A flying sail is a sail that is not attached at the front. Spinnakers are a type of flying sail, asymmetrical spinnakers are as well. Most headsails are attached to a wire in the front of the boat, either by a furling unit, or a wire. I developed a design that allows the sail to fly free in the front and still act like an attached jib, genoa, or drifter. These are not just light air nylon sails, but I build them using Dacron and Cruising laminates. The picture I sent last week is a flying headsail for a 41 ft. boat. It is made with nylon, but it is a heavier weight than normal for a spinnaker. It acts like a headsail and will point into the wind and when eased, it work off wind or downwind as well. The G-Spinn is a type of flying sail. Not attached at the front, but will point into the wind when the luff or leading edge of the sail is tightened.
Click on the flying sail images below to see a larger photo.