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
    Bearings, Courses, Headings, and Tracks
    From: Dan Allen
    Date: 2002 Feb 5, 15:28 -0800

    From the American Heritage Dictionary are the following quite
    ambiguous definitions:
    
    bearing n.
      Direction, especially angular direction measured from one
      position to another using geographical or celestial reference lines.
    
    course n.
      1. Onward movement in a particular direction; progress.
      2. The direction of continuing movement: took a northern course.
    
    heading n.
      The course or direction in which a ship or an aircraft is moving.
    
    track n.
      A path along which something moves;
      a course: following the track of an airplane on radar.
    
    Here are my own definitions that I use to keep things straight in my
    mind, and they correspond to Garmin GPS labels as well! ;-)
    
    The **course** is the direction you want to go from postion A to B.
    One is rarely on this line, especially in a car.  It is the theoretical
    "as the crow flies" path, with a constant compass heading.
    
    The **bearing** is where B is with respect to your current position.
    It has nothing to do with A.  It has everything to do with answering
    the question "which way do I need to go right now in order to get to B"?
    
    The **track** is the current compass direction you are heading.  The
    track has nothing to do with where A or B is with respect to you.  It
    is only about what direction you are currently going.
    
    I don't use the word **heading** much for the reasons that were pointed
    out by Jared Sherman.
    
    Dan
    
    Daniel K. Allen
    mailto:danallen46---bi.com
    http://home.attbi.com/~danallen46/
    
    
    

       
    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