Welcome to the NavList Message Boards.


A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

Compose Your Message

Add Images & Files
    Running fix course.
    From: Byron Franklin
    Date: 2009 Dec 22, 14:11 -0800

    The running fix, certainly if other fact are know, they should be
    Estimates are not of certain, so should be closely monitored.
    I would use both TRF & ERF and DR., but pick the one closer to danger
    to watch.
    If course, speed or distance is known use it.
    An old way to find course, when three LOP�S are plotted from one
    NAVAID with out a change of speed or course (BRG. Time must be the
    same for each LOP.)
     Let�s use an idea known to all. This is the BOW-BEAM & QUARTER.
    This will work with any RFIX.
    WE don�t know it but we are heading NORTH or this could be relative
    Off the STBD bow {at} 045 We plot 1st LOP.
    Off the beam will plot 2nd 090 LOP?
    Off the Quarter we plot 3rd 135 LOP.
    I think we all know the answer is distance run between bearings is
    distance off NAVAID at 090 Beam.
    No set and drift for this can problem. If we used a TRF we would have
    a tree pointer at LOP 135.
    Using the tree LOP�s, Let us find the course, we are on.
    We set the dividers at any spread larger than the distance between LOP
    1 and LOP 2.
    We mark the LOP1 at the point of the divider (A) at LOP 2 we mark the
    other point (B).
    Using the same spread and parallel to (A&B) we place the dividers
    between LOP2 (C) & LOP3 (D.)
    A line drawn from A to D is your course. Your speed and distance is
    the only part left.
    NavList message boards: www.fer3.com/arc
    Or post by email to: NavList@fer3.com
    To unsubscribe, email NavList+unsubscribe@fer3.com

    Browse Files

    Drop Files


    What is NavList?

    Join NavList

    (please, no nicknames or handles)
    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 Settings

    Posting Code:

    Custom Index

    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