Sail and Rig Tuning Author:Ivar Dedekam Fantastic computer graphics systematically explain how to tune-your-yacht, keelboat or dinghy. �This beautifully illustrated and well-organised book shows the reader step by step, how to trim their sails and rig for maximum performance.� Ivar Dedekam?s revolutionary approach to sail and rig tuning tackles the practical and realistic eleme... more »nts of tuning your boat as well as the theory of sail aerodynamics.� The book covers the many variations in boat, sail and rig design.« less