The Capri 25 rig for our sails should be set up with 10” to 12” of mast rake. This is measured by hanging a weight on the end of the main halyard and measuring how far aft of the mast it hangs at the deck level.

 

Upper shroud tension will vary slightly with crew weight, but the goal is to have the mast stay straight side to side up to the point where you start to get overpowered, about 10 knots of true wind. The aft lowers will control the amount of pre-bend in your mast. For one of our mainsails we recommend no pre-bend unless you are sailing with a very light crew and need a little flatter mainsail. Maximum pre-bend should be no more than ¾”. The forward lowers are set with just enough tension to balance against the aft lowers so that the middle of the mast stays centered. It should not fall off to leeward, or bow out to weather.

 

UPWIND:     to 6 knots    7 to 10 knots   11 to 14 knots    14 to 19 knots    20 and Up

 

Headsail           155%               155%               155%               140%               90%                

 

Chainplate        6”-4”                3”-2”                touching            touching            -          

 

Spreaders         6”-4”                3”-2”                2”-1”                1’-0”                inside 4”

           

Backstay         loose                 light                  medium            max                  max

 

Boom               down 2”           0                      0/down2           down 2”-8”      down 4”-12”

From centerline

 

Traveller           up 12”              up 8”-12”         up 4”-8”           up 4”- down 4”  down 2”-10” 

From centerline

 

Top Batten       slight open        parallel             parallel         slight open     Twist to keep flat

 

The Chainplate measurement is the distance the foot of the genoa is sheeted out from the chainplate. The Spreader measurement is the distance the leech of the genoa is sheeted from the end of the spreader.