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
    Name or NavList Code:
    Re: minus index corr better than plus
    From: Paul Dahlgren
    Date: 2000 Jul 25, 18:05 EDT

    Message text written by INTERNET:bhudson@XXX.XXX
    You don't have to live with 2' off the arc, simply remove it.
    Barrie Hudson
    I like to keep a couple of minutes error on the arc at all times.  If one
    tries to adjust the error out completely, with changes in ambient
    temperature, etc, the instrument could easily end up with an error off the
    arc.  I find that the step of having to read the drum and subtract from 80'
    to find the error is one extra place to mess up.  Since I don't need any
    more of those, I like to stick with the positive error, which is simple
    enough to subtract from the sextant height.
    Paul Dahlgren

    Browse Files

    Drop Files


    What is NavList?

    Get a NavList ID Code

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

    A NavList ID Code guarantees your identity in NavList posts and allows faster posting of messages.

    Retrieve a NavList ID Code

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

    Email Settings

    NavList ID 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