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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

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    Re: Most commonly used/preferred sextant among NavList members
    From: David Pike
    Date: 2015 Feb 1, 13:06 -0800

    You can always make your own.  Around 1982, I had to make something as my final testpiece for my Post Graduate Certificate in Education as a tyro Craft, Design, and Technology teacher.  I'd always regretted allowing my mother to give my father's marine sextant away, and even the plastic ones seemed very expensive, so I decided to make my own out of plywood.  The trick is to make it big, as people like Tycho Brahe found.  Then cutting the scale is easy.  I seem to remember the technician in the workshop showing me how to use a dividing engine as a lathe attachement, but I'd never be able to remember how to use it now.  I recall shooting stars on a bowl of water on a still night and being surprised to find the Hs was double what I'd expected.  Taking instant values compared to always using an averager were also a pleasant surprise.  I've got the shots I took somewhere around. As I recall it was accurate to 2 or3nm.  My problem is no natural horizon.  As soon as I get my new artificial horizon working, I'll have to start playing with the plywood again.  Dave 



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