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Navigation; Boat Velocity Module

Forum - Electronic Navigation and Communications - Navigation; Boat Velocity Module
Module Content - Sea Talks4
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Student
James McSwain
Scottsdale, AZ, USA
Skipper Level I
Status: Sailor
Qualified days: 23
Navigation; Boat Velocity Module
Posted 2015, Sep 29 03:00
What horizontal line is the text referring to? I only see a dotted radial line. Navigation; Boat Velocity; Polar chart
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Grant Headifen
Reply 2015, Sep 29 15:12
It says to draw a horizontal line. Draw it from the point of interest on the boat curve horizontal to the vertical axis then measure that speed.
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