NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Antoine Couëtte
Date: 2013 Jun 26, 03:07 -0700
RE : http://fer3.com/arc/m2.aspx/Longitude-Willis-jun-2013-g24493
Good day to you Sam,
Quick and nonetheless comprehensive reply to your query: it all boils down to having at hand a good time keeping device, or better: a good Chronometer. If you have a good Chronometer and accurately shoot LOP’s at azimuths 90° and/or 270°, and if you do the math correctly, yes! you will derive get a quite reliable Longitude figure. Otherwise, forget it...
I know it is a bit condensed, and others - and in particular Frank E. Reed - are excellent at teaching this, but exactly as "no foot, no horse" ... "no time keeping device, no Longitude", or in an easier way "no Chronometer, no Longitude".
Food for thought, no???
Best Regards
Kermit
Antoine M. "Kermit" Couëtte
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