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    Re: lifeboat navigation
    From: Robert Eno
    Date: 2002 Oct 24, 21:11 -0400

    All this discussion of lifeboat navigation prompts me to recommend two
    books:
    
    The Raft Book - Harold Gatty (very likely out of print)
    Particularized Navigation - Francis B. Wright
    
    Excellent books though written before the advent of the evil temptress GPS.
    Repent ye sinners and come to the light!
    
    Robert
    
    
    ----- Original Message -----
    From: R. Walker 
    To: 
    Sent: Thursday, October 24, 2002 11:51 AM
    Subject: Re: lifeboat navigation
    
    
    > > jared.sherman{at}VERIZON.NET
    > > supply of fishing parts. Then we have the case of the two men recently
    > > found off the coasts of the US in their sailboats: The one man off North
    > > Carolina (?) who had drifted up from the Florida Keys, the other man off
    > > South America (!) who had drifted down from California, originally 26
    > > miles from the US coast. Would these men have made any use of a sextant?
    > > Could they have gained any aid from it? Or could they have gained more
    > > substantial aid from some other device?
    >
    > It occurs to me what these guys really needed was oar locks and a pair of
    > appropriate oars.   Adding a 1kt - 1.5kt east or west vector to their
    course
    > made good wouldn't have been the most elegant solution, but in both
    > cases likely would have gotten them within site of land with a few days
    > work.
    >
    > A sextant and tables could certainly provide a moral boost by confirming
    > each days gradual progress, as well as potentially alerting the adrift
    person
    > to an unexpected eddy in the ocean currents that might by accident be
    > running directly counter to the added oar provided vector.
    >
    > So my feeling is that the sextant and accessories necessary to plot
    > position without electrical power stay on the boat; a manual PUR
    > desalinization pump would probably be a better choice for liferaft
    dollars.
    >
    >
    > Richard Walker
    > Conroe, TX
    > http://people.txucom.net/~rwwamtek/kayak_log.html
    >
    
    
    

       
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