It is now a certainty: the sails need to be furled in order to be able to hoist, lower and stow them by all those owners who do not have a well-trained and above all willing crew at their disposal!
These systems, now tested in the most varied situations, from a relaxing cruise to the most hard-fought regatta, will allow your boat to be able to rig Gennakers and “Code” type sails very easily.
Let’s take a Code for example: the sail will be born with a textile “anti-torsion cable” in the luff and will have two thimbles at the pen and tack points. The first will be fixed to the whisk swivel (which will always remain attached to the sail) and to the halyard.
The tack will be attached to the whisk drum, which will be attached to its default attachment in the bow of the boat. The “loop” of the whisk will come out of the drum, a closed circuit line to be sent back to the cockpit. It is important that the loop is clear.
As soon as this operation is done, the sail can be hoisted, which will already be rolled up and therefore will not catch the wind. Once the halyard is fully stretched, by pulling the sheet and running the loop, the sail will open up to fully inflate.
To lower the sail, check that the halyard is taut, start spinning the sheet and at the same time haul the top of the loop: you will see that the sail will begin to wrap from the luff until it wraps completely. Be careful not to let it unroll leaving the loop! At this point you can spin the halyard and lower the sail wrapped directly in the bag; unhook the halyard and tack, leave the whisk mounted on the sail and put everything away.
Winding the sail easily and quickly
The mission was to bring a mainsail furling system already present in maxi yachts and small and medium tonnage boats with proportional weight, price and installation characteristics.
The challenge was not easy due to the budget of the latter, certainly lower than the luxurious alms of the sea.
All this was possible thanks to the versatility of the composite materials and the design of the mechanical parts that make the system extremely simple and effective.
However, all this would not have been enough, because in addition to needing the best design skills for the realization of what would later be our boom, the true purpose of the system still remains, namely the mainsail!
It is only thanks to the skills and experience of a professional sailmaker that it was possible to create a sail capable of maintaining the same performance as a “classic” mainsail. The merit is that of its fence and its extension.
Moving on to the figures, as mentioned, composite materials can be laminated with different thicknesses and weights, taking as a reference a 40-footer with a boom of 5 meters length. The total weight of the finished structure including mechanics is around 50 kg, just over the old boom, without considering all the manoeuvers that would be supplanted by the new system.
The price, for a 40-footer, is around 4,500 euros and it is also necessary to add the installation and possible modification of the mainsail, which varies depending on where the boat is and its characteristics.
As for the installation, a first visit on board is necessary to check the measurements before the construction of the boom. After this, the installation requires a day of work and can be done easily from your berth without having to dismast the mast or wing the boat.
There is then an outing performed to test the entire system.