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3:1 Purchase

A 3:1 low friction sheave is used below the furling drum to adjust luff tension in the sail. 3:1 Friction sheaves are designed to be used under a code zero or asymmetric furling drum. This is used to apply tension to the luff of the flying sail. A 3:1 can be used to apply more load to the sail luff / torsional cable than a 2:1 Purchase, for the same winch load. The tackline is attached (spliced) first to the becket on the bottom of the 3:1 Friction sheave it then goes round x1 sheave at deck level (normally at the end of a bowsprit) back up around the friction bearing surface of the sheave and back down to a second block and then led back to the cockpit. A double block can be used at deck level or x2 single blocks can also be used.


Double fairleads  Furling lines  Bowsprits  Torsional cables 

  • 2:1 Purchase
  • 3:1 Purchase
286.08 € 357.60 € 286.08 EUR
20% Off
72.21 € 76.01 € 72.21000000000001 EUR
5% Off
470.86 € 495.65 € 470.86 EUR
5% Off
1,305.67 € 1,632.09 € 1305.67 EUR
20% Off
367.95 € 459.94 € 367.95 EUR
20% Off
107.73 € 113.40 € 107.73 EUR
5% Off
515.03 € 643.79 € 515.03 EUR
20% Off
927.72 € 1,159.66 € 927.72 EUR
20% Off
489.24 € 543.60 € 489.24 EUR
10% Off
157.10 € 165.37 € 157.1 EUR
5% Off
203.97 € 214.70 € 203.97 EUR
5% Off
86.69 € 91.25 € 86.69 EUR
5% Off

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