NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Ix Diagram and Pub 208
From: Hanno Ix
Date: 2012 Dec 10, 10:18 -0800
From: Greg Rudzinski <gregrudzinski@yahoo.com>
To: NavList@fer3.com
Sent: Sunday, December 9, 2012 1:51 PM
Subject: [NavList] Ix Diagram and Pub 208
From: Hanno Ix
Date: 2012 Dec 10, 10:18 -0800
Thanks for,the kudos, Greg!
In the meantime, I have developed a version that
transforms the diagram into polar coordinates.
Perhaps that will be still
easier to use?
After Xmas I will send out more about that.
Also, there is a novel sight-reduction-by-hand in the works.
It works with a single 2-page table and covers angles from
0 to 90 degrees without special rules. The calculation
uses only integer numbers of just 4 digits.
The error is +/- 1 sm throughout the full range of angles.
The simple process will be contained on the worksheet.
Sounds too good to be true? You guys will be the judges...
Merry X-mas
H
From: Greg Rudzinski <gregrudzinski@yahoo.com>
To: NavList@fer3.com
Sent: Sunday, December 9, 2012 1:51 PM
Subject: [NavList] Ix Diagram and Pub 208
Hanno Ix's rendition of the azimuth diagram has really delivered. After a plethora of trials it has proven remarkably fast and error free. I highly recommend it's use with Pub 208 or Weem's Line of Position in lieu of the Rust diagram.
http://fer3.com/arc/m2.aspx/Azimuth-Diagram-example-use-HannoIx-oct-2012-g20982
Attached is an example of an octant bubble Sun observation sight reduction using Pub 208 and the Ix Diagram. The NA look-up and sight reduction fit easily on one side of an index card.
Greg Rudzinski
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