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    DR plotting techniques
    From: Doug Royer
    Date: 2003 Oct 16, 11:14 -0700

    I would like to ask the members of the list who sail or pilot power vessels
    how or what techniques they use to find their DR pos. while underway.I am
    only interested in what methods you use and don't wish to get into a
    discussion of accuracy as yet.
    1.Do you use paper charts,rules and dividers?
    2.Do you use mathematical methods such as the following:Lat=Lf + -
    e[S/60(cos T*)] ; Lon.=Lon.f + - e[S/60(sin T*/cos Lf)]
    3.Do you use chatplotters and gps?
    4.Do you use a computer or laptop with navigation software and gps?
    5.Do you use gps only?
    6.Any other method not listed above or a combination of the above.
    Steven,thanks for telling me your training.In future conversations I now
    have a baseline and know how to frame my questions or discussions with
    you.By the way,thanks for the work you did on the Lunar files.I hope to make
    some use of them.
    Jared and Dave,I'll get the brand name of the LED nav. lights when I get to
    the yard this week to work on the skiff and post that info.

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