![]() The Code Zero is a cross between a genoa and an asymmetrical spinnaker used to sail close to the wind in light air. Code Zero or Screecher – upwind spinnaker.This is optimal for generating lift at larger angles of attack. It has a more significant camber than a genoa (but significantly less camber than a spinnaker). The gennaker is rigged like a spinnaker, but the tack is fastened to the hull or a bowsprit. ![]() It is not symmetric like a true spinnaker but is asymmetric like a genoa, but the gennaker is not attached to the forestay like a jib or genoa. Gennaker – a crossover between a Genoa and Spinnaker.Its larger surface area increases the craft’s speed in light to moderate winds in high wind, a smaller jib is usually substituted, and downwind a spinnaker may be used. It is used on single-masted sloops and twin-masted boats such as yawls and ketches. It was initially called an “overlapping jib” and later a genoa jib. Genoa – large jib that overlaps the mainsail.Jibs and spinnakers are the two main types of headsails on a modern boat. Its tack is fixed to the bowsprit, the bows, or the deck between the bowsprit and the foremost mast. Spinnaker: A sizeable balloon-type sail attached to the mast at the bow (front) of the boat, used when sailing downwind.A genoa jib, on the other hand, overlaps the mainsail, providing maximum power in light winds There are several sizes of headsails, either a jib, a genoa, or a spinnaker: A working jib is a smaller jib that fills the space between the mast and forestay, used in stronger winds. Headsail: The sail between the forestay line and the mast.Mainsail: The larger sail aft (behind) the mast, attached to the mast and the boom.The rest of the time, a sail is essentially an airplane wing standing on end and works the same way. Sails work by “catching the wind” only when the boat is sailing downwind. Apparent wind is the air velocity experienced on the moving craft and is the combined effect of the true wind velocity with the sailing craft’s velocity. SOUTHERN CALIF.- A sail provides propulsive force via a lift and drag, depending on its angle of attack, its angle with respect to the apparent wind. Stay tuned for the next lesson, which will explain when to use the correct sail. Ahoy Sailors, now that you can navigate your sailboat through different weather conditions, it’s time to learn about all the different sails on your boat, how to sue them and what they do.
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