NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Manual calculation of compass variation
From: Lisa Fiene
Date: 2004 Oct 17, 13:27 +1000
From: Lisa Fiene
Date: 2004 Oct 17, 13:27 +1000
What George has written below is incredibly true. Our steering compass has been adjusted, so it is accurate, however when I use our hand bearing compass for fixes, I have to climb as high above the transom that I can, so that an accurate reading can be obtained. Otherwise, it's anything up to 20 degrees out! Lisa George Huxtable wrote: Of course, on Lisa's steel vessel, compass deviation and its correction is a serious matter, and in her case it's likely that compass bearings of low celestial bodies would be useful, not for checking variation, but instead, taking compass variation from the chart, for checking deviation, and how well the compass has been corrected..
