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: Compasses
    From: Peter Fogg
    Date: 2002 May 30, 08:18 +1000

    Martin Gardner wrote:
    > Are fluxgates subject to the same deviation error sources as real magnets?
    Don't know anything about fluxgates, but the known azimuth of any celestial
    body will give you a check on compass accuracy. Bodies on or near the horizon
    are easy to read.
    Am presuming that magnetic variation is not an issue. A compass adjuster earns
    his living by coming on board and attaching tiny magnets around your binnacle
    to counter any deviation and give it, as far as possible, a neutral deviation.
    Sailing boats often have their motors under the cockpit, which doesn't help.
    Another culprit can be the sheath knive kept strapped to the binnacle.
    Compasses are not created equal - go into a store that has a few for sale and
    observe how they fail to agree with each other. A final tip I aquired recently
    - store your handheld upside down to minimize wear of the turning bearing.

    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