NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Position lines, crossing.
From: Peter Fogg
Date: 2006 Dec 11, 13:30 +1100
From: Peter Fogg
Date: 2006 Dec 11, 13:30 +1100
Robert Eno wrote: > I am not attempting to dismiss what George stated about errors in fix -- in > fact I agree with him. I am only questioning the practical need to consider > these errors for everyday navigation at sea. One practical way to take 'these errors' into account has brought up by George only to be dismissed. When a known risk exists in the vicinity, then assume the position (fix if you prefer, or 'probable position' or any other nomenclature of choice) lies along the LOP at the closest point to the danger, rather than the centre of the enclosing LOPs. I would contend that this is simple common sense. Nobody has ever suggested that this constitutes any guarantee that the actual position is located at the same point. Rather, since a position has to be derived from some data, this position is consistent with the data available and sensible risk management. --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to NavList@fer3.com To , send email to NavList-@fer3.com -~----------~----~----~----~------~----~------~--~---
