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STRUCTURED LUFF TECHNOLOGY

The next generation of Cableless sails is here - Structured luff sails redefine, yet again, the boundaries of high performance sails. Significantly less luff sag and reduced loads. creating more driving force from greater projection.

Winning races all over the world.

In the Grand Prix and Superyacht market, Doyle Sails’ has triggered a key change in design, delivering breakthrough technology. Doyle Sails innovative approach has not only provided a new generation of high performance sails, but started a revolution that looks set to have a far greater knock on effect. So significant are the developments, that there are many reasons that the Structured Luff technology could transform how yachts are designed and built.

At the heart of this development is changing the manner in which load in the luff of a sail is distributed and by reducing luff sag it allows the sail to achieve more driving force.

So, what are Structured Luff sails?

‘This technology came out of the free flying Code sails we were building a few years ago where we took the cable away and put a band of carbon up the front of the sail instead,’ says Doyle’s Superyacht sail co-ordinator Matt Bridge. ‘As part of that and to distribute some of the straight-line load, we put a lens structure in behind and into the sail. These are continuous fibers that run from the head to the tack in the front of the sail that give us the possibility to shape the front of the sail and distribute what used to be a straight-line load back into the sail. Now we've taken that thinking from the Cableless Code sails and applied it to our upwind designs.

In some instances, we are reducing loads by up to 50 per cent,’ explains Doyle Sails International’s COO Emma Hendy. ‘Reducing luff sag is one of the biggest factors in allowing our sails to achieve more driving force. On some of the bigger boats we’re seeing a reduction in sag at the middle of the forestay of up to a metre, which in turn means that the sail can be projecting a metre further to windward. So there are some serious benefits for racing superyachts. But from a cruising standpoint there are massive advantages too, where the reliability of the furl, the reduction in weight and the fact that these new sails are easier to store are all important factors in this area.’

Comanche, 100ft Supermaxi; Line Honours Winner, 2019 Rolex Sydney to Hobart.

STRUCTURED LUFF SAILS OFFER UNPARALLELED PERFORMANCE, EXCLUSIVE TO DOYLE SAILS.

  • LESS OVERALL SAIL WEIGHT WITH THE REMOVAL OF A CONVENTIONAL CABLE.
  • LESS LOAD ON ATTACHMENTS, LOADS CAN BE REDUCED BY UP TO 50%.
  • EASIER TO HANDLE & STORE, WITH LESS CREW REQUIRED.
  • HIGHER PERFORMANCE - MORE LUFF PROJECTION (LESS LUFF SAG) AND DRIVING FORCE.
  • WIDER SAILING ANGLES CAN BE ACHIEVED.
  • FURLING RELIABILITY - EITHER TOP DOWN OR BOTTOM UP.

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