NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: John Karl
Date: 2015 Jan 19, 08:57 -0800
John B,
Sorry, but I didn't understand your calculations. Calling the whole of the United States a "point" confused me. And yes two LOPs do create a fix. But no iteration, and no AP, is required to compute the Lat & Lon of that fix (actually there are two fixes) as dicussed in an earler postings.
Henry H,
The phrase "computed point" is one I've never seen before. But it's quite an appropiate term for a point computed on the LOP. In the expanded version of my book I call that point the "PLOP." (This term is sometimes used for something else in navigation.) In St. Hilaire that's the point arrived at after the intercept distance is stepped off. No matter where the AP is for that calculation, the PLOP is a Point on the Line Of Position. And of course as pointed out earlier, we can compute a PLOP by specifing a latitude or longitude on the LOP, and then calculating its longitude or latitude of the PLOP (all with no AP or interations).
By the way, what book (name & date) is that page from??
John K.
