The Rooster 8.1 sail is constructed with long life and performance in mind. In addition to 4oz Dacron cloth in the main body, the leech is constructed of Mylar, as this is where the highest loads occur. This means that permanent leech stretch is reduced to almost zero. Leech flutter in between battens is eliminated. The Bi-radial construction contributes to increased cloth stability and so making the sail easier to control its power. The large window also helps with visibility when racing. All parts of the boat are based on the Laser® but the class uses a longer lower mast some 740mm longer. For export there is a glass fiber extension piece used and for UK sales there is a one piece aluminum lower mast. Class rules are being written that do not control the angle of the rudder. Author: Steve Cockerill