NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Azimith forumula for Great Circle sailings- having problems
From: Samuel L
Date: 2014 Dec 25, 03:56 -0800
From: Samuel L
Date: 2014 Dec 25, 03:56 -0800
Dave,
Bowditch can be found here;
http://msi.nga.mil/NGAPortal/MSI.portal?_nfpb=true&_pageLabel=msi_portal_page_62&pubCode=0002
Here's the information you're looking for;
Bowditch Chapter 24, The Sailings, page 347 shows the procedure to obtain distance and initial bearing between 2 locations using HO 229.
Bowditch Chapter 22, Calculations and Conversions, page 332 gives the distance and initial bearing formula.
The man at the link below mentions a formula for calculating distances and bearings between 2 places on earth.
http://www.madinstro.net/sundry/navcel.html
Sam L.
