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: St Hilaire not Iterative was: Finding The Symmedian
    From: Andrew Nikitin
    Date: 2010 Dec 24, 19:02 -0800

    George Huxtable wrote:

    > "On the other hand, if you are not using formula and using plotting
    > techniques to find fix, this means that your are probably using tables and
    > recalculating az and Hc would double your work. So you should be diligent
    > and spend your valuable time doing something more productive."
    >
    > I don't follow that logic. It depends if you are prepared to accept
    > inferior results in some situations. A navigator using graphical techniques
    > is likely to recognise those situations and reiterate. A user who is simply
    > taking numbers from a computer may well be doing so blindly.

    I will try to explain.
    A navigator using plotting techniques introduces greater errors
    which stem from these techniques (placing a ruler, drawing line along its
    edge are not exact operations, especially on a small cluttered badly lit
    table which rocks back and forth). Assuming your AP is within a degree,
    the error introduced by Hilaire method would be smaller then the errors
    introduced by the act of plotting lines. Doing second iteration would be
    a waste of time.

    > On quite another topic, Andrew Nikitin is a new name to me, and if I'm
    > right, these are his first postings to Navlist. They show that he has a
    > thoughtful turn of mind, and is knowledgeable about the very matters that
    > we so enjoy arguing about on this list. May I offer a warm welcome to him,
    > and hope we will see much more from his keyboard.

    Thanks for kind words, George. I've been reading the list for a past few
    years on and off and I make occasional post or two now and then.
    I've learned a lot from this list. And it is a place like no other.

    Andrew Nikitin

    ----------------------------------------------------------------
    NavList message boards and member settings: www.fer3.com/NavList
    Members may optionally receive posts by email.
    To cancel email delivery, send a message to NoMail[at]fer3.com
    ----------------------------------------------------------------

       
    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