NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Poor St. Hilaire
From: Geoffrey Butt
Date: 2007 Oct 30, 12:03 -0000
From: Geoffrey Butt
Date: 2007 Oct 30, 12:03 -0000
John, you wrote: "... many students ask: If we know everything necessary to plot the LOP, why do we need assume anything??" Because they want to use Sight Reduction Tabels as a quick, mentally undemanding method to plot LOPs. I teach a lot of commercial sailors who require AN for Deck Officer tickets. They want a method which works, and which requires a minimum of sophistication. Similarly, when I am cruising, I carry a selected few sheets from SR Tables to cover the latitudes I need and a few pages of Almanac data. That's all. When at home with computer and library resources I agree with you: there is no need to assume anything to plot an LOP. But that's not real life on a small boat or a minimally manned commercial vessel. Geoff --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to NavList@fer3.com To , send email to NavList-@fer3.com -~----------~----~----~----~------~----~------~--~---
