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losing power, power going off? certainly they lost the power that enabled them to communicate with the surface ship that was supporting them. and the communication systems went down, there are two primary ones, navigation system, because officially there is no gps once you get into the water. the radio signals from satellites don't penetrate the water, so what you haveis penetrate the water, so what you have is an acoustic system the shipping is the sub, so the ship has got gps so it knows where it is and it knows where the sub is relative to its commander so it can direct the sub and so you need to go right because the titanic wreck is over there. but then they also have a short messaging system, bit like a text message on a mobile phone, and they communicate between the sub and they communicate between the sub and the surface support vessel through that. both of those systems seem to have gone down. and that's why they haven't been able to contact. truth? haven't been able to contact. why would both _ haven't been able to contact. why would both systems go down? haven't been able to contact. why i would both systems go down? that's interestin: , would both systems go down? that's interesting, all— would both systems go down? that's interesting, all of _ would both systems go down? that's interesting, all of the _ would both systems go down? that's interesting, all of the experts - would both systems go down? that's interesting, all of the experts i i interesting, all of the experts i have spoken to say they should be