Without battens the sail has a concave leech, which makes the sail smaller, less powerful and less efficient. Most modern reefing/furling units use a continuous support tape along the leading edge of the sail that slides into a groove in the furler. Custom made for all sizes and types of sailboats and catamarans. The reason for this is that it has always presented some negatives that leave many people unsure about whether or not to take the big plunge. Many production cruising boats come standard this way. The advantage of mainsail roller furling in the boom is that you can still have battens in the sail, thus allowing a more efficient sailplan with roach (extra sail area outside what would be the straight line drawn from the head of the mast to the end of boom, pardon me if you already know that). The most common furling main is the in-mast main with no battens. Although more popular than ever, a furling mainsail is still not 100% standard equipment on today’s boats. Schaefer Marine's Boom Furling system is the result of years of research, design and sailing. Furling for flying sails does not mean a loss of performance, rather a sail that can be modified to point, reach and perform downwind as well. Think of the rigid vang, the ratchet block, and even some roller-furling units. There's no need to flake and cover the mainsail when done sailing. If the tension is too high, it will damage the bearings. The most common furling main is the in-mast main with no battens. Old Sail – when the sail get tired the draft moves aft resulting in extra material in the middle of the … Since the battens are parallel to the mast, they can be rolled into the mast during the furling process. An in-boom furling system will literally change the way you sail. Mainsail reefing is an important part of mainsail trim. Working closely with boom manufacturers, North Sails has developed highly refined standards to match the specific demands of different boom furling systems. The furled mainsail is contained in a housing section fixed to the mast. … Control lines with self-tailing winches for sail furling and reefing make the procedure easier. OVERVIEW Schaefer Marine’s Boom Furling System is the result of years of research, design and sailing. A mainsail may also be furled by a similar system, whereby the sail is furled within the mast or around a rotating boom (or around a rotating shaft within a boom). The latest generation of this well-made furling system strike a balance between total cost, performance, and versatility. We are noticing a huge increase in customers upgrading their conventional or even their in-mast units (yes, you read that right, read more below) to in-boom furling. North Sails pioneered modern Boom Furling Mainsails. There are three methods for making roller furling mainsail and UK Sailmakers offers them all. The great reliability of the system comes from the furling mechanism itself which is a unique line drive positioned just above the goose-neck (FACNOR patent). The answer is yes! The Mainsail Reefing System eliminates flogging sails in the cockpit when reefing or furling. Roller furling is a method of furling (i.e. Proven over thousands of miles of use, our unique Patented Articulating Sail Track enables you to reef or furl on any point of sail all from the safety of the cockpit. It is the most advanced solution for mainsail reefing and furling. Juxtaposed with the systems that predated them, these devices represent solid advances in equipment engineering. While most mainsails are permanently attached to the boat’s boom and are hoisted up a track on the mast, there is an increasing trend toward both in-mast and in-boom furling mainsails. This article compares the various methods of reefing the main sail, specifically mainsail reefing systems. 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