5 ms·

Let me express deep solidary and hope for the crew and families. On technical note, I keep wondering with all the technology available (satelites, sonars, airp

• Cyberdog 9y ago
  > how is it possible that they are not able to find / detect it ? The ocean is a very large thing, especially when it needs to be searched in three dimensions.
  • DuskStar 9y ago
    Even more so when the thing you're searching for is intended to be hard to find.
  • icelancer 9y ago
    >>three dimensions This is definitely the big snag people lose themselves on. They are thinking about the search being in two dimensions, like a map. They aren't thinking about lost ships or planes in three dimensions; a formula squared vs. a formula cubed and how much faster the latter gets out of hand.
    • averagewall 9y ago
      But we know it's either on the bottom or the surface right? It needs to use power to balance in the middle somewhere.
      • NikolaeVarius 9y ago
        It doesn't need to use power. Ballast tanks are a thing. But irrelevant to the point. Submarines are designed to be hard to find in an environment which very nature already makes things hard to find due to there being so much "stuff" in the way
        • tbihl 9y ago
          But realistically it's not going to be neutrally bouyant while submerged. Nonetheless, a much harder task than 2-D x2...
• maxander 9y ago
  It’s entirely possible (even probsble) that one or more countries involved have tech that they could be using to find the sub much more easily, but which they’re holding back for strategic-secrets reasons. Many stealth/antistealth techniques seem to rely on the method being kept secret from adversaries.
  • mulmen 9y ago
    Why would they have to reveal the means? Just construct the discovery in parallel with a known technology. Tell everyone that your crews eat a lot of corn and that improves hearing on the sonar headsets.
    • geezerjay 9y ago
      Revealing that they can pinpoint the sub is already enough information to lose that competing advantage.
  • nradov 9y ago
    Improbable. The South Atlantic isn't of much interest to the major naval powers. Most likely none of them have deployed the dense undersea hydrophone networks necessary to have any chance of tracking a submarine.
    • tryingagainbro 9y ago
      I believe it as probable. Say "Submarine found in x waters 145m deep." if this isn't standard, and signals an improvement in current tech, Russia and China will wonder why and start to piece things out. The problem is that sub designers go to great lengths to make them invisible while underwater. So if it's disabled and can't tell where it is, that's a problem, (or feature since it's stealthy.)
      • nradov 9y ago
        There is no basis in economics or physics for that belief. You're just making things up. Military powers aren't omnipotent.
• willvarfar 9y ago
  Anything in deep water is hard to detect. Submarines especially so, because they contain stealth technology to defeat trivial detection. Submarines are stealthy. Very stealthy. She likely has magnets to counteract detection by magnetic anomaly detectors (MAD). Many subs also have anechoic tiles to make them less visible to active sonar (but I don't know if this was the case in this instance). If its sank and the crew aren't able to deliberately make a lot of sound then it'll have to be found by sonar sweeps. This survey can be done by the kind of ship that Russia has sent to help find the sub.
• heeen2 9y ago
  Remember when they lost a whole airliner?