One of distinguishing features on the boat is an adjustable traverse bipod mast (typically made of carbon) that is positioned halfway to improve downwind sailing. There is a specially designed convertible headsail that consists of two collapsed genoas with an insert in-between. The latter is an elongated 12 m long sail in the shape of a laurel leaf, also called patch sail. Genoas and the insert are fixed like piano hinges on a double fore stay. There are in fact two 6 mm thick dyneema fore stays. When drawn together tight (mast stands upright) the patch sail is folded in between the two genoas. At side wind it all functions like a standard genoa that has a 30-40 m2 surface area, except that there are two sheets of sail. When running 135°-225° wind quadrant, the genoas are fully unrolled and held in a “butterfly” position by two poles. The mast is leaned forward by 10° while the fore stays move apart and the patch sail is spread open. This gives about 100 m2 of sail with bulged shape. It resembles a “low aspect spinnaker” except that it is fixed on four spots. The full batten performance mainsail is not used during running, but furled in the boom. By restoring the mast to its upright position the fore stays come together and genoas are furled until the patch sail disappears. When sailing close hauled the main sail is used together with a 13 m2 self-tacking jib (stay sail). It is fixed with karabiners on a cable that is used to fasten the mast when it leans. When passing under a bridge or making repairs the mast can be lowered within minutes and raised again, even at rough seas.