NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Running down an Astro-Position Line
From: David C
Date: 2021 Mar 14, 21:56 -0700
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?