NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Frank Reed
Date: 2010 Nov 7, 01:18 -0700
Gary, you wrote:
"The case for my 2102-D is marked 2101-D, was there a model with that name and what were the differences?"
I don't know, but I would bet my chips on a printing error on the case. Earlier versions of the Rude Star Finder were 2102-A,B,C. I haven't seen any of these that I can recall, but I understand they were different sizes (the A was the largest?). It's hard to imagine how an organization like the Hydrographic Office could go from 2102-D to 2101-D, but a printing screw-up... Now that's easy to imagine!
By the way, no doubt it's been mentioned, but the Rude Star Finder is a special case of a "planisphere". Lots of companies make these for various latitudes. Amazon.com sells a bunch. They're easier to use than the Rude Star Finder --literally child's play (in part because they don't usually worry about the difference between Zone Time and LMT). They don't come with alt-azm overlays (just a horizon "porthole"), but that sounds like a perfect job for your color printer and some transparencies, Gary. :)
-FER
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