November 10, 2009 18:01
It might be useful if the generic polars used are published here as a response post.
One thing to keep in mind is if one were to sail the recommended course by Sailtimer they would be "banging the corners". That is the corners of the layline. The risk with this is if a wind shift (even subtle) occurs one could find themselves over standing the destination (i.e. sailed further then needed). So a standard approach is to sail up or down the middle of a course so one can take advantages of wind shifts.
MacENC will use the instruments wind angle and speed and constantly refresh the layline plot (SailTimer route).
http://www.gpsnavx.com/images/windshifts.jpg
One thing to keep in mind is if one were to sail the recommended course by Sailtimer they would be "banging the corners". That is the corners of the layline. The risk with this is if a wind shift (even subtle) occurs one could find themselves over standing the destination (i.e. sailed further then needed). So a standard approach is to sail up or down the middle of a course so one can take advantages of wind shifts.
MacENC will use the instruments wind angle and speed and constantly refresh the layline plot (SailTimer route).
http://www.gpsnavx.com/images/windshifts.jpg
Scott Dillon
Sydney Australia
North Shore 38
CYCA
Sydney Australia
North Shore 38
CYCA