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    Re: AP terminology, WAS: 2-Body Fix -- take three
    From: Geoffrey Kolbe
    Date: 2009 Nov 13, 22:10 +0000

    Karl wrote [Navlist 10635]
    >So I'll put my question yet another way:  Why is the St Hilaire method
    >superior to Sumner's and consequently the only one used today??
    Karl, you answer this very succinctly on page 30 of your book (1st
    edition). You said that the St Hilaire method is the most efficient
    and robust method for two (or more) body fixes. I agree.
    Back in your posting [NavList 10593] you said that there is no
    generic word for the apex of the St. Hilaire navigation triangle
    between the coH side and the coLat side. Well, St. Hilaire himself in
    his "Note on the determination of position" generally called it the
    estimated position.
    You asked [NavList 10593] "Why does the St. Hilaire method use a CP
    instead of just calculating the LOP directly?" I am puzzled. How
    would you calculate the LOP "directly"?
    Geoffrey Kolbe
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