NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: AP terminology, WAS: 2-Body Fix -- take three
From: Geoffrey Kolbe
Date: 2009 Nov 13, 22:10 +0000
From: Geoffrey Kolbe
Date: 2009 Nov 13, 22:10 +0000
Karl wrote [Navlist 10635] >So I'll put my question yet another way: Why is the St Hilaire method >superior to Sumner's and consequently the only one used today?? Karl, you answer this very succinctly on page 30 of your book (1st edition). You said that the St Hilaire method is the most efficient and robust method for two (or more) body fixes. I agree. Back in your posting [NavList 10593] you said that there is no generic word for the apex of the St. Hilaire navigation triangle between the coH side and the coLat side. Well, St. Hilaire himself in his "Note on the determination of position" generally called it the estimated position. You asked [NavList 10593] "Why does the St. Hilaire method use a CP instead of just calculating the LOP directly?" I am puzzled. How would you calculate the LOP "directly"? Geoffrey Kolbe --~--~---------~--~----~------------~-------~--~----~ NavList message boards: www.fer3.com/arc Or post by email to: NavList@fer3.com To , email NavList+@fer3.com -~----------~----~----~----~------~----~------~--~---