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Reefing or furling systems?
Unlike conventional reefing systems that are fixed to the headstay and have rigid extrusions, a furler is a light cast-off system that allows ease of deploying and striking a sail with the added convenience of lowering and storing the rolled sail, minimizing weight and windage aloft. The rolled sail is easily removed from the sail locker, the drum attached to the deck and a halyard attached to the swivel. Raise the rolled sail, and simply unroll it and set the sheets. In addition, a single furler may be utilized on numerous sails (gennaker, staysail, stormsail, etc.) improving sail handling.
Exclusive Advantages of Karver Furlers
Karver furlers dominate in extreme offshore racing classes like the Open 60, and here are a few reasons why:
Protective Spool Cover: An elastic impact-resistant plastic cover encloses the lower spool.
Simple line replacement: KF Furlers have a notch on the spool allowing fitting or removal of the loop line without removing the line cover or dismounting the system. Continuous line systems allow unlimited furling (ideal for large overlapping sails), and larger diameter drums apply more torque for easier operation.
Increased available luff length through reduced height of the spool and tack fitting, putting the tack of the sail closer to the deck.
High resistance stainless steel ball bearings ensure smooth rotation under the most extreme loads. All KF Furlers are maintenance free and protected by a special anodizing with Teflon impregnation. No pins or small parts to lose. Simple attachment systems allow either a conventional snap shackle or a 2:1 block either on top of the swivel or below the spool.
Drum Diameter 6 17/32", Lower Unit Height 6 3/4", Swivel/Shackle Dia. 2 1/8",Pin Diameter 15/32", Wt. (Oz.) 53.9, MWL (lb.) 11,023, Breaking Strength (lb.) 22,046