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: Calculator v. Slide Rule for Ex-Meridian Correction
    From: Frank Reed
    Date: 2016 Jan 3, 12:08 -0800

    The method Letcher describes for clearing lunars is a simple, efficient variant of the standard series method. Of course, I have pointed this out many times over the years. You can read a basic version of it in my Easy Lunars essay (originally posted for NavList way back in 2004). The series method requires only three significant figures anc can easily be worked on a slide rule (if one is compelled to apply an obsolete technology in a fashion which was never employed historically). You may also get something from my post on the math of clearing lunars which I wrote up for NavList last June.

    Frank Reed

       
    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