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: Mirror Artificial Horizon -- Revisited Once Again
    From: David Fleming
    Date: 2012 Sep 20, 19:04 -0700

    I have had good results with the following setup.

    I glued a lithography photomask ( essentially a high quality flat front surface mirror ) to a similar sized block of wood. I drilled the wood block to take the mounting screw from a photo tripod.

    On the tripod, I adjust the level in several ways that work.

    1) use a small trysquare bubble level. level rotate 180 and see that it reads the same. Then do again in perpendicular direction.

    2) a second way is to observe a plumb bob string beside the mirror. String and reflected string should be continuous not angled. Do from perpendicular sides.

    I would guess that any mirror will do. Use whatever you can find around. At worst you can buy a quality mirror if it doesn't work.

    Dave Fleming

    NavList message boards and member settings: www.fer3.com/NavList
    Members may optionally receive posts by email.
    To cancel email delivery, send a message to NoMail[at]fer3.com

    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