NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: AN5954 bubble octant by Bausch and Lomb
From: Gary LaPook
Date: 2012 May 9, 01:10 -0700
From: Gary LaPook
Date: 2012 May 9, 01:10 -0700
Well that is the entire point. Bubble sextants were developed for use in flight and the accelerations in the plane cause large excursions in the instantaneous measured altitudes, it can vary more than a degree! Since these are random variations, taking the average or the median improves the final result. There is a reason that all the octants developed in the 1930s and used by airlines for primary oceanic navigation through the late 1960's and by the U.S. Air Force though the early years of this century all incorporated an averager. gl gl --- On Tue, 5/8/12, Alexandre E Eremenko <eremenko@math.purdue.edu> wrote:
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