Рет қаралды 1,000
Inspired by a mainsail made by Steve Knowland in the UK, the concept is a double mainsail with an articulated foam wing between the two layers of the sail, rotating around the mast. The aim is to a) make a more efficient mainsail and b) provide buoyancy inside the sail to stop the boat going upside down in the event of a capsize. Seems to work!