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    Re: Running down an Astro-Position Line
    From: David C
    Date: 2021 Mar 14, 21:56 -0700

    Can someone  explain the meaning of "running down a position line". To me it can have one of two meanings. Firstly in the Sumner sense a navigatior  is travelling  on the same azimuth as the position line. This Sumner did and he arrived at Smalls light.

    Alternatively there is what I think of as the Chichester method. The navigator is travelling at right angles to the position line. When ho = hc he knows the azimuth of his destination. This Chichester did and arrived at Norfolk Island.

    Maybe I am being pedantic or perhaps I am confused?

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