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Re: Bygrave revised rules for converting azimuth angle to Zn
From: Gary LaPook
Date: 2010 Jul 12, 03:49 -0700
From: Gary LaPook
Date: 2010 Jul 12, 03:49 -0700
Here is link to my website where you download the PDF files for the scales so you can make you own copy. https://sites.google.com/site/fredienoonan/other-flight-navigation-information/modern-bygrave-slide-rule gl Gary LaPook wrote: > Gary LaPook wrote: > > This is how the new rules should look. >> >> The new rules look like this: >> >> >> Azimuth Rules >> North >> Latitude >> 0 < LHA < 180 >> < LHA < 360 >> If DEC or W > LAT Zn = 360 - Az Zn = Az >> If DEC contrary or W < LAT Zn = 180 + Az Zn = 180 - Az >> >> South >> Latitude >> If DEC or W > LAT Zn = 180 + Az Zn = 180 - Az >> If DEC contrary or W < LAT Zn = 360 - Az Zn = Az >> >> >> I have attached a better copy of the revised form. >> >> >> >> gl >
