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» Online Classroom   » Inland and Coastal Navigation   » Public Discussion of Inland and Coastal Navigation   » Nav Workbook 1210tr ex 6-12

   
Author Topic: Nav Workbook 1210tr ex 6-12
Lance


 - posted April 25, 2020 02:59 AM      Profile for Lance           Edit/Delete Post 
Interesting. If I use a bearing of 330°M from Chilmark Spire at 1745 (orange) and 018°T at 1845 (green), I get the answer in the back of the book. But was this mix of true and magnetic bearings intended?

Or did I just get it wrong?


From: Hobart, Australia
David Burch


 - posted April 25, 2020 08:22 AM      Profile for David Burch           Edit/Delete Post 
No, we never try to intentionally mix up anything.
From: Starpath, Seattle, WA
David Burch


 - posted April 25, 2020 02:00 PM      Profile for David Burch           Edit/Delete Post 
I believe we have notes elsewhere (maybe the textbook or workbook introduction) specifying that any bearing, direction, or course not otherwise specified is true, but it seems this can still be confusing, so we have changed this exercise for next printings to magnetic bearings and provided new answer, and this is now in the errata as such. That will be simpler and clearer specification of the exercise. We may have others to fix this way as well in both workbooks.
From: Starpath, Seattle, WA


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