NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: That darned old cocked hat
From: Peter Fogg
Date: 2010 Dec 10, 07:13 +1100
From: Peter Fogg
Date: 2010 Dec 10, 07:13 +1100
1. Error leads to the fix position not being found within the shape formed by intersecting lines of position.
2. There are two kinds of error, random and systemic.
3. Use of the slope technique, using the calculated slope, is the best method presently known to reduce random observational error.
4. Systemic error can be dealt with by bisecting each angle formed by intersecting position lines.
5. Use of these techniques, it seems to me, is much more helpful than agonising over the percentage of times the fix will be outside the shape if these simple and effective methods are not used.
2. There are two kinds of error, random and systemic.
3. Use of the slope technique, using the calculated slope, is the best method presently known to reduce random observational error.
4. Systemic error can be dealt with by bisecting each angle formed by intersecting position lines.
5. Use of these techniques, it seems to me, is much more helpful than agonising over the percentage of times the fix will be outside the shape if these simple and effective methods are not used.
