Welcome to the NavList Message Boards.

NavList:

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

Compose Your Message

Message:αβγ
Message:abc
Add Images & Files
    Name or NavList Code:
    Email:
       
    Reply
    Re: Fw: Chichester's Calculations ( Sine-Cosine method)
    From: Hewitt Schlereth
    Date: 2008 Dec 15, 11:49 -0400

    Thanks, Gary and Yay for Capt. Phil! His time-sight method is what I
    carried for backup after I got my Tamaya NC-2 and before I had my
    cut-down of 229. Weems was quite a pioneer in developing simplified
    methods of sight reduction. I wonder why he isn't mentioned much these
    days. -Hewitt
    
    On 12/15/08, Gary J. LaPook  wrote:
    
    
    
    > I am attaching an example of the same computation done with Weems Line
    >  Of Position Book which provides the shortest solution of all the tabular
    >  methods. This requires only three entries to the tables to find Hc and
    >  then the azimuth is found by Rust's diagram. The example requires only
    >  two pages because two of the values are found on one page. See attached
    >  files.
    
    >  gl
    
    
    

       
    Reply
    Browse Files

    Drop Files

    NavList

    What is NavList?

    Get a NavList ID Code

    Name:
    (please, no nicknames or handles)
    Email:
    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:

    Email Settings

    NavList ID Code:

    Custom Index

    Subject:
    Author:
    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