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    Re: Meridional Distances
    From: Vic Fraenckel
    Date: 2002 Sep 17, 20:30 -0400

    Am I missing something in this discussion? (Most likely)
    
    If you know the latitude and longitude of your departure and arrival points
    why not just calculate the ellipsoidal azimuth and distance from one to the
    other directly?
    
    Vic
    ________________________________________________________
    
    Victor Fraenckel - The Windman                 vfraenc1{at}nycap.rr.com
    KC2GUI                                                      www.windsway.com
    
          Home of the WindReader Electronic Theodolite
                                   Read the WIND
    
    "Victory at all costs, victory in spite of all terror, victory however long
    and hard the road may be; for without victory there is no survival."
    - Winston [Leonard Spencer] Churchill (1874 - 1965)
    
    Dost thou not know, my son, with how little wisdom the world is governed?
    -Count Oxenstierna (ca 1620)
    
    ----- Original Message -----
    From: "Chuck Taylor" 
    To: 
    Sent: Tuesday, September 17, 2002 12:20 PM
    Subject: Re: Meridional Distances
    
    
    | >
    | > Although I have tables accurate to 2 decimal places for the Meridional
    | > Parts, the Meridional Distances come only in whole degrees, so need to
    | > be interpelated for in-between values.
    |
    | Peter,
    |
    | Bowditch has tables of Meridional Parts to quite a number of decimal
    places.
    | The method for computing distances using Meridional Parts is called
    "Mercator
    | Sailing" and is also described in Bowditch.
    |
    | The introduction to the tables in Bowditch gives a formula for computing
    | Meridional Parts.  I have programmed this into a calculator.  One could
    also
    | program it into a spreadsheet.  If memory serves me correctly (I'm away
    from my
    | home library) there is a typo in the formula in Bowditch 95, but Bowditch
    80/84
    | Volume 2 has it right.
    |
    | Best regards,
    |
    | Chuck Taylor
    | Everett, WA, USA
    |
    
    
    

       
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