NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Log keeping
From: Jeremy C
Date: 2009 Jul 29, 02:39 EDT
--~--~---------~--~----~------------~-------~--~----~
NavList message boards: www.fer3.com/arc
Or post by email to: NavList@fer3.com
To , email NavList-@fer3.com
-~----------~----~----~----~------~----~------~--~---
From: Jeremy C
Date: 2009 Jul 29, 02:39 EDT
As an aside to this, "Taking departure" is still done this way on the
merchant ships I've sailed on. Departure is useful to begin the "passage"
from which consumption and distances are computed and it is still relatively
arbitrary. They are still marked in both the log book and bell book as a
distance (usually obtained by radar) and bearing (ditto) as well as a GPS Lat
and Long.
Passage planning as a whole is very detailed these days. Generally a
waypoint is marked as a departure point, but traffic and other considerations
may make the actual point of departure quite different than the planned
waypoint.
Voyage planning, chart and pub corrections, and execution of the
voyage plan are the primary jobs of the navigator these days.
As far as plotting sheets are concerned, this has nothing to do with taking
departure (or conversely arrival) in modern voyages. We are usually well
onto charts before arrival is actually taken, even from ocean passages.
Recently, on this ship, we take arrival just shy of the pilot station, so we
have been off of the plotting sheets for some hours. A good example of
this is my last arrival into Diego Garcia, which is an island in the middle of
nowhere. We hit the chart at 0420 and took arrival at about 0900. I
had first radar and then visual landfall by 0500.
Jeremy
--~--~---------~--~----~------------~-------~--~----~
NavList message boards: www.fer3.com/arc
Or post by email to: NavList@fer3.com
To , email NavList-@fer3.com
-~----------~----~----~----~------~----~------~--~---