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
    or...
       
    Reply
    Re: Traditional navigation by slide rule
    From: Gary LaPook
    Date: 2016 Jan 12, 00:14 -0800

    I am a ttaching an image of the K&E 4080-3 that has the trig scales marked in minutes instead of decimal degrees since i think this system of marking makes more sense for a celnav slide rule that you are planning to create. These marking are more precise in that, depending where you are on the scales, there are more subdivisions, e.g. 12 marks, one every 5 minutes virsus only 10 marks, one every tenth of a degree (6 minutes.)

    I have also attached an image of a Pickett slide rule. I find it much easier to read the scales on my K&E 4080-3 than the similar Pickett N 3 T which is marked in decimal degrees. 



    File:



    File:



       
    Reply
    Browse Files

    Drop Files

    NavList

    What is NavList?

    Join NavList

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

    Email Settings

    Posting 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