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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Re Obtain a fix when you don't have an clear AP.
From: John D. Howard
Date: 2015 Jan 16, 07:22 -0800
From: John D. Howard
Date: 2015 Jan 16, 07:22 -0800
John,
Thank you for the info. I will try your method and atempt to get a copy of the book.
My method was very simple. I used an assumed Lon. as halfway between the GHAs then an assumed Lat. as halfway between the equator and N pole. Then using the law of cosign formulas ( and a computer, no log tables at my age ) I computed a Hc and Zn. Did not plot but estamated a new AP -- third try my AP was 48N & 122W
John H.
