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: Traditional navigation by slide rule
    From: Gary LaPook
    Date: 2016 Oct 26, 02:01 -0700

    There are several errors in your example on page 45 and I have attached two computations one with the Bygrave and one with a calculator. 

    At the beginning you exhanged starting latitude with destination latitude The your calculation of the Az and Hc went wrong somewhere.

    I notice that you use my notation for 90 degrees as 89-60 to make subtraction easier but you might like to mention that as an introduction.

    That is the only part of your manual that i have had the chance to look at.

    gl

    gl



    File:



    File:



       
    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