NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Greg Rudzinski
Date: 2010 Dec 4, 13:01 -0800
Paul,
Plotting a horizontal sextant angle while in a small craft cockpit only requires a divider compass, folded chart, and slide rule (pocket calculator). The divider compass is used to half the distance between the nav marks. The halved distance is then divided by the sin of the sextant angle using the slide rule. The result is the radius which is arced off each nav mark to get the radius center. From the radius center is plotted the arc of position. Quick and clean.
Greg Rudzinski
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