Sail Performance: Techniques to Maximize Sail PowerBased upon on Marchaj's Sailing Theory and Practice, this volume explains the many developments in sail performance that have taken place. The author explains the factors that affect sail power and why certain rigs have superior power and efficiency. |
Contents
Introduction | 43 |
Distribution of Pressure Over Sails | 57 |
The Effects of Aerodynamic Forces | 76 |
Copyright | |
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aerodynamic force airflow airfoil America's Cup angle of incidence apparent wind aspect ratio backwinding Bermuda boom boundary layer camber cent chord CLmax close-hauled component course sailed crab claw sail crew curve degrees depends developed drag angle Drag coefficient driving force coefficient effect efficiency fabric factors flap flow foil foresail ft/sec genoa heading angle headsail heeling force helmsman hull hydrodynamic incidence angle increase induced drag interaction knots leading edge leech leeward side Lift coefficient luff mainsail mast measured optimum performance planform polar diagram position pressure distribution racing reduced relative Reynolds Number rolling sail area sail camber sail shape sail twist sailcloth separation shown in Fig slot spinnaker stall streamlines surface tack tests tion trim angle true wind turbulent vortex wind direction wind gradient wind speed wind strength wind tunnel wind velocity wing sail yacht