standing.

  62. Re:I hope not. Here is why. by ScentCone · · Score: 2, Insightful

    Torture and violations of human rights didn't happen simply because we taught a our guys to kill

    Right. It happened because some people are assholes, and some of them got jobs with the National Guard, just like some got jobs with the Post Office, and some work the cubicle down the hall from you. Further, some are in the chain of command supervising (or not, in this case) the people pulling guard duty at a prison. If your theory is correct, and this is policy all way from the top, there would be many, many more instances of what we saw in that particularly disfunctional unit. We're talking about a force of a couple hundred thousand people. What's your ratio of losers per thousand people you know? How about of losers per thousand bosses?

    No accountability within the organization? Do you even personally know any people in the armed forces?

    --
    Don't disappoint your bird dog. Go to the range.
  63. Re:I hope not. Here is why. by Anonymous Coward · · Score: 2, Insightful

    The answer to this paradox, IMO, is that war is simply incompatible with civil society.

    Sometimes I think it's just people that are incompatible with civil society.
  64. OT: Re:OTOH by subtropolis · · Score: 2, Insightful

    Everything the US did in Europe in the last century was seen as in the best interests of the US. Many Europeans found that that suited them just fine and have been forever grateful. But to suggest that 'Europe' has any obligation to the US is stupid. There were no US towns firebombed. It wasn't US citizens of being herded into camps outside Tulsa. Tanks didn't obliterate an entire county in Virginia.

    Fact is, 'Europe' knows what all that shit is about. And too many in the US don't have a fucking clue. Tie a yellow ribbon, man.

    As to your question, a powerfull laser could also make air warfare obsolete.

    You do realize that the same was said for gunpowder. And the Gatling gun. And the battleship, aeroplane, tank, gas, a-bomb...

    --
    "Our interests are to see if we can't scale it up to something more exciting," he said.
  65. Re:I hope not. Here is why. by nametaken · · Score: 2, Insightful

    war is simply incompatible with civil society

    Some would say that civil societies won't exist if they're not willing to make war.

  66. Re:Forbidden? by tsotha · · Score: 3, Informative
    Good post. One other thing you might consider too:

    When "Star Wars" was heavily funded in the '80s, the Russians did a little bit of investigation into what it would take to thwart both kinetic vehicles and energy weapons. The actually deployed the Topol-M, which has a lower arc and "jinks" in-flight, makeing it almost impossible to hit with another missile. It takes so long for your interceptor to get to the intercept point that a really tiny course deflection on the part of the target means you'll miss by a hundred miles.

    On the energy side they came up with ablatives (which could be refitted to existing missiles) with, literally, a twist.

    Since you have to hold the laser on a specific spot for some length of time (governed by the power of the laser, atmospherics, etc), you could significantly enhance the survivability of the missile by having it slowly rotate during the launch phase. We're talkin' about a reasonably simple software change that makes it 10x harder to shoot down with a laser.

  67. Re:OTOH by Mac+Degger · · Score: 2, Informative

    "If Europe would pay back the US for are protection, then we could diverta Lot of tax payer money into other things."

    Ah! Now I understand why the US is trying to force it's RI/MPAA and copyright/patent laws on Europe!

    "europe used to be as bad as the middle east."

    True...but that was in the 18th century...about when you had some unrest too.

    "a powerfull laser could also make air warfare obsolete."

    Yup...just like missiles made dogfighting obsolete.

    "[x] is actualy saving lives because it is incredibly more accurate then technology used 60 years ago."

    Hoo-boy, do you have an awfully simplistic and very much incorrect view of the world. History has taught us that technology makes for BLOODIER wars instead of les bloody wars. Look at what happened when the (cross)bow was introduced...or gunpowder, or cannon, or the machinegun. Bodycounts went up, as did civilian casualties.
    And since you mention the last sixty years (conveniently discounting Hiroshima et al), what happened in Korea? Or Vietnam? Or the Balkan? HUGE civilian losses. Now tell me that "A lot of money spent on 'destrustion' is actualy saving lives because it is incredibly more accurate then technology used 60 years ago.".

    That's just bullshit; have the balls to just tell it like it is: a lot of money spent on 'destruction' is actually spent on making technology more accurate so we can kill more people in a shorter span of time.

    --
    -- Waht? Tehr's a preveiw buottn?
  68. Re:Forbidden? by Kjella · · Score: 2, Informative

    No, to conform to the geneva convention, it just has to be powerful enough to kill you outright.

    That's not entirely accurate. A dum dum bullet to my heart would kill me as easily as a FMJ bullet. It just so happens that unless you kill, you're likely to leave a maimed person. Same with lasers, it doesn't matter if the laser is strong enough to kill, if it means someone who managed to duck for cover, or everyone that was around and looked at its reflection go blind. While obviously an ideal that can never be met, the general idea is that weapons do one of two:

    a) Kill, and you are dead
    b) Injure, and you can be healed
    not
    c) Injure, and you are horribly maimed for life

    Maiming weapons are those that do a lot of c), regardless of their purpose or capabilities otherwise. Dumdums are designed to kill, but maim horribly and are thus a maiming weapon. Something designed to fry electronics systems, but collaterally maim people (e.g. give them cancer or something of no military value in combat) is a maiming weapon.

    Kjella

    --
    Live today, because you never know what tomorrow brings
  69. Re:I hope not. Here is why. by Bloke+down+the+pub · · Score: 2, Insightful
    it's rubbish
    Right. That's why the Ancient Greeks managed to defeat the Romans, who in turn beat off the Visigoths. As for the Vikings, they never really got anywhere. Attila the who? Genghis what? Never heard of 'em. Must have been strictly small time bandits.
    --
    It's true I tell you, feller at work's next door neighbour read it in the paper.
  70. Re:Forbidden? by Jim_Callahan · · Score: 2, Interesting

    Hey, I can fully support a policy of "If you're going to kill someone, stop jacking around and kill them". The whole "incapacitate people so that they wander off to die of starvation and a twisted ankle in a ditch" thing just seems rather sloppy.

    --
    ...it's really a sad day for America when we require a goddamn ACT OF CONGRESS to make our DVD players work properly. ~
  71. Re:I hope not. Here is why. by indifferent+children · · Score: 2, Insightful
    I agree that war is part of our basic nature, it is born from the failure of politics.

    Or perhaps war is the inevitable result of the existence of politics. Politics is necessarily competitive and adversarial. The rewards are immense and the most desireable seats are naturally limited (the smallest bodies governing the largest areas have the most concentrated power and the highest prestige).

    Politicians need to be seen to be "doing something". Successfully governing a quiet Utopia will be boring and look easy. Rivals can offer 'more' or 'less' or 'cheaper', and some number of people will fall in line. Good, stable governance is not safe from agitation.

    And when things are going really bady: throw a war. Everybody will show up for the first year or two, and by the time they have realize how much you have screwed things up, you can say things like "stay the course", "don't change horses in mid-stream", and "we would dishonor the memories of those who have already died if we didn't kill a bunch more."

    --
    Censorship is telling a man he can't have a steak just because a baby can't chew it. --Mark Twain
  72. Re:Forbidden? by indifferent+children · · Score: 2, Informative

    Not by design. As with Assualt Rifles, it sometimes happens that landmines maim rather than kill, but (unlike blinding weapons) landmines were not designed to be non-lethal (hence the high-explosive and shrapnel).

    --
    Censorship is telling a man he can't have a steak just because a baby can't chew it. --Mark Twain
  73. Re:I hope not. Here is why. by lga · · Score: 3, Interesting

    This weeks New Scientist has some interesting statistics that will be relevant here. (The article isn't online, unfortunately.)

    "researchers have documented how soldiers will often go to great lengths to avoid firing directly at enemy soldiers, especially if they can seem them - and the distress they suffer when they do kill.

    A famous example is the Battle of Gettysburg, where thousands of soldiers on both sides loaded their weapons over and over to avoid having to fire them. Similarly, during the second world war, S.L.A. Marshall, a US army historian, found that on average only 15 to 20 per cent of American infantry troops actually fired at the enemy when they had the oportunity to do so."

    The article goes on to talk about how the US army managed to increase the firing rate in later wars by de-humanising the enemy and training soldiers to shoot on impulse.

    The main articles are about the Post-Traumatic Stress suffered later by the soldiers as a result of this.

  74. Not the F-22, or the F-16 by TamMan2000 · · Score: 4, Informative

    Actually the F-22 Raptor already has a laser system that's been designed for it and [I think it] fits in place of bombbay doors.

    It is the F-35 or the Joint Strike Fighter (JSF) that has a laser on the drawing boards.

    The thing about a laser system like this is that it need a lot of electricity to run, and the vast majority of fighter aircraft do not produce the kind of juice needed to run one of these. The thing that makes the JSF capable of handling a system like this, is the way the VTOL (Vertical Take Off and Landing) version of the aircraft was designed. Unlike previous VTOL fighters (AV-8 - Harrier and the Boeing consept for JSF) which use a series of nozels to redirect thrust the engine was already making to get vertical thrust, the Lockheed JSF (the one that was selected) has a secondary fan, driven by a shaft from the main engine and door that open above and below the fan.

    Using the lift fan in the VTOL plane means that the engine in the CTOL (Conventional Take Off and Landing) and CV (Carrier Varient) has the capacity built in to drive a shaft, and the aircraft themselves have a lot of room right in front of the engine/behind the cockpit. This shaft can then drive a large generator to fire the laser.

    I used to be an analyst at the company that builds the engines for the F-22 and the JSF. I worked on both programs.

    The laser is ultraviolet, thus it would allow an F22 to loiter in an area and attack ground targetes (Geneva conventions state that we can't attack people with lasers) However, we can cut the truck they're driving in half and thus detonating the fuel tank...

    Conventional fuels (gas/diesel) do not detonate unless they are vaporized, or atomised. They will burn pretty fast though.

    --
    "I'll have a Guinness, no wait, make that a Coors Light" -Grad student I work with, who shall remain anonymous...
  75. Re:Forbidden? by TheWizardOfCheese · · Score: 2, Informative

    The M2 is a retired weapon, and pretty much has been since the 60s.

    I don't know why the M2 is coming up in this thread about rifles, since it is a .50 cal machine gun. Although initially adapted for infantry use in 1921 (from an earlier aircraft weapon), derivatives of ma deuce are still in service today.

    See http://world.guns.ru/machine/mg04-e.htm for details.

    --

    "The good reader is a rarer swan than the good writer."
  76. Re:I hope not. Here is why. by einstienbc · · Score: 2, Informative

    I have seen said video. I have also seen the "extended cut" in which one of the "farmers" carries an RPG into the field and deposits it. Do a little more that to go by the name of the file.

    --
    If you die horribly on television, you will not have died in vain. You will have entertained us.

    --Kurt Vonnegut

  77. Re:I hope not. Here is why. by operagost · · Score: 3, Informative
    A famous example is the Battle of Gettysburg, where thousands of soldiers on both sides loaded their weapons over and over to avoid having to fire them.
    This argument is fallacious because it assumes the only possible cause for recovered rifles having multiple loads is intent by the bearer. The battlefield was noisy and frightening, so a perfectly valid premise held by many historians is that the soldiers failed to realize that their weapons did not fire. This happened on other battlefields- not just Gettysburg.
    --

    Gamingmuseum.com: Give your 3D accelerator a rest.
  78. Reactive armour by Dire+Bonobo · · Score: 2, Interesting
    > The amount of energy directed onto one spot is so intense it will burn
    > through anything less than a polished mirror.

    A fact which I would expect countermeasures to take into account, and perhaps even exploit.

    Could the target be protected with a thin, easily-penetrated secondary hull and a layer of opaque-when-vapourized material in between? i.e., laser burns through the outer skin, hits the inner material, vapourizes it, and then wastes all its energy burning through the resulting rapidly-changing vapour/plasma cloud.

    (Exactly the same idea as reactive armour, basically - defeat a specific munition by disrupting it with an in-armour triggered-active countermeasure.)