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    Re: Sextants in Coastal Piloting
    From: Derrick Young
    Date: 2000 Aug 18, 2:20 PM

    Russell,
    
    I am not sure what is happening with the GPS in some areas.  There are (that
    might be were - at least when S/A was turned on) areas where GPS would
    indicate as much as 20 miles off.  One of these areas was the lower
    Chesapeake Bay and another in St. Louis.  If you were piloting using GPS,
    you were in trouble.  So, break out the LORAN (that still works) or the
    sextant.  Take your horizontal angles and you know where you are.
    
    The reason that I am not sure is the current status, is that I have not been
    out on the C'Bay since S/A was turned off - I will be going out in the next
    couple ow weeks - will let you know what I find.
    
    d
    
    -----Original Message-----
    From  Russell Sher [mailto:rsher{at}tellumat.com]
    Sent: Friday, August 18, 2000 2:49 AM
    To: 'Young, Derrick'
    Cc: 'NAVIGATION-L{at}LISTSERV.WEBKAHUNA.COM'
    Subject: RE: Sextants in Coastal Piloting
    
    
    Derrick - why wouldn't GPS work very well in some areas as you mention
    below?
    
    regards
    Russell
    
    Derrick wrote.........
    Carl,
    
    Yes, I do teach sextant work for coastal piloting.  It is very useful for
    determining where you are (as you know) in areas where LORAN and/or GPS
    don't work very well.  For example some areas off the Virginia coast line
    and in the lower Chesapeake Bay. (more...)
    

       
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