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The tension in the luff of the sail is adjusted using a combination of the halyard and the Cunningham (where fitted). The primary advantage of adjusting the Cunningham is the speed and ease with which the luff tension can be changed while sailing or racing. By either hauling or easing the line, the tension in the luff can be changed, thereby shifting the point of maximum draft of the sail forward or aft respectively, optimizing sail shape and thus performance. It is a fine control .
Package contain:1 x HT 2030 Single fixed Head Block1 x HT 2030 LZ Single Stand Up Block1 x HT 2036 Cheek Block1 x 103-1 Captive pin Block1 x 91021 Stainless Steel Eye StrapDynemma LineControl Line