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    Re: A Complete Navigation Log: Thoughts on What Might Be Included
    From: Brad Morris
    Date: 2009 Feb 3, 12:45 -0800

    Hi
    
    In my humble opinion, there is a quintesential approach that will "win points".
    
    Get yourself a pre-1975 copy of Dunlap's "Navigation and Piloting". Pre-1975 
    since it predates GPS.  Dunlap was used (may still be) at the US Naval 
    Academy.  Look at the section describing a day's work for the navigator. 
    Follow it, to the letter.
    
    The section describes exactly what would be required of a US Naval vessel in 
    pre-GPS days.  It will include such tidbits as the pre-calculation of 
    observable bodies for the morning and afternoon twilights, remember to 
    include the navigable planets.  Use your 2102-D. Other tidbits will be 
    swinging the compass to determine deviation via azimuth and or amplitude 
    sights.  Another would be preparation for LAN and the LOP associated with it. 
     There is much to learn!
    
    Dunlap is readily available on eBay, usually for less than $20 including shipping.  
    
    One other approach is to look at Bowditch, 1800's.  He describes how to 
    maintain a navigational logbook.  This approach would include lunars and etc. 
     Certainly, that will differentiate you, however be careful to practice 
    before you use it.  As you can see from many listings in the NavList, there 
    is a sensitivity in measurement.  Getting it "wrong" may actually detract 
    from your log.
    
    Anyway, that's just one person's opinion.  And like belly buttons, we all have one!  
    
    Good Luck in your endeavors.
    Best Regards
    Brad
    
      
    
    
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