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Robotics Technology

First Military Exoskeleton Reaches Prototype 397

JonathanGCohen writes "The U.S. Military has created the first ever prototype for an exoskeleton to be worn by soldiers capable of making its 100 pound weight and a 70 pound supply package feel like five pounds." From the article: "Bleex 1 consists of a pair of hydraulically powered leg braces, more than 40 electronic sensors, a control computer, and an internal-combustion engine providing power from an attached backpack. The plastic and carbon-fiber braces are affixed rigidly to the soldier through a customized pair of standard Army boots, with more compliant and giving connections at the chest and waist. These looser connections prevent blisters and abrasions."
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First Military Exoskeleton Reaches Prototype

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  • 15 minutes? (Score:5, Insightful)

    by Renraku ( 518261 ) on Wednesday December 28, 2005 @06:54PM (#14354520) Homepage
    Which would you rather do: Carry 70 pounds throughout your journey, or carry 5 pounds for the first 15 minutes and then well over a hundred for the rest?
  • Responsiveness? (Score:4, Insightful)

    by Poromenos1 ( 830658 ) on Wednesday December 28, 2005 @06:56PM (#14354534) Homepage
    I suspect the biggest obstacle to comfortably using exoskeletons is responsiveness. If you want to move your hand, you just think about it and it takes a few milliseconds to move. With an exoskeleton, you have to hit the sensors (perhaps past their critical point), and the hydraulics/whatever has to kick in and move it. How long does that take?
  • Re:15 minutes? (Score:5, Insightful)

    by Silicon Avatar ( 30968 ) on Wednesday December 28, 2005 @06:58PM (#14354541) Homepage
    First "airplane" only lifted off the ground for 15 minutes (I think?)

    Which would you rather do? Ride a stagecoach for months to cross the country? or Fly for 15 minutes ...

    I think you see where I'm going with this.
  • Tin soliders... (Score:5, Insightful)

    by __aaclcg7560 ( 824291 ) on Wednesday December 28, 2005 @07:01PM (#14354566)
    It would really suck to be wearing one of these things when an EMP bomb goes off over the battlefield. I'm sure 170 pounds is not going to feel like 5 pounds after the electronics shuts down.
  • Re:Responsiveness? (Score:3, Insightful)

    by Miaowara_Tomokato ( 757775 ) on Wednesday December 28, 2005 @07:02PM (#14354571)
    I would posit that the biggest obstacle to comfortably using a military exoskeleton would be the the bad guy with an RPG/antitank rocket that sees a large, obvious target walking along with the rest of a column.
  • Re:15 minutes? (Score:3, Insightful)

    by no_pets ( 881013 ) on Wednesday December 28, 2005 @07:02PM (#14354576)
    Too bad I don't have mod points for you. I don't know how much weight the military currently expects a soldier to carry but if they can make 70lbs feel like five (not to mention the 100lbs of the exoskeleton) then the military will probably only be limited by bulk instead of mass while piling more supplies onto their soldiers.

    It would definitely suck once the equipment fails (totally or partially) in the field. A soldier could be ditching up to 80% of their supplies after a failure.
  • by bchernicoff ( 788760 ) on Wednesday December 28, 2005 @07:06PM (#14354596)
    This is far cry from something useful. Soldiers do a lot more than walking. What about running, diving, low crawling to some cover, then firing from a crouched postion?
  • Re:Boom! (Score:0, Insightful)

    by Anonymous Coward on Wednesday December 28, 2005 @07:11PM (#14354623)
    you can throw a match into and nothing will happen since it's flash point is extremely high

    When will people learn the difference between it's and its?
  • Re:Responsiveness? (Score:3, Insightful)

    by pnewhook ( 788591 ) on Wednesday December 28, 2005 @07:22PM (#14354697)
    I suspect the biggest obstacle to comfortably using exoskeletons is responsiveness. If you want to move your hand, you just think about it and it takes a few milliseconds to move. With an exoskeleton, you have to hit the sensors (perhaps past their critical point), and the hydraulics/whatever has to kick in and move it. How long does that take?

    You're talking about the response time here of the system, and yes on a big system it gets to be an issue. Rule of thumb is to keep the response time to under 100ms worst case which is usually doable.

    Another issue is not only removing the apparent weight of what you are holding but also the inertia. Removing the weight in a control loop just requires good velocity sensors which are commonplace, but you still feel the weight when you change velocity. Removing the inertia means you have how measure the acceleration very accurately so you either get the acceleration directly from the sensor (high precision = expensive) or take the derivative of the velocity sensor which introduces delay and noise. Stable inertial compensation is not trivial.

  • by vertinox ( 846076 ) on Wednesday December 28, 2005 @07:27PM (#14354723)
    This exoskeleton sucks for defending and going after people in cities, close alleys.

    It would be good if they figured out how to enclose a soldier in plated armor strong enough to withstand a IED (although that maight be a lot of armor).

    The main benefits of that would be that even though you are slow you can take a punishment and still be able to get into alleys, buildings, and other places a M1Abrahms can't get into.

    Then again... It would be more logical to send in a remote controlled robot with a machine gun on it.
  • Just a Prototype (Score:3, Insightful)

    by Hookoa ( 759347 ) on Wednesday December 28, 2005 @07:48PM (#14354818)
    Many of you are asking questions of "how will it perform in combat, can operators crouch/dive/roll/prepare a five course dinner/shoot/etc, and what happens when it runs out of gas?"

    This is why we have the prototype stage when we build something.

    When Goddard launched his first rockets, people didn't say "Yeah, but how're you going to get to the moon on that?"

    You build, find the shortcomings of your design, improve, and test again.

    The suit probably doesn't have any practical application now, but future versions in five - ten years might allow military mechanics to fix heavy vehicles quickly, and in 20 - 50 years, our soldiers might be able to carry better body armor into combat with less restrictions than the current body armor (which is heavy in its own right).

    I like the idea that our soldiers who are being shot at will eventually be able to move faster, shoot more effectively, wear more protection, and be better equiped than their enemies.
  • Re:15 minutes? (Score:5, Insightful)

    by PortHaven ( 242123 ) on Wednesday December 28, 2005 @07:51PM (#14354831) Homepage
    We who cannot think out of the box salute you!

    Or point out, that the ability to move 200lbs up rugged terrain and trenches which are inaccessible by vehicle would allow a vehicle level weapon to be brought by a light mechanized infantry unit.

    For example: such a system could allow a heavier caliber gatling machine gun to be mounted on a mountain side. A ordinance not normally able to be carried by infantry; to a position unreachable by vehicle. Where as currently, an infantry unit may have one heavy infantry weapon (machine gun, anti-tank weapon, bazooka, stinger, etc.) Such a system if it could be powered for prolonged use would allow every member of a squad to have heavy armament. When a platoon of mechanized infantry have the means to quickly move and engage with heavy ordinance an armored unit (tank) it makes the tanks much less viable.

    Furthermore, this doesn't even address if they were to replace the ICE with a nuclear powerplant. Often the case for such a design as this specifies to design a unit that operates and functions on a powerplant of "X" amount. Then the powerplant is developed seperately and eventually substituted.

    For instance, with fighter jets, most prototypes do not use final engines. Often they are told to design the jet with the expectations that the final engines will provide x thousand lbs of thrust/lbs of engine. But are first tested with engines that often do not provide such power levels. Later in the final prototypes the engines are replaced with the new final units.

    I imagine the plan of feasibility is that these things will eventually run off a non ICE power plant.

  • Re:Boom! (Score:5, Insightful)

    by kraut ( 2788 ) on Wednesday December 28, 2005 @08:03PM (#14354887)
    Surely as a member of the military you will do whatever you're bloody well told to do; isn't that the whole point?

  • Re:15 minutes? (Score:4, Insightful)

    by WindBourne ( 631190 ) on Wednesday December 28, 2005 @08:12PM (#14354946) Journal
    The US army is ridiculously powerful, no nation stands a chance in direct confrontation.

    At this time, that is true. But historically, nations rise and fall based on either economics or military. Overall, We are quickly losing the economics to china. And quietly, GWB is losing ground on the military to china. The longer that we stay in a protracted war introducing all of our elements, the easier it is for an somebody to figure out how to counter it.

  • by alandd ( 243817 ) on Wednesday December 28, 2005 @08:24PM (#14355004)
    Your comment is very interesting and I'll have to go look for that book. However, I'd just like to point out that your question is not about the future, it is now.

    Cruise missles, ICBMs and even just vastly superior artillery and aircraft make the "causing of pain to [other men] with no risk to [themselves]" a reality now.

    Cruise missles were launched on Bagdad from ships in the Red Sea. That ship was not in any danger from the people it attacked. Even the stealth bombers that participated in the first attacks on Bagdad were not in any credible danger from Iraqi forces.

    What is my point? Well, I'm not sure, execpt to point out that your question is immediate and requires thought now. We don't need to wait for robots to need the discussion.
  • by brain defrag ( 940949 ) on Wednesday December 28, 2005 @08:32PM (#14355054)
    An internal combustion engine? One thousand PSI of hot hydraulic fluid coursing through steel veins running throughout my lower torso and legs? And gasoline? On my back? While I'm being shot at? I'm game!
  • by lombre ( 789526 ) on Wednesday December 28, 2005 @09:11PM (#14355217)
    Only a psyhco would put a nuclear powerplant in one of these. As it is the enemies duty to destroy these (things are just going to be blowing up all over the place in a battle) you put your own soldiers at extreme risk, not to mention the long term danger to the environment and civilians. Your own troops are not going to want be near them! Or did you mean cold fusion?
  • Re:15 minutes? (Score:3, Insightful)

    by Cedric Tsui ( 890887 ) on Wednesday December 28, 2005 @09:27PM (#14355293)
    I think this would be useful is moving large weapons or communication systems (whatever fancy enemy triangulation spotting equipment you can think of) over uneven terrain. Wheels can't go everywhere.

    If you can get a bigger gun in a more advantageous location, then I would want these in my army. They're certainly not being implemented as replacements for forklifts.

    You're right though. This would not help in Iraq. Neither would gauss rifles mind you. It would be nice to see some more technological advances for the urban war.
  • Re:15 minutes? (Score:3, Insightful)

    by Cedric Tsui ( 890887 ) on Wednesday December 28, 2005 @09:35PM (#14355335)
    LOL. There are 'nuclear powerplants' that don't produce harmful radiation. They're electric, and are still in development. But that's an aside. I trust that you just mean that the next generation powersupply will be better than what they have now. I'm wondering though how well these exoskeletons work if you're not standing. Suppose it can't offer support to your arms (the picture doesn't show arm braces) Then if you duck for cover, you go from feeling 5 pounds to feeling 170 pounds. If that's the case, I'm guessing they're not intending these suits to be used in combat just yet. Just for moving supplies to hard to reach areas.
  • by bar-agent ( 698856 ) on Wednesday December 28, 2005 @10:25PM (#14355581)
    I'm not convinced that an exoskeleton will enable a footsoldier to take on a tank of the same tech level.

    A foot soldier can already take on a tank. http://www.defense-update.com/products/r/rpg.htm [defense-update.com]

    Imagine a soldier carrying a ton of armour, yet able to move almost as quickly as a man, yet impervious to most weapons...

    Well, based on other posts, it looks like armor ain't what it used to be. But imagine a soldier carrying a hornet's nest of anime-style swarming missiles. He'd be a like a mobile squad-level point defense station.
  • Re:15 minutes? (Score:1, Insightful)

    by Anonymous Coward on Wednesday December 28, 2005 @10:33PM (#14355621)
    Guards are high profile targets that tend to stay in one locationt. Make this thing a hybrid and give them a power cable that can disconnect easily and you give them the ability to carry a ridiculous amount of armor. Current body armor weighs in under 30 lbs. Now imagine being able to be able to wear 200lbs. Along with that instead of carrying a light carbine the standard weapon could be a much heavier rifle or squad gun.

    Currently the only method of having a "big dog on a chain" at a defensive position is to have a mounted gun position or a light armored vehicle mounted gun. Neither of which are manuverable nor unable to deal with close quarters opponents at odd angles of fire and both make nice big fat targets for RPG's.


    Give me a fucking break. This thing, just like an APC or anything else lighter than a full blown Abrams is going to be anti-tank missile fodder. There will be a guy crawling along in a ditch with another guy hauling a video camera and it (the exoskeleton and its wearer) will get capped. Want to see how it happens? Do a little creative querying for uncensored video on ambushes in Iraq. Even with the armor of the Abrams AT-14 Kornet missiles can give them a run for the money.. and somehow these weapons keep showing up in the third world. And no, being more "maneuverable" won't give them an advantage when they're getting sucker punched.

    This armored exoskeleton would have most of the advantages and fewer of the disadvantages and provide the intimidation and defensive capabilities the Army is looking for. It'll be some time were you'll see long range patrols using this equipment until some large advancements can be made to the max weight and the density of the power source.


    Yeah, I'm sure a jihadist that's willing to die is going to be intimidated by jack and shit. We're not fighting the cold war, and we're not playing Battletech. If you need a gun emplacement to secure an area, then build an emplacement. Otherwise, weapons need to get lighter, soldiers need to get stealthier, and overall we need to infiltrate the opposition and get deadlier. If you're going for sci-fi weaponry create lethal nanomachines and turn em loose in enemy enclaves. Big and armored is out. Small, fast, quiet and lethal is in.
  • by scheme ( 19778 ) on Wednesday December 28, 2005 @10:40PM (#14355658)
    BTW, a MechWarrior Battletech Battlemech, or WTH ever it is called, also goes by another name: sitting duck. In physics as is currently known, penetrating missle-bombs are way, way ahead of armor. In fact, the only viable defense against them are anti-missle missles.

    Forget the anti-armor missiles, a good hit in the upper portion of the thing would probably be enough to knock it down even if the round doesn't penetrate the armor. Once it's down, you could probably pick it apart pretty easily.

  • by DogAlmity ( 664209 ) on Wednesday December 28, 2005 @10:43PM (#14355673)
    So what, its got a pull-start? What about stealth? Terrorist 1: You hear something? Terrorist 2: Sounds like one hundred people mowing their lawns, nothing to worry about. TFA /.'ed, so if it meant some kind of fuel-cell business then whatever. The important thing is that I amuse myself.
  • by tftp ( 111690 ) on Wednesday December 28, 2005 @11:22PM (#14355852) Homepage
    Indeed, that's an excellent reason why armored vehicles (like tanks) are no longer used in modern armies: a single hit into a vulnerable part can disable them. You don't use anything that is not completely, 100% perfect. Never mind that a single land-bound tank, while it lasts, can break through defenses that otherwise would be impenetrable. There simply would be no military value in a tank that can run, climb, jump - even if it has some limited flight capability. Just think of it, what if it gets destroyed while doing its job?
  • by vandan ( 151516 ) on Thursday December 29, 2005 @12:40AM (#14356205) Homepage
    I wonder if these babies will be stocked-up with napalm, white phospherous, agent orange, 'depleted' uranium and other WOMD.

    Gotta love those peace-keeping missions. Keep up the good work, USA. At this rate, the world WILL be full of people wishing you blown to high heavens. Surely US taxpayers' money would be better spent making ammends with the victims of the invasion of Iraq & Afghanistan, and other countries ravaged by US foreign policy ... not to mention helping out the victims of Katrina, or even just boosting public spending. When was the last time spending increased on social services over there? Or do people get locked up for asking that question these days?
  • by cold fjord ( 826450 ) on Thursday December 29, 2005 @12:42AM (#14356214)
    I was watching a documentary on the race to build the next generation fighter jet, and time and time again, the main argument in favor of the X22 was that the other design looked weird.

    Yeah, plan your multi-billion dollar expenses on the sexiness of the machine boys, not on the functionality. I too get "the willies" thinking that people this infantile are sitting with their finger on the metaphorical nuclear button.


    You don't suppose that rather than try to dig up classified information, or try to determine the objective criteria used in the decision(things like unrefueled range, weapons load, maintainability, cost, situation awareness aids, etc. ) that the producers took an easy out and said it won because, " Oooooh, its pretty and fast!" I find that notion easier to believe than the assertion that a major defense program providing the primary air superiority fighter for the Air Force, the F-22 [f22-raptor.com] would be decided primarily on aesthetics and that said selection would survive scrutiney by the Department of the Air Force, DOD, Congress, and the President. There are many philosophical positions that can impact programs like this, (purpose built vs general purpose, heavy vs light) but ugly vs pretty isn't really one of them. If it were, two of the most effective aircraft the US has built would never have seen the light of day: the F-117 Nighthawk [af.mil] stealth figher, and the A-10 Thunderbold II [af.mil], AKA Warthog.

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