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T&T: Digital Nautical Charts (from NGA)

From: Dave Legrow (no email)
Date: Wed Aug 02 2006 - 03:21:08 EDT

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    Gordon

    The RTP files are patch files - not the masters. They only
    work to update the master set and are not usable by
    themselves.

    As far as I know, these charts, while not classified, are
    not available to nongovernment entities. (and if I am wrong
    - I am sure someone will let us all know - 'cus we all like
    free charts)

    For those who want to investigate further the url is:

    http://www.nga.mil/portal/site/dnc/

    Dave Legrow
    T'III

    I've just downloaded some charts from the NGA web page but
    I can't open
    them. Their extension is "RTP". I thought I had installed
    a program to
    open these but now I can't find it (or maybe I just thought
    I installed the
    program).

     

    I've search Google and tried to find the answer on the NGA
    site to no avail.

     

    Can anyone out there give me a hand?

     

    Gordon
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