Re: leg56. Chart vs formulas
Subject: Re: leg56. Chart vs formulas
From: Andres Ruiz (aruiz@XXX.XXX)
Date: Fri Jul 16 1999 - 09:56:06 EDT
Yes, this´s true, but I think that Rhumb Line is only the line on the surface of the earth, ( spherical or oblate), of a Mercator Sailing, also called loxodrome
>Mercator Sailing:
> Provides a solution to the plot as made on a mercator chart. Uses
>meridonial differences and difference of longitude in place of
>difference of latitude and departure, respectively.
>
>Rhumb Lines:
> Maintains a true direction. Makes the same angle with all meridians
>it crosses. Maintains a straight line on a mercator chart. The
>difference between the Rhumb line and the Great Circle connecting two
>points increases as (1) as the latitude increases, as the difference in
>latitude between two places decreases, and (3) as the difference of
>longitude increases.
>
Andrés Ruiz
e-mail: aruiz@XXX.XXX
http://www.geocities.com/CapeCanaveral/Runway/3568/index.html
