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    Re: Will anyone ever find Shackleton's lost ship?
    From: Howard G
    Date: 2022 Mar 10, 14:06 -0800

    Hi Bruce

    I suspect - but don't know exactly the technology in the UAV - but look up intertial platform - or if you are in the know - intertial platforms have come a long way since their invention in the 1950s.

    We had on the P3B Orion had an AN/ASN-42 - and the beauty of the intertial is it is completely (in its original state) inert - passive and once aligned at startup - which took 30 -40 mins (nowadays minutes) - but once you align an intertial it can maintain its actual position very accurately without any input rom outside information.

    I believe this is what modern subs use - and do not need to re-align for sometime.

    Regards

       
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