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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Metric Bookmark Kamal
From: Francis Upchurch
Date: 2016 Mar 17, 07:46 -0700
From: Francis Upchurch
Date: 2016 Mar 17, 07:46 -0700
Great Kamal and results Greg,
I made a simple Kamal a la Burch a few years ago using a small plastic ruler marked in cms. With a string 57cm long, 1 cm =1°.
I only did a few latitudes with it, sun or polaris (when on holiday in the Canaries.Polaris. Hs too big in N Europe for a Kamal) and only got to within about 10' of correct Lat.
Does anyone know whether the Arab, Indian and Chinese sailors knew about Polaris correction and declination of the sun in order to work out latitude? I read somewhere that the Arabs, crossing the Indian ocean used different size strings for different ports of call.
Best wishes
Francis
