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    Re: US. Navy fix accuracy and Interval.
    From: Lu Abel
    Date: 2013 Mar 28, 08:57 -0700
    William:

    Without asking you to reveal anything classified, how can one survey the bottom without sonar?   And I thought subs didn't run active sonar because that would reveal their position.

    Lu


    On 3/26/2013 3:43 PM, William Hawes wrote:

    Lu,

    I'm sure you can appreciate that even after all these many years since I left the submarinne service, I can't give any details. Suffice it to say that submaines carry "classified" Bottom Contour Charts that allow navigation technniques not available to the general public. These special submarine chart folios were not even carried, at the time (mid 70's), on naval sufface ships.

    Guess what submarines are doing when they are not firing missiles - they are bottom surveying,

    wmh


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