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Re: Traditional navigation by slide rule
From: Gary LaPook
Date: 2016 Nov 14, 05:29 +0000

Sure. If your destination is generally northeast of you then Zn = Az;
If your destination is generally southeast of you then Zn = 180 - Az;
If your destination is generally southwest of you then Zn = 180 + Az;
If your destination is generally northwest of you then  Zn = 360 - Az.

gl

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On Sun, 11/13/16, Bob Goethe  wrote:

 Subject: [NavList] Re: Traditional navigation by slide rule
 To: garylapook@pacbell.net
 Date: Sunday, November 13, 2016, 1:28 PM
 
 Gary, do you have azimuth-rule suggestions for
 rhumb line calculations?  It seems likely that if I got
 azimuth wrong for great circle routes, I may well have
 gotten my rhumb line calculations wrong as well.Bob
 
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