NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Another "emergency navigation" sight reduction method
From: Greg Rudzinski
Date: 2015 Jul 11, 16:16 -0700
From: Greg Rudzinski
Date: 2015 Jul 11, 16:16 -0700
Brad,
5 minutes is the at sea reduction time for hav Doniol not at the desk time. At the desk the hav Doniol can be done in 2.5 minutes longhand without rushing but a few minutes one way or the other is not important unless your going 500 kts. Aviators need the speed so this is the place where a MHR-1 shines. Sailors are better off with tables which are much harder to break ;-)
Greg Rudzinski
From: Brad Morris
Date: 2015 Jul 11, 18:20 -0400Greg
Upon rereading your message, I see that you asset 5 minute solution times. Didn't pick that up the first time thru.
5 minutes for Hav-Doniol is greater than 2 minutes for the Bygrave
Brad