NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Peter Hakel
Date: 2024 Feb 16, 17:36 -0800
Paul Hirose wrote:
“It's not necessary to calculate azimuth and draw a line toward the body.
You can work directly with azimuth angle Z and omit the azimuth line.
Begin by orienting the edge of the protractor east - west. Suppose the
body is west of the meridian and you're in the northern hemisphere. Turn
protractor counterclockwise by the azimuth angle. Move it to the assumed
position, then shift it toward or away according to your calculated
intercept. Now draw the LOP.
This is simple with a square protractor, though it may not be possible
with other drawing instruments.”
Bypassing the drawing of the azimuth line is the main purpose of the T-Plotter. There are articles about it on my blog, and my YouTube channel has demo videos about its various types:
Basic
Blank
Protractor
Peter Hakel