![]() ![]() The spinnaker is the most complicated sail to set up, control and bring back to the deck. It is also gradually adopted by pleasure sailboats, especially due to the absence of outrigger operations : it operates almost like a classic headsail. It cannot be used to upwind, and performs poorly downwind. Easier to use, more stable, it is used from close reach to broad reach. The asymmetric spinnaker’s tack is maintained by the bowsprit, attached to the bow of the boat. « Of more recent development, but in the line of very hollow headsails (balloon jibs, precursors of the symmetrical spinnaker, and then become gennakers), the asymmetric spinnaker was first designed for racing : As the speed of the boats increases, the apparent wind swivels forward, so more efficient sails were needed with speeds close to the wind (specifically for multihulls, and certain fast monohulls : ULDB, Australian-inspired gliding dinghies…). ![]() It is in no way integrated into the sail.ĪSYMMETRICAL SPINNAKER ACCORDING TO WIKIPEDIA : In France, the gennaker is a sail with integrated anti-torsion while for most of other countries, the gennaker is an asymmetrical spinnaker without anti-torsion ! A French gennaker is more like a screetcher in other countries.Īlso, be careful, the manufacturers of spinnaker furlers speak of anti-torsion, but in the case of a spinnaker, this cable is only the link between the furler and the swivel and a support on which the spinnaker is furled. The term gennaker is particularly misleading. – Those which do not incorporate an anti torsion cable and they are then spinnakers There are all sizes and many names : Code J, code 0, … – Those which have an anti-torsion cable integrated in the luff of the sail. To simplify, there are 2 main families of headsails : The names of the sails change over time, depending on the region and use. We will therefore focus more naturally on these. ![]() The furlers are designed to work with asymmetric spinnakers. The asymmetric spinnaker is used over a range of bearing wind angles greater than the symmetrical spinnaker. The asymmetric spinnaker is a more versatile sail, smaller, more resistant, less hollow and with the leading edge (tack) longer than the trailing edge (sheet). The symmetrical spinnaker is a sail which is used full downwind. There are many forms of spinnaker but the two main ones are the symmetrical spinnaker and the asymmetric spinnaker. ![]()
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