downhaul การใช้

• The sail is tuned by adjusting the downhaul and the outhaul.
• Releasing the downhaul tension shifts the center of effort up.
• Downhaul setup offers 3 : 1 purchase.
• The cunningham differs from a typical downhaul in the way that it attaches to the sail.
• He skippered the first victorious 12-metre yacht cunningham downhaul to increase the speed of racing sailboats.
• When sailing dead down wind, it may be helpful to use a downhaul to reef larger sails.
• Mainsail controls permitted by the class are downhaul ( Cunningham ), outhaul and kicking strap ( Vang ).
• Most shape is given to the sail by a very strong downhaul, bending the mast in the luff tube.
• A windsurfing sail is tensioned at two points : at the tack ( by downhaul ), and at the clew ( by outhaul ).
• "When I tried to use their water to rinse off the downhaul on my boat, they told me, no, I couldn't do it,"
• In the performance class additional parts from the manufacturer are allowed such as carbon fibre mast sections and an aerodynamic shell, adjustable downhaul and modification of the sail battens to alter the shape of the sail.
• In sailing, a "'cunningham "'or "'cunningham's eye "'is a type of downhaul used on a Bermuda rigged sailboat to change the shape of a sail.
• The boat has a 3 : 1 purchase downhaul ( upgradable to 6 : 1 ) to tension the mainsail and an outhaul ( standard 1 : 1, upgradable to 2 : 1 ) to flatten the mainsail along the boom.
• More downhaul tension loosens the upper part of the leech, allowing the top of the sail to twist and " spill " the wind at the gusts and shifting the center of effort ( strictly, the center of pressure ) of the sail down.
• The spinnaker pole may be allowed to raise and lower with the force of the wind, or it may have lines attached to it to raise ( the " topping lift " ) and lower ( the " foreguy " or " downhaul " ) the angle of the pole.