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Crew Movement Techniques
Gears and Controls
Chart 3C Heavy Air Mainsail and Jib
achieved Adjustment aerodynamic force airflow altered angle of incidence appropriate attached flow backstay boat speed boom centerboard centerline cleat clew course sailed crew weight Cunningham decrease downhaul downwind draft aft draft forward drag driving force excessive flat flatten flexibility gust response halyard heading angle heavy air heeling force hiking hoisted horizontal hull hydrodynamic force inboard induced drag Initial Setting Set jib leech jib luff jibe jibstay sag keep the spinnaker leading edge leeward surface leeward yawing leeway angle lift force light air lower mast luff curve luff tension main traveler mainsail leech maximum draft moderate air naker optimal oscillation outboard outhaul pitching position of maximum possible pre-bend pump rake reduce rhumb line rolling rudder angulation sail trim sheeting angle shift draft shifts aft shrouds side force smooth water spinnaker pole spinnaker sheet stalling steering tack twist vang tension waves weather yawing windward yawing yawing balance