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12 July 2005

Ultimate Sailing. Stephen Bourn. 12 July 2005. www.wingbornehydrofoil. com. Velocity triangle. Boat velocity. Apparent wind angle 30 . True course. b. g. Apparent wind. True wind. Aero force. Hydro force. e A - aero drag angle. e H - hydro drag angle. f A - aero elevation

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12 July 2005

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  1. Ultimate Sailing Stephen Bourn 12 July 2005 www.wingbornehydrofoil.com

  2. Velocity triangle Boat velocity Apparent wind angle 30 True course b g Apparent wind True wind

  3. Aero force Hydro force eA - aero drag angle eH - hydro drag angle fA - aero elevation angle fH - hydro elevation angle Air velocity b – apparent wind angle Water velocity Gravity force

  4. eA eH fH fA eIH – projected hydro drag angle b eIA – projected aero drag angle True wind velocity g – true course

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