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    Re: DR plotting techniques
    From: George Huxtable
    Date: 2003 Oct 18, 00:13 +0100

    Doug Royer said-
    
    >OUTSTANDING George!!! You just answered what was to be my next question(and
    >ultimate goal)after this question was tabulated.You are the 1st to say you
    >correct your charts!!I know that was not in the original question but Bully
    >on you!
    >Part of my duties were to correct all the charts,and log all corrections in
    >the ships log,as required.
    >In the last year most of the vessels I've gone aboard on don't and by the
    >looks of their paper and electronic charts most likely have never done this
    >important task.
    
    Doug, my wife would be most indignant to read that! I didn't claim that I
    corrected my charts, I said that she did. And most efficiently too, if I
    may say so. If it was left to me, I probably wouldn't bother.
    
    I should add that not every correction actually gets made, on our charts.
    Sometimes things change that are clearly irrelevant to small craft, and
    then they are just ignored: except that the correction number is always
    entered in the margin, to maintain the link in the chain of corrections.
    
    Stacy Hanna said-
    
    >Actually getting the corrections off of the web is easier than ever. For
    >US notice to mariners the website is
    >http://pollux.nss.nima.mil/index/index.html and for British Admiralty
    >notices use  http://www.nmwebsearch.com/ . The US website is currently
    >down while they work on it but will probably be back up later this
    >afternoon. Both websites let you search for corrections by chartnumber
    >so you only have
    >to pull up the ones you actually need.
    
    I still get weekly Admiralty Notices to Mariners posted to me. These used
    to be free (you just paid postage). Now they cost ?2 (about $3) a time,
    plus postage, which has also got more expensive, as they are now so
    expansive, big and heavy, lots of wasted space..
    
    I have tried using the Admiralty nmwebsearch site instead of weekly
    notices, but have given up on that. One problem is my slow dialup
    connection at 14 kilobaud which I should do something about anyway. But
    there's a bigger problem, and I'm not sure how others overcome it.
    
    It's this. Over the course of a week, usually there will be corrections
    arising for only, say 4 charts out of the 80 or so that I hold. But to find
    that out, I need to go into a dialogue with the website 80 times,
    effectively asking for each- "Has there been an amendment to chart A?":
    "Has there been an amendment to chart B?": and so on, for 80 charts. Most
    of the time, the answer will be "No". It just isn't efficient or
    acceptable.
    
    What is needed is the ability to download to the Admiralty a list of the 80
    charts that I own, which they can then hold, although I should be able to
    request changes to that list when I buy new ones or retire old ones.
    
    And then, I could just ask "Please download all amendments to any charts in
    the list that you hold in my name, since week xx". Then, they would all
    come in one go. Perhaps this can be done, but if so I haven't discovered
    how.
    
    George.
    
    ================================================================
    contact George Huxtable by email at george---.u-net.com, by phone at
    01865 820222 (from outside UK, +44 1865 820222), or by mail at 1 Sandy
    Lane, Southmoor, Abingdon, Oxon OX13 5HX, UK.
    ================================================================
    
    
    

       
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