Harken: Mainsheet System Loading

Mainsheet System Loading

The formula for mainsheet loading is not as widely accepted as that for genoa sheet loads and should only be used as a rough guide for offshore boats from 30 ft to 60 ft (9 m to 18 m).

Traveler car adjuster load is generally considered to be .2 times car load.


English

ML	Mainsheet load in pounds

E	Foot length of main in feet

P	Luff Length of main in feet

V	Wind speed in knots

X	Distance from aft end of boom to mainsheet attachment point in feet.


Metric

ML	Mainsheet load in kilograms

E	Foot length of main in meters

P	Luff Length of main in meters

V	Wind speed in knots

X	Distance from aft end of boom to mainsheet attachment point in meters.