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    Re: Averaging sights on commercial vessels
    From: Stacy Hanna
    Date: 2004 Oct 7, 18:49 -0400

    Navy ships started using Sat Nav in 1962 or 1964 depending on the source
    you use. It was released for commercial and public use in 1967 however
    it was the early to mid 70's before its use outside of the military
    became widespread due to the cost of the receivers.
    
    -----Original Message-----
    From: Navigation Mailing List
    [mailto:NAVIGATION-L{at}LISTSERV.WEBKAHUNA.COM] On Behalf Of Alexandre
    Eremenko
    Sent: Thursday, October 07, 2004 18:18
    To: NAVIGATION-L{at}LISTSERV.WEBKAHUNA.COM
    Subject: Re: Averaging sights on commercial vessels
    
    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
    
    
    

       
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