A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Gary LaPook
Date: 2021 Mar 24, 11:49 -0700
Drawing a line at the angle of the latitude is a standard method for drawing a longitude scale on a plotting sheet as it converts "departure" into difference in longitude. It was stndard on Navy Plotting boards, see attached instructions. It is also a standard mthod for plotting a fix on the E-6B flight computer.