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» Online Classroom   »   » Public Discussion of Inland and Coastal Navigation   » IN05 0007

   
Author Topic: IN05 0007
Stephen123


 - posted May 31, 2017 02:23 AM      Profile for Stephen123           Edit/Delete Post 
Hi
just wondering if you can give me some feedback on my DR position for the above question.

Lat & Long 0337 DR estimated position 48 21.5 123 21.5
Hopefully I'm not too far off the mark!

Can you advise about calculating 7 leeway

many thanks
Steve

Capt Steve Miller


 - posted May 31, 2017 07:09 AM      Profile for Capt Steve Miller           Edit/Delete Post 
Your DR position is correct.
7deg leeway simply means that the wind is pushing your vessel 7 deg off your intended course in the direction that the wind is blowing.

For example on the first leg your intended course is 305 M or (for plotting) 325 T. With the wind blowing over your port side it is pushing your vessel to starboard thus your course would be 325 T plus 7 deg = 332 T. Apply the same logic to the other legs. Remember when you tack the wind will be over your starboard side thus you subtract the 7 deg leeway.

From: Starpath
David Burch


 - posted May 31, 2017 08:10 AM      Profile for David Burch           Edit/Delete Post 
This discussion has been moved to the Student Discussion Forum as it pertains to online course materials. Please carry on there. Thanks.
From: Starpath, Seattle, WA


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