SailNet Community - View Single Post - Correction for Leeway - Coastal Navigation Question
View Single Post
post #2 of Old 07-30-2011
Senior Member
CaptainForce's Avatar
Join Date: Jan 2006
Location: living aboard since 1972
Posts: 1,718
Thanks: 0
Thanked 12 Times in 12 Posts
Rep Power: 12
Though you say the leeway is 4 degrees, it is much easier to identify the leeway as a vector (direction and speed). This vector can be expressed on the chart as a line showing how far the leeway would take you over an arbitrary lenth of time (say two hours); therefore, if the 22 knot wind and what ever associated current were to cause your vessel to move in a direction of 90 degrees at 1 knot, then you can plot a 2 nautical mile line from point A at 90 degrees to represent where you would end up by the "leeway". You can also plot a line for twelve nautical miles from A to B at 145 degrees to represent your intended path for the arbitrary 2 hours. If you were to determine the course direction from the end of the 2 mile line to the end of the 12 mile line; then, this would be the course to use that would correct for the leeway. I'm sure someone could explain this more clearly,- Take care and joy, Aythya crew
CaptainForce is offline  
Quote Share with Facebook
For the best viewing experience please update your browser to Google Chrome