Illustrated Sail & Rig Tuning: Genoa & Mainsail Trim, Spinnaker & Gennaker, Rig Tuning by Ivar Dedekam
A beautifully, uniquely illustrated nautical guide to how to trim your sails and rig for maximum performance. With a revolutionary approach, this guide tackles the practical and realistic elements of tuning your boat, plus the theory of sail aerodynamics.