Slashdot Mirror


DARPA Is About To Start Testing an Autonomous, Submarine-Hunting Drone (vice.com)

merbs writes: Early next year, DARPA will begin testing a 132-foot unmanned submarine-hunting ocean drone in San Diego. Slapped with the cumbersome title of Anti-Submarine Warfare Continuous Trail Unmanned Vessel (ACTUV), it's designed to do exactly that: track stealth submarines from the surface, quietly and autonomously. "The 132-foot-long, 140-ton ACTUV is being built by Leidos at the Vigor Shipyard [formerly Oregon Iron Works] in Clackamas, Ore. The vessel is about 90 percent complete. The hardware of the systems is complete, with software being engineered presently." Using one of these drones would cost "about $15,000 to $20,000 per day, compared with a destroyer that costs about $700,000 per day to operate."

84 comments

  1. Why so big? by Tony+Isaac · · Score: 1

    Why couldn't a submarine-hunting drone be a small craft, say, 10 feet long? Such a small craft would be an order of magnitude less expensive, and quicker to produce, than a 130-foot-long vessel.

    1. Re:Why so big? by Anonymous Coward · · Score: 0

      Because a craft that was only 10ft long would not have the months of open ocean endurance, and would only be practical for use in very large numbers along the shore.

    2. Re:Why so big? by Anonymous Coward · · Score: 4, Insightful

      I think you just invented the torpedo...

    3. Re:Why so big? by Anonymous Coward · · Score: 0

      A longer craft can use more widely-separated microphones which allows monitoring of lower wavelengths. It would, of course, be possible to use a smaller craft and deploy microphones on a cable or fixed platform trailing behind (this is done in oil exploration) but that has other problems: slow response to maneuvering, cable entanglement, excessive drag, cable and drag noise, limited top speed, etc.

      At root it may be yet another manifestation of the military's inability to adapt to a changing world; they still seem to think big ships rule. Usually such thinking goes uncorrected until a serious naval war erupts and facts intervene to destroy foolish fantasies.

    4. Re:Why so big? by Anonymous Coward · · Score: 2, Informative

      Hull speed, for one thing. The speed in knots of a displacement hull is roughly 1.3 * sqrt(length at waterline in feet). So ~4 knots for a 10 ft hull. A modern sub can do 30 knots.

      Never mind the sea-keeping problems of a 10 ft boat in open ocean swells.

    5. Re:Why so big? by Anonymous Coward · · Score: 0

      because the Mark 48 torpedo is 19 feet long and weighs in at a hefty 3434 lbs. To carry enough of these (along with propulsion and sensors) to make the cruise worth the time and effort, it appears the launching craft needs to be 132 feet long.

    6. Re:Why so big? by Anonymous Coward · · Score: 0

      I want to know why Slashdot's associated graphic for this story appears to be god damned centurion. WTF does that have to do with the story? Are they decimating, hunting Goths, building a wall across the UK, or?

    7. Re:Why so big? by Anonymous Coward · · Score: 0

      Warfare, dear boy or girl. Warfare.

    8. Re:Why so big? by AHuxley · · Score: 1

      Its a big floating wireless version of the very traditional sound surveillance system (SOSUS) https://en.wikipedia.org/wiki/...

      --
      Domestic spying is now "Benign Information Gathering"
    9. Re:Why so big? by Hognoxious · · Score: 1

      The speed in knots of a displacement hull is roughly 1.3 * sqrt(length at waterline in feet).

      Engine (or oar, or sail) power doesn't factor into it at all?

      --
      Confucius say, "Find worm in apple - bad. Find half a worm - worse."
    10. Re:Why so big? by Punko · · Score: 2

      The maximum speed is what he is referring to. You can go faster on the water, by planing (essentially skipping across the surface) but heavy or deep hulls do not plane, and so are limited to the maximum hull speed above, regardless of the power of the engines.

      --
      If only we could fall into a woman's arms without falling into her hands
    11. Re:Why so big? by aaarrrgggh · · Score: 1

      Isn't that a function of bow and stern wave interaction? Isn't that eliminated for a fully submerged object? Witness SWIFT and SWATH catamaran designs?

    12. Re:Why so big? by iainr · · Score: 1

      Can you give an example of this? all through the Russo-Japanese War, WWI, WWII, the cold war and the Falklands ship sizes for classes have generally gone up during or as a result of lessons learned during the war ( e.g. batch 2 and 3 type 42s vs HMS Sheffield) and then gone down again because of cost issues during the peace, or at least perceived cost, generally steel and air is much cheaper than people and systems on modern vessels so there is an argument for building them bigger than you actually need so you have space to expand into.

      What tends to happen is that having built a ship, if you take it to war people hang all kinds of new stuff on it all of which need consubambles, spares and new bodies to work the kit. You end up with a ship that's crowded and if you're not careful top heavy. The classic example being your 1930 RN destroyer which in the course of WWII was likely to get RADAR, more AA guns, SONAR, more AA guns, degaussing equipment, more AA guns, HDFD, more AA guns, hedgehog, you can never have enough AA guns, squid...generally post WWII ships got bigger.
      The largest ships in most fleets today are bigger than their predecessors.

    13. Re:Why so big? by ColdWetDog · · Score: 1

      Catamarans and foils are considered planing boats for this argument. Look at the sailing foils - they seem to have exactly six inches of carbon fiber actually in the water. There is a limit to how big multihulls / foils can get - it gets bigger all of the time but typically at the expense of weight. They are basically aircraft in design and construction (and cost). So far, this hasn't worked out well for naval designers that like to put two hundred men and women, multiple tons of things that go boom and assorted paraphernalia on the craft. That may be the future, but the for the moment, very large boats are displacement-only.

      --
      Faster! Faster! Faster would be better!
    14. Re:Why so big? by bfpierce · · Score: 1

      It needs to be able to survive on the Ocean, which is not a great place for small craft to hang out in for month+ long periods of time. Plus equipment, and fuel for said month+ long periods of time.

    15. Re:Why so big? by ColdWetDog · · Score: 1

      Oh, and displacement values for cats / trimerans include the total of the lengths of the sponsons. So a 50 foot catamaran has roughly double the displacement speed of a monohull.

      --
      Faster! Faster! Faster would be better!
    16. Re:Why so big? by chispito · · Score: 1

      Stability.

      --
      The Daddy casts sleep on the Baby. The Baby resists!
    17. Re:Why so big? by Tony+Isaac · · Score: 1

      I don't know. Today's electronics are able to compensate for lack of stability.

    18. Re:Why so big? by Type44Q · · Score: 1
      Indeed and like an early torpedo, it's strictly limited to travelling on the surface.

      From TFA:

      This includes autonomous compliance with maritime laws

      Yeah, right; it'll stop and offer assistance when other vessels send out distress calls?

    19. Re:Why so big? by Tony+Isaac · · Score: 1

      For human occupants, yes. But equipment doesn't need as much stability, it can be fastened down.

      The fuel thing I get.

    20. Re:Why so big? by Tony+Isaac · · Score: 1

      Torpedoes do their jobs just fine, and with today's miniature electronics, there should be plenty of room for the cargo. The one limitation might be space for fuel, but with a small craft, not as much fuel is needed, so I doubt you need a 130 foot vessel just for that!

    21. Re:Why so big? by Anonymous Coward · · Score: 0

      Hull speed, for one thing. The speed in knots of a displacement hull is roughly 1.3 * sqrt(length at waterline in feet). So ~4 knots for a 10 ft hull. A modern sub can do 30 knots.

      Never mind the sea-keeping problems of a 10 ft boat in open ocean swells.

      Yes, but it will sound like a passing train at those speeds.

    22. Re:Why so big? by Anonymous Coward · · Score: 0

      If small craft don't need much fuel, why are ocean crossing vessels of the powered variety typically quite large? Maybe it has to do with the economies of scale that allow carrying much more fuel (volume) for a given wet surface area?

  2. They can only improve by manu0601 · · Score: 1, Funny

    The drones can only do better than current situation, where a french submarine was able to virtually sink a US carrier during an joint drill

    1. Re:They can only improve by Anonymous Coward · · Score: 0

      why is a american submarine shooting a russian torpedo

    2. Re:They can only improve by iainr · · Score: 1

      Did they use the ususal ruse of having the First officer affecting a Peter Sellers Indian voice on the radio and pretending to be a cruise ship or did they come up with something new?

    3. Re:They can only improve by manu0601 · · Score: 1

      In this drill, the french submarine was playing the role of an hostile country. It was able to sneak below the US carrier without raising any alarm. Since it was not detected, it was able to sink the carrier and its escort. The article does not say if the submarine would have been able to escape from the field without being identified afterwards.

      A decade years-old submarine able to destroy billions of US Navy gear, that is no good news.

  3. Software being engineered presently by Anonymous Coward · · Score: 0

    Well, it shouldn't take long at all, then! It's just a small matter of programming.

  4. Just wait by JustAnotherOldGuy · · Score: 2

    Just wait until the software has a glitch and it zeroes in on a container carrier or a cruise ship and blows it out of the water.

    But don't worry- I'm sure that'll be fixed in ver. 2.0, after it sinks half the ships in the Atlantic Ocean.

    --
    Just cruising through this digital world at 33 1/3 rpm...
    1. Re:Just wait by Anonymous Coward · · Score: 0

      That fix will have to wait until 3.0, because weapons won't make it on until version 2.0.

    2. Re: Just wait by Anonymous Coward · · Score: 1

      This technology makes the world a less safe place. Happy now?

      The russians will counter with the ICBM-carrying drone subs that launches when it is discovered.

    3. Re:Just wait by TheDarkMaster · · Score: 2

      Worse. The programmer will be a millennial who will want to do the navigation control and decision making using Javascript. What can go wrong? :-)

      --
      Religion: The greatest weapon of mass destruction of all time
    4. Re:Just wait by Anonymous Coward · · Score: 0

      As opposed to the boomers who are the reason for all the current conflict to begin with.

    5. Re:Just wait by AmiMoJo · · Score: 1

      At work another group has been developing some map based software to manage data loggers. The loggers can be programmed with the GPS coordinates of where they are deployed, but sometimes they are not so they send the default value of 0,0, which is somewhere in the Atlantic off the coast of Africa. Before they added some code to hide them, we had a small mountain of data loggers floating in the ocean.

      This got me thinking about the future where we have more and more drones with greater and greater range. I expect there will be a large field of debris where numerous drones that were not programmed properly or somehow wiped their memories headed for 0,0 and eventually ran out of fuel. Probably a mix of boats, submarines and some long range drone aircraft, some civilian and some military. Maybe the odd cargo ship, pillaged by Somali pirates and then set on autopilot with the default coordinates.

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

      But don't worry- I'm sure that'll be fixed in ver. 2.0

      If America is actively targeting and attacking Russian submarines, that means that WWIII has started, and there ain't gonna be no version 2.0.

  5. Because today's technology require it so by drnb · · Score: 1

    Why couldn't a submarine-hunting drone be a small craft, say, 10 feet long? Such a small craft would be an order of magnitude less expensive, and quicker to produce, than a 130-foot-long vessel.

    Because of the equipment it needs to carry. A propulsion system with the speed and endurance to follow a submarine; now add the additional equipment and structure (vibration isolation, etc) to be silent. Acoustic and other sensor systems to detect a submarine at depth. Today's technology requires the preceding equipment to be a certain size.

    1. Re:Because today's technology require it so by michelcolman · · Score: 1

      Wouldn't it be really easy for an enemy to attack these? They're on the surface, so any flying drone can spot them and destroy them. Looks to me like these will only be useful in peace time, if you want to know where the Russian and Chinese subs are without any actual conflict going on. If a war starts, it will be like shooting fish that are floating on top of a barrel.

    2. Re:Because today's technology require it so by Anonymous Coward · · Score: 0

      Submarines' main feature is stealth. Their tactical value greatly diminishes with every shot fired.

    3. Re: Because today's technology require it so by Anonymous Coward · · Score: 0

      Right, so the enemy sends an aerial drone to take our these surface drones, submarines doesn't have to fire a shot

    4. Re:Because today's technology require it so by Crowd+Computing · · Score: 1

      I think a fusion of the two ideas would be better. If you separate the search from the destroy function, you can have smaller, dolphin-size drones forward-deployed to search for the enemy. When it finds something, it "radios" back to the mother drone or the crew of a manned submarine, who will then decide whether to attack or continue surveillance.

    5. Re:Because today's technology require it so by ShanghaiBill · · Score: 1

      ... smaller, dolphin-size drones forward-deployed to search for the enemy.

      Russian subs can move at a sustained speed of 35 knots, and can go 45 knots for short periods. At that speed, a dolphin-size drone would quickly run out of fuel. To track the sub over the sound of its own engines, the drone would have to use active sonar, so the Russians would know it was there. Before a separate strike vessel could arrive, they could either destroy the drone, or outrun and evade.

    6. Re:Because today's technology require it so by bobbied · · Score: 2

      Wouldn't it be really easy for an enemy to attack these? They're on the surface, so any flying drone can spot them and destroy them. Looks to me like these will only be useful in peace time, if you want to know where the Russian and Chinese subs are without any actual conflict going on. If a war starts, it will be like shooting fish that are floating on top of a barrel.

      Depending on the sea state, finding a small boat in miles of ocean can be a seriously difficult problem. I suppose if you know where the submarine the thing is following is the problem is much easier, but as others have pointed out, sending out a search/destroy mission pretty much going to be a dead give away that there really is a submarine here.

      Also, this is a passive system, meaning that the submarine is unlikely to be able to tell they are being monitored. So do you just give away your position because there is a chance the adversary already knows? I don't think so, at least not until you are sure something is shadowing you, and at that point you change tactics and start working on getting away if you can.

      However, this all makes me wonder what this will be used for. We already have a fairly good idea what's going on under the oceans now. We have very sensitive listening devices all over the oceans and are capable of quickly placing a bunch of temporary listening posts if the need arises. I'm not so sure these passive trackers are going to be all that useful, except that they can be sent into an area for a few days to detect possible submarine operations with a bit more detail, without causing suspicion. This is totally different than just tracking a single boat...

      --
      "File to fit, pound to insert, paint to match" - Aircraft Maintenance 101
    7. Re: Because today's technology require it so by bobbied · · Score: 2

      How do you propose the submarine call in an air strike? Dial somebody up on the captain's cell phone?

      Anytime a submarine needs to communicate, it risks giving away it's position. Radio communications require putting *something* above the water and anything you do that with is subject to detection, both physically as well as through direction finding of the RF signals required. Yes, submarines *can* do this sort of thing, but it's pretty much assumed that when they do, they have given up their position to somebody, and that's usually a bad tactical move.

      --
      "File to fit, pound to insert, paint to match" - Aircraft Maintenance 101
    8. Re: Because today's technology require it so by ColdWetDog · · Score: 1

      How do you propose the submarine call in an air strike? Dial somebody up on the captain's cell phone?

      Anytime a submarine needs to communicate, it risks giving away it's position.

      Laser comms with satellites. Subs have been doing this for years. Not completely silent (as you point out, nothing is), but hard to spot. A brief encoded message saying 'nasty sub at so and so position, this and that depth, heading thisaway' doesn't take much info (or time).

      --
      Faster! Faster! Faster would be better!
    9. Re:Because today's technology require it so by ColdWetDog · · Score: 1

      These seem like the ultimate sensor platforms. Yes, you can drop sonobouys (with limited lifetime and capability) or drop some two ton surveillance platform from a CG buoy tender, but this thing can putter off to where you want it and sit there.

      It sure looks like a semi submersible - flood the pontoons and part of the hull, the only thing that sticks up are the antennas. Damned hard to spot. The ocean is really freaking big.

      --
      Faster! Faster! Faster would be better!
    10. Re:Because today's technology require it so by Crowd+Computing · · Score: 1

      This problem can be remedied using a mesh or fence of mini-subs spread across a wide area, where an alert from one mini-sub would trigger the monitoring of the next sub along the line. With this approach you can even go virtually fuel-less, just ride out the ocean waves like a jellyfish or naval mine.

    11. Re:Because today's technology require it so by tomhath · · Score: 1

      Most of the world's oceans are already covered with cables and microphones. All countries who care already have a general idea of where the subs are located. What's needed is a platform that can navigate to that vicinity and track the sub with enough accuracy to destroy it. That's the job of destroyers today, but they don't do it very well against modern subs.

    12. Re:Because today's technology require it so by dcw3 · · Score: 1

      This problem can be remedied using a mesh or fence of mini-subs spread across a wide area, where an alert from one mini-sub would trigger the monitoring of the next sub along the line. With this approach you can even go virtually fuel-less, just ride out the ocean waves like a jellyfish or naval mine.

      And how many would you like to build? smaller platforms = less payload = limitations on the sensors & communications & fuel & engine.

      --
      Just another day in Paradise
    13. Re: Because today's technology require it so by bobbied · · Score: 1

      I don't think even laser coms are all that secure anymore.... http://www.bbc.com/news/world-...

      All you do is park a listening satellite near the sub's target bird and watch for communications to happen, volia you have a good position on a sub.

      --
      "File to fit, pound to insert, paint to match" - Aircraft Maintenance 101
    14. Re: Because today's technology require it so by Anonymous Coward · · Score: 0

      Radio communications require putting *something* above the water and anything you do that with is subject to detection, both physically as well as through direction finding of the RF signals required.

      Very low frequencies of 3kHz to 30kHz can penetrate sea water (typically about 20-40 meters), while extremely low frequencies from 3Hz to 3kHz can penetrate much further into sea water and were used by the US and Russia, and are still used by India for communication with submarines. These electromagnetic waves are nondirectional and don't require putting anything into the atmosphere or outside the submarine. The US and Russia nowadays rely on other means, such as hydrophones which send and receive acoustic signals.

      Capcha was "smallpox", interestingly.

    15. Re: Because today's technology require it so by Anonymous Coward · · Score: 0

      VLF works under water...

    16. Re:Because today's technology require it so by Anonymous Coward · · Score: 0

      It will indeed be trivial. Not because the sub will alert the fleet, but because the drone itself will be followed 24/7. Could be an airborne drone, patrol aircraft, spy sat or other assets. And when a war starts, the surface drone will be sunk in seconds. In fact, precisely because it's a drone, it can be sunk even before war breaks out. Sinking a manned ship is a casus belli, sinking a drone it not. That's just a warning that the other state is serious.

    17. Re: Because today's technology require it so by bobbied · · Score: 1

      VLF is good for talking TO something but it's difficult to actually transmit FROM something. It takes very long antennas and lots of power to get any kind of useful signals though sea water. Ground stations that do VLF are huge affairs and run literally megawatts to get world wide coverage. We have mobile VLF transmitters, but those are mounted in aircraft, big aircraft, with miles of wire trailing behind them and extra power generation capacity so they can run enough wattage to be useful. You don't mount these things on a truck, a ship or anything else.

      VLF is also SLOW. It's something like 300 baud or less. That means just sending "hello" is going to take awhile. Sending something as complex as your location and a request for somebody to do something is going to take a really long time. Doing it with reliability, adding checksums or even parity bits just adds to how long all this takes, so here you are, radiating boat loads of RF energy for a really long time sending even simple things over VLF.

      You don't do this on a submarine because it is really hard to accomplish and it's STUPID because VLF is really easy to do direction finding with. Even if they didn't understand what you transmitted they'd have an excellent fix on your location before you could send "hello". It would be roughly the same as heading to the surface in broad daylight, turning on the sonar pinger, popping the hatch and sending up flares in the middle of the adversary's fleet, staying there for 10 min and then trying to sneak away..

      So using VLF to transmit something urgent to a submarine? Great idea, just set up a ground station or aircraft transmitter and bang out the message. Going the other way? Not so great of an idea. In fact a really stupid idea if you intend to stay stealthy in that submarine...

      --
      "File to fit, pound to insert, paint to match" - Aircraft Maintenance 101
    18. Re: Because today's technology require it so by bobbied · · Score: 1

      VLF is great but only ONE way - VLF is great to talk TO a sub that you don't know a location of, but it's not so good for a sub to transmit VLF.. I'm guessing you *could* do it, but the problem is that you are basically advertising your location to the world by doing this. The whole point of a submarine is to stay hidden where nobody knows you are and that's going to be really hard to do if you are radiating lots of RF energy.

      --
      "File to fit, pound to insert, paint to match" - Aircraft Maintenance 101
  6. Name it... by Tablizer · · Score: 1

    "Nomad"

  7. Help by Anonymous Coward · · Score: 0

    I don't get this. Can someone please provide a car analogy?

    1. Re:Help by Anonymous Coward · · Score: 5, Funny

      Imagine a sea of cars, as far as the eye can see.
      Now imagine a container, enclosing carless space.
      The container will be less dense than the surrounding car-ness, and hence bouyant. This is that, but with water instead of cars. Also it hunts submarines and is an unmanned vehicle.

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

      So a Google self driving car roaming the Walmart parking lot on Black Friday hunting down the idiot in the handicapped slot on a "seek and destroy" mission?

  8. I think they should go for something like this.... by vedranius · · Score: 0
  9. I am delighted by Anonymous Coward · · Score: 0

    I am delighted that my tax money is being put to good use!

    1. Re: I am delighted by oobayly · · Score: 1

      You should be - they say it will cost between 15-20k per day. It's the military, so we'll assume they're out by an order of magnitude, that's still [according to the summary] about a quarter of the running cost of a destroyer.

  10. Invent AHK against HK by Anonymous Coward · · Score: 0

    So this hunter-killer warfare technology will be countered by anti-hunter-killer warfare technology. Such as similarly-sized decoys giving a full-size 'footprint'. Or, new submarines totally computerized and full of identical stealth technology. Or low-noise engines, a la 'Red October', making these robotic hunter-killers worthless.

  11. I for one welcome our new cetacean overlords by Hognoxious · · Score: 1

    I heard on the news that due to the actions of SMJWs[1] Sea World is dropping the orca displays. And they have a park where? San Diego.

    Coincidence? I think not.

    [1] Sea Mammal Justice Warriors

    --
    Confucius say, "Find worm in apple - bad. Find half a worm - worse."
  12. Ready "real soon now..." by Bearhouse · · Score: 1

    The hardware of the systems is complete, with software being engineered presently

    No need for the drug runners to worry for a while yet, then...ironing out the bugs will probably take a few years

  13. Anti-Submarine Warfare Continuous Trail ...... by Feral+Nerd · · Score: 2

    Anti-Submarine Warfare Continuous Trail Unmanned Vessel (ACTUV)

    To all our American friends. I have always admired your ability to invent insanely complicated and nonsensical names for things in order to produce a nice ancronym but now I am quite frankly disappointed. This one compares badly to your usual work, it is mediocre at best. You guys really need to get your act together.

    1. Re:Anti-Submarine Warfare Continuous Trail ...... by Hognoxious · · Score: 1

      Autonomous/Automatic Sardine Can Opener. Pronounced ass-cow.

      Or stick Chinese/Commie in front and say cash-cow. It probably will be, to somebody.

      --
      Confucius say, "Find worm in apple - bad. Find half a worm - worse."
    2. Re:Anti-Submarine Warfare Continuous Trail ...... by Anonymous Coward · · Score: 0

      Anti-Submarine Warfare Continuous Trail Unmanned Vessel (ACTUV)

      To all our American friends. I have always admired your ability to invent insanely complicated and nonsensical names for things in order to produce a nice ancronym but now I am quite frankly disappointed. This one compares badly to your usual work, it is mediocre at best. You guys really need to get your act together.

      If the Vatican gets hold of one and it accidentally sinks a vessel you own, will your insurance claim be denied because it was an ACTUV God?

  14. Advantages by Required+Snark · · Score: 1
    This has some interesting advantages over current systems.

    It's will much quieter then a manned destroyer. No plumbing, no laundry, no kitchen, no people talking and moving around. Therefore, it's intrinsically more stealthy and much harder for an enemy to detect. Since it generates less noise it will also be a much more sensitive listening post. That's why they can say it can track the newer generation of quiet non-nuclear powered submarines. The plumbing in a reactor is hard to mask acoustically, which is one reason the non-nuke boats have an advantage.

    It changes the offensive/defensive cost equation. Non-nuke subs are much cheaper to develop and deploy, so you don't need the military budget of the US or Russia to have a sizable fleet. Size means that even if boats are lost in combat, there will still be enough remaining to accomplish the mission. A surface ship like this will be cheaper to make then a submarine, so the US can afford to build a big enough fleet to counter a force of non-nuke subs. Add in the lower operation cost, and it's a real headache for the opposition.

    This thing is going to be really stealthy. If an enemy can hunt it down with ships or aircraft it looses it's effectiveness. It wouldn't be surprising if the published pictures are deliberately inaccurate. It might have a more radar reflecting shape like the Zumwalt

    There might be a problem keeping it out of enemy hands. It would be awfully tempting for a naval power like Russia or China to try and nab one on the high seas to find out what makes it tick. Expect that it would self destruct if captured, and perhaps even be designed to take some other vessels down with it.

    --
    Why is Snark Required?
    1. Re:Advantages by AHuxley · · Score: 1

      The positive news is local contractors get decades of jobs creating, building and refitting the drones.
      Re "It would be awfully tempting for a naval power like Russia or China to try and nab one on the high seas to find out what makes it tick"
      Human spies deep in the US would have seen/been sitting in on the conception, funding and final design. Thats the good part about having generations of human spies deep in governments vs a digital "collect it all" system to try and spy on ports.
      Re "to find out what makes it tick"
      A well designed modern sub would never allow itself to be seen by any standalone fancy floating network device. Anything on the surface will not get depth at any power setting or just by been passive and super sensitive.
      To get depth and detection a new global SOSUS network would have to be fully funded or attempted to uplink from deep depths to a floating drone.
      Think back to all the war games where underfunded, old subs sneak around with gifted crews from 2nd and 3rd rate nations to get into the middle of complex layers of the best surface ships the US can design and win every time :)
      The options are the US is always letting other nations have a happy event or a lot of random nations old subs just understand how to use depth to great advantage.

      --
      Domestic spying is now "Benign Information Gathering"
    2. Re:Advantages by Zak3056 · · Score: 1

      A well designed modern sub would never allow itself to be seen by any standalone fancy floating network device. Anything on the surface will not get depth at any power setting or just by been passive and super sensitive.

      If only there were some way to pull your hydrophones on multi-kilometer long cables and allow them to sink below the thermocline then maybe such a vessel would be useful...

      Think back to all the war games where underfunded, old subs sneak around with gifted crews from 2nd and 3rd rate nations to get into the middle of complex layers of the best surface ships the US can design and win every time :)

      If only there were a way to track submarines using autonomous drones to supplement the destroyers in the carrier's screen you might be able to change that...

      --
      What part of "shall not be infringed" is so hard to understand?
    3. Re:Advantages by AHuxley · · Score: 1

      re "then maybe such a vessel would be useful..."
      "If only there were a way"
      So all the small nations that win during big war games are been allowed to win? So they go home with a feel good win rather than a certificate of participation (detection)?
      Social promotion for the other nations subs efforts? Do they know they are been tracked all the time when trying to be so very sneaky? Or are they still totally fooled into thinking they really got deep into the protected areas with their old subs?

      --
      Domestic spying is now "Benign Information Gathering"
    4. Re:Advantages by Zak3056 · · Score: 1

      I'm suggesting that if what you're saying is correct (and I have no reason to disbelieve you, I know it's been done once already) then beefing up the ASW effort with autonomous drones would likely be an effective countermeasure. The bit about the towed array sonars was in response to your suggestion that subs could just go deep to avoid detection by a surface vessel.

      Drones + towed arrays = improved fleet survival. Enough to matter? Unknown at this point.

      --
      What part of "shall not be infringed" is so hard to understand?
  15. Drone Carrier Anyone? by Anonymous Coward · · Score: 0

    Whats next, an unmanned aircraft carrier for drones?

  16. hm by argStyopa · · Score: 2

    The USs tech advantage is most pronounced in combat aircraft and subs. Enabling a tech that cheaply hunts/kills subs substantially attacks that advantage.

    Not that it would stop development if DARPA didn't do it, but this tech probably has the largest potential to harm the US of any country. Considering our sieve-like computer security and that apparently every advanced tech the US develops seems to be almost instantly aped by China and/or Russia, DARPA's essentially doing research for them.

    --
    -Styopa
    1. Re:hm by ColdWetDog · · Score: 2

      Always cannibalize your own sales. Don't let your competitor do it.

      --
      Faster! Faster! Faster would be better!
  17. How many False IDs will it make? by Anonymous Coward · · Score: 0

    You just know this thing is going to mistake large sea mammals for submarines and kill them.

    How many blue whales, orcas, and other large sea mammals must die before we realize our warmongering is going to destroy our planet?

    1. Re:How many False IDs will it make? by ColdWetDog · · Score: 1

      You just know this thing is going to mistake large sea mammals for submarines and kill them.

      How many blue whales, orcas, and other large sea mammals must die before we realize our warmongering is going to destroy our planet?

      Seaman Jones: [Jonesy is teaching Beaumont] Hear it now?

      Beaumont: [resigned] No.

      Seaman Jones: Beaumont, at Caltech we used to do this in our sleep! You hear it now?

      Beaumont: Wait a minute...

      Seaman Jones: Uh oh...

      Beaumont: Disparaged surface clutter...

      Seaman Jones: Yeeeesssss?

      Beaumont: I should go to SAPS?

      Seaman Jones: Correct! Seaman Beaumont, Signal Algorithmic Processing System. Give it a week and you'll be teaching at Caltech. So, like Beethoven on the computer, you have laboured to produce... a biologic.

      Beaumont: A what?

      Seaman Jones: A whale, Seaman Beaumont, a whale. A marine mammal that knows a hell of a lot more about sonar, then you do. Train her around to 269 and lets try it again?

      --
      Faster! Faster! Faster would be better!
  18. Maritime salvage law by Anonymous Coward · · Score: 0

    Interesting gadget.

    I wonder what the rules are for an unmanned vessel on the high seas.

    That is an international question, so one country can't just make up a new set of rules.
    (This applies both to China building islands, and the US building these boats.)

    If unmanned = abandoned, then it seems like the ship would be fair game.

    If it is following your sub, then perhaps put a swimmer in the water and route the sub so the ship goes to the swimmer.

    They may wish to have the option to have a few folks on board depending on operational concerns.

    1. Re:Maritime salvage law by ColdWetDog · · Score: 1

      Interesting gadget.

      I wonder what the rules are for an unmanned vessel on the high seas.

      That is an international question, so one country can't just make up a new set of rules.
      (This applies both to China building islands, and the US building these boats.)

      If unmanned = abandoned, then it seems like the ship would be fair game.

      If it is following your sub, then perhaps put a swimmer in the water and route the sub so the ship goes to the swimmer.

      They may wish to have the option to have a few folks on board depending on operational concerns.

      This has been discussed at some length (PDF warning). If it is under way and under control, it would not be considered salvageable. Of course, in a war time situation, this isn't the guiding principle, so either the craft is armed for defense or self destruction (or both) as the designers see fit.

      --
      Faster! Faster! Faster would be better!
  19. Big Boats Needed For Big Seas by Anonymous Coward · · Score: 0

    The ocean is a big place; you need lots of power and fuel to travel far.

    The waves in the ocean frequently exceed 20 feet. Your 10 boat would have a very bad day. Ocean going vessels under 100 feet have lots of bad days.

  20. I don't think they are telling us the truth by bobbied · · Score: 1

    We already have the capacity to "track" submarines with a very well placed set of stationary listening stations. This sonar net covers the Atlantic very well and is pretty good in the Pacific. We can routinely track submarines general locations now, and I'm fairly sure we do. So that begs the question, what is this sub-hunting drone thing really good for?

    I don't think we need it to track submarines in the open ocean, but we need to more easily search for them in shallow congested waters. Right now the destroyer is the platform of choice to use on submarines. You send in the destroyers to deal with the submarine threat, but they are large, expensive and easily tracked so everybody knows what you are doing.

    What these things will be for is to go into an area without being detected, sweep the area for submarines and even possibly deal with the threats they find if necessary. All this is to avoid tipping your hand too far in advance so your adversary can get ready, and for detecting what your adversary is doing with his fleet so you can avoid interacting with it until the terms of the engagement are most favorable.

    So this is really an intelligence gathering device that can shoot at submarines if need be. It is just there to observe and report, It's not really an offensive weapon any more than a drone with a missile is one.

    --
    "File to fit, pound to insert, paint to match" - Aircraft Maintenance 101
  21. Just To Be Clear... by Anonymous Coward · · Score: 0

    I don't know. Today's electronics are able to compensate for lack of stability.

    Just to be clear. You're presenting your lack of knowledge as an argument? The fact that you don't know is supposed to invalidate someone else's - valid, by the way - assertion?

  22. The 132-foot-long, 140-ton. Mine Gap! by DarthVain · · Score: 1

    Sounds pretty inconspicuous to me...

    Also sounds like the beginning of a Monty Python sketch... when the countermeasures are to build fake submarine drones for the other drones to follow, and by the end there are just a whole lot of drones following each other in an infinite loop around the oceans to the Benny Hill theme song...