Welcome to the NavList Message Boards.


A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Position-Finding

Compose Your Message

Add Images & Files
    Otis King Sight Reduction
    From: Greg Rudzinski
    Date: 2017 Oct 8, 11:10 -0700

    The Otis King slide rule has been promoted to my sextant box kit as an excellent non electronic sight reduction tool when used in conjuction with natural sin /cos tables. I was able to perform mistake free sight reduction from the get go to a respectable precision between 1' and 2' . The K model can be had for about $40 on ebay. 

    Golden Globe Race Captains take notice.

    Greg Rudzinski

    Attached File:

    Attached File:

    Attached File:


    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