There has been a significant amount of hype and hyperbole about the development of headsails without furling torque-cables, and, like most good ideas, this concept has been around for a while. At North Sails their designers began working on this concept with Oracle Team USA and Emirates Team New Zealand during the 34th America’s Cup, when radical boat designs placed extreme loads on the 3Di headsails.
The design and engineering challenge was to deliver a solution where headsail loads were redistributed from the torque cable/headstay and shared with the sail. Known within the North offices as Load Sharing Technology this feature, when paired with a 3Di Helix Luff, is North Sails’ answer to what others may call the cable-less headsail concept. Read on.