NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: John Brown
Date: 2015 Jul 23, 00:30 -0700
Greg
Very ingenious, thanks.
I like your index card SR calculations and have been inspired to clean up an earlier, standard cos-vers version of mine as a kind of pro forma, copy attached.
I assume that the reverse of your index cards contains the date, time, DR position, almanac data, sextant altitude corrections etc and that these are NOT on a scrap of paper somewhere. ;-)
I do not have a bound copy of Ageton but possibly this would be about the same size as Myserscough and Hamiltons' Rapid Navigation Tables (10.75 x 6.5 x 0.5 inches) - exactly the same physical size as Burton's 4-figure tables. Either one will comfortably fit into my C.Plath sextant box together with Geoffrey Kolbe's excellent LTA (should I ever wish to do such a thing).
Burton is not a one trick pony, however, and a copy of the contents page is attached. There is even a half convergency table for the emerging Navlist interest in Ro DF bearings!
The bad news is that Burton is no longer in print. Grab your copies while you can.
Best regards
John
