Welcome to the NavList Message Boards.


A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

Compose Your Message

Add Images & Files
    Re: Wind & Current Navigation
    From: Peter Fogg
    Date: 2003 Apr 17, 12:52 +1000

    ----- Original Message -----
    From: "Dan Allen"
    > How does one weight the effects of wind and weight the effects of
    > current?
    > How do the size, shape, and mass of the boat and the hull, and the
    > superstructure (masts, flying bridges, etc.) effect these relative
    > forces?
    Its an interesting question and I'm not sure I know the answer, except in my
    experience, as here, current does seems to have a disproportionate effect.
    In a channel where the tide is acting on a buoy its always impressive how
    current, that would seem to be mild, makes the buoy strain at its chain,
    building up a little bow wave. The wind doesn't seem to have any effect.
    I guess its because the current has an absolute effect, it moves the boat at
    the speed of the current.
    By contrast, the wind tends to mostly flow around the boat, so even if its
    speed is greater its effect is a lot less.

    Browse Files

    Drop Files


    What is NavList?

    Join NavList

    (please, no nicknames or handles)
    Do you want to receive all group messages by email?
    Yes No

    You can also join by posting. Your first on-topic post automatically makes you a member.

    Posting Code

    Enter the email address associated with your NavList messages. Your posting code will be emailed to you immediately.

    Email Settings

    Posting Code:

    Custom Index

    Start date: (yyyymm dd)
    End date: (yyyymm dd)

    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site