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 elements of tuning your boat as well as the theory of sail aerodynamics. The book covers the many variations in boat, sail and rig design.

Ivar Dedekam has been sailing for more than 25 years and has logged close to 50000 nautical miles, including two Atlantic crossings. He has in addition worked for many years as a sailing instructor.

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