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: 3 sights SR example
    From: David Pike
    Date: 2017 Jun 30, 06:53 -0700

    To illustrate what I meant in my earlier post today.  In the diagrams below, my DR position, assumed position, and actual position are coincident, but unknown to me, my sextant is under reading by the width of the ridge of my ruler.  With azimuths of 360, 045, and 090, the results suggest a reasonable fix and a deteriorating DR position.  However, using star D whose azimuth is 225 instead of star B, the results suggest further investigation required around what might be a reasonable DR position.  I apologise if I’m stating the obvious, but as I've said before, if I can draw it, I ought to be able to understand it.  DaveP



    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