NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Angles without a protractor
From: Lu Abel
Date: 2012 Oct 12, 14:39 -0700
From: Lu Abel
Date: 2012 Oct 12, 14:39 -0700
Question: Why use 3" and then multiply by 20? Why not 6" (or cm or whatever). Then you'd only have to multiply by 10, also known as a simple decimal point shift.
From: Robert Bernecky <bernecky@sbcglobal.net>
To: NavList@fer3.com
Sent: Friday, October 12, 2012 12:23 PM
Subject: [NavList] Re: Angles without a protractor
You said …drew an angle of 35°… I found it to be 34°…Out of curiosity, I was interested in the error in this simple approach. As you can see from the curve given in the attachment, you found exactly what you should have.Attached is a curve giving the correction to be applied to your calculated angle.
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