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    Re: 'pacing' for boat speed
    From: UNK
    Date: 2011 Apr 14, 02:39 -0700

    apacherunner wrote: "�finding boat speed by counting the time it takes a piece of flotsam to move along the hull."

    I know that as the "spitlog". I think moist snuff was preferred as "instrument".
    It is very easy to calculate and use in the metric system.
    1kn = 1nm / 1hour = 1852m / 3600s = 0,51 m/s ≈ 0,5 m/s.
    Thus for a boat: Speed (kn) = 2*Length (m) / Time (s).
    For my boat, 10m, I divide 20 with time in seconds.
    It can't be used on short high-speed boats.

    Paul Werner

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