NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Sumner lines
From: UNK
Date: 2001 Feb 17, 3:13 PM
From: UNK
Date: 2001 Feb 17, 3:13 PM
Apropos the current discussions of ex-meridian sights and books on the longitude problem... Can anyone recommend any articles, books, or parts thereof that chronicle the gradual change in common practice from separate solutions for latidude and longitude to LOP-based methods, first Sumner's, then altitude-intercept after Saint Hillaire? Neither _From Sails to Satellites_ nor _The Haven-Finding Art_ cover this. All I have been able to gleen is inferences from the way the topics are treated in various editions of Bowditch. It would seem that the US Navy adopted the new methods early in the 20th century, but the merchant marine continued with the old right up to WW-II. -- Peter
