The photos are with the mainsail dropped in order to show the sail better.Īdditional pictures of the SF 31 with the 35 m2 code 0. This is when many people like to sail but they find their boats slow and no responsive, that is they loose much of the fun.Ī code 0 genoa is a way to tackle this problem. The successful rolling of the sale takes some training, the halyard should be rather tight and the sail should be free when rolled.įor reasons of safety and comfort cruising boats are designed so that they are clearly underpowered in light winds. If I know that I am going to use the sale I hoist it up already in the harbor before getting out and take down only when back. The roller is a Harken roller which works almost without friction. It is as easy to hoist, up, to open, to roll in, to take in and to lower directly to the forward hatch. One of the special features of such a sail is that it does not call for force at all.
I do not have enough experience to know where the sail can be put when reaching at 70 / 80 / 90 / 100°. The effect of the sail is based on two factors, the area itself and its effect on the apparent wind direction and apparent wind speed (when close hauling). When you are at apparent 80 you might find that the true wind is at 110 or so. It has a big effect on the apparent wind as well. The sail works from about 40 ° to more than 130° and according to my experience the area were the boats sails really very well is large. I think these are good speeds and the boat handles in a very nice way as there is some pressure on the sails even at low winds. At 9.5 knots apparent you can reach 6 knots. At 8 knots true wind you can well get a steady 5 knots on the GPS, which is already quite a nice speed. The results are pretty amazing when the wind is weak. I am not able to say if there was some gain, but all went without any problems. The hardest wind has been 15-16 knots apparent at 40-50° which is already out of the design area as at such a wind the boat sails handsomely with its normal genoa. I have tried out the sail in variable conditions and my experience is as follows : This gives some real extra power to the boat. The new Code 0 has an area of 35 m2 so that the total sail area upwind is about 23,7 (main) + 35 = 58,7 m2. As I have only a normal genoa on a roller I guess the size is around 24 m2. The Sun Fast Genoa 1 should be about 27 m2. The genoa is a so called flying Code 0 sail, which means that it is a lot larger than a Genoa 1. This year I have added a new genoa to my limited wardrobe (main, heavy genoa on furler and spinnaker) in order to improve light weather sailing and reaching. I am a happy owner of a Sun Fast 31 since some years. Genrell you can say that the perfect wind angle for a spinnaker is between 180 and 130 degrees wind angle.Code Zero Sails Simo Brummer - former owner of Sun Fast 31 "Simone" FinlandĬode 0 - sailing faster than the wind with a Jeanneau cruiser.
Spinnaker made of light cloth for low wind, and heavy cloth for more wind. Full and bulbous designs for more power before the wind. Flat cuts with which you can sail higher in the wind. Of course there are many different sail designs for spinnakers. There are different designs for spinnakers.
If the target is directly in front of the wind, it can be faster to cross in front of the wind and to jibe more often. Wind speed and boat speed do not cancel each other out as much. If you change course to a wind angle of 160 degrees instead of 180 degrees, the wind vectors change. If 10 knots wind speed blows and you have a boat speed of 4 knots, the true wind is only 6 knots strong. However, directly in front of the wind, the wind speed and the speed the boat makes through the water cancel each other out. So that the wind comes directly from the stern. With a spinnaker you can easily sail with a wind angle of 180 degrees. If your boat is equipped with spinnaker equipment, you will have a perfect downwind angle.
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