OK Dinghy: Tuning Guide with Charlie Cumbley | North Sails OK Dinghy class expert, Charlie Cumbley, demonstrates how to set up and tune your rig correctly to complement your North sail. Visit
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Amazon.com: The North U. Fast Course: North Sails' Guide to Sail Trim, Rig Tuning and Crew Work: North Sails: 圖書
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Sail Trim and Rig Tuning: A Captain's Quick Guide (Captain's Quick Guides) - Gladstone, Bill: 9780071440134 - AbeBooks
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