NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Calculate new coordinates given bearing and distance?
From: Samuel L
Date: 2015 Nov 24, 17:09 -0800
From: Samuel L
Date: 2015 Nov 24, 17:09 -0800
Sean,
Thank you for the effort which looks considerable. I noticed in Bowditch Chapter 24, "The Sailings" mention of the Traverse tables.
Also, I gave these a try and they work-
DR Longitude = Lf+t(V/60)sinT/cosBf
DR Latitude = Bf+t(V/60)cosT
...where
- Lf = Longitude of the last fix
- Bf = Latitude of the last fix
- t = Time elapsed
- V = Speed
- T = Course
Very nice.
Thanks,
Sam L.