NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: from a watcher
From: Dan Allen
Date: 2002 Oct 17, 18:52 -0700
From: Dan Allen
Date: 2002 Oct 17, 18:52 -0700
On Thursday, October 17, 2002, at 06:10 PM, David Weilacher wrote: > Take lined tablet paper. Throw out the proformas. > Stick with just the sun for awhile. I agree with these two observations. BTW, I do not frown on using a universal plotting sheet, nor do I consider myself learned. Other than one Coast Guard costal navigation class I took years ago, I am self taught with regard to navigation. Of course I was a math & physics major in college, so I tend to enjoy the math & physics of it all. Using a calculator helps me concentrate on the actual physics and formulas behind navigation, but if you take joy in using tables, by all means do it. > Only take two books with you, The nautical almanac and the one volume > of the > sight reduction tables you require. Note that the US nautical almanacs have a set of sight reduction tables in them already so you actually only need one the volume if you do not have a strong preference for a different set of tables. Here again the whole point of sight reduction is solving one formula: cos(c) = cos(a)*cos(b) + sin(a)*cos(b)cos(ab) I did it by memory! ;-) Dan