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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Mileage of rhumb line compared to mileage of great circle
From: Andrés Ruiz
Date: 2011 Jun 4, 09:04 +0200
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Andrés Ruiz
Navigational Algorithms
http://sites.google.com/site/navigationalalgorithms/
From: Andrés Ruiz
Date: 2011 Jun 4, 09:04 +0200
Hello Andrew,
> but the rhumb line formula is more complex
>What do you mean "more complex"? It is dist=60*(lat2-lat1)/cos(true_course)
This is an approximation to RL, is mid-latitude sailing.
Rhumb line or loxodrome in an WGS84, or other Earth model, is based in differential calculus, see the paper at my Web page: http://sites.google.com/site/navigationalalgorithms/papersnavigation/Sailings.pdf
Regards,
Andrés Ruiz
Navigational Algorithms
http://sites.google.com/site/navigationalalgorithms/
