Sextant shot accuracy From: Gary LaPook Date: 2012 Aug 20, 23:56 -0700
I was cleaning out my garage and I found the attached article from a 1981 Cruising World. It states 0.5 NM for the 50% assurance level; 1.4 NM for the 90% level and 2.0 NM for the 95% level for experienced observers.