Goodall Viper - Spreader Rake

Viper Owner's Manual 43
The standard setting, for 125 - 140kg crew
weights is the top screw on the plastic rudder
clip.
The total range is between the top of the lower
pintle and halfway between the two pintles. With
lighter crews carrying more and heavier crews
carrying less mast rake.
4.4.6 SPREADER RAKE
Spreader rake is a method of tuning the fore-aft stiffness of a mast below the hound fitting. Crew
weight affects the required amount of spreader rake as it has a significant effect on the amount
power developed by the rig.
To answer how much is sufficient rake can only be determined by sailing the boat and knowing what
to look for.