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    Re: Azimuth Formula Questions
    From: Dan Hogan
    Date: 2005 Nov 2, 14:23 -0800

    HO 208 divides the navigational triangle MPZ into two angles by droping a
    perpendicular ZD from the observers Zenith upon the circle of declenation.
    Called "a".
    
    From H.O. 208, Fifth Edition, 1935
    
    Price listed as $1.20
    
    Dan Hogan
    dhhogan1---.net
    
    
    > [Original Message]
    > From: Bill 
    > To: 
    > Date: 11/2/2005 12:47:39 PM
    > Subject: Re: Azimuth Formula Questions
    >
    > Doug wrote>
    >
    > > Both systems(208 + 211)are
    > > based to reduce sights by using t(MA)instead of the way the newer
    tabulation
    > > methods,except HO-214,are formatted. What is really nice about the
    HO-211
    > > system is a person only needs the HO-211 data book (35 pgs) and a NA to
    > > reduce sights from any band of latitude. One can forget about carrying
    all
    > > the volumes of the newer systems onboard. And both are just as
    "accurate" as
    > > are the newer tabulation methods of sight reduction "in the real world".
    >
    > Thank you all.
    >
    > If I understand, HO211 divides the triangle into 2 right triangles.  Is
    that
    > the case with 208 as well?
    >
    > My regular cruising waters are the Great Lakes. Because of the proximity
    of
    > shores, light pollution from Chicago etc., my initial choice was 229 over
    > 249 as 229 appeared to offer more choice in body selection.  There
    certainly
    > is a case to me made for one small volume.  My cruising grounds (Great
    > Lakes) require two 229 volumes.  Head south and I need a bookmobile to lug
    > them all;-)
    >
    > With Lake Michigan boats now on the hard, and dinghy sailing/racing about
    > done for the season, I hope to learn more about 208/211 when the snow
    flies.
    >
    > Bill
    
    
    

       
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