Don Casey - Dragged Aboard Storm Tactics Handbook:
Modern Methods of Heaving-To for Survival in Extreme Conditions
by Lin Pardey and Larry Pardey


      

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Re: Beginner

From: Geoffrey Kolbe (no email)
Date: Sat Sep 10 2005 - 17:08:15 EDT

  • Next message: george huxtable: "Re: Request for computer help."

    At 18:13 10/09/2005, Willem Piccer wrote:

    >I was just re-reading the discussion on the problems Asbjorn had and I
    >wonder if the whole problem is not caused by the gps position used.
    >Especially because he states that the observation height is always less
    >than the calculated height.
    >I have the feeling that the chart datum chosen plays a role
    >
    >Willem Piccer

    The latitude and longitude which Asbjorn's GPS deduces for Trondheim (where
    Asbjorn says he took the sights) agree with that given in various atlas's
    and gazetteers that I have to less than a minute. A glance at the atlas
    shows that a position five miles North and East of Trondheim (where Asbjorn
    would have to be to get an observed altitude 5 minutes less than
    calculated) would put him in Trondheims Fjord....!

    Asbjorn would appear to be where he thinks he is.

    Geoffrey Kolbe


  • Next message: george huxtable: "Re: Request for computer help."



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