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    Re: Optimal HoE?
    From: Brad Morris
    Date: 2019 Aug 19, 14:46 -0400
    Tony

    Some thoughts to ponder

    The smaller the HoE, the greater the sensitivity.  The accuracy of determination of HoE becomes more critical as the value becomes smaller.  1 meter is very low to the water. Meaning great sensitivity.  How did you measure this??  

    Secondly, are you accounting for tide?  I am sure you are, but this can have a significant affect on HoE.  Yachts will not be affected by this, but you will.



    On Mon, Aug 19, 2019, 2:33 PM Tony Oz <NoReply_TonyOz@fer3.com> wrote:

    Hello!

    I'm yet to take a sight on a boat, mostly I do my lessons sitting on a bench at ~3~5 meters above the water on a solid shore.

    Because there are a lots of people on the beach - I found a more quiet place - a boulder groyne going some distance off the shore. There I sit at ~1 meter HoE.

    In the very same weather conditions (almost glass-like water, no wind, no unusual refraction etc) I seems to get relatively big[ger] intercepts. From the higher shore I normally get into 0.2~0.3nm off my GNSS position. From the groyne I got almost a mile: 0.7~1.1nm off.

    Is it a coincidence or is there a rule?

    What is the usual HoE value on a one-mast yacht?

    Warm regards,
    Tony

    60°N 30°E

       
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