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: Averaging sights on commercial vessels
    From: Alexandre Eremenko
    Date: 2004 Oct 7, 17:17 -0500

    Trevor,
    Thank you very much for your explanation.
    I forgot about Sat Nav indeed.
    Do you know when approximately did they start using it?
    (I suppose, not earlier than late 70-s).
    The manuals I cited were written in the 60-s when
    no Sat Nav existed.
    I am just trying to understand when CelNav was replaced
    by various satellite-based systems as a main tool of finding
    position on commercial and navy ships.
    Alex.
    
    P.S. LORAN only works near a shore, correct?
    The only precise means available in the middle of an ocean
    are CelNav and satellite-based systems, correct?
    A
    
    
    

       
    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