Nacra F20 Carbon Assembly & Rigging Manual page 33

Step 7
Measure the distance between the port and starboard leading and trailing
edges of the rudder blades. The trailing edge should be 2 mm more out than
the leading edge. Move the rudders in or out to attain the right measure-
ment.
Step 7
Measuring the leading edge
Step 6
Locking the rudders part 2
The rudder is now locked.
Step 7
Measuring the trailing edge
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