For cruising boats, Double-Taffeta Titanium cruising sails are a great option instead of heavy, multi-ply Dacron or radially-paneled sails. Double-Taffeta Titanium sails are made with continuous loadpath yarns fused between two layers of film. The exposed side of the film is covered with a finely woven polyester taffeta – creating a five-layer sandwich.
Titanium® sails are made with a grid of continuous carbon loadpath yarns running unbroken between the three corners of the sail; those yarns are laminated between two layers of 3D-shaped film. In the Titanium construction process, the yarns are laid dry–without glue–to reduce weight and to prevent the carbon yarns from becoming brittle. The mylar films are tacky on the inside from the copolymer coating; this holds the yarns and films in place until the final lamination has been completed.
The five layers (taffeta, film, loadpath yarns, second film layer, taffeta) are dropped into a variable geometry thermo form in which the sail is heated and UV-bonded under vacuum pressure to become a one-piece finished membrane.
Not coating the yarns with glue makes for lighter (by 15-30%), more flexible, and more durable sails, which makes happier foredeck teams and happier owners who are not replacing their misshaped and broken sails as often.
Yes, there are seams in a Titanium sail, but they are there simply to shape the film layers. Unlike most high-tech sails in which structural yarns only run the width of an individual panel, a Titanium sails continuous yarns eliminate seam loads, load-induced seam distortion, wrinkles, or worse yet, seam failure. Titanium sails are smooth and wrinkle free.
Uni-Titanium sails are the fastest sails UK Sailmakers makes and that claim is backed up by the fact that customers sailing with Uni-Titanium sails have been able to increase their upwind target speeds compared to pervious sails. If youre interested in making your boat sail as fast as possible, its important that you understand what makes Uni-Titanium so different.
Uni Benefits Before the development of Uni-Titanium, all sails suffered from shape instability: in puffs the sail gets deeper and the draft moves aft, when the wind softens the opposite happens. Even with string sails, shape instability comes from the fact that most of the loadpath yarns run parallel to the leech or luff – along the sails primary loadpaths. There is not enough stability in the pure loadpath design for the sail to compensate fully for secondary and tertiary loads.
Uni-Titanium Construction To overcome these performance-robbing shape distortion issues, UK Sailmakers developed Uni-Titanium, membrane sails with sheets of uni-directional carbon added to the continuous carbon fiber yarn layout in a leach to luff orientation. The uni-directional carbon sheets used have the thickness of magnetic tape and are just as light. The four layers in a Uni-Titanium sail (Mylar, loadpath yarns, uni-carbon layer and second Mylar layer) are placed in a variable geometry thermo form in which the sail is UV-bonded under vacuum pressure to become a one-piece finished sail. The result is a sail that holds its shape in puffs and lulls. In fact, Uni-Titanium sails hold their shape until a sail trimmer makes an adjustment to change the sails shape.
The UK Texas J/70 sails were developed by combining the available information on this new class, alongside of our experience with light displacement sailboats and other J/classes, using all UK Technology sail design program (One of the most advanced sail design programs), allowing us a complete 3D view and multiple panel configuration.
UK Texas designed an all-purpose mainsail utilizing cross-cut Dacron with radial corners and a radial Jib made of square Dacron, which was made for all conditions. We have also designed a heavy air radial Mainsail. The kite was designed by UK Chicago, and is constructed with AIRX Nylon. It was designed to sail deep while keeping on plane yet does not lose performance in light breeze. Since the J/70 has a stiff Carbon fiber mast, we chose a cross-cut panel configuration with radial corners for the AP Mainsail in order to have enough variation of shape for different wind conditions and a Tri-radial Jib with 245SQ Dacron in order to hold the shape for all conditions. Sails are made in USA at our loft in Houston TX.
Founded in 1946 in New York City as Ulmer Sails, UK Sailmakers is one of the world's most established groups of sail makers with nearly 50 lofts and service centers. It is our goal to deliver sails using the most advanced design technologies and materials. Our lofts retain the personal touch that sailors expect since all UK Sailmakers lofts are owned by local sailors, who know the needs of their sailing communities. That's why each loft prides itself in providing quick, high-quality service along with well-designed, long-lasting sails.