NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Micrometer vernier
From: Frank Reed
Date: 2018 Apr 17, 10:03 -0700
From: Frank Reed
Date: 2018 Apr 17, 10:03 -0700
What's the history of the small vernier scale on sextant micrometers? It seems to be mostly un-necessary, but new navigators tend to buy their sextants early in the game, when they don't know much. I suspect the illusion of additional accuracy helps sales. Or maybe the small vernier became popular from USN practice? Navy Mk. II sextants had that little vernier, if I remember correctly.
Frank Reed
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