NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Cannot dispense with the assumed position at sea
From: Doug Royer
Date: 2004 Feb 19, 14:54 -0800
From: Doug Royer
Date: 2004 Feb 19, 14:54 -0800
Joel and David,I can see both your points of view on the running fix. However,Jim Thompson wrote the original post and used the term "assumed position" in the context of the dr pos.That is how I interpreted his post.An AP is NOT the same as the dr or ep pos and that is what I want him to understand or at least explain to him. As Joel stated if he isn't useing reduction tables he doesn't need an "AP". I can understand wanting to use an AP to reduce a sight instead of a dr or ep if one has no confidence in the said dr or ep.Or if one uses reduction tables exclusively to find the needed data to obtain the intercept and Az. I had just interpreted his original proposition to mean DR. It seemed to be the context he was using it in.