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: The spirit of Marcq St.-Hilaire
    From: Nigel Gardner
    Date: 2001 Jul 10, 1:54 AM

    Herbert Prinz' commentary on the origin of the 'Intercept Method' and Capt
    St Hilaire one could well call a bombshell thrown into the navigation
    world.
    
    All the commentaries that I have connect St Hilaire with the intercept
    method, for example F.C.Cross in 1910 in describing the Intercept method
    calls it the Marc St Hilaire method (commonly called New Navigation), Lecky
    heads a chapter with 'Finding the Sumner or Position line by the St Hilaire
    or Intercept Method' (this incidentally highlights the common practice at
    the end of the 19C of calling any astro. position line a 'Sumner line').
    Harbord says ' This method was, for many years known as "New Navigation",
    and was introduced by Capt. Marcq St Hilaire, of the French Navy. It is now
    usually termed the "Intercept" method, after its prominent characteristic.'
    and so on
    
    Perhaps Herbert could quote his primary sources so that we could read them
    for ourselves.
    
    
    Harking back to my note that sparked off the recent correspondence on
    lunars which was:-
    Anyone out there with a good algorithm and process for longitude by lunars?
    George Huxtable quite rightly gently took me to task for being rather too
    general and the question I actually had in mind was:-
    In the absence of tabulated LD's, is it possible to establish longitude by
    means of currently available ephemeris (Nautical or Astronomical Almanacs),
    log. tables and a sextant? And of course without the use of calculators or
    computers. So far Dan Allen's response seems to be the most 'user friendly'
    but I have not yet had the opportunity to try it.
    
    NG
    

       
    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