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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Sextant averager
From: Gary LaPook
Date: 2010 Oct 10, 17:43 -0700
From: Gary LaPook
Date: 2010 Oct 10, 17:43 -0700
Here is the patent on the Dreimel-Black averager used in the Kollsman sextant. The patent used an A-10 sextant to illustrate the invention. Also see: http://www.fer3.com/arc/imgx/MA-2-Manual.pdf The following post describes the operation of the averager but has it wrong since the ball moves from the center to the edge of the rotating disk at a constant rate driven by clockwork and the rotating disk is turned by the altitude knob which is exactly the opposite of this description. http://fer3.com/arc/m2.aspx?i=018062&y=200410 gl