Sven Yrvind · video

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Sven Yrvind is fitting sails on a 1/5-scale model of his new boat and comparing sail areas across his designs. Each of the three sails on the new boat measures 3 square meters, giving a total of 9 square meters.0:11 His previous boat carried 2 square meters per sail and 4 square meters total.0:20 The Optimist reference point is 3.5 square meters.Watch The new boat is also more easily driven, which he expects to compound the benefit of the larger sail plan.0:28 He is planning a new routing strategy: from his home area, the destination is 6,000 miles away, a passage he previously avoided because of night winds, shipping lanes, and associated hazards.0:42 The increased sail area and easier hull form change that calculation and should also bring him to "the Dean" faster.1:05 Working on the model, he trims 2 centimeters from the mast — equivalent to 10 centimeters at full scale — intending to build the real mast taller and cut it down incrementally to find the optimum height.1:27

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