NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Alan S
Date: 2013 Mar 9, 08:38 -0800
Antoine Couëtte, Peter Hakel:
I ran Jeremy's first set of data, the ones for 13 January 2013 manually, with a calculator and Nautical Almanac Daily Pages, and LOC Method. When I reduced the sights and plotted the results, using 5 LOP's, I ended up with 2 triangles, one of which was rather large, the other smaller and falling inside the larger Using only 3 out of the 5 LOP's would eliminate one of the triangles, alas the question of which ones to ignore or delete remains.
Using the USPS CLS PLOTTING SHEET, WITH 5 lop'S makes for difficulties in plotting and then my plotting/drafting skills have gotten somewhat rusty. I've had the CLS sheet enlarged and printed out, quite a bit larger than the original, which might help, sort of akin to going from a 5" slide rule to a 10" or longer one.
Normally my sextant shots are limited to using an artificial horizon in the parking area of the apartment colples where we reside, or shooting across the Monongahela River looking South and using dip short correction. I do get down to the beach in spring and fall, Emerald Isle, North Carolina, and do sextant shots standing on the beach, don't have a boat. It's better than Pittsburgh, PA, though the nearness to shore of the Gulf Stream, I've been told, can cause horizon problems, at least one can see the ocean. One does what they can, with what's available.
It remains that Celestial Navigation, to me, is a hobby interest, though certainly an interesting one, beats the hell out of golf.
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