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  World Class Level Racing
 An ISAF Class Association "Classic Yacht Class"

One Design!

 

Note that while these diagrams are of masthead rig, the roller furling is easily adapted for Shark fractional rigs.

Headsail furling Gear with Halyard Swivel for Wire Forestay

For Sails with Jib Hanks and Forestay length under 10m.

Simple sail change with the existing Halyard.

  1. Halyard swivel (without sheave) (p.14)
  2. Eye terminal
  3. Halyard swivel (p. 15)
  4. Halyard
  5. Halyard lead block/halyard lead eye (p. 19)
  6. Wire forestay
  7. Stopper bullet
  8. Turnbuckle
  9. Three hole plate
  10. Jib furler Endless (p. 8)
    Jib furler Standard (p. 4)
  11. Snap Shackle

Advantages
bulletSails with jib hanks can be further used - sail changing as usual
bulletThe halyard can be released when changing the sails, because the halyard is fixed over the halyard swivel on the forestay
bulletOuter halyards or within the mast running halyards can be used
bulletThe stopper bullet prevents the dogging of the jib hank on the terminal shank

Extension possibilities
bulletTo the jib furler with profiled luff stay

Simple sail change - the bending an unbending of the jib hanks is not needed.

Improved flow of the sail through the profiled luff stay - the fore leech will be stabilized and will not hang between the jib hanks.

Tension on the jib halyard will be reduced.

The rig, the halyard and the fittings will be relieved.

In case of increasing wind hauling tight of the jib halyard will be spared and so also the loosening and tightening of the standard backstay.

bulletTo the headsail furling gear with profiled luff stay and reefable sails.

Safe and quick reefing of the sail from the cockpit.
bulletWith deck passage as below deck gear (p. 31-33)
bulletHints

For fore leech length over 10 m we recommend in general a profiled luff stay, otherwise the fore leech will be too strongly twisted when furled.

The halyard swivel has to be constantly located close to the headstay swivel when sails are set otherwise the halyard can twist around the stay. Extend short headsails (e.g. storm jib) with a wire sling.

12 Wire sling extension for short headsails

The fore leech length of the sails and respectively the wire sling are to be dimensioned in such a way that the halyard swivel doesn't touch the top eye terminal, even when the jib halyard is strained.

Between stay and halyard an angle of at least 15° degrees has to be observed, otherwise the halyard can twist itself around the stay.

Corrective measures:
(Take note of the class regulations)

bulletMount halyard lead block on mast
bulletSet halyard outlet low (sheave box circa 200 mm under the stay)
bulletAlternatively the halyard can lead out of the mast circa 0,5 m over the stay.

 

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