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» Online Classroom   » Inland and Coastal Navigation   » Public Discussion of Inland and Coastal Navigation   » Chart Problems

Author Topic: Chart Problems

 - posted September 07, 2008 02:50 PM      Profile for frank           Edit/Delete Post 
Many of my chart problem "solutions" differ from the text official answers by perhaps a minute or two of Lat/Lon and perhaps the same for scaled distances. Am I in the ball park with my answers? If I redo the problem with greater care (plus knowing the answer) I can get closer. But as a matter of routine, the first attempt sometimes falls short. It all depends on how I transfer the angle from the "rose" and how I draw the rhumb line etc. For the Certification Test, to what tolerances should our answers by to be considered correct.
From: MS
David Burch

 - posted October 10, 2008 02:04 PM      Profile for David Burch           Edit/Delete Post 
Please do a search on "accuracy" and you should find several discussions of this plus a link to a short article on the subject.

If troubles finding it, pls post and we will track it down. thanks

here is one to start with:

From: Starpath, Seattle, WA

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